Polymeric blends that adhere to polyester
OwnerPurushottam Das Agrawalinventor
Life of this patent
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Abstract
The invention relates to polymeric blends comprising from about 2 to about 30 percent by weight thermoplastic polyurethane elastomer; from about 55 to about 145 parts by weight copolyester per 100 parts by weight thermoplastic polyurethane elastomer; from about 400 to about 1,000 parts by weight ethylene vinyl acetate copolymer per 100 parts by weight thermoplastic polyurethane elastomer; from about 15 to about 85 parts by weight softening agent per 100 parts by weight thermoplastic polyurethane elastomer; and from about 15 to about 85 parts by weight compatibilizing agent per 100 parts by weight thermoplastic polyurethane elastomer. These blends exhibit high adhesion to polyesters.
Claims3
A polymeric blends comprising:
- from about 2 to about 30 percent by weight thermoplastic polyurethane elastomer;
- from about 55 to about 145 parts by weight copolyester per 100 parts by weight thermoplastic polyurethane elastomer;
- from about 400 to about 1,000 parts by weight ethylene vinyl acetate copolymer per 100 parts by weight thermoplastic polyurethane elastomer;
- from about 15 to about 85 parts by weight softening agent per 100 parts by weight thermoplastic polyurethane elastomer;
- and
- from about 15 to about 85 parts by weight compatibilizing agent per 100 parts by weight thermoplastic polyurethane elastomer.
A polymeric blend comprising:
- from about 6 to about 14 percent by weight thermoplastic polyurethane;
- from about 6 to about 14 percent by weight copolyester;
- from about 55 to about 85 percent by weight ethylene vinyl acetate copolymer;
- from about 2 to about 85 percent by weight styrene-isoprene-styrene block copolymer;
- and
- from about 2 to about 8 percent by weight maleic anhydride modified polypropylene.
A polymeric blend comprising:
- from about 6 to about 14 percent by weight thermoplastic polyurethane;
- from about 6 to about 14 percent by weight copolyester;
- from about 55 to about 85 percent by weight ethylene vinyl acetate copolymer;
- from about 2 to about 85 percent by weight styrene-isoprene-styrene block copolymer;
- and p1 from about 2 to about 8 percent by weight maleic anhydride modified EPDM.
Dependencies are inferred from the claim text.