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.
摘要:
This invention presents metallic soaps which are useful for promoting tack-free surfaces and for curing polymercaptan sealants with quick formation of a protective skin on the polymercaptan sealant. Metallic soaps in combination with calcium peroxide are useful for promoting tack-free surfaces and for curing polymercaptan sealants with quick formation of a protective skin on the polymercaptan sealant.
摘要:
THERE ARE PROVIDED STABILIZED COMPOSITIONS CONSISTING OF A MAJOR PROPORTION OF A THERMOPLASTIC RESIN HAVING A POLYPHENYLENE ETHER COMPONENT AND A MINOR PROPORTION OF A STABILIZER CONSISTING OF A COMPOUND CONTAINING AT LEAST ONE P-N BOND, COMBINED WITH AN ALKANOLAMINE OR A MIXTURE THEREOF WITH A BORON COMPOUND. THE BORON COMPOUND CAN INCLUDE, CARBON AND HYDROGEN, IN ADDITION TO OXYGEN.
摘要:
DISCLOSED ARE TEXTILE TREATING COMPOSITIONS COMPRISING A NOVEL CLASS OF CARBAMIC ACID ESTERS CONTAINING AT LEAST ONE THERMALLY LABILE CARBAMIC ACID ESTER GROUP AND CONTAINING AT LEAST ONE THERMALLY STABLE CARBAMIC ACID ESTER GROUP DERIVED FROM A POLYOXYETHYLENE ETHER. THE TEXTILE TREATING COMPOSITIONS MAY BE APPLIED TO TEXTILE MATERIALS TO IMPROVE THE PHYSICAL CHARACTERS THEREOF, FOR EXAMPLE, ANTI-SOILING AND/OR SOIL RELEASE CHARACTERISTICS.
摘要:
NOVEL LIGHT-SENSITIVE POLYMERS CONTAIN AS THE LIGHT-SENSITIVE MOIETY A SIDE CHAIN WHICH CONTAINS TOW ETHYLENICALLY UNSATURATED GROUPS CONJUGATED TO EACH OTHER THROUGH AN ARYLENE GROUP. PHOTOSENSITIVE COMPOSITIONS AND ELEMENTS PREPARED WITH THESE POLYMERS ARE USEFUL IN THE PREPARATION OF PHOTOMECHANICAL IMAGES SUCH AS PHOTORESISTS AND LITHOGRAPHIC PRINTING PLATES.
摘要:
Soluble solid easily handled polyepoxide polymers can be formed from 4-vinylcyclohexene diepoxide in a catalytic process using a tertiary amine and an active hydrogen containing compound. The powdery polymers of the invention can be easily cured to thermoset resins using coreagents to form castings, laminates, and coatings having exceptional toughness and good strength.
摘要:
A ONE-PART, CAN STABLE, MERCAPTO-TERMINATED POLYMERBASED SEALANT CONTAINING INGREDIENTS WHICH ENHANCE THE TRANSMISSION OF MOISTURE VAPOR THROUGH THE SEALANT BODY TO IMPROVE THE CURE RATE. THE INGREDIENTS INCLUDE A LATENT OXIDATIVE CURING AGENT, A LATENT HYGROSCOPIC ACCELERATING AGENT, AND A MATERIAL WHICH PROMOTES THE MOVEMENT OF WATER THROUGH THE SEALANT MATRIX.