Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2003-01-09
2009-08-11
Gulakowski, Randy (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C428S035800
Reexamination Certificate
active
07572865
ABSTRACT:
The present invention is a polyester film obtained by blending 10-90 wt % of polyester (A) containing ethylene terephthalate as a main constituent component and 90-10 wt % of crystalline polyester (B) different from this polyester (A), which has a half value width of a recrystallization peak obtained by a differential scanning calorimeter (DSC) by lowering temperature of not more than 0.25. The crystalline polyester (B) is preferably a polyester selected from polybutylene terephthalate (PBT), polytrimethylene terephthalate (PTT) and polyethylene 2,6 naphthalate (PEN). According to the polyester of the present invention, a polyester film superior in mechanical characteristic and design property and having high crystallinity, which can be used alone or adhered to a metal sheet and which is free of whitening even when the film is heat treated at near or not lower than the melting point can be obtained, and further, a polyester film having such superior resistance to whitening (design property), which is not easily damaged, can be obtained.
REFERENCES:
patent: 4774114 (1988-09-01), Moritani et al.
patent: 5153302 (1992-10-01), Masuda et al.
patent: 6780482 (2004-08-01), Majima et al.
patent: 5-331302 (1993-12-01), None
patent: 7-145252 (1995-06-01), None
patent: 8-3430 (1996-01-01), None
patent: 8-120068 (1996-05-01), None
patent: 9-143349 (1997-06-01), None
patent: 10-110046 (1998-04-01), None
patent: 10-195210 (1998-07-01), None
patent: 2001-335682 (2001-12-01), None
patent: 2002-69277 (2002-03-01), None
patent: 2002-179892 (2002-06-01), None
patent: 2002-275273 (2002-09-01), None
patent: 2002-321277 (2002-11-01), None
patent: 2003-26824 (2003-01-01), None
patent: 00/09593 (2000-02-01), None
patent: WO 0192417 (2001-12-01), None
Fujita Shinji
Higashiura Shinya
Itoh Katsuya
Kotani Toru
Gulakowski Randy
Toscano Alicia M
Toyo Boseki Kabushiki Kaisha
Westerman, Hattori, Daniels & Adrian , LLP.
LandOfFree
Polyester films does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyester films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyester films will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4140333