Process of making a biaxially stretched polyester film and biaxi

Details Process of making a biaxially stretched polyester film and biaxi Process of making a biaxially stretched polyester film and biaxi

1989-04-13

1991-01-15

Thurlow, Jeffery

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

Synthetic resins

From carboxylic acid or derivative thereof

2642358, 264342RE, 428910, 525437, 525444, 528298, 5283082, B29C 5512, C08G 6302

Patent

active

049855379

ABSTRACT:
A biaxially stretched polyester film which satisfies the following equations (1) to (4):

REFERENCES:
patent: 2779684 (1957-01-01), Alles
patent: 2928132 (1960-03-01), Richards, Jr.
patent: 2968067 (1961-01-01), Long
patent: 3875119 (1975-04-01), Aoki et al.
patent: 3903294 (1975-09-01), Abella
patent: 4275107 (1981-06-01), Bartkus et al.
patent: 4497865 (1985-02-01), Minami et al.
patent: 4677188 (1987-06-01), Utsumi et al.
English-Language Translation of Japanese Reference (Kokai) 62-134,244.

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