Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-06-28
1994-11-29
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 27, 528 97, 525482, 525524, C08G 5950
Patent
active
053691920
ABSTRACT:
The invention relates to a resin transfer molding preform binder resin that comprises at least one aromatic polyepoxide, a fluorene epoxide that is different than the aromatic polyepoxide and having a defined structure, and a 9,9-bis(aminophenyl)fluorene curing agent. The binder resin is a solid, room temperature stable, essentially nonsintering powder that displays a glass transition temperature greater than about 40.degree. C. Also disclosed are preforms made with the binder resin and a method for preparing the preforms.
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Hackett Steven C.
Ko Chan U.
Griswold Gary L.
Kirn Walter N.
Krass Frederick
Minnesota Mining and Manufacturing Company
Skolnick Steven E.
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