![]() Linkable polymeric composition
专利摘要:
A crosslinkable composition comprising (A) a copolymer of ethylene and an unsaturated silane compound having hydrolysable group(s) optionally with other comonomers and (B) a defined dihydrocarbyl tin (IV) carboxylate compound as silanol condensation catalyst. The tin compound is preferably dibutyl tin maleate. The composition can be thermoformed to produce articles having improved surface finish. 公开号:SU1545944A3 申请号:SU853929247 申请日:1985-07-19 公开日:1990-02-23 发明作者:Давид Амплеби Джеффри 申请人:Бп Кемикалз Лимитед (Фирма); IPC主号:
专利说明:
This invention relates to polymer compositions based on copolymers of unsaturated organic monomers with unsaturated silanes containing hydrolyzable groups that can be crosslinked under the action of water in the presence of a silanol condensation catalyst, and can be used, in particular, to insulate wires and cables. The purpose of the invention is to reduce the degree of premature cross-linking when the composition is extruded. Tin (IV) dibutyl maleate used as a catalyst can be introduced into the composition by any mixing methods in the masterbatch, when it is pre-mixed with a thermoplastic material, particular copolymer of ethylene with ethyl acrylate. The composition may contain any known antioxidants, as well as additionally fillers, metal deactivators, lubricants, blowing agents, flame retardants and pigments. Prior to introduction into the composition, the catalyst can be adsorbed on powdered porous solid material with a particle diameter of not more than 20 µm, such as oxides of silicon, aluminum, magnesium, magnesium and calcium carbonates, activated carbon, etc. The proposed composition can be processed by extrusion blown, calendered, cast, centrifugally molded, and the resulting Sl 4 SL CO 4 4 CM Products are sewn under the influence of water, steam or moist air. Example. To obtain a masterbatch in a Werner-Pflidder ZSK-30 extruder with a double screw, at a rotation speed of 200 rpm, the components are mixed in the amounts shown in the table. The components of the composition Contents, mo.ch., in composition Offered Known Ethylene-ethyl acrylate copolymer93, 2593.00 Antioxidant Irganox 1010 6.006.00 Dibutyl maleate tin (IV) 0.75 Tin (IV) dibutyldilaurate -1.00 The total amount of the composition is 10 kg. The temperature in the extruder cylinder is 140 ° C at the loading zone with an increase to 1 90 ° C in the extrusion head. Extrusion yields a thread that is chopped to make a preformed masterbatch. The latter (5 May, part) is mixed with a copolymer of ethylene with 1.8 wt.% Vinyltrimethoxysilane, having a melt index (190 ° C, a load of 2.16 kg), 0.7, and a density of 923 kg / m. The dry mix is loaded into a vottfert extruder funnel equipped with a 25 mm screw (length: 23: 1 diameter) and a injection head having a 3 mm gap to obtain a flap five 0 five 0 five 0 five You temperature tolovki, the speed of rotation of the screw 40 rpm. The body tape 1, 1 mm is sewn in a temperature-controlled water bath at 80 ° C for 1 hour. A visual inspection of the tape obtained from the proposed composition shows the absence of surface defects, while on the tape of a known composition surface defects are observed due to its premature cross-linking in the extruder. When measuring surface defects on the Tally-Surf device, a value of 1.2 (standard units) was obtained for a tape from the proposed composition and 1.8 for a tape from a known composition, which is confirmed by the results of visual inspection.
