Monsanto Task Force
Chemicals..
WITH
Sodium
Santonox and Santonox R
Benzoate
ANTIOXIDANTS PROTECT POLYOLEFINS FROM HEAT DEGRADATION
KEEPS METAL PRODUCTS BRIGHT AND RUST-FREE
In Melt Index Test (above), samples milled 5 minutes and 30 minutes show how SANTONOX stabilizes polyethylene for more consistent performance. SANTONOX antioxidants stabilize low-, medium- and high-density polyethylene against 'degradation by processing heat and during product aging. They guard electrical compounds, film, molded products, cable covering, and extruded pipe made of rubber, polyethylene, polyisobutylene and other olefins. Most basic producers of polyethylene now add 0.02-0.05% to their finished compounds. "Polyethylene users frequently mill in an additional 0.05% to give even more heat and aging protection to their finished products. I n addition t o SANTONOX and SANTONOX R, other Monsanto antioxidants show great promise for stabilizing a variety of polyolefin resins. T o evaluate them, write Monsanto your requirements and the tvpe of resin.
Makers oF water-base paints and aqueous aerosols incorporate a few tenths percent of sodium benzoate to inhibit arusting of the containers. Toolmakers go a step further: some dip their steel products in a 5% solution odf sodium benzoate, thus putting a noncorroding anodic layer on the mental surface. Others wrap small tools in paper containing sodium beanzoate. Either the simple dip or the paper wrap keeps the metal free of rusting. Many plants that opera-fce calenders or large metal rolls mop a 5% solution of sodium benzoate over the equipment when shutting down; this keeps steel rolls, packaging machinery, or conveyor rolls free o f corrosion during down time. And when cutting oils can't be used irt machining materials like rigid plastics or hard rubber, sodium benzoate solutions frequently do the job, and with no rusting of valuable power equipment.
Santovar
WITHOUT
A
INHIBITS O X I D A T I O N O F UNCURED POLYMER FILMS, UNSATURATED RESINS A N D OILS
It is a good, practical stabilizer for oxidizable materials subject to toofast aging, and for quick-to-discolorand-stiffen (or turn sticky) polymers such as uncured natural and synthetic rubbers. For example, it keeps uncured nitrile latex binders soft and flexible in carpet backing and nonwoven fabrics. I t works equally well on unsaturated resins and oils. Nonstaining and non-discoloring, as little as 0.5-4.0% SANTOVAR A forestalls premature aging of adhesives and even thin-spread, permanent-tack backings such as the coatings for tapes, labels, and signs. It also reduces the cold flow of uncurevt. compositions »»>y imparting a stiffening effect, a valuable processing aid in coating applications.
1 Mission
today:
LONGER
MONSANTO CAN PUT A WHOLE TASK FORCE OF CHEMICAL "A6E IMPROVERS" AT YOUR COMMAND Today, Monsanto antioxidants, stabilizers, inhiÎDÎtors, preservatives and protectants give endurixig youth t o hundreds of products i n dozens of industries. Y o u may find t h e chemical "workings" of those materials shown here will help solve your problems of product aging—put your product years ahead 58
C&EN
JUNE
15.
1959
of others. Chances are, Monsanto h a s a highly satisfactory "age improver" for your product now. I t ' s easier than a literature search t o find out. Just j o t d o w n y o u r specific p r o b l e m a n d s e n d i t t o : Monsanto Chemical Company, T a s k Force Chemicals, "Age Improvers A," S t . L o u i s 66, M i s s o u r i .
l Aroclor 5460
Hydrogenated Bisphenol A
LENGTHENS THE KILL-LIFE OF VOLATILE A N D " W A S H - A W A Y " INSECTICIDES
MAKES POLYESTERS AGE SLOWER— RESIST CHEMICAL ATTACK LONGER
It imparts staying power to a vari ety of pesticides including D D T , heptachlor, Malathion, chlordane, aldrin and lindane. Example: under research conditions a sprayed-on mixture of 25% lindane, 25% ARO CLOR, and 50% solvent enabled the treated surface to kill houseflies for 102 d a y s . . . ten times longer than the same dosage without AROCLOR! On cockroaches, a lindane-AROCLOR mixture used at the rate of 50 mg. lindane per square foot, under exact ing experimental conditions, still registered an 80% kill after 60 days. Straight lindane solution, same rate, same conditions, scored only a 4 % kill. Soluble in a variety of solvents, i o w _ c o s t AROCLOR 5460 is easy to handle and formulate. It is relatively nonvolatile, nonflammable, nonoxidizable, and shows no primary skin irritancy or sensitization. For particular uses, such as insect traps or tapes, other AROCLOR bonding resins might be used.
It reacts with phthalic anhydride and propylene glycol to give finished polyesters as chemically resistant as much higher cost epoxies! HBP-A polyester resin/fiber glass laminates retain their strength in boiling 10% caustic, an extreme condition that dissolves ordinary polyesters away from the glass reinforcement. For binder resin applications, HBP-A can be formulated to make solid, uncross-linked resins with very high softening points. Substitution of HBP-A in no way affects normal cooking procedures; processing time is not iacreased; the finished resins possess higher heat distortion tem peratures and better light and heat stability- Try the new formulation with HBP-A when you are cooking polyester resins for use in reinforced plastic pipe, storage tanks, fume hoods, duct work or other products exposed to corrosive atmospheres.
Sopc)anox PREVENTS RANCIDITY A N D DIS COLORATION I N FATTY ACID SOAPS
In medium- and high-titer soaps, 0.04-0.05% SOPANOX based on the total soap weight prevents ran cidity and discoloration in sunlight. Even low-titer soaps are protected, although unstable triglycerides may require 0.10 % SOPANOX. I t pro tects spray dried beads, chips, cakes, flakes, powders or liquid soaps with out imparting odor or color. Most interesting—SOPANOX could im part the same protection wherever products containing fatty acids or metallic soaps are subject t o ran cidity or darkening. For example, synthetic rubber and latex made by emulsion polymerization with tallow soap might be more non-discoloring if SOPANOX were in the recipe. Write on your company letterhead for a trial sample.
I
PRODUCT LIFE • · For m o r e details, u s e h a n d y c o u p o n Please s e n d m o r e information a b o u t : Π
SANTONOX and SANTONOX R
Π
SODIUM BENZOATE
D
SANTOVAR A
Π
AROCLOR 5460
Π
HYDROGENATED BISPHENOL A
Π SOPANOX AROCLOR* SANTONOX.
MONSANTO CHEMICAL COMPANY Task Force Chemicals, "Age Improvers A" ST. LOUIS 66, MISSOURI
NameCompany-
SANTOVAR,
Address— CitySOPANOX:
-Sfafe_ZoneMonsanto T.M.'s Reg. U.S. Pat. Off.
JUNE
15, 1 9 5 9 C & E N
5 9
