Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2007-06-05
2007-06-05
Hess, B. Hamilton (Department: 1774)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S212000, C428S423700, C428S482000, C428S500000
Reexamination Certificate
active
10601269
ABSTRACT:
A multilayer composite contains a gel coat layer, a laminate layer, and a barrier layer disposed between the gel coat and the laminate layer. The laminate contains from 40–80% by weight paste and from 20–60% by weight reinforcing fibers. The barrier coat also comprises a cured polyester resin, and contains reinforcing fibers shorter than those in the laminate layer. The barrier layer has sufficient flexibility to avoid cracking during demolding and handling. Preferably, the barrier layer exhibits an elongation at break of more than 1%, and more preferably about 2% or more. The resin of the barrier layer can contain up to about 25% by weight of the resin of an isophthalic acid based polyester resin. The composites can be made using an open tool molding process.
REFERENCES:
patent: 4029848 (1977-06-01), Nelson
patent: 4182830 (1980-01-01), Ford, Jr.
patent: 4244993 (1981-01-01), Platka, III et al.
patent: 4382055 (1983-05-01), Koyanagi et al.
patent: 4568603 (1986-02-01), Oldham
patent: 4587323 (1986-05-01), Toman
patent: 5087405 (1992-02-01), Maker
patent: 5159044 (1992-10-01), Bogner
patent: 5213747 (1993-05-01), Lippert
patent: 5534211 (1996-07-01), Smeal et al.
patent: 5562954 (1996-10-01), Harada et al.
patent: 5777053 (1998-07-01), McBain et al.
patent: 5830548 (1998-11-01), Andersen et al.
patent: 5871604 (1999-02-01), Hohman
patent: 6037385 (2000-03-01), Smith
patent: 6367406 (2002-04-01), Sahr et al.
patent: 3026316 (1982-02-01), None
patent: 0497721 (1992-08-01), None
patent: 1 162 049 (2001-12-01), None
patent: 1493547 (1977-11-01), None
patent: 63309428 (1988-12-01), None
patent: 03286850 (1991-12-01), None
patent: 04010925 (1992-01-01), None
patent: 04010931 (1992-01-01), None
patent: 04107143 (1992-04-01), None
patent: 06064053 (1994-03-01), None
patent: 06305038 (1994-11-01), None
patent: 07241916 (1995-09-01), None
patent: 07258542 (1995-09-01), None
patent: 2001-150559 (2001-05-01), None
patent: 200150559 (2001-05-01), None
patent: 405301295 (2003-11-01), None
patent: WO/85 05113 (1985-11-01), None
patent: WO 02/04730 (2002-01-01), None
Releavnt page from International Search Report from co-pening International Application Serial No. PCT/US03/22668.
Releavnt page from International Search Report from co-pening International Application Serial No. PCT/US03/22677.
Releavnt page from International Search Report from co-pening European Application Serial No. EP 03 01 6810.8.
“Microspheres”, Encyclopedia of Polymer Science & Engineerig, vol. 9, pp. 788-795.
Polyesters, Unsaturated, Encyclopedia of Polymer Science & Engineerig, vol. 12, pp. 256-275.
Buffa Mark A
Kia Hamid G
Mitchell Harry A
Wathen Terrence J
General Motors Corporation
Hess B. Hamilton
Marra Kathryn A.
Thompson Camie
LandOfFree
Barrier coat for open tool molding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Barrier coat for open tool molding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Barrier coat for open tool molding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3815533