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-- Monsanto *''vK V l 5 > u r I AROCLOu Co?y Reslnt and Plasticizers for Chlorinated Rubber ^s./d Technical Bulletin 0-124 May, 1957 Monionlo Chemical Company, Organic Chemicals Division, SI. Louis l, Mo. Introduction 20 A- h3* w a ex K4onnto produces i series of chlorinated biphenyls and polyphenyls identified by the trademark Aroclor* for use as plasticizers and resins for chlorinated rubber base lacquers, varnishes and paints. These protective coatings are fire resistant, corrosion resistant, chemical resistant (to acids, alkalies and water), and have good electrical insulating properties. When properly pigmented, these coatings have good weatherability. Chlorinated rubber films plasticized with an Aroclor grip common structural materials m strong adhesive bonds. Addition of an Aroclor improves the flexibility and life of chlorinated rubber and plastic coatings. l * o'> h" 73 o a Vm* A a. 20 eer tar The formulations suggested in this bulletin are common in commercial practice. They are given as a starting point or guide in developing formulations that expand the outstanding qualities of these compounds. Arcelor: Monunto Trxdcmxrk. Rej. U.S. Pat. Off. 9Ze9s o' l 4r *n -* SL 5 cd NC 9 o The inlermelion cUmvd i* thii boMie , * * bet* fcnwt*de*. tf* #nef #e*r*f, bet *11 or rt md without 9v*r*At*. *in<a tb* conditions ol in* * be road owr control. 7 h* Mor**Io Chemical Company declaim any lability ieevr/ad in connection with tha at* el theti dot* tv99*>n*. faflhtimore. nothing contained beitin nboll be contrived i a tocommond^on to via any prodvet in cenfUcl with aiiiting patanh C*r*i)| any material or <ti via. MOMS TOWOLDMON0046084 Some important applications for protective and decorative coatings plasticized with Aroclor compounds-- Wood and metal used in yachts, barges and other marine craft. Structural steel for bridges, buildings, roofs and power-lines. Structural materials at chemical plants, pulp and paper mills, textile mills, petroleum refineries and gas works for protection against acid fumes, alkalies and gas. Tank cars and other rolling stock and construc tion machinery for protection against corro sive materials and weathering. Equipment and stop-off lacquers used in elec troplating. . Masonry floors and walls. Concrete swimming pools. Highway markings. Cable coatings requiring fire resistance, chemical resistance, and excellent electrical properties. Textile coatings resistant to chemicals, fire and water. -1 - HONS 074313 TABLE OF CONTENTS Naming and Preparation of Arodor Compounds_________ Page 3 Properties of Chlorinated Rubber . Generalr........................................................................ .......... .......... .. 4 Physical'.-...................... 4 Chemical Resistance!4 Electrical4 Mechanical_____ 5 Thermal5 Physical-Chemical 5 Viscosity Types---------------------------- 5 Solvent Compatibility-------- ---------------------------------------------------------------------------------- 6 Formulation and Properties of Chlorinated Rubber Formulation for Arodor Resins__________________ Formulation for Arodor Plasticizers6 Properties of Formulated Films_________________ 6 7 Applications Alkaline-Resistant Coatings----------------------------------------------------------------------- 8 Chemical-Resistant Finishes B Marine Finishes9 Emulsion Paints_________________________________ 9 Adhesives------------------------------------------------------------------------------------------------- 10 Paper and Textile Coatings_____ ____________ :--------------------------------------- 10 Electrical Coalings_____________________________ 10 Printing Inks----------------------------- 10 Resins for Chlorinated Rubber__________________________ II Monsanto Plasticizers for Chlorinated Rubber.................... _.................... ................... II Toxicity..------------------- 12 Shipping Information..