摘要:
A COATING COMPOSITION FOR PAPER AND SIMILAR SUBSTANCES WHICH COMPRISES AN AQUEOUS SOLUTION OF STARCH, A WATERSOLUBLE CATIONIC POLYMER AND A WATER-SOLUBLE ACROLEIN POLYMER.
摘要:
Heat-degraded thermoformed water-soluble polyvinyl alcohol is rendered odor-free by mixing a proton acceptor with the polyvinyl alcohol before the polyvinyl alcohol is heatdegraded by a thermoforming operation.
摘要:
AN EASILY PROCESSABLE RESIN COMPOSITION COMPRISING
(A) A NORMALLY DIFFICULTLY PROCESSABLE THERMOPLASTIC RESIN, OF THE TYPE OF VINYL CHLORIDE POLYMER AND THEIR CHLORINATION PRODUCTS; AND (B) IN AN AMOUNT SUFFICIENT TO EFFECT AN IMPROVEMENT IN THE PROCESSABILITY OF SAID NORMALLY DIFFICULTLY PROCESSABLE THERMOPLASTIC RESIN, A GRAFT COPOLYMER COMPRISING METHYL METHACRYLATE GRAFTED ONTO AN ALKYL VINYL ETHER BACKBONE POLYMER, THE METHYL METHACRYLATE UNITS BEING PRESENT IN AN AMOUNT OF 10-95% BY WEIGHT AND THE ALKYL VINYL ETHER BACKBONE POLYMER BEING PRESENT IN AN AMOUNT OF 5-90% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE GRAFTED COPOLYMER.
摘要:
BLENDS OF POLYCARBONATES WITH POLYACATALS WHEREIN THE POLYACETAL IS PRESENT IN THE BLEND AT A CONCENTRATION SUFFICIENT TO IMPART THERETO A RESISTANCEL TO ENVIRONMENTAL STRESS CRAZING AN CRACKING GREATER THAN THAT POSSESSED BY THE POLYCARBONATE ITSELF.
摘要:
A WATER-INSOLUBLE, CATIONIC, PERMSELECTIVE MEMBRANCE COMPRISING A HYDROCARBON, QUATERNARY NITROGEN-CONTAINING IONENE POLYNER CROSS-LINKED TO A POLYVINYL ALCOHOL SUBSTRATE.
摘要:
COMPOSITES ARE PREPARED FROM A MATERIAL CONTAINING HYDROXYL GROUPS, SUCH AS CELLULOSE, STARCH, POLYVINYL ALCOHOL, SAND, METAL OR GLASS AND A THERMOPLASTIC MATERIAL CONTAINING LABILE ATOMS, SUCH AS POLYETHYLENE OR POLYVINYL CHLORIDE, BY REACTING THE MATERIALS WITH A COUPLING AGENT, SUCH AS MALEIC ANHYDRIDE, IN THE PRESENCE OF A FREE RADICAL INITIATOR. AN IMPROVED METHOD FOR INCORPORATING FILLERS OR REINFORCING AGENTS INTO THERMOPLASTIC POLYMERS IS ALSO PROVIDED BY PRECOATING THE FILLER OR REINFORCING AGENT WITH A THERMOPLASTIC MATERIAL CONTAINING LABILE ATOMS IN THE PRESENCE OF A COUPLING AGENT AND A FREE RADICAL INITIATOR.