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US 6,191,197 B1Granted
Extended polymer compostion derived from blends of elastomers and syndiotactic polystyrene
AssigneeBridgestone Corporation
InventorsXiaorong Wang, Xiao-Liang Luo, Frank J. Clark, Hideo Takeichi, James E. Hall, Takahiro Matsuse, Naruhiko Mashita, Shinichi Toyosawa
Life of this patent
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Abstract
There are disclosed a gel or polymer composition which comprises 100 parts by weight of a polymer blend component comprising 1 to 90% by weight of a poly(vinyl aromatic hydrocarbon) polymer having a syndiotactic configuration and 99 to 10% by weight of a rubbery elastomer and at least 30 parts by weight of an extender oil or a low molecular weight organic component. These gel compositions have super soft properties, heat resistance, and/or damping properties.
Claims28
An extended polymer composition comprising:
- 100 parts by weight of a polymer blend component comprising 5 to 50% by weight of a poly(vinyl aromatic hydrocarbon) polymer having a syndiotactic configuration and 95 to 50% by weight of an elastomeric polymer;
- and
- at least 30 parts by weight of an extender comprising an extender oil, blended sufficiently to form a polymer gel;
- said composition having a Shore A hardness ranging from about 0 to about 50 at about 20° C. to 25° C.
1 more element
A flexible, molded thermoplastic elastomer article comprising:
- 100 parts by weight of a polymer blend component comprising 5 to 50% by weight of a poly(vinyl aromatic hydrocarbon) polymer having syndiotactic configuration and 95 to 50% by weight of an elastomeric polymer;
- and
- at least 30 parts by weight of an extender comprising extender oil blended sufflciently to form a polymer gel;
- said composition having a Shore A hardness ranging from about 0 to about 50 at about 20° C. to 25° C.
1 more element
An extended polymer composition comprising:
- 100 parts by weight of a polymer blend component comprising 5 to 50% by weight of a poly(vinyl aromatic hydrocarbon) polymer having a syndiotactic configuration and 95 to 50% by weight of an elastomeric polymer;
- and
- at least 30 parts by weight of an extender comprising an organic material having a number-average molecular weight of loss than 20,000, blended sufficiently to form a polymer gel, the organic material being selected from the group consisting of:
- (1) softening agents, selected from the group consisting of aromatic naphthenic and paraffinic softening agents;
- (2) plasticizers, selected from the group consisting of phthalic esters, mixed phthallc esters, aliphatic dibasic add esters, fatty acid esters, phosphoric acid esters, epoxy plasticizers, and phthalate, adipate, sebacate, and phosphate polyether and polyester plasticizers;
- (3) tackifiers, selected from the group consisting of coumarone resins, cournarone-indene resins, terpene phenol resins, and rosin derivatives;
- (4) oligomers, selected from the group consisting of crown ether, fluorine-containing oligomers, polybutenes, xylene resins, chlorinated rubber, polyethylene wax, polyalkylene glycol diacrylate, liquid rubbers, silicone oligomers, and poly-α-olefins;
- (5) lubricants, selected from the group consisting of hydrocarbon lubricants selected from paraffin, wax, higher fatty acids, hydroxy-fatty acids, fatty acid amides, alkylene-bis-fatty acid amides, fatty acid-lower alcohol esters, fatty acid-polyhydric alcohol esters, fatty acid-polyglycol esters, fatty alcohols, polyhydric alcohols, polyglycol, polyglycerol, and metallic soaps;
- (6) petroleum hydrocarbons, selected from the group consisting of synthetic terpene resins, aromatic hydrocarbon resins, aliphatic hydrocarbon resins, aliphatic cyclic hydrocarbon resins, alicyclic petroleum resins, aliphatic petroleum resins, aromatic petroleum resins, polymers of unsaturated hydrocarbons, and hydrogenated hydrocarbon resins;
- and
- (7) bituminous compositions and phosphazenes;
- and combinations thereof;
- said composition having a Shore A hardness ranging from about 0 to about 50 at about 20° C. to 25° C.
10 more elements
A flexible, molded thermoplastic elastomer article comprising:
- 100 parts by weight of a polymer blend component comprising 5 to 50% by weight of a poly(vinyl aromatic hydrocarbon) polymer having syndiotactic configuration and 95 to 50% by weight of an elastomeric polymer;
- and
- at least 30 parts by weight of an extender comprising an organic material having a number-average molecular weight of less than 20,000, blended sufficiently to form a polymer gel, the organic material being selected from the group consisting of:
- (1) softening agents, selected from the group consisting of aromatic naphthenic and paraffinic softening agents;
- (2) plasticizers, selected from the group consisting of phthalic esters, mixed phthallc esters, aliphatic dibasic acid esters, fatty acid esters, phosphoric acid esters, epoxy plasticizers, and phthalate, adipate, sebacate, and phosphate polyether and polyester plasticizers;
- (3) tackifiers, selected from the group consisting of coumarone resins, coumarone-indene resins, terpene phenol resins, and rosin derivatives;
- (4) oligomers, selected from the group consisting of crown ether, fluorine-containing oligomers, polybutenes, xylene resins, chlorinated rubber, polyethylene wax, polyalkylene glycol diacrylate, liquid rubbers, silicone oligomers, and poly-α-olefins;
- (5) lubricants, selected from the group consisting of hydrocarbon lubricants selected from paraffin, wax, higher fatty acids, hydroxy-fatty acids, fatty acid amides, alkylene-bis-fatty acid amides, fatty acid-lower alcohol esters, fatty acid-polyhydric alcohol esters, fatty acid-polyglycol esters, fatty alcohols, polyhydric alcohols, polyglycol, polyglycerol, and metallic soaps;
- (6) petroleum hydrocarbons, selected from the group consisting of synthetic terpene resins, aromatic hydrocarbon resins, aliphatic hydrocarbon resins, aliphatic cyclic hydrocarbon resins, alicyclic petroleum resins, aliphatic petroleum resins, aromatic petroleum resins, polymers of unsaturated hydrocarbons, and hydrogenated hydrocarbon resins;
- and
- (7) bituminous compositions and phosphazenes;
- and combinations thereof;
- said composition having a Shore A hardness ranging from about 0 to about 50 at about 20° C. to 25° C.
10 more elements
Dependencies are inferred from the claim text.