--------------------------------------------- '----------------------------------------- 12 Trademark Index..------ --------- ------------------ ......-------------------------------------- ---------- . - 13 This bulletin replace! technical bulletin P-124. I l MONS 074314 TOWOLDMON0046086 Naming (and Preparation) of Arocior Compounds Aroclor 4465--a 60:40 mixture (biphenyl to terphenyl) with 65 per cent chlorination. Arocior 1565--a 75:25 mixture (biphenyl to terphenyl) with 65 per cent chlorination. The physical properties of the Arocior plasticizers vary gradually with the degree of chlorination.. At low percentages of chlorine, such as Arocior 1221 and 1232, the compounds are clear and very.fluid. At 42 per cent they resemble vegetable oil; at 48 per cent they thicken slightly and look more like a medium-grade mineral oil. At 54 per cent chlorine, the compounds are quite viscous; if a bottle containing them is turned upside down, the bubble rises slowly to the top. At higher percentages, the biphenyls become gumlike, and a fingerprint on the surface last* several days. Then at 68 per cent chlorine, the. range is complete; Arocior 1268 is a white powder. The terphenyls (Arocior 5442 and 5460) are both yellowish solids; The gradual change in physical properties often allows a processor to select a plasticizer particularly suited for his operation. For example, if he wants, to dry mix the plasticizer, Arocior 1268 could be used. It melts at higher processing temperature and can act as a solvent-plasticizer. -3- . HONS 07A315 TOWOLDMONOQ46087 Properties of Chlorinated Rubber ``ParIon" is a mixture of two polymers with an average chlorine content of 67 per cent made by chlorin ating natural rubber. The typical properties of "Parlon" as given by the manufacturer, Hercules Fowder Company, Wilmington, Delaware, are listed in Table I. Tabid 1. Typical Properties of "Parlon" General Form as shipped.................. ................................................................... White, granular powder Color of film...................................._..................................................... Water white Odor.......................................................................................................... None Clarity of film........................................................................................ Good Taste.... ......................................... ........... ........................................-.....None Moisture, per cent as shipped.......................... .................................. O.S maximum Physical Specific gravity................. ..........................................................-...........1.64 Specific volume, as shipped, in cubic inches per pound....................... 16.9 Bulking value, gallons per pound.................. -..........--............... -.....0.073S Index of Tefraction...................................................................................1.554 Chemical resistance to: Acids, weak.................... Acids, strong.................. Alkalies, weak................ Alkalies; strong.............. Salt spray....................... Alcohols...................... . Ketones...................... .... Esters.............................. Hydrocarbons, aromatic. Hydrocarbons, aliphatic. Oils, mineral........... ......... Oils, animal.................... Oils, vegetable................ ..excellent ..excellent .excellent .excellent .good .excellent .soluble .soluble .soluble .good good .poor .poor Eiactrical (deer unplosficired film*) Specific surface resistance, ohmsXlO*................................................. 2,000 Dielectric strength, volts per mil (ASTM method)............................. 2,300 Dielectric constant at 25C. and 1,000 cycles.....................................3.1 Power factor at Z5C. and 1,000 cycles................................................ 