Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-03-27
1993-12-14
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...
528205, 528219, 528 96, C08F28310
Patent
active
052704033
ABSTRACT:
An epoxy resin hardener includes a synthetic resin obtained by the addition reaction of (A) an aromatic hydrocarbon containing a phenolic hydroxyl group with (B) a compound having at least two ethylenically unsaturated double bonds, the synthetic resin having a structure in which the ethylenically unsaturated double bonds in compound (B) have been opened, with a hydrogen atom that was directly bonded to one of the carbon atoms constituting the aromatic ring(s) in hydrocarbon (A) being addition-bonded to the .alpha.-position carbon atom in one of the opened double bonds in compound (B) and the .beta.-position carbon atom in the opened double bond in compound (B) being addition-bonded to that carbon atom in the aromatic ring(s) in hydrocarbon (A) from which the hydrogen atom addition-bonded to the .alpha.-position carbon atom in the opened double bond in compound (B) has been eliminated. An epoxy resin composition containing an epoxy resin and the hardener is also disclosed.
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Bleutge John C.
Dainippon Ink and Chemicals Inc.
Gulakowski Randy
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