摘要:
A laminar structure consisting of a substrate and the structural adhesive consisting of:a linear alternating copolymer or interpolymer consisting of carbon monoxide and at least one ethylenically unsaturated hydrocarbon.
摘要:
A PRESSURE SENSITIVE ADHENSIVE PRODUCT IS PRODUCED BY CASTING ON A SUBSTRATE WEB, SUCH AS PAPER, PLASTIC FILM, OR METAL FOIL, A LAYER OF AN ADMIXTURE CONSISTING ESSENTIALLY OF: (A) A DIENE POLYMER HAVING AT LEAST 1.6 TERMINAL FUNCTIONAL GROUPS AND AN EQUIVALENT WEIGHT OF 500 OR MORE, (B) AN ORGANIC COREACTANT HAVING ABOUT 2 OR MORE COREACTIVE GROUPS, AND (C) AT LEAST 75 PARTS, PER 100 PARTS OF THE DIENE POLYMER AND THE ORGANIC COREACTANT, OF A TACKIFYING RESIN OR MIXTURE OF TACKIFYING RESINS HAVING A BALL AND RING SOFTENING POINT OF 60* TO 140* C. THAT HAS BEEN PREDISSOLVED IN THE DIENE POLYMER, AND COREACTING THE DIENE POLYMER AND THE ORGANIC COREACTANT IN SITUON THE SUBSTRATE WEB TO GIVE A PRESSURE SENSITIVE ADHESIVE PRODUCT. THE DIENE POLYMER AND THE ORGANIC COREACTANT, PLUS ANY OTHER INGREDIENTS, REACTIVE WITH THE DIENE POLYMER AND THE ORGANIC COREACTANT THAT ARE USED, ARE CHOSEN SO THAT THE PRESSURE SENSITIVE ADHESIVE POLYMER FORMED ON THE SUBSTRATE WEB HAS THE CHARACTER OF AN ELASTOMER.
摘要:
D R A W I N G PROCESS WHICH INVOLVES REACTING UNSATURATED DIESTER DIISOCYANATES AS EXEMPLIFIED BY BIS(2-ISOCYANATOETHYL) FUMARATE WITH ACTIVE HYDROGEN COMPOUNDS, E.G., POLYOLS, POLYAMINES, ETC. THE RESULTING PRODUCTS ARE USEFUL IN THE PREPARATION OF "BLOCKED" DIISOCYANATES, PREPOLYMERS, CAST AND THERMOPLASTIC POLYURETHANE RESINS, URETHANE FOAMS, REINFORCED PLASTIC PRODUCTS, ELASTIC FIBERS, AND OTHERS.
摘要:
"BLOCKED" POLYISOCYANATO-CONTAINING POLYMERS WHICH MAY BE OBTAINED VIA THE VINYL POLYMERIZATION OF UNSATURATED DIESTER DIISOCYANATES AS EXEMPLIFIED BY BIS(2-ISOCYANATOETHYL) FUMARATE WITH/WITHOUT ETHYLENICALLY UNSATURATED COMPOUNDS, E.G., STYRENE, VINYL ACETATE, ETC., FOLLOWED BY REACTING THE POLYISOCYANATO GROUPS OF THE RESULTING POLYMERS WITH A MONOFUNCTIONAL ACTIVE HYDROGEN COMPOUND. THE ABOVE REACTIONS MAY ALSO BE REVERSED TO THUS OBTAIN THE "BLOCKED" POLYMERS.
摘要:
A thermally vulcanizable pressure-sensitive adhesive comprising a chemically precrosslinked, pressure-sensitively adhesive polybutadiene-polyurethane and ground sulfur, which during the heating phase remains pressure-sensitively adhesive, does not liquefy and hence in this phase, in which the vulcanization has not yet started and the curing has not yet commenced, has shear strength at least under load to moderate low, is able to transmit forces and hence to perform holding, a process for producing it, an adhesive tape comprising this pressure-sensitive adhesive, and a process for producing the adhesive tape.