Hoechst Celanese Corporation

Gaf Corporation

Other

Ticona Gmbh

Michael D Golder

David K Walker

Stanley J Gromelski, Jr

Mengshi Lu

Bruce M Mulholland

Paul DeStio

Stanley J Gromelski

Suzanne Nelsen

William M Bernat

Stabilized resin compositions

An acrylic modifier composition for improving impact resistance of polyester compositions is provided which comprises (a) between about 10% to about 90% by weight of a first component selected from the group consisting of an ethylene alkyl acrylate co-polymer and ethylene alkyl methacrylate copolymer, wherein the alkyl is C1 to C10; and (b) between about 10% to about 90% by weight of a second component selected from the terpolymer group consisting of ethylene/alkylacrylate/ glycidyl methacrylate; ethylene/alkyl acrylate/glycidyl acrylate; ethylene/alkyl methacrylate/glycidyl acrylate; and ethylene/alkyl methacrylate/glycidyl methacrylate, wherein the alkyl is C1 to C10. Polyester compositions toughened by addition of the modifier composition are disclosed, as are articles molded from these compositions and processes for forming these polyester compositions.

Method and compositions for toughening polyester resins

Elastomeric compositions

Molding compositions having improved flexibility are made from blends of segmented copolyester elastomers and copolymers of ethylene and ethyl acrylate.

Elastomer compositions made from blends of copolyester elastomers and

Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific diamide compound.

Stabilized talc-filled polyester compositions

Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific phosphorous compound.

Talc filled thermoplastic polyester compositions which have been modified by the addition of a butadiene-based impact modifier are stabilized against degradation by the addition thereto of a specific diphenylamine compound.

Polyester molding compositions include an effective amount of a triazine-based antioxidant and a benzophenone ultraviolet light absorber sufficient to achieve a clor difference, as calculated in CIELab units under illuminant 'D-65' according to ASTM Standard D-2244, of less than about 10,0, when exposed in a Xenon arc weather-ometer operated according to SAE J1885 for 315 Kj/sq.m. The triazine-based antioxidant is of the formula: ##STR1## wherein R is a phenolic group attached to the triazine ring via a C1 to C5 alkyl or an ester substituent. Preferably, the triazine-based antioxidant is 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid triester with 1,3,5-tris-(2-hydroxyethyl)-s-triazine-2,4,6-(1H, 3H, 5H) trione. The benzophenone UV-absorber is of the general formula: ##STR2## where R' is hydrogen or an alkyl radical.

UV-light stabilized polyester molding compositions

Elastomeric compositions having resistance to hot grease aging are made from a blend of a thermoplastic copolyester elastomer, and chorinated polyethylene with or without the addition of a carbodiimide and a guanidine.

Blends copolyester elastomers and chlorinated polyethylene

Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain polyvinylpyrrolidone and preferably also contain guanidine stabilizer, phosphorus stabilizer and diphenylamine.

Thermoplastic elastomer

Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain polyvinylpyrrolidone and preferably also contain small amounts of guanidine stabilizer, phosphorus stabilizer and diphenylamine.

Stabilized thermoplastic elastomer compositions

Stabilized thermoplastic elastomer

Segmented thermoplastic copolyester elastomers containing recurring polymeric long chain ester units derived from phthalic acids and long chain glycols and short chain ester units derived from phthalic acids and 1,4-butanediol or 1,4-butenediol. The elastomers also contain small amounts of a quanidine stabilizer and small amounts of phosphorus stabilizer and diphenylamine.

Growing community of inventors

Allendale, NJ, United States of America

Michael D Golder