The Dow Chemical Company

Gkn Westland Aerospace, Inc.

Brenda Thies Colegrove

Jimmy D Earls

Warren D White

Bruce L Burton

Johnny P Gendreau

Curt Goodwyn Wilkinson

Larry N Varholak

A compound of the formula: ##STR1## wherein Ar.sup.1 is the backbone of any aromatic diamine moiety other than 3,4'-oxydianiline and W independently in each occurrence is a bond or a radical selected from the group consisting of: ##STR2##

Resins containing phenylethynl-terminated compounds

A preform suitable for use in a resin transfer molding process comprising (1) one or more layers of a non-woven random mat and (2) one or more layers of a series of tows of unidirectional fibers held together by a polymeric curable resin film grid. The polymeric resin film is in the form of a grid, such that only a fraction of the surface area of the fibers contacts the resin film.

Unidirectional fiber-random mat preform

Growing community of inventors

Lake Jackson, TX, United States of America

Brenda Thies Colegrove