0.0015 to 0.0030 Power factor at 25C. and 1,000 cycles, after immersion in water for 140 hours and surface wiped dry.................................. 0.0027 pilmi uied in (riti were laid down from i toluene o)ution. . HONS 074316 TOWOLDMONOQ46088 Proprfi, coni'd. Mechanical (clear unplasficized film*) 20-cp. type Tensile strength, pounds per square inch, dry...............................44,,227700 Tensile strength, pounds per square inch, wet...............................44,,110000 Elongation, per cent, dry...............................................................33.6.6' ' Elongation, per cent, wet...............................................................33.8.8 Modulus of elasticity, pounds per square inch.............................. 1..44XX1100-s' Hardness, Sward index, per cent of glass........................ ....90 Note: Fleiftjility of "Parlon"* film incretter with iircority of "Parlon" used. 1,000-cp. 4,850 4,360 3.3 3.4 -- _ Thermal (clear unplasficized film*) Burning rate....................................................................... -.......... nonflammable Effect of dry heat on film.......................................................... stable up to and at 125C. Softening point................................................................................decomposes at 135 to 150C. Physical-Chemical (clear unplasficized film*) Effect of sunlight........... ..............................................................Discolors and embrittles Effect of aging.............................................................................. Very slight Effect of hot water...................................................................... Blushes Effect of cold water......................................................................None Moisture absorption (80% relative humidity for 24 hours), per cent..................................................................................... 0.27 Moisture vapor permeability of 0.003-inch film (grams water/ square centimeter/0.01 centimeter/hour at 21C.)............0.2X101 Viscosity Types Table II. "Parlon" Viscosity Types Yiseosity Type Viscosity Range (cantipoises) 5 Cp...................................... -........................................................ -................... 5 ID 7 10 cp...............................................................-..................................................... 8 to 12 20 cp................................................................................. -................................... 16 to 25 125 cp......................................................................................................................110 to 190 1,000 cp........ ............................................................. ............................................... BOO to 2,000 Examples of actual or suggested applications of the several viscosity types are given below: Typa Example of Use 5 cp. In printing inks and as a fortifier for alkyd resin enamels. 10 cp. In high-solids finishes and as a fortifier for alkyd resin and oleoresinous varnishes and enamels. . 20 cp. As a film-former in protective coatings and as a fortifier in enamels and varnishes. 125 cp. As a film-former in protective coatings, in paper lacquers, adhesives, and textile finishes. 1,000 cp. As a film-former in adhesives, textile finishes and other finishes where flexibility is important. Tflmi used in teu were laid down from a toluene solution. 