权利要求:
Claims (1) [1] Invention Formula A polymer composition comprising an ethylene-vinyl-trimethoxy-silane copolymer with a content of 1.8% by weight, an ethylene-ethyl acrylate copolymer and a catalyst for strong condensation, in order to reduce the degree of premature cross-linking during extrusion contains as a catalyst dibutyl tin tin (TV) in the following ratio of components, wt.h .: Ethylene copolymer with vinyltrimethoxy silane with the content of the latter 1.8 wt.% 95.00 Ethylene-ethyl acrylate copolymer4.67 Antioxidant0,3 Tin (IV) dibutyl maleate 0.03
类似技术:
公开号 | 公开日 | 专利标题 SU1545944A3|1990-02-23|Linkable polymeric composition US5112919A|1992-05-12|Solid feeding of silane crosslinking agents into extruder CA2016568C|1996-05-14|Process for crosslinking hydrolyzable copolymers US5312861A|1994-05-17|Filled hydrolyzable copolymer compositions resistant to premature crosslinking US4753993A|1988-06-28|Compositions based on thermoplastic polymers and metal carboxylate silanol condensation catalysts JP3037713B2|2000-05-08|Flame retardant polymer composition CA1169173A|1984-06-12|Surface modification of alumina hydrate with liquidfatty acids US5403891A|1995-04-04|Organosilicon resin composition as thermoplastic resin lubricant CA1332990C|1994-11-08|Flame retardant ethylene polymer blends US4753992A|1988-06-28|Polymer composition US4420580A|1983-12-13|Method for preparing filled polyolefin resins and the resin made therefrom CA1259150A|1989-09-05|Compositions based on water-curable thermoplasticpolymers and metal carboxylate silanol condensationcatalysts US4711673A|1987-12-08|Combination of surface modifiers for powdered inorganic fillers WO2007137756A1|2007-12-06|A silicon containing compound as processing aid for polyolefin composition PT92058A|1990-04-30|PROCESS FOR THE PREPARATION OF A COMPOSITION OF SILICONE COPOLYMERS WITH WATER, CONTAINING CHARGES AND ARTICLES BASED ON THAT COMPOSITION CA1318066C|1993-05-18|Flame resistant, halogen-free thermoplastic polymer compositions KR920001792B1|1992-03-02|Elastomeric composition and products US4975480A|1990-12-04|Crosslinkable silyl polymer composition EP0351142B1|1994-06-08|Crosslinkable silyl polymer composition CA1143886A|1983-03-29|Free-flowing polyolefin molding composition ofhigh filler content, process for its manufactureand its use US3362924A|1968-01-09|Curable compositions comprising polyethylene, peroxide and particulate calcium carbonate coated with calcium stearate US3708457A|1973-01-02|Pigmented polyolefin compositions containing phthalocyanine compounds US3171866A|1965-03-02|Peroxide cured polyethylene with polyvinyl chloride filler and wire coated with the same EA018406B1|2013-07-30|Use of a silicon containing compound as drying agent for polyolefin composition comprising crosslinkable polyolefin with silane groups JPH05112679A|1993-05-07|Flame-retarding crosslinkable polymer composition
同族专利:
公开号 | 公开日 EP0169070B1|1991-04-17| JPH0774293B2|1995-08-09| FI84613C|1991-12-27| CA1254693A|1989-05-23| FI852837A0|1985-07-19| DD240022A5|1986-10-15| AT62703T|1991-05-15| IE60526B1|1994-07-27| SG66891G|1991-09-13| NO852892L|1986-01-21| FI852837L|1986-01-21| ES545410A0|1987-11-01| NO176322B|1994-12-05| IE851755L|1986-01-20| BG48216A3|1990-12-14| KR860001150A|1986-02-22| KR930009332B1|1993-09-27| AU4511085A|1986-01-23| NZ212772A|1988-02-29| GR851786B|1985-11-26| NO176322C|1995-03-15| EP0169070A2|1986-01-22| US4795786A|1989-01-03| FI84613B|1991-09-13| BR8503459A|1986-04-15| PT80827A|1985-08-01| ZA855474B|1987-03-25| GB8418592D0|1984-08-22| AU579385B2|1988-11-24| IN165802B|1990-01-13| JPS6153346A|1986-03-17| EP0169070A3|1988-12-07| ES8800320A1|1987-11-01| PT80827B|1987-10-20| DE3582524D1|1991-05-23|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US3225018A|1961-12-15|1965-12-21|Union