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US 5,478,878 AGranted
Thermoplastic composition
AssigneeSumitomo Chemical Company, Limited
InventorsKenji Nagaoka, Hiroshi Hagimori, Yasuro Suzuki, Takashi Sanada
Life of this patent
Estimating the term…
Abstract
There is provided a polymer composition having improved discoloration resistance upon exposure to light comprising a polyphenylene ether, a polyamide, and a combination of (a), a inorganic filler selected from the group consisting of titanium oxide, zinc oxide, zinc sulfide, aluminum oxide, magnesium oxide, titanium oxide coated mica, and metal particles, and (b), an organic dye or pigment which bleaches upon exposure to light, in an amount effective to improve the discoloration resistance.
Claims16
A polymer composition which comprises
- (A) a polymer composition consisting of
- (a) at least one polyphenylene ether and,
- (b) optionally a styrene resin and,
- (c) at least one polyamide and,
- (d) optionally one or more impact strength improving polymers and,
- (e) one or more agents to improve the compatibility of the polyphenylene ether and the polyamide, and
- (B) a combination of
- (a) at least one inorganic filler selected from the group consisting of titanium oxide, zinc oxide, zinc sulfide, aluminum oxide, magnesium oxide, titanium oxide coated mica, and metal particles and,
- (b) at least one organic dye or pigment selected from the group consisting of Solvent Yellow 44, Solvent Green 5, Pigment Yellow 83, and Solvent Yellow 105, which bleaches upon exposure to light, in an amount of from about 0.001 to about 5 parts based on 100 parts by weight of the polymer composition (A), wherein a polymer segment comprising the components (a) and (c), which is insoluble in chloroform and 2,2,2-trifluoroethanol, is present in an amount greater than about 5 percent by weight based on the total weight of components (a), (c) and (d) in the polymer composition.
6 more elements
A polymer composition which comprises
- (A) a polymer composition consisting of
- (a) at least one polyphenylene ether and,
- (b) optionally a styrene resin and,
- (c) at least one polyamide is present in an amount sufficient to constitute a continuous phase in the polymer composition and,
- (d) optionally one or more impact strength improving polymers and,
- (e) one or more agents to improve the compatibility of the polyphenylene ether and the polyamide, and
- (B) a combination of
- (a) at least one inorganic filler selected from the group consisting of titanium oxide, zinc oxide, zinc sulfide, aluminum oxide, magnesium oxide, titanium oxide coated mica, and metal particles and,
- (b) at least one organic dye or pigment selected from the group consisting of Solvent Yellow 44, Solvent Green 5, Pigment Yellow 83, and Solvent Yellow 105, which bleaches upon exposure to light,
- in an amount of from about 0.001 to about 5 parts based on 100 parts by weight of the polymer composition (A), wherein a polymer segment comprising the components (a) and (c), which is insoluble in chloroform and 2,2,2-trifluoroethanol, is present in an amount greater than about 5 percent by weight based on the total weight of components (a), (c) and (d) in the polymer composition.
7 more elements
A polymer composition which consists essentially of
- (A) a polymer composition consisting of
- (a) at least one polyphenylene ether and,
- (b) optionally a styrene resin and,
- (c) at least one polyamide and,
- (d) optionally one or more impact strength improving polymers and,
- (e) one or more agents to improve the compatibility of the polyphenylene ether and the polyamide, and
- (B) a combination of
- (a) at least one inorganic filler selected from the group consisting of titanium oxide, zinc oxide, zinc sulfide, aluminum oxide, magnesium oxide, titanium oxide coated mica, and metal particles and,
- (b) at least one organic dye or pigment selected from the group consisting of Solvent Yellow 44, Solvent Green 5, Pigment Yellow 83, and Solvent Yellow 105, which bleaches upon exposure to light,
- in an amount of from about 0.001 to about 5 parts based on 100 parts by weight of the polymer composition (A), wherein a polymer segment comprised of the components (a) and (c), which is insoluble in chloroform and 2,2,2-trifluoroethanol, is present in an amount greater than about 5 percent by weight based on the total weight of components (a), (c) and (d) in the polymer composition.
7 more elements
Dependencies are inferred from the claim text.