Rubber dispersions II

• Main Authors: LINDNER; CHRISTIAN, LIEBIG; LOTHAR, OTT; KARL-HEINZ
• Format: Patent
• Language: English
• Published: 12.06.1984
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS; WORKING-UP

Stable, free-flowing dispersions in organic liquids of rubbers in the form of discrete particles having an average diameter of from 100 to 3000 nm which contains: A-as rubber, from 1 to 20% by weight, based on the total dispersion, of a crosslinked diene rubber; B-from 0 to 20% by weight, based on the total dispersion, of water in the form of a water-in-oil emulsion; C-as the continuous organic phase, from 99 to 66% by weight, based on the total dispersion, of (a) C1-C10 alkyl acrylates or alkyl methacrylates, methyl methacrylate, ethyl acrylate or n-hexyl acrylate; or (b) a mixture of from 85 to 50% by weight of styrene or alpha -methyl styrene and from 15 to 50% by weight of acrylonitrile, methacrylonitrile or C1-C6 alkyl acrylates or alkyl methacrylates, methyl methacrylate, ethyl acrylate, n-hexyl acrylate; or (c) a mixture of from 85 to 50% by weight of a C1-C10 alkyl acrylate or alkyl methacrylate and from 15 to 50% by weight of acrylonitrile, methacrylonitrile or styrene; up to 60% by weight of a liquid hydrocarbon can be added to and mixed with (a), (b) and (c), and a process for producing said dispersions.