5TOWOLDMONOQ46089 Solvent Compatibility Solvents and solvent mixtures suggested for use in preparing formulations with Aroclor and "Parlon" are given in Table III: Table III. Suggested Solvents for Compositions with Aroclor and "Parlon" "Amseo Solv," B and E Amyl acetate Butyl acetate Carbon tetrachloride "Celiosolve" Diacetone alcohol Diethyl carbonate Ethyl acetate Etbylene dichloride Hl-Flash naphtha Methyl acetate Xylene Methyl ethyl ketone Methyl isobutyl ketone Methyl salicylate N'otol Octyl-acetate "Sovasol"`Nos. 74, 75 "Solvesso 100" "Tollac" Toluene "Union Aromatic Solvent" 3553-10 "Union Solvent No. 30" Formulations and Properties of Chlorinated Rubber Chlorinated Rubber Films ' Aroclor IZ62 and 5460, resinous types, show good compatibility in chlorinated rubber films laid down from toluene solution containing 20 per cent of the plastic in ratios of 2:1 and 1:1 ("Parlon" to Aroclor). The plasticizer types, Aroclor 1242, 12S4 and 1260, also show good compatibility. Formulations and properties of films derived from both resin- and plasticizer-type Aroclor are listed below. Table IV. Formulations for Aroclor Resin ingredient Parts by Weight "Parlon," 20-cp..............................................16 16 16 12 12 Aroclor 5460............................................ 8 8 8 12 12 Dibutyl pblhalate......... ............................... -- 4 3 Tung oil, Thermolyzed, 976........................ -- -- 5-- Xylene or butyl acetate....................... 76 72 71 76 73 U U 3.75 72.25 Table V. Formulations for Aroclor Plasticizer Ingredient "Parlon," 20-cp................. ...... 20 Aroclor 1254 or 1260...... .... .... ..... ....... 4 Xylene................................ ....... 76 Parts by Weight 20 7 73 20 20 70 - 6- HONS 074318 TOWOLDMON0046090 Films cast from these lacquers show improved characteristics due to Aroclor. Some of their advantages are listed below: Adhesion Unplastlcizcd chlorinated rubber films have very poor adhesion. The lacquer film containing Aroclor 5460 gave good adhesion to aluminum, bare steel, primed steel, galvanized iron and "Transite" surfaces. Othe* commercial resins, particularly oiUmodified alkyd resins, gave better adhesion to glass, tin, copper, sealed wood and cellophane. . The lacquer films plasticized with Aroclor 1254 or 1260 gave good adhesion to `Transite," cellophane, gal vanized iron and primed steel surfaces. Some of the other commercial plasticizers tested in similar films gave better adhesion to aluminum, tin, bare steel, copper and scaled wopd surfaces. Though compounds with an Arodar alone possess pronounced adhesive qualities, better adhesion to all of the surfaces results if mixtures of Arodor or varied contents are used. Resistance fo Aqueous Solutions Chlorinated rubber films with Arodor 1254 or 1260 (plasticizers) and Aroclor 5460 (resin) show satisfac tory resistance to solutions of 10 per cent hydrochloric acid, 5 per cent sodium hydroxide, 5 per cent sodium chloride and water spot tests. film Hardness Softer films were produced with Arodor 5460 in ratios of 5:10 and 10:10 (Arodor:'`Parlon") than with other commercial resins in similar mixtures. Likewise, softer films result from Arodor 1254 or 1260 in ratios d 2:10 and 5:10 (Aroclor:"'?arlon") than with other commercial plasticizers at these concentrations. From these tests compounds with Arodor are shown to have strong plasticizing action on chlorinated rubber. Cold-Check Resistance Aroclor 5460 is superior to phenol formaldehyde resins in cold-check resistance imparted to chlorinated rubber films, but not as good as alkyds modified with long oil. Arodor 1260 used as a plasticizer proved somewhat better than Aroclor 1254. Weather Resistance Pigmented chlorinated rubber finishes containing Aroclor have consistently withstood outdoor weather tests, but unpigmented finishes do not stand up well regardless of the resin or plasticizer used. Poor resistance to ultraviolet light is also a weakness of chlorinated rubber, Most pigments (except ultra marine blue) are usable with "Parlon" and are recommended if the coating is to be subjected to outdoor weather or ultraviolet light. However, pigment protection varies considerably. Inspection of alkyd enamels fortified with "Parlon" showed weatherabiiily varied from 63 months with chrome green to 4 months for titanium dioxide--iron blue combinations. Sanding