Carbide Corp|Heat curing of ethylene/vinylsilane copolymers| US3392156A|1964-07-10|1968-07-09|Nat Distillers Chem Corp|Copolymers of ethylene and vinyl triethoxysilanes and mechanically worked products thereof| BE794718Q|1968-12-20|1973-05-16|Dow Corning Ltd|OLEFINS CROSS-LINKING PROCESS| GB1357549A|1971-11-12|1974-06-26|Dow Corning Ltd|Cross-linking of polymers| GB1526398A|1974-12-06|1978-09-27|Maillefer Sa|Manufacture of extruded products| JPS6223777B2|1978-07-05|1987-05-25|Mitsubishi Petrochemical Co| JPS6114615B2|1978-11-13|1986-04-19|Mitsubishi Petrochemical Co| JPS6232091B2|1979-03-27|1987-07-13|Mitsubishi Petrochemical Co| CH631289A5|1979-04-03|1982-07-30|Maillefer Sa|METHOD FOR MANUFACTURING AN ELECTRICAL CONDUCTOR, ISOLATED BY A CROSSLINKED PLASTIC COATING, AND INSULATED ELECTRICAL CONDUCTOR OBTAINED ACCORDING TO THE METHOD.| JPS6215580B2|1979-05-22|1987-04-08|Mitsubishi Petrochemical Co| JPS6223779B2|1979-07-03|1987-05-25|Mitsubishi Petrochemical Co| JPS6223978B2|1979-12-28|1987-05-26|Mitsubishi Petrochemical Co| JPH0345088B2|1980-07-11|1991-07-10|Kanegafuchi Chemical Ind| JPS637212B2|1980-10-03|1988-02-16|Kanegafuchi Chemical Ind| JPS5763352A|1980-10-04|1982-04-16|Kanegafuchi Chem Ind Co Ltd|Composition having improved storage stability| JPS57105446A|1980-12-19|1982-06-30|Kanegafuchi Chem Ind Co Ltd|Curable composition| JPH0218347B2|1981-07-27|1990-04-25|Kanegafuchi Chemical Ind| JPS61141761A|1984-12-12|1986-06-28|Kanegafuchi Chem Ind Co Ltd|Curable composition|GB8816657D0|1988-07-13|1988-08-17|Bp Chem Int Ltd|Crosslinkable silyl polymer composition| EP0365289A3|1988-10-21|1991-10-09|Neste Oy|Method for producing a filled water-crosslinkable silane copolymer composition| SE462752B|1988-12-23|1990-08-27|Neste Oy|SILANANEOUS SUSTAINABLE POLYMER COMPOSITION CONTAINING A SILANON COMPOUND THAT COULD BEFORE EARLY HARDING| US5047476A|1989-05-12|1991-09-10|Union Carbide Chemicals And Plastics Company Inc.|Process for crosslinking hydrolyzable copolymers| GB9103802D0|1991-02-23|1991-04-10|Bp Chem Int Ltd|Crosslinkable polymeric composition| CA2061465A1|1991-02-25|1992-08-26|Craig C. Meverden|Filled hydrolyzable copolymer compositions resistant to premature crosslinking| US5266627A|1991-02-25|1993-11-30|Quantum Chemical Corporation|Hydrolyzable silane copolymer compositions resistant to premature crosslinking and process| CA2156816A1|1994-09-07|1996-03-08|Jeffrey S. Borke|Flame retardant insulation compositions having enhanced curability| US5492760A|1994-12-05|1996-02-20|At Plastics Inc.|Water tree resistant, moisture curable insulation composition for power cables| BR9607739A|1995-12-18|1999-11-30|Jacques Schombourg|Mixtures of silane, free radical generator and amine for crosslinking olefinic polymers| US6288184B1|1999-09-29|2001-09-11|Sri International|Hydrolytically degradable olefin copolymers| US7037992B2|1999-09-29|2006-05-02|Sri International|Olefin copolymers containing hydrolytically cleavable linkages and use thereof in degradable products| FR2864096B1|2003-12-23|2007-02-23|Rhodia Chimie Sa|MONOCOMPONENT POLYORGANOSILOXANE COMPOSITION RETICULANT IN SILICONE ELASTOMER| US8324311B2|2007-07-13|2012-12-04|Dow Global Technologies Llc|Method for crosslinking polyolefins with in situ generated water| CN102458795B|2009-06-22|2014-09-03|博里利斯股份公司|Chlorine dioxide resistant polyethylene pipes, their preparation and use| CA2961125A1|2014-09-18|2016-03-24|Borealis Ag|Film with moderate crosslinking|
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申请号 | 申请日 | 专利标题 GB848418592A|GB8418592D0|1984-07-20|1984-07-20|Polymer composition| 相关专利
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