Document rx3z0eM21K73o95DRxR1Bo8nE

Normal lead salt of salicylic acid--a new product for the improvement of paint, plastics and rubber. (> mm A Product Development of NATIONAL LEAD COMPANY 'Dutcfc Setf NORMAS AL NORMASAL, the normal lead salt of salicylic acid, is a soft, creamy white, crystalline powder which is of interest in the improvement of light, heat, and moisture resistant characteristics of a variety of organic products. NORMASAL combines the stabilizing characteristics of both lead oxide and salicylic acid from which it is made. It has a high degree of ultra-violet light absorption in combination with some organic media. It imparts exceptional light fastness to organic films, and hence, NORMASAL is particularly well adapted as a stabilizer in the plastic and protective coating industries. NORMASAL is insoluble in the common hydrocarbon solvents and just slightly soluble in water. Its solubility in glycols and their derivatives will aid in the dispersion of this material in paints and vinyl plastics. Table of Properties Composition ....... ..... ................................. Normal lead salicylate ) HO 0 OH O /Formula ...................... :.......................... .. C--O--Pb--O--C-i Molecular Weight .................. .... .............. 481 Soft crystalline powder Color ..... ...................... .............. ............-- Creamy white Refractive Index (average) .................. 1.78 Specific Gravity............. ..................... ..... 2.36 Weight per Gallon ---------1...................... 19.7 lb. Lead Oxide Content (% PbO) ..... ..... -- 46.0-46.5 Moisture (loss at 105C) ................ --... 0.5% max. Oil Absorption------------------- -------------- 35 g oil per 100 g Fineness (Retained on No. 325 sieve) -- 0.3% max. Solubility ________________ -------------- 0.5% soluble in water at 25C Soluble in glycols and glycol ethers. Slightly soluble in methyl and ethyl alcohol. Insoluble in com mon aromatic and aliphatic hydro carbons. Uses Paint--NORMASAL has the unique property of increasing the durability of drying oil films exposed to moisture, light, and heat--without impairing the dry ing of the films. Tests have shown that NORMASAL increases the gloss retention and retards the chalking rate of oil base paints. It markedly prolongs the color fastness of these paints. NORMASAL improves the performance of red lead prim ers in corrosion inhibitive paints, particularly on salt water exposure. Vinyl Plastics--NORMASAL imparts exceptional light fastness to many vinyl plastic formulations. NORMASAL should be used with a basic stabilizer, such as, "Dutch Boy" PLUMB-O-SIL, "Dutch Boy" TRIBASE, or "Dutch Boy" DS-207. Such combinations enable the formulator to stabilize his compound against both light and heat degradation. The basic material, which is an acid acceptor, and hence, a heat stabilizer, also serves to prevent degradation of the normal lead salicylate. The compatibility of NORMASAL with ethylene glycol, the glycol ethers, and other common vinyl plasticizers gives even dispersion and light protection throughout the vinyl compound. Its light color and low tinting strength permits NORMASAL to be used without increase in the amount of coloring pigment in vinyl formulations. Rubber--NORMASAL may be used as a combined activator and anti-scorch ing agent in rubber compounds. At processing and storage temperatures, it retards vulcanization, and at normal vulcanizing temperatures, it acts as an activator. Unlike other anti-scorching agents, NORMASAL has no harmful effects on the physical properties of the vulcanizates in which it is used. NORMASAL is of particular interest in natural rubber formulations. 'ZW gv PLUMB0S1L AN INORGANIC LO W- TINTING - POWER STABILIZER FOR PLASTICS ri "`DutcA PLUMB - O - SIL Plumb-O-Sil, a co-precipitated mixture of lead orthosilicate and silica gel, is a soft, white powder which serves as an excellent stabilizer for both vinyl chloride and vinylidene chloride polymers, particularly when it is desired to pro duce a clear plastic. Plumb-O-Sil can be tailored to fit the particular characteristics of the plastic being used. For example, Plumb-O-Sil A is produced with a refractive index of 1.64 to 1.67, making it an ideal stabilizer for use in vinylidene chloride plastics. Plumb-O-Sil B, refractive index 1.58 to 1.60, is designed for use with vinyl chloride-acetate plastics of approximately similar refractive index. Table of Properties ' PLUMB-O-SIL A Lead Content (%PbO) -------------Silica Content (%Si02) ________ Specific Gravity------------------------Refractive Index----------------------- 60 to 61 .39 to 40 4.1 1.67 PLUMB-O-SIL B Lead Content {% PbO) --------------------- 49 to 50 Silica Content (% Si02) 50 to 51 Specific Gravity-------------------------------- 3.3 Refractive Index1.58--1.60 When the vinyl or vinylidene plastic application requires a stabilizer without tinting strength and, therefore, without impairment to dye or other pigment ad ditions, Plumb-O-Sil A or B should be used. 01 979 t *DutC& A dibasic lead stearate that acts both as a lubricant and a stabilizer. PRODUCT DEVELOPMENT OF NATIONAL LEAD COMPANY N 24980.02 "`DutcJi `tBay DS 207 DIBASIC LEAD STEARATE DS207* the dibasic lead salt of stearic acid, is a soft, pure white, unctuous powder with all the apparent lubricity of normal lead stearate. DS207 is insoluble in water and in most of the common organic solvents. It reacts with warm turpentine forming a waxy compound with an approximate 5% solubility therein. This compound is in turn soluble in mineral spirits which sug gests its use as a protective coating for unpainted metal, the waterproofing of fabrics, etc. DS207 is soluble in some plasticizers. Its basic lead content, its low refractive index and its solubility in these plasticizers make it an excellent stabilizer for some types of clear vinyl plastics. It serves a two-fold purpose. It is both a stabilizer and lubricant. DS207 added to lubricating oil stocks produces excellent leaded greases. In this application its uniformity of both basicity and composition is an advantage. Table of Properties Composition ................................. ............Dibasic Lead Stearate Formula .............. ................. ............... 