Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ethylenically unsaturated reactant admixed with either...
Reexamination Certificate
2008-09-01
2011-11-08
Lipman, Bernard (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Ethylenically unsaturated reactant admixed with either...
C525S440030, C525S454000, C525S455000, C264S240000, C264S328800
Reexamination Certificate
active
08053518
ABSTRACT:
This invention relates to a polyester urethane hybrid resin casting resin composition which comprises a mixture ABCD of an unsaturated polyester ABC which has moieties derived from at least one alcohol A, moieties derived from a mixture B of carboxylic acids, wherein at least 10% of the mass of at least one of the said carboxylic acids B or of the said alcohols A have at least one olefinic unsaturation in their molecules, and moieties derived from a monoepoxide C having at least four carbon atoms, which polyester ABC is dissolved in a compound D, and which has at least one olefinic unsaturation and which is radically copolymerizable with the unsaturated polyester oligomer ABC and a second liquid component EF comprising a polyfunctional isocyanate E and a radical initiator F, a process for its production, and a method of use thereof to form large moulded parts.
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International Search Report of PCT/EP2008/061468, Dec. 2008.
Written Opinion of PCT/EP2008/061468, Dec. 2008.
Fröhlich Gerd
Urbano Edmund
Bell Charles E.
Cytec Austria GmbH
Lipman Bernard
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