Fabric prepreg by two distinct thermosetting matrixes

Details Fabric prepreg by two distinct thermosetting matrixes Fabric prepreg by two distinct thermosetting matrixes

2005-02-16

2010-02-16

Nordmeyer, Patricia L (Department: 1794)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

C428S041900, C428S343000, C428S354000, C428S3550RA, C428S3550EP, C442S205000

Reexamination Certificate

active

07662455

ABSTRACT:
The present invention relates to a preimpregnated main fabric (1′) provided with reinforcement (2) having a bottom face (F′) impregnated with a first thermosetting matrix (5) and a top face (F) impregnated with a second thermosetting matrix (6). The invention is remarkable in that the first and second thermosetting matrices (5, 6) have different physico-chemical and rheological properties.

REFERENCES:
patent: 2769742 (1956-11-01), Helbing
patent: 4855182 (1989-08-01), Ondrejas et al.
patent: 5508096 (1996-04-01), Van Skyhawk
patent: 2002/0079052 (2002-06-01), Zhou et al.
patent: 09087400 (1997-03-01), None
Database WPI Section Ch, Week 199629, Derwent Publications Ltd., London, GB; AN 1996-282071, XP002333838.

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