Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ethylenically unsaturated reactant admixed with a preformed...
Patent
1990-01-03
1991-06-25
Short, Patricia
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ethylenically unsaturated reactant admixed with a preformed...
525 44, 525 48, 525 74, C08L 6708
Patent
active
050267701
ABSTRACT:
The invention relates to a resin composition comprising a mixture of resins, a first resin of which consists of the reaction product of an epoxidized fatty acid ester of a polyvalent alcohol with a carboxylic acid and a second resin consists of an ester of a polyvalent alcohol, modified with carboxylic acid.
The resin mixture, contains an unsaturated polyester resin having a molecular weight of 1200-20,000 per double bond and an acid number of 5-50, from about 50% to about 90% of the unsaturation being formed by a semi-ester of an .alpha.,.beta.-unsaturated dicarboxylic acid.
Kraanen Willem P. M.
Paas Caspar G. M.
Smeets Paulus J. H. M.
Short Patricia
Stamicarbon B.V.
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