Article coated with kured homogeneous thermoset resin/thermoplas

Details Article coated with kured homogeneous thermoset resin/thermoplas Article coated with kured homogeneous thermoset resin/thermoplas

1994-07-01

1995-04-11

Sellers, Robert E.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including interlaminar mechanical fastener

428245, 428260, 428290, 428412, 428417, 428418, 4284237, 4284242, 4284255, 4284258, 428458, 4284735, 4284752, 4284758, 428483, 428500, B32B 1508, B32B 1710, B32B, B32B 2712

Patent

active

054056861

ABSTRACT:
A woven or nonwoven web, or film (e.g. polyimide) or foil is coated with a homogeneous cured composition comprising a liquid mixture of thermosettable resin(s) such as a polyepoxide and curative(s) such as aromatic polyamines and particles of an amorphous thermoplastic polymer such as a polyetherimide. The particles have an average diameter of from 0.5-50 micrometers, a surface area of at least 1.0 m.sup.2 /g, a dissolution temperature of at least 50.degree. C., and are insoluble in the thermosettable resin at temperatures of up to 15.degree. C. below the dissolution temperature but are completely dissolved at a temperature of at least 20.degree. C. below the cure temperature of the resin.

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Chemical Patents Index, Basic Abstracts Journal, Section Ch, Week 8806, 6 Apr. 1988 (Derwent Publications Ltd., London, GB; Class An AN 88-039225(06) and JP-A-62 297 316 (Toray Ind.Inc.) 24 Dec. 1987.
Blair et al., 33rd Int'l SAMPE Symposium, Mar. 7-10, 1988, "The Toughening Effects of PBI in a BMI Matrix Resin".

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