and Polishing Properties Plastic films compounded with "Parlon" and containing ,4rnc/or 5460, 1254 and 1260 have shown satisfac tory sanding and polishing characteristics. - 7- M0NS 074319 TOWOLDMONOQ46091 Applications Alkaline-Resistant Coatings ' Products containing Aroclor and chlorinated rubber are highly resistant to alkalies and moisture. Paints with combinations of Aroclnr and chlorinated rubber are used in large quantities lor concrete floors, walls, swimming pools and other surfaces. A paint formulation is given in Table VI. Table VI. Paint Formulation for Alkaline Surface (Ports by Weigh)) Ingredient "Parlon," 20-cp. type................ . ......... Aroclor 12S4................................... "Rezyl 869".................................... Aroclor 5460 or "Cumar PlO"....,.......... "Beckosol 31"................................ Tung oil, Thermolyzed, 976......... ......... Titanium dioxide............................ ......... Zinc oxide....................................... ......... Silica flour...................................... ......... Carbon black....................:............ .......... Xylene............................. *............... ......... Hi-Flash naptha............................. Totals................................. ......... Formula 1 (basamant floors) 18 -- -- 16 2 3 0.2 42.8 100 Formulation Formula 2 (Fod. Spot. TT-MI) 18 10 -- 6 -- -- 16 2 -- 0.5 47.5 -- 100 . ' PormuU 1 (swimming pools) 14.6 4.4 -- -- 2.9 4.4 19.7 6.5 -- -- -- 47.5 100 Chemical-Resistant Finishes Particular care is necessary in choosing resins and plasticizers for chemical-resistant paints. Chlorinated rub ber formulations with an Aroclor have proved outstanding for acid and alkali resistance. Five formulations are shown in Table VII. Table VII, Formulations for Chemical-Resistant Paints (Parts by Weight) Ingredient 1 Interior uso, aeMi and aftalloi 2 Erteiior acids Formulation ] Exiarior U| 4 Mtsimum rotistanco, aeidt and alt* lias 'Parlon," 20-cp. type........... Aroclor 5460.......................... "Bakelite XJ-12895"............ "Reayl 807" (solids)............ Aroclor 1254.......................... Aroclor 1260.......................... Tung oil, Thermolyzed, 976.. Iron oxide............................. Titanium dioxide.... ........ . Zinc oxide.............................. Zylene..................................... Hi-Flash naphtha................. Toluene................................... Totals.................... -- 16 6.4 -- -- 8 -- -- 16 -- -- 53.6 -T-- 100 16 -- -- 6.4 4.8 -- 4.8 16 -- -- 52 -- -- 100 16 -- 6.4 -- 4.8 -- 4.8 16 -- -- 52 -- -- 100 18 -- -- -- 8 6 -- 18 -- -- 39 11 -- 100 / l Soap 12 6 -- -- -- -- 7.7 -- 18 6 28 10.3 12 100 - 8- MQNS 074320 TOWOLDMONOQ46092 I 1 These formulations were applied to metal bars or panels and tested for resistance. Formula I showed good resistance to 10 per cent hydrochloric acid and 5 per cent sodium hydroxide solutions. Formula 2 gave excellent outdoor protection to metal surfaces on plants manufacturing acids. Formula 3 performed well on -exteriors of plants producing alkali. Formula 4 had excellent resistance to acids, alkalis and salt solutions. It also showed good adhesion to glass and other surfaces. Formula S proved good for resistance to warm, soapy water. Note: No finishes with Aroclor or chlorinated rubber are recommended for con tinuous exposure at temperatures above 140 F. Marina Finishes The marine industry makes great use of chlorinated rubber coatings plasticized with Aroclor to protect wood and metal on boats, barges and other marine equipment. They possess good resistance to salt water and their hard finish deters algae and other marine growth. A suggested formula for a white marine paint is given in Table VIII. Tabk VIII. Formulation for a Chlorinated Rubber Marine Paint I Ingredient "Parlon," 20-cp. type. Aroclor 1254------------"Rezyl 869"................ Titanium dioxide........ Xylene...... ......... ......... Hi-Flash naphtha------ { Parts by Weight ...... 20 -.... 6 ..... 6 ...... 25 ....... 23 ..... 20 ....... 100 Emulsion Paints If chemical resistance is required or porous surfaces, Aroclor 1254 is often added to chlorinatrd rubt>cr emulsion paints. The Hercules Powder Company reports that preferred water phases for such pninis an either a 1 per cent distilled water solution of "Aerosol OT" or a 4 per cent distilled-water solution of sodium oleate. A lacquer-to-water ratio of 2.5 to 1 (by weight) is suggested for the complete emulsion. ,Tar!un" of any viscosity may be used. A typical paint phase for such an emulsion paint is given in Table IX. I - 9- KDNS 074321 TOWOLDMON0046093 Table IX. Formulation for Paint Phase of Emulsion Paint Ingradient Parti by Weight "Parlon"............ ..................................................................... Arcelor 1254................................................................ ......... "Cumar P10",,.......... ............................................................ Xylene...........................-....................-..........-...................... Hi-Flash naphtha............ .......--....................................... 28 14 10 24 24 Adhesives Chlorinated rubber adhesives with an Aroclor were developed originally for adhering labels to acid bottles because of their genera] resistance to chemicals. These adhesives are also of unusual interest because they are fire resistant. A typical formulation is given in Table X. Tabla X Formulation for Chlorinated Rubber Adhesive Ingredient Parts by Weight "Parlon" 125-cp. type. Arodor 1254................. Aroclor 1260.......... ..... Toluene.......................-- Total................. 20 6 6 68 100 Paper and Textile Coatings Chlorinated rubber coatings with Aroclor are worthy of consideration for specific end uses in the paper and textile coating fields. In general, this type of coating is restricted by odor and taste. Unpigmented fin ishes seem suitable for certain fabrics used indoors, but not for exposure to high temperatures or direct sunlight. * Baetricel Coatings Because of their desirable electrical properties, these compositions are useful for insulating and protecting electrical wire and apparatus from moisture. With selected fungistats and waxes, coatings of this type are used to protect electronic equipment in the tropics against moisture and fungi. The fire resistance of these plastics is an added dividend in the electrical field. Printing Inks Priming inks requiring a fast drying time and chemical resistance are often based on chlorinated rubber compositions plasticixed with an Aroclor. These inks are especially useful on soap wrappers and boxes, bottle labels and many other commodities because of their alkali resistance. -10- MONS 07*322 TOWOLDMONOQ46094 Other Resins end Plasticizers Compatible With Chlorinated Rubber The resins and Monsanto plasticizers given in Tables XI and XII are compatible with chlorinated rubber, but none gives the over-all desired qualities attained by using an Aroclor. The strong points and limitations of each are known. If their use is necessary for. specific applications in chlorinated rubber, more detailed in formation on them may readily be found. Table XI. Resins Compatible with "Parlon" "Amberol SOI, 806P, ST-137, F7" Aroclor 1262, 5460 "Aroplaz 920, 930, 935, 940" "Bakelite" XR-3180, XR-4503, XR-4006, BR-2963, XJ-9868, BR-1329, BR-3360" "Beckacite 1112" "Beckamine P-138, P-254" "Super-Beckamine 3501" "Beckapot 1400" ` "Beckosol 1 (solid), 18, 31, 34, 40, 1329" "Beetle" Resin 227-8 "Qorafin 70" Copal "Cumer P10" Dammar "Duraplex C-45-LV, C-48, C-49, C-50-LV, C-51, C-62, D-61, D-62, E-71, E-71-A, E-73" East India gum Ester gum Ethyl methacrylate "Eslerol 750" "Formvar" "Gelva 2.5" "Glyptal 1247, 2450, 2454, 2458, 2464, 2466, 2500" "Lewisol 2L, 28, 33" Methyl methacrylate polymers "Neville