Polymer Articles Made From a Blend of a Copolyester Elastomer and an Alpha-Olefin Vinyl Acetate Copolymer
First Claim
1. A polymer composition comprising:
- a thermoplastic polyester elastomer; and
an α
-olefin and vinyl acetate copolymer, the α
-olefin and vinyl acetate copolymer containing vinyl acetate in an amount from about 3 weight % to about 50 weight %, the weight ratio between the thermoplastic polyester elastomer and the α
-olefin and vinyl acetate copolymer being from about 20;
80 to about 80;
20.
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Accused Products
Abstract
A polymer composition is disclosed that contains a thermoplastic elastomer combined with an α-olefin and vinyl acetate copolymer. In one embodiment, the composition contains a thermoplastic polyester elastomer combined with an ethylene and vinyl acetate copolymer. Various synergistic effects may be realized by combining the two polymers together. In particular, a resulting polymer mixture can be produced that has many of the properties of the thermoplastic elastomer and also has controlled melt flow properties. In addition, the polymer composition may have improved and controllable mechanical and thermal properties and color stability. The polymer composition may be processed using injection molding, blow molding, or extrusion and may undergo secondary processing. According to the present disclosure, the polymer composition and molded part may exhibit certain advantages such as a light weight, improved thermal and chemical stability, specific strength, elastic recovery, cold temperature impact strength, and fatigue and kink resistance.
27 Citations
32 Claims
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1. A polymer composition comprising:
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a thermoplastic polyester elastomer; and an α
-olefin and vinyl acetate copolymer, the α
-olefin and vinyl acetate copolymer containing vinyl acetate in an amount from about 3 weight % to about 50 weight %, the weight ratio between the thermoplastic polyester elastomer and the α
-olefin and vinyl acetate copolymer being from about 20;
80 to about 80;
20. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A polymer article comprising a molded member made from a polymer composition comprising:
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a thermoplastic polyester elastomer; and an α
-olefin and vinyl acetate copolymer, the α
-olefin and vinyl acetate copolymer containing vinyl acetate in an amount from about 3 weight % to about 50 weight %, the weight ratio between the thermoplastic polyester elastomer and the α
-olefin and vinyl acetate copolymer being from about 20;
80 to about 80;
20. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification