Polyester type block copolymer composition

Details Polyester type block copolymer composition Polyester type block copolymer composition

1985-08-01

1987-06-02

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 64, 525 92, 525174, C08L 6702, C08L 6704

Patent

active

046705104

ABSTRACT:
An improved polyester type block copolymer composition having a rubber-like elasticity, particularly having excellent moldability, which comprises a polyester type block copolymer produced from a crystalline aromatic polyester and a lactone in melt-admixture with a carboxylic acid compound selected from an ethylene-carboxylic acid copolymer and an aliphatic carboxylic acid metal salt.

REFERENCES:
patent: 3435093 (1969-03-01), Cope
patent: 3639527 (1972-02-01), Brinkman
patent: 3651014 (1972-02-01), Witsiepe
patent: 3761450 (1973-09-01), Herwig et al.
patent: 4010222 (1977-03-01), Shih
patent: 4031165 (1977-06-01), Saiki
patent: 4322335 (1982-03-01), Nield
patent: 4344874 (1982-08-01), Akagi
patent: 4401792 (1983-08-01), Axelrod
WPI World Patent Index, Gazette Index Japanese Patents, 40th week, 1973, Accession No. 73-58847U[40], JP 77-49037, (Abstract only).
WPI World Patent Index, Gazette Index Japanese Patents, 6th week, 1973, Accession No. 73-08009U[06], JP 73-4116.
WPI, World Patent Index, Gazette Index Japanese Patents, 6th week, 1973, Accession No. 73-08808U[06], JP 73-4115 (Abstract only).

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