Polytetramethyleneadipamide film

Details Polytetramethyleneadipamide film Polytetramethyleneadipamide film

1986-05-02

1987-10-13

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

2642884, C08G 6949

Patent

active

046999736

ABSTRACT:
A polyamide film prepared from a polyamide composition comprised of at least 60% by weight of polytetramethyleneadipamide or a copolymer polyamide containing at least 60% by weight of a polytetramethyleneadipamide component, said film being at least monoaxially stretched at a stretching ratio of at least 1.5, said film having a characteristic value .DELTA.T of from 30.degree. to 60.degree. C. as determined from the relationship:

REFERENCES:
patent: 3510552 (1970-05-01), Tsurata et al.
patent: 4252966 (1981-02-01), Matsuoka et al.
patent: 4370468 (1983-01-01), Nakajima et al.
patent: 4408036 (1983-10-01), Gaymans et al.
patent: 4446304 (1984-05-01), Gaymans et al.
patent: 4460762 (1984-07-01), Gaymans et al.
Telesystems Questel, Derwent No. 79-55 331B, Jun. 15, 1979.
Patent Abstracts of Japan, vol. 4, No. 95, Aug. 11, 1979, p. 117C 55.

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