Document B5pywqr2yXagekwvGJnDQ10Dk
MONSANTO TRADE LITERATUIsC PERMANENT FILE S'
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Monsanto
AROCLORi
Chemicals-Plastics
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3or /Polyvinyl cdcetate Cmuliion cAdkeiivei
Monsanto Technical Bulletin No. 0-111
November, 1955
Monsanto Chemical Company, Organic Chemicals Division, St. Louis 1, Mo.
INTRODUCTION
Monsanto Arodot* chlorinated polyphenyls are a series of compounds serving a variety of needs. Each Aroctor can serve as a plasticizer for many of the synthetic resins. Properties imparted vary with the Aroclor chosen. In this respect the family of Arodor compounds is analogous to a series of phthalate esters.
Aroclor 1221, 1232 and 1242 are three compounds especially suited for plasticizing
polyvinyl acetate (PVA) emulsion adhesives.
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These are important advantages of the Aroclor plasticizers specified --
1) Excellent tack and strong bonding power are imparted to PVA adhesives.
2) The compounds are low in cost,
3) The plasticizers are light colored.
4) Aroclor 1221, 1232 and 1242 are mobile liquids at room temperature. Plant handling is simplified since no pre-melting is required.
5) The plasticizers are readily blended with PVA emulsions by simple stirring.
6) The hardness desired in various adhesive applications can be varied by - choice of Aroclor plasticizer without materially changing other properties of the adhesive.
7) The three Aroclor plasticizers recommended for PVA emulsion adhesives are comparable to orlAc-Nitrobipbenyl (a widely used PVA plasticizer), with regard to tack and fiber-tear, as indicated by tests on a porous yellow paper and a melamine-coated Kraft stock.
8) Aroclor compounds are readily available.
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TOWOLDMON0039679 WATER_PCB-00024148
COMPATIBILITY
Tests conducted by Monsanto show Aroclor 1221, 1232 and 1242 are each compatible with PVA at the evalua tion level of 11 parts of plasticizer in 100 parts of polyvinyl acetate emulsion. Each of the Aroclor plasticizers will blend with w//m-N'ilrobiphenyl, if blending is desirable. Add liquified ONB to the emulsion, then add the Aroclor.
LABORATORY DATA
Several PVA adhesive formulations using different plasticizers were made up and evaluated in our laboratories. The basic formulation consisted of 11 parts of plasticizer in 100 parts of polyvinyl acetate emulsion, Data tabu lated below will allow the adhesive formulator to choose the most suitable plasticizer for the a'dhesivc proper ties desired.
A COMPARISON OF POLYVINYL ACETATE PLASTICIZERS
Formulation Properties
ortho-Nitro''biphenyl
Dibuty! Phthelote
Aroclor 1221
Aroclor 1232
Aroclor 1242
Shore Hardness, A-scale
82 69 66 86 97
Low Temp. Flex., 0 C.
+ 2.2
-10.2
-5.9
+4.0
+ 5.3
Volatility (% plasticizer lost after 24 hrs. at 86 C.)
3.8%
4.0%
4.8%
4.3%
4.0%
Kerosene Extraction, [c/c plasticizer lost after 24 hrs. at room temperature)
3.2%
4.1%
4.5%
3.8%
4.2%
Viscosity of Formulation*
(Centipoises)
Initial
1 day
3 days
4 days
5 days
7 days
10 days
2160
--
2200
--
2280 2340 246Q.
(
2420 2460
--
2520 -- --
---
2240
__
2200
__
2200
2180
2260
Initial viscosity of the polyvinyl acetate emulsion tested was 1500 centipoises.
2160
__
2060
__
2040
2020
2060
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TYPICAL PROPERTIES AND SPECIFICATIONS
Properly
Aroclor . 1221
Aroclor 1232
Aroclor 1242
Color, APHA max.
(Specification)
Acidity, max. (mg. KOH/gm.)
Specific Gravity, 25/15.5 C. (Specification)
Pounds Per Gallon
Distillation Range*, 0 C.
Flash Point, C.O.C., 0 C.
. ,, ti
F.
Fire Point, C.O.C., C. F.
Pour Point, ASTM-D-97, 0 C.
Refractive Index, nDS6
Viscosity, S.U.S. 210 F.
(ASTM-D-88)
130 F.
(Specification)*. 100 F.
ASTM'D'20 (modified).
100'
100
100
0.014 1.182-1,192
0.014 1,270-1.280
0.015 1.381-1.392
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9.85
141-150 286-302 176 349 Crystals at 1 1.615-1.616
' 10.55
295-355
149-152 300-305
J12 415
--35.5
TS18-1.620 (Specification)
30-31 35-37 38-41
'
31-32 39-41 44-51
**No fire point op to boiling temperature.
11.50
176-180P 348-356 None**
-- 19 1.624-1,626 (Specification)
34-35 49-56 82-92
TOXICITY AND SAFE HANDLING INFORMATION
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,
The acute oral toxicity of Aroclor 1242 shows it to have an LD#0 to rats of 4.15 ml./kilogram. Presumably
the other two Aroclor compounds are in the same toxicity range. Repeated or prolonged skin contact with
these compounds is to be avoided. Inasmuch as their processing in this use does not require the use of elevated
temperatures, there should be no hazard from vapor exposure.
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SHIPPING INFORMATION
Shipping Classification (U.S.A.)
Shipping Regulations Standard Containers
.
--Synthetic Resin
-- None
-- 55 gal. black iron, nonretumable, lacquer-lined drums containing 500 lbs., net, (Aroclor 1221 and 1232) or 600 lbs., net, (Aroclor 1242).
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62/088
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TOWOLDMON0039681 WATER_PCB-00024150
AROCL0R 1221, 1232, and 1242 For Polyvinyl Acetate Emulsion Adhesives
Monsanto
Chemicals-Plastics
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Monsanto Technical BuUotin No. 0-111 Novowbar, 1955
For further information n tho products doicribad in this bulletin contact the naarast Monsanto office.
MONSANTO CHEMICAL COMPANY
ST. LOUIS
AKRON ATLANTA BOSTON CHICAGO CINCINNATI
CLEVELAND DETROIT HOUSTON LOS ANGELES MINNEAPOLIS
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MONSANTO CHEMICALS LTD. London
MONSANTO CHEMICALS [AUSTRALIA) LTD. Melbourne
MONSANTO (CANADA) LTD. Montreal Toronto Vancouver
Representatives in the Principal Cities of the World
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TOWOLDMON0039682 WATER_PCB-00024151