Abstract:
COMPOSITIONS OF MONTHS-LONG CATALYZED POT LIFE AT ROOM TEMPERATURE AND HENCE ESPECIALLY SUITABLE FOR COATING LARGE OBJECTS SUCH AS HIGH VOLTAGE COILS, ARE MADE BY MIXING (A) THE PRODUCT OF THE UNCATALYZED HALF-ESTERIFICATION OF EPOXY RESIN WITH AN OLEFINICALLY UNSATURATED DICARBOXYLIC ACID ANHYDRIDE (E.G., MALEIC ANHYDRIED), (B) A COREACTIVE VINYL MONOMER (E.G., STYRENE), (C) A POLYCARBOXYLIC ANHYDRIDE
CONTAINING NO OLEFINIC UNSATURATION (E.G., NADIC METHYL ANHYDRIDE (NMA) VISCOUS LIQUID METHYL BICYCLO (2.2.1) HEPTENE-2,3-DICARBOXLIC ANHYDRIDE ISOMERS) AND (D) POLYMERIZATION CATALYSTS AND INHIBITORS. THE LARGE OBJECTS ARE IMPREGNATED WITH LIQUID LOW VISCOSITY COMPOSITIONS. UPON HEATING, THE COMPOSITION CURES TO A THERMOSET RESIN.
Abstract:
A METHOD OF MAKING A SYNTHETIC ORGANIC RESIN IMPREGNATED WOOD MEMBER WHEREIN THE WOOD IS PRETREATED WITH AN ACTIVATOR, SUCH AS DIMETHYL ANILINE, IN THE VAPOR PHASE. A SYNTHETIC ORGANIC LIQUID RESINOUS COMPOSITION CONTAINING, FOR EXAMPLE. STYRENE AND AN UNSATURATED POLYESTER CATALYZED WITH BENZOYL PEROXIDE IS THEN IMPREGNATED INTO THE WOOD AT ABOUT ROOM TEMPERATURE CAUSING THE RESIN TO POLYMERIZE WITHIN THE WOOD.
Abstract:
COMPOSITIONS OF MONTHS-LONG CATALYZED POT LIFE AT ROOM TEMPERATURE AND HENCE ESPECIALLY SUITABLE FOR COATING LARGE OBJECTS, ARE MADE BY MIXING (A) THE PRODUCT OF THE UNCATALYZED HALF-ESTERIFICATION OF EPOXY RESIN WITH AN OLEFINICALLY UNSATURATED DICARBOXYLIC ACID ANHYDRIDE (E.G., MALEIC ANHYDRIDE), (B) A COREACTIVE VINYL MONOMER (E.G., STYRENE), (C) A POLYCARBOXYLIC ANHYDRIDE CONTAINING NO OLEIFINIC UNSATURATION (E.G., NADIC METHYL ANHYDRIDE (NMA), VISCOUS LIQUID METHYLBICYLCLO (2.2.1)HEPTENE-2,3DICARBOXYLIC ANHYDRIDE ISOMERS) AND (D) POLYMERIZATION CATALYSTS AND INHIBITORS. UPON HEATING, THE COMPOSITION CURES TO A THERMOSET RESIN. THE BASIC COMPOSITION IS MODIFIED WITH FILLERS AND ADDITIVES FOR USE AS POTTING COMPOUNDS, ENCAPSULANTS, CASTINGS, LAMINATE ADHESIVES, ETC.