UNSATURATED POLYESTER RESIN COMPOSITION FOR EXPLOSIONPROOF TREATMENT OF CATHODE RAY TUBE

• Main Authors: FUJII TADASHI, IZUMI HIROFUMI, TANAKA KAZUYUKI, IWAMI ETSUJI
• Format: Patent
• Language: English
• Published: 04.03.1986
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PURPOSE:The titled composition having a low viscosity, excellent transparency and adhesive force and free of curing strain, prepared by dissolving a specified unsaturated polyester in styrene (derivative) and unsaturated dibasic acid mono- and/or di-esters. CONSTITUTION:An unsaturated polyester (A) of a MW of 500-8,000 per mol of unsaturated groups, obtained by reacting an acid component containing an unsaturated dibasic acid (anhydride), e.g., fumaric acid, and, optionally, other polybasic acids (e.g., adipic acid) with an alcohol component (e.g., diethylene glycol) is dissolved in a mixture of (B) styrene (derivative) and (C) unsaturated dibasic acid mono- and/or di-esters (e.g., dimethyl fumarate) in such amounts that the ratio of the number of moles of unsaturated group of component B to that of unsaturated groups of component A + that of unsaturated groups of component C may fall within the range of 1/10-10/1.