R-3, R-10" "Pentalyn A, G, M, X" "Petrex 1, I30H" "Phenac 633-M" "Rezyl 116, X315, 412, 775, 803, 807, 829, 869, 880, 1103" Rosin Santolitc* MPH (sulfonamide-aldehyde resin) "Stabelite Ester 1, 2,10" "Stabelite" resin "Super-Beckacite 1001" "Syntex HI, H3, H12, 17,21-3, 22, 28, 29, 32, 36" "Teglac 15, Z-152" "Velsicol AD6-3" "Mnsol" Table XII. Monsanto Plasticizers Compatible with "Parlon" Aroclor 1242 Aroclor 1254 Aroclor 1260 Dibutvl phlhalale Diethyl phlhalale Dimethyl phlhalale Santichcr B-16 (butyl phthalyl butyl glycolate) Santicizer M-I7 (methyl phthalyl ethyl glycolate) Tricresv] phosphate Triphenyl phosphate *SantoIite, Santicizer: Monsanto Tndemtrkt. U.S. Pit Off. -11- H0NS 074323 TOWOLDMONOQ46095 Toxicity Animal toxicity studies and 20 years of manufacturing and use experience indicate that Aroclor compounds are not serious industrial health hazards. If the materials are healed to volatilization, ventilation should be provided to prevent inhalation of vapors. This is true of other ma.ior components of the formulation as well u the Aroclor compounds. ' Repeated or prolonged skin contact should be avoided although there are few instances of skin irritation. Human patch tests with finished products containing Aroclor compounds have shown no irritation. Mon santo will furnish information on specific Aroclor compounds upon request. Shipping Information Regulations -- None Standard Containers -- Steel and Fiber (Aroclor 1268, 5460) drums. Rati Classification . Chlorinated diphenyl (synthetic resin, liquid, NOIBN) Synthetic resin, liquid, NOIBN Snythetic resin, other than liquid, NOIBN -- Aroclor 1142, 1148, 1154, 1160, 1162, 1168, 1221, 1232, 1242, 1248, 1254, 1260, 1268 -- Aroclor 1260 mix, 1262 mix -- Aroclor 2565, 4065, 4465, 5042, 5060, 5442, 5460 . Truck Classification Synthetic resin powder, NOI Synthetic resin, lumps or solid mass, NOI -- Aroclor 2565 -- Aroclor 4065, 4465, 5042, 5060, 5442, 5460 -12- M0NS 07432<r TOWOLDMON0046096 Trademark Index Trademark Company "Aerosol OT" "Amberol" "Amsco Solv" "AropJaa" "Bakelite" "Beckaeile" "Beckamlne" "Beckopol" "Beekosol" "Beetle" Resin "Cellosolve" "Oorafin" "Cumar" "Duraptex" "EsteroP "Fonnvar" "Gelva" "GlypUl" "Hercolyn" American Cyanamid Company Rohm- 4 Haas Company American Mineral Spirits Co. U. S. Industrial Chemicals Co. Bakelite Company Reichbold Chemicals, Inc. Reichhold Chemicals, Inc. Reichhold Chemicals, Inc. Reichhold Chemicals, Inc. American Cyanamid Company Carbide & Carbon Chem. Co. Hercules Powder Company Banrett Division, Allied Cbem. 4 Dye Rohm 4 Haas Company L. Sonnefoom Sons, Inc. Shawinigan Resins Corp. Shawinigan Resins Corp. General Electric Company Hercules Powder Company "LewisoP "Neville" "Pentalyn" "PWrex" "Pbenac" ' "Rexyl" "SolvasoP "Sdvesso" "Subelite" Ester "Subelite" Resin "Super-Beckacite" "Syntex" "Teglac" "Toilac" "TroluolP "Transite" "Velsico!" "VinsoP Hercules Powder Company Neville Chemical Company Hercules Powder Company Hercules Powder Company American Cyanamid Company American Cytnamid Company Socony-Mobfl Oil Company Esso Standard Oil Hercules Powder Company Hercules Powder Company Reichhold Chemicals, Inc. Flintkote Company American Cyanamid Company Neville Chemical Company Anderson-Pritchard Oil Corp. Johns-Manville Sales Corp. Velsicol Corp. Hercules Powder Company tiitoh-ju--) ft*vw-w.jnc /t ma -13- ensue i us.*. MONS 074325 TOWOLDMON0046097 A ROC L 0 R Racins and Plasticizers for Chlorinated Rubbar V: Monsanto si MoitMnto Technical Bulletin 0*124 May, 1957 ft* fvrtktf m tW pr*deh dncrik4 in Hits bal*fin M*t#Ct fW *Mrl> hipMMMt* Kk. ' MONSANTO CHEMICAL COMPANY ST. LOUIS, MISSOURI AKRON ATLANTA BOSTON CHICAGO CINCINNATI CLEVELAND DETROIT HOUSTON LOS ANGELES MINNEAPOLIS NEW YORK SAN FRANCISCO SEATTLE WILMINGTON MONSANTO CHEMICALS LTD. London MONSANTO CHEMICALS (AUSTRALIA] LTD. Melbourne MONSANTO (CANADA] LTD. Montreal Toronto Vancouver . HONS 07*1326 TOWOLDMONOQ46098