Laminated polyester film for use as film with which metal plate

Details Laminated polyester film for use as film with which metal plate Laminated polyester film for use as film with which metal plate

1996-10-22

1999-03-23

Chen, Vivian

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428 358, 428213, 428215, 428216, 428323, 428458, 428480, 428910, 428339, B32B 2708, B32B 2720, B32B 2736

Patent

active

058856897

ABSTRACT:
A laminated polyester film for use as a film to be laminated on a metal plate, which comprises (A) a first layer formed of (a1) a first aromatic copolyester prepared in the presence of a germanium compound as a polymerization catalyst, which contains terephthalic acid as the main dicarboxylic acid component and ethylene glycol as the main glycol component and which has a melting point in the range of from 210.degree. to 245.degree. C. and a glass transition temperature of at least 60.degree. C., the first layer having (a2) a surface roughness (Ra) in the range of from 2 to 13 nm, and (B) a second layer formed of (b1) a polyester composition obtained by melt-mixing 90 to 45% by weight of a second aromatic copolyester which is composed, as a main recurring unit, of ethylene terephthalate, is produced in the presence of a germanium compound as a polymerization catalyst and has a melting point in the range of from 210.degree. to 252.degree. C. and 10 to 55% by weight of a third aromatic polyester which is composed, as a main recurring unit, of tetramethylene terephthalate and has a melting point in the range of from 180.degree. to 223.degree. C., the second layer having (b2) a surface roughness (Ra) of 15 to 50 nm; and (C) which exhibits excellent moldability when a metal plate laminated therewith is deep-drawn.

REFERENCES:
patent: 3884870 (1975-05-01), Dooson
patent: 4041206 (1977-08-01), Tsunashima et al.
patent: 4138386 (1979-02-01), Motegi et al.
patent: 4362775 (1982-12-01), Yabe et al.
patent: 4735835 (1988-04-01), Taira et al.
patent: 4798759 (1989-01-01), Dallman et al.
patent: 5292471 (1994-03-01), Ito et al.
patent: 5300335 (1994-04-01), Miyazawa et al.
patent: 5384354 (1995-01-01), Hasegawa et al.
patent: 5424121 (1995-06-01), Murakami et al.
Japanese Laid-Open Patent Publication No. 192,545 /1989 abstract.
Japanese Laid-Open Patent Publication No. 195,546 / 1989 abstract.
Japanese Laid-Open Patent Publication No. 22,530 / 1989 abstract.
Japanese Laid-Open Patent Publication No. 57,339 / 1990 abstract.
Japanese Laid-Open Patent Publication No. 78,953 / 1977 abstract.
Japanese Laid-Open Patent Publication No. 78/954 / 1977 abstract.
Japanese Laid-Open Patent Publication No. 71,154 / 1978 abstract.

Affiliated with

Also associated with

Rating

Laminated polyester film for use as film with which metal plate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laminated polyester film for use as film with which metal plate , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laminated polyester film for use as film with which metal plate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2123103