Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-04-07
1994-08-30
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525489, 525502, 525524, 525525, 525526, 525527, 525528, 525530, 525532, 525533, 528 96, 528 97, 528 98, 528101, 528102, 528103, 528104, 528106, 528107, 528109, 528114, 528115, 528116, 528117, 528118, 528120, 528121, 528122, 528123, C08F28310, C08L 6100, C08L 6300, C08L 7900, C08L 8100
Patent
active
053429044
ABSTRACT:
Polymer modified adducts are prepared by (A) reacting (1) an epoxy resin having an average of more than one vicinal epoxide group with (2) a compound containing an average of two or more hydrogen atoms reactive with an epoxide group; and (B) partially vinylizing reacting the product from step (A); and (C) polymerizing the partially vinylized product from step (B) with (3) a polymerizable ethylenically unsaturated monomer; with the proviso that at least one of the components (1), (2) or (3) contain one or more mesogenic or rodlike moieties. These adducts are useful as epoxy resin curing agents.
REFERENCES:
patent: 3256226 (1966-06-01), Fekete
patent: 3586527 (1969-08-01), Aronoff
patent: 4950722 (1990-08-01), Parker
patent: 4962163 (1990-10-01), Hefner
Earls Jimmy D.
Hefner, Jr. Robert E.
Bleutge John C.
The Dow Chemical Company
Wilson Donald R.
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