Abstract: Amide compounds such as N-(phenyl)propenamide and N-(phenyl)-2-methylpropenamide are added to certain diene polymers such as SBR, NBR and natural rubber, preferably prior to compounding with reinforcing agents such as carbon black, thereby improving the hardening resistance of the subsequently sulfur vulcanized polymer.

Abstract: A phenolic antioxidant is combined with a sulfur-containing compound to form a larger antioxidant molecule. The resulting compounds are non-staining and prevent polymer degradation.

Abstract: A paintable rubber composition of SBR rubber and EPDM rubber, containing, as a stiffening agent, a high styrene resin of butadiene and styrene. This rubber composition can be used in molded and extruded products such as sight shields, automotive facia, fender liners and automotive door panels.

Abstract: An N-(aminothio)-phthalimide such as N-(morpholinothio)-phthalimide is reacted with a compound having the structure RSH or a metallic salt thereof, for example, benzene thiol, to produce a compound having the structure RSSNR.sup.1 R.sup.2, such as N-(phenyldithio)-morpholine. Compounds prepared according to this process are either accelerators or retarders.

Abstract: N-cyclohexyl-formamide is reacted with sulfur monochloride in the presence of an organic hydrogen chloride acceptor to form N,N'-di(cyclohexyl)-N,N'-dithiobis(formamide), which can then be reacted with sulfuryl chloride or chlorine to form N-chlorothio-N-cyclohexyl-formamide which can then be reacted with an olefin to form a retarder having the following structural formula.

Abstract: Phenolic antioxidants useful in the stabilization of oxidizable polymers such as polybutadiene, butadiene/styrene copolymers and polypropylene are prepared by reacting simple phenolic compounds with a pentacyclo-tetradeca-5,11-diene.

Abstract: Azidoformyl compounds containing a hindered phenolic antioxidant moiety have been found to provide built-in antioxidant protection. They add to and protect polymers, including saturated, unsaturated, linear, crystalline and non-linear-amorphous hydrocarbon polymers, copolymers, terpolymers, etc., including especially polyethylene, polypropylene, polystyrene, and the rubbers, such as natural rubbers, polybutadienes, polyisoprenes, butadiene-isoprene copolymer, butyl rubber, ethylene-propylene copolymer, ethylene-propylene-dicyclopentadiene terpolymer, etc. and blends thereof.

Abstract: This invention comprises an alkylation, reduction and transesterification process for the preparation of ester substituted phenols. The products are useful as antioxidants and may be prepared in high yields and with a high degree of purity.

Abstract: 3,5-Di-tert alkyl-4-hydroxybenzylpyridinium salts are reacted under basic conditions with compounds containing active methylene groups to form phenolic antioxidants. For example, 3,5-di-tert.butyl-4-hydroxybenzylpyridinium chloride is reacted with 2-nitropropane to produce 1,1-dimethyl-2-(3,5-di tert.butyl-4-hydroxyphenyl)-1-nitroethane.

Abstract: A decorative laminate material exhibiting stability to heat at temperatures used to bond such laminates to metal surfaces is prepared by bonding a calendered vinyl film to a vinyl plastisol.

Abstract: This invention concerns a method for the preparation of polyphenolic esters for use as built-in antioxidants.

Abstract: Phenolic antioxidants useful in the stabilization of oxidizable polymers such as polybutadiene, butadiene/styrene copolymers and polypropylene are prepared by reacting simple phenolic compounds with tricyclopentadiene.

Abstract: Antioxidants such as the reaction product of p-aminodiphenylamine and glycidyl methacrylate [3-N-(4'-anilinophenyl)amino-2-hydroxypropyl methacrylate], and the reaction product of n-hexyl-N'-phenyl-p-phenylenediamine and glycidyl methacrylate [3-[N-(4'-anilinophenyl)-N-(1,3-dimethylbutyl)]amino-2-hydroxypropyl methacrylate], age resistant polymers having monomeric age resistors physically combined therewith and oxidation resistant polymeric compositions prepared by free radical polymerization techniques involving the use of said antioxidants as monomers.

Abstract: A mixture of diaryl-p-phenylenediamines is added in solid form to a partially crystallized melt of N-1,3-dimethylbutyl,N'-phenyl-p-phenylenediamine, and the crystallization completed to form a free-flowing antiozonant blend. Other rubber additives can be substituted for the amine mixture.

Abstract: N,N'-bis(4-anilinophenyl)-4,7-dithia-5-methyldecanediamide and related antioxidants are used to offer protection to unvulcanized and vulcanized polymers. They are particularly effective in stabilizing vulcanized NBR when it is exposed to high temperature aging.

Abstract: Antioxidants such as 2-(3,5-di tert.butyl-4-hydroxybenzyloxy) ethyl acrylate and 2-(3,5-di tert.butyl-4-hydroxybenzyloxy) ethyl methacrylate, age resistant polymers having age resistors physically combined therewith and age resistant polymeric compositions prepared by emulsion free radical polymerization techniques involving the use of said age resistors as monomers.

Abstract: Ureas such as 1,3-bis(morpholinothio)-imidazolidinone are used to affect the vulcanization characteristics of sulfur vulcanizable polymers by increasing the state of vulcanization and improving scorch resistance and/or increasing the rate of vulcanization.

Abstract: Sheeting which is flexible and tear resistant, and optionally clear and transparent, is prepared from resins prepared by grafting PVC-type polymers with a combination of an acrylic ester such as methyl acrylate and an acrylic nitrile such as acrylonitrile.

Abstract: Polymers subject to oxidative degradation are stabilized by incorporating therein phosphite stabilizers such as the reaction product obtained by reacting a mixture of triphenylphosphite and 2,6-di-t-butyl-4-hydroxymethyl phenol or the reaction product obtained by reacting a mixture of triphenyl phosphite, 2,6-di-t-butyl phenol and paraformaldehyde.

Abstract: The viscosity of a high viscosity latex, compounded or uncompounded, is lowered by the addition of certain phenolic compounds such as 2,4,6-tris-(1,1-dimethylbutyl)-phenol.