• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A curable fluoroelastomer blend comprising:
    公开号:SU1075981A3
    申请号:SU782651773
    申请日:1978-08-24
    公开日:1984-02-23
    发明作者:Бертон Финлэй Джозеф；Омура Хисанори
    申请人:Е.И.Дюпон Де Немур Энд Компани (Фирма)；
    IPC主号:
    专利说明:

     ate
    with oo
    This invention relates to the rubber industry, in particular to the development of a rubber compound based on fluororubber.
    A known rubber mixture based on fluororubber is a copolymer of dentifridine vinyl with tetrafluoroethylene or hexafluoropropylene, while this rubber mixture requires a special temperature regime during processing, namely lower temperature, and at elevated temperatures the mixture is characterized by a large hard-to-high. 1.
    The purpose of the invention is to increase the blend technology. .
    The goal is achieved by the fact that the rubber mixture based on fluororubber - a copolymer of vinylidene fluoride (HNDF) with hexafluoropropylene (HFP) or a copolymer, HHDF with HFP and tetrafluoroethylene (TFE), additionally contains 10–95 wt. 65% copolymer of VNDF and HFP and bromotriftprrethylene (BTFE) or VNDF copolymer with HFP, TFE and BTFE with a content of bromotrifluoroethylene 0.5-3.0 wt%.
    Example 1. Partially cross-linked polymer A is obtained by continuous emu-lation polymerization in a two-liter autoclave with stirring at 105 ° C, a pressure of 36 atm, the residence time of the latex in the reactor is 20 minutes, using 28 mol of ammonium persulfate per 100 g as a free radical initiator the resulting polymer, with a monomer feed of 560 g of vinylidene fluoride, 440 g of hexafluoropropylene, 18.7 g of bromotrifluoroethylene. Conversion of all monomers to polymer was 91%. The latex is coagulated by adding aluminum-potassium alum; the resulting crumbs are washed several times with water and dried at a temperature of about 60 ° C in a circulating oven. The dried copolymer consisted of 58.6% vinylidene fluoride, 39.4% hexafluoropropylene and boomotoyltoethylene. The polymer had a gel content of 62% (determined by filtering 0.1% aqueous solution in butanone-2) and 61.5% (determined by high speed centrifugation diluted solution in the same solvent). The specific viscosity (30 ° С, 0.2 g or 1.0 g per 100 MP of butanol-1) of the solution was 0.20, the Mooney Viscosity (at 14–10 min) of the total polymer was 38 .
    Example 2. Soluble vinylidene fluoride - hexafluoropropylene copolymer B is prepared in a similar way using monomer: 1150 g
    5 vinylidene fluoride and 850 g of hexafluoropropylene, ammonium persulfate with an injection rate of 14.4 mmol per kg of the polymer formed and 22.5 mmol of 1,2-dibromotetrafluoroethane per kg of monomers are continuously added. The residence time in the reactor was nominally 15 minutes and the monomer conversion was 90.2%. The polymer obtained had 61.7% by weight of vinylidene fluoride, 38.3% by weight of hexafluoropropylene. Flour Viscosity
    5 (, 1 + 10 min.) Was 36.5.
    Example 3. Portions of the above partially cross-linked polymer A and unstitched polymer B are mixed in the form of a latex, then the mixture is separated
    0 to obtain a mixture of Polymer C, including 20.1 wt.% Polymer A and 7 and 79.9 wt.% Polymer B and a mixture of Polymer D comprising 40.1 wt.% Poly-. measure AI 59.9 weight. % polymer B. Viscosity
    5 Mooney, (100 ° C, 1 + 10 min) mixtures of C and JI were 38.5 and 40.0. Thus, polymer A, polymer B, and mixtures of their C and D had similar viscosity indices.
