ADHESIVE FOR FABRICATION OF FOAMS

• Main Authors: FUSEYA YOSHIRO, FUJII YASUHISA
• Format: Patent
• Language: English
• Published: 12.02.1987
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS AS ADHESIVES

PURPOSE:To obtain an adhesive for fabrication of foams having excellent heat resistance and adhesion to foams, by blending a vinyl copolymer having a particular composition with a pentaerythritol ester of polymerized rosin and an isocyanate compd. as a crosslinking agent. CONSTITUTION:A vinyl copolymer comprising 0.5-10wt% unsatd. monomer unit (A) (e.g., acrylic acid unit) and 0.2-5wt% hydroxyl group-contg. unsatd. monomer unit (B) (e.g., 2-hydroxyethyl acrylate) with the balance being an unsatd. monomer unit (C) copolymerizable with the components A and B (e.g., vinyl acetate or styrene) is prepared. 100pts.wt. vinyl copolymer is mixed with 2-50pts.wt. pentaerythritol ester of polymerized rosin and 0.2-3wt% isocyanate compd. as a crosslinking agent (e.g., tolylene diisocyanate) to obtain an intended adhesive for fabrication of foams.