Patent classifications
C08L25/10
THERMOPLASTIC SILICONE ELASTOMERS
Thermoplastic silicone elastomer compositions are disclosed. The thermoplastic elastomer compositions comprise a blend of an organic thermoplastic elastomer and a silicone composition. A process for forming a vulcanised thermoplastic elastomer composition is also disclosed. The thermoplastic elastomer compositions can be used to form functional and/or aesthetic automotive parts such as gear knobs, seat belt connectors, interior mats, airbag protective covers, and over-moulded skins for dash boards and armrests; to form appliance parts; to form soft-feel grips for hand held devices; and to form medical devices, sporting goods and general rubber parts. The thermoplastic elastomer compositions provide durable aesthetics, haptic and ergonomic properties along with stability to most commonly used chemicals and high mechanical performance, abrasion and scratch resistance.
THERMOPLASTIC SILICONE ELASTOMERS
Thermoplastic silicone elastomer compositions are disclosed. The thermoplastic elastomer compositions comprise a blend of an organic thermoplastic elastomer and a silicone composition. A process for forming a vulcanised thermoplastic elastomer composition is also disclosed. The thermoplastic elastomer compositions can be used to form functional and/or aesthetic automotive parts such as gear knobs, seat belt connectors, interior mats, airbag protective covers, and over-moulded skins for dash boards and armrests; to form appliance parts; to form soft-feel grips for hand held devices; and to form medical devices, sporting goods and general rubber parts. The thermoplastic elastomer compositions provide durable aesthetics, haptic and ergonomic properties along with stability to most commonly used chemicals and high mechanical performance, abrasion and scratch resistance.
THERMOPLASTIC ELASTOMER COMPOSITION
Provided is a thermoplastic elastomer composition excellent in mechanical characteristics, abrasion resistance, etc., comprising: a crosslinked composition (X) obtained by heat-treating, under molten condition, a composition containing 100 pars of a block copolymer or a hydrogenated product thereof, the block copolymer including a polymer block A mainly derived from an aromatic vinyl compound containing 1% by mass or more of an alkylstyrene and a polymer block B mainly derived from a diene compound, 10 to 300 parts of an olefin-based resin, 0.01 to 20 parts of a crosslinking agent, 1 to 50 parts of a crosslinking adjuvant, and 30 to 250 parts of a softener for rubber; and a hydrogenated block copolymer (Y) obtained by hydrogenating a block copolymer having at least two polymer blocks of an aromatic vinyl compound and at least one polymer block of a conjugated diene compound, with the mass ratio of (X)/(Y)=10/90 to 90/10.
THERMOPLASTIC ELASTOMER COMPOSITION
Provided is a thermoplastic elastomer composition excellent in mechanical characteristics, abrasion resistance, etc., comprising: a crosslinked composition (X) obtained by heat-treating, under molten condition, a composition containing 100 pars of a block copolymer or a hydrogenated product thereof, the block copolymer including a polymer block A mainly derived from an aromatic vinyl compound containing 1% by mass or more of an alkylstyrene and a polymer block B mainly derived from a diene compound, 10 to 300 parts of an olefin-based resin, 0.01 to 20 parts of a crosslinking agent, 1 to 50 parts of a crosslinking adjuvant, and 30 to 250 parts of a softener for rubber; and a hydrogenated block copolymer (Y) obtained by hydrogenating a block copolymer having at least two polymer blocks of an aromatic vinyl compound and at least one polymer block of a conjugated diene compound, with the mass ratio of (X)/(Y)=10/90 to 90/10.
METHOD FOR PREPARING MODIFIED ACRYLONITRILE-BUTADIENE-STYRENE RESIN, AND MODIFIED ACRYLONITRILE-BUTADIENE-STYRENE RESIN PREPARED THEREBY
The present invention relates to method for preparing a modified acrylonitrile-butadiene-styrene resin having excellent matteness, impact resistance, and heat resistance, as well as having a low total volatile organic compounds content, and to a modified acrylonitrile-butadiene-styrene resin prepared thereby.
METHOD FOR PREPARING MODIFIED ACRYLONITRILE-BUTADIENE-STYRENE RESIN, AND MODIFIED ACRYLONITRILE-BUTADIENE-STYRENE RESIN PREPARED THEREBY
The present invention relates to method for preparing a modified acrylonitrile-butadiene-styrene resin having excellent matteness, impact resistance, and heat resistance, as well as having a low total volatile organic compounds content, and to a modified acrylonitrile-butadiene-styrene resin prepared thereby.
Redispersible polymer powder
The present invention relates to a water redispersible polymer powder (RDP) which comprises a co-dried admixture of a water-insoluble film forming polymer, a colloidal stabilizer and rubber particles. The presence of rubber within the RDP does not significantly affect redispersibility and may, when incorporated into hydraulically-binding compositions, provide an improvement in the physical properties of the resultant hydraulically bound composition.
Redispersible polymer powder
The present invention relates to a water redispersible polymer powder (RDP) which comprises a co-dried admixture of a water-insoluble film forming polymer, a colloidal stabilizer and rubber particles. The presence of rubber within the RDP does not significantly affect redispersibility and may, when incorporated into hydraulically-binding compositions, provide an improvement in the physical properties of the resultant hydraulically bound composition.
Redispersible polymer powder
The present invention relates to a water redispersible polymer powder (RDP) which comprises a co-dried admixture of a water-insoluble film forming polymer, a colloidal stabilizer and rubber particles. The presence of rubber within the RDP does not significantly affect redispersibility and may, when incorporated into hydraulically-binding compositions, provide an improvement in the physical properties of the resultant hydraulically bound composition.
METHOD FOR PRODUCING RUBBER COMPOSITION
The present invention provides a method for producing a rubber composition containing a rubber component (A) which contains a copolymer of a conjugated diene compound and an aromatic vinyl compound, in which the conjugated diene compound amount in the copolymer is 50% by mass or more and 73% by mass or less and the molecular weight at the peak top of the molecular weight distribution of the polystyrene-equivalent number-average molecular weight of the copolymer as measured through gel permeation chromatography is 100,000 or more and 600,000 or less, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one accelerator (D) selected from guanidines, sulfenamides, thiazoles, thiurams, thioureas, dithiocarbamates and xanthates, wherein the rubber composition is kneaded in plural stages, and in the first stage (X) of kneading, the rubber component (A), all or a part of the inorganic filler (B), all or a part of the silane coupling agent (C) and the accelerator (D) are added and kneaded. The production method can produce a rubber composition excellent in low-heat-generation property and abrasion resistance.