2PbO-Pb (C17H35COO), Color __ _______white Molecular Weight ....................................1220 Specific Gravity ______ _____-.......... ......2.02 Refractive Index _________ 1.60 Weight per Solid Gallon in Pounds........16.85 Lead Content (%Pb) ......... .......... ......51 Melting Point .... .....................................decomposes above 300C without melting Solubility .... .............................. ............. Insoluble in water, mineral spirits and linseed oil. 5% soluble in turpentine, soluble in tricresylphosphate and sev eral other plasticizers. Uses Stabilizer for Vinyl Plastics--DS207 has two-way utility when used in vinyl plastics. It is an excellent heat and light stabilizer. It has some degree of solubility in tricresylphosphate and several other plasticizers. Moreover, DS207 is very soluble in mixtures of either tricresylphosphate or dioctylphthalate and some of the aromatic petroleum type plasticizers. It produces clear amber films when the aromatic petroleum type plasticizer is used to the extent of 50% or more, or comprises the total plasticizer content. DS207 is also an effective lubricant--an excellent replacement for the lubricant commonly employed with vinyl com pounds to improve flow characteristics for molding, extruding and related proc esses. Is the Active Ingredient in Non-Permanent Films for the Protection of Steel--DS207 is approximately 5% soluble in turpentine. The solution finds use in the temporary protection of unpainted steel. It may be applied by spraying, brush ing or dipping. For Leaded Greases--DS207 makes superior leaded greases when mixed with lubricating oils. The greases are excellent protectives against corrosion due to the basic characteristics of the dibasic lead stearate. DS207 greases are uni form in composition which insures positive protection against wear of the machine parts to which they are applied. Cutting Oils--DS2Q7 has possibilities as a constituent of cutting oils. Other potential uses suggested by its composition are, as a drier in some types of paint, and as an additive to improve the brushing characteristics of oil paints. m. 'n i) c'*-v! . T>cctc A New Highly Basic Stabilizer A Product Development of NATIONAL LEAD COMPANY 'ZW TRI-MAL TRI-MAL, the monohydrated tribasic lead salt of maleic acid is a soft light yellowish green, crystalline powder. TRI-MAL is insoluble in water and all other common solvents. Its relatively high refractive index and good properties for heat and light stabilizing make it desirable for use in a number of organic products. TRI-MAL is the most basic lead light stabilizing material which can be pro duced. It has a total lead content equivalent to 89% PbO, and its available basic lead content is 66.5%. TRI-MAL is structurally designed to be a selective ultra violet light absorbing material. Thus its properties make it valuable in application as both a light and heat stabilizing pigment for several industries. Table of Properties Composition L 1----- ---------- -----Tribasic lead maleate monohydrate /O Formula HC--C--O--Pb--0--Pb. ----------------------1 >.H,0 HC--C--0--Pb--0--Pb' Molecular Weight1008 o Form -------- ----------------------- -------- --- ---Soft crystalline powder Color ----------------------------------- --- --------Yellowish green Refractive Index (average) ................... 2.08 Specific Gravity.................... .................... 6.0 Weight per Gallon_________ ___ _____ 50.0 lb Lead Oxide Content (% PbO) 88.5--89.0 Moisture (loss at 105C) .................. 0.10% max. Fineness (Retained on No. 325 sieve)... 0.5% max. Solubility______ ___ ______________ ___ Like most basic lead salts, TRI-MAL is insoluble in all common solvents. Uses Vinyl Plastics--TRI-MAL has a relatively high refractive index and, accord ingly, is desirable as a yellowish green pigmenting material in a wide variety of plastic formulations where stability to both light and heat is important. It imparts light fastness to the vinyl plastics in which it is used and its high degree of basicity makes it a fine heat stabilizer, as well. Suggested Uses--TRI-MAL might also be adapted to the stabilizing of chlorinated paraffins, chlorinated polythene and other chlorine containing plastics that are unstable to heat and light. NATIONAL LEAD COMPANY General Offices 111 Broadway, New York 6, N. Y. 116 Oak St., Buffalo 3; 900 West 18th St., Chicago 8; 639 Freeman Ave., Cincinnati 3; 1776 Columbus Rd., Cleveland 13; 2607 East Cumberland St., Philadelphia 25; 1376 River Ave., Pittsburgh 12; 722 Chestnut 3t_ St. Louis 1; 2240-24th St., San Francisco 10; National Lead Co. of Mass., 800 Albany St., Boston 6. ) / F