Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1988-06-21
1989-08-08
Short, Patricia
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 28, 525451, 525455, 525502, 525528, 525531, L08L 6310
Patent
active
048553689
ABSTRACT:
Thermoset resinous molding compositions are provided by essentially instantaneously combining and reacting three basic resin forming components. The latter include an oligomeric ester or polyester containing polymerizable unsaturation and free hydroxyl group(s); a polyisocyanate; and an aromatic polyamine. The indicated thermosetting resin systems are especially adapted for use in a reaction injection molding (RIM) operation.
REFERENCES:
patent: 3373221 (1968-03-01), May
patent: 4107101 (1978-08-01), Kubens
patent: 4296020 (1981-10-01), Magrans
patent: 4317894 (1982-03-01), Lewarchik
patent: 4334034 (1982-06-01), Lehner
patent: 4374229 (1983-02-01), Dunnavant
Borgnaes Dan
Culbertson Billy M.
Tufts Timothy A.
Wilkinson Theodore C.
Ashland Oil Inc.
Hanegan Herbert M.
Jones John F.
Short Patricia
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