摘要:
Adhesives useful for uniting the surfaces of various elements are provided comprising a substantially amorphous polyamide or poly(amide-imide) prepared by polymerization of at least one of bis(4-aminocyclohexyl)methane (PACM) or 2,2-bis(4aminocyclohexyl)propane (PACP) or methyl derivatives thereof with at least one polycarboxylic acid or a crystalline polymer of bis(4-aminocyclohexyl)methane (PACM) and azelaic acid. The polymeric compositions can be applied to surfaces as a hot melt adhesive or solvent cement.
摘要:
1. A MOLDING COMPOSITION COMPRISING: AT LEAST ONE RADIAL HOMOPOLYMER OF A CONJUGATED DIENE HAVING FROM 4 TO 12 CARBON ATOMS PER MOLECULE, AND HAVING A VINYL UNSATURATED CONTENT OF FROM 50 TO ABOUT 85 PERCENT; AT LEAST 50 PERCENT BY WEIGHT BASED ON THE TOTAL COMPOSITION OF A FILLER SELECTED FROM THE GROUP CONSISTING OF CALCIUM CARBONATE, CALCIUM SILICATE, QUARTZ, ASBESTOS, GLASS STRANDS, AND SILICA, A COUPLING AGENT, AND A PEROXIDE CURING AGENT.
摘要:
MERCAPTOALKANOIC ACIDS AND THIODIALKANOIC ACIDS ARE REACTED WITH A POLY8OXYALKYLENE)-POLYOL HAVING ON AVERAGE MORE THAN TWO PENDENT HYDROXY GROUPS PER MOLECULE TO FORM A POLY(OXYALKYLENE)-POLYESTER-POLY(MONOSULFIDE)POLYTHIOL HAVING AN AVERAGE MORE THAN TOW PENDENT THIOL GROUPS PER MOLECULE. THE POLY(OXYALKYLENE)-POLYESTERPOLY(MONOSULFIDE)-POLYTHIOL IS OXIDATIVELY COUPLED OR CURED, PREFERABLY IN A SEALANT FORMULATION, WITH AN OXIDATIVE COUPLING OR CURING AGENT, INCLUDING METALLIC OXIDES, PEROXIDE, SULFIR AND THE LIKE, TO FORM A COMPOSITION USEFUL AS A SEALLANT.
摘要:
A PRESSURE-SENSITIVE ADHESIVE SUITABLE FOR APPLICATION IN THE FORM OF A SOLUTION, DISPERSION, OR EMULSION IS PROVIDED WHICH COMPRISES, AS THE SOLE RUBBERY POLYMER PRESENT IN THE FORMULATION, A BRANCHED RUBBERY BLOCK COPOLYMER OF CONJUGATED DIENES AND VINYL AROMATIC HYDROCARBONS, HAVING TERMINAL RESINOUS BLOCKS, AND A CONJUGATED DIENE/VINYL AROMATIC HYDROCARBON RATIO RANGE OF FROM 60/40 TO 80/20.
摘要:
The adhesive characteristics of cured sealant formulations based on polysulfide polymers are substantially improved by the incorporation of glycidyl trialkyloxysilanes. The glycidyl trialkyloxysilanes provide an extremely high peel strength for coatings on various substrates, especially aluminum. The amount of curing agent required is reduced when glycidyl trialkyloxysilanes are used as adhesion-promoting additives.