    Example 4. Before mixing, polymers A, B, C, and D are compared in a prreshnevoy rheometer, piston diameter 1 inch, 3.5 mm matrix diameter, s The ratio of matrix length to diameter 2, temperature 120 ° C, series speed: extrusion Results i at piston speeds of 0.5 g / inch. 0.02 g / mm (see table. 1).
    Table 1
    ABOUT
    20 40 100
    0.037 0.03 0.02 0.017
    In the absence of swelling, the extrudate weighs 0.014 g / mm. A significant improvement in the swelling of the matrix even 4dl low polymer content A. jlp higher speeds will increase.
    Example 5. Polymers A, B, C and D are mixed and extruded
    D.
    Example b. Additional polymers F I containing bromotrifluoroethylene from 2.2% to 3.3% are obtained by the method for polymer A with varying feed rate of bromotrifluoroethylene. These polymers are treated in a press-mixer with a soluble 66% and 40% -n1 hexafluoroprosphenene copolymer E obtained by the method for a polymer of Mooney Viscosity (1 + 10 min) 37. A mixture of Comp .-.
    (temperature zone in the extruder, C: raw material 65, cylinder 88, head 100, matrix 120, worm to 80) Worm speed.; 35 6b / min. extruded tubes are placed immediately in a cold room. The internal dimensions of the tubes are measured after the tubes have cooled down and are sufficiently cured, but without any deformation (Table 2).
    ITAO. faces2
    Some sticking Moderate sticking
    Easy sticking
    Very light sticking
    with all polymers in a composition containing 30 parts by weight and b weight.h. calcium hydroxide. Mixture extruded. through the extruder in the above temperature and rotational speed zones of the screw. Matrix swelling
    301 is measured at a standard extrusion rate of 400 g / min. The results show that the swelling was improved by adding any of the helepolymers (Table 3),
    T a b l and c a 3
    权利要求:
    Claims (1)
    [1]
    RUBBER MIXTURE BASED ON FLUORIZING - a copolymer of vinyl denfluoride with hexafluoropropylene or a copolymer of vinylidene fluoride with hexafluoropropylene and tetrafluoroethylene, characterized in that, in order to increase the processability of the mixture and improve the efficiency of its production, it additionally contains 10-95 wt% partially insoluble with 50 wt. -65% copolymer of vinylidene fluoride with hexafluoropropylene and bromotrifluoroethylene or a copolymer of vinylidene fluoride with hexafluoropropylene, tetrafluoroethylene and bromotrifluoroethylene when holding bromotrifluoroethylene 0.53.0 May.%.
    S
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1075981A3|1984-02-23|Rubber stock based on fluorinated rubber
    US3851018A|1974-11-26|Crosslinked fluoroelastomer and composition containing same
    US5006594A|1991-04-09|Fluorinated thermoplastic elastomers containing polymeric additives and process for preparing such elastomers
    DE60320285T2|2009-05-14|PEROXIDE-CURABLE FLUORELASTOMERS
    DE2940686C2|1990-06-28|
    DK149170B|1986-02-24|FLUORABLE COPOLYMER
    US3654210A|1972-04-04|Aqueous polymer dispersions on the basis of polytetra-fluoroethylene
    US3707529A|1972-12-26|Elastomeric vinylidene fluoride polymers with 55-95 percent non-ionic end groups
    US3345317A|1967-10-03|Emulsion polymerization of tetrafluoroethylene using trifluorotrichloroethane as emulsion stabilizer
    EP0150953B1|1990-04-11|Extrusion finishing of perfluorinated copolymers
    DE1645010C3|1981-05-27|Process for the copolymerization of vinylidene fluoride with cis-1-H-pentafluoropropene or hexafluoropropene
    SU822755A3|1981-04-15|Method of producing fluoroelastomers
    US2356091A|1944-08-15|Copolymers of sulphur modified polyhaloprenes
    RU2158274C1|2000-10-27|Method of preparing elastic copolymer of vinylidene fluoride with 25-30 mole % of hexafluoropropylene
    JPH11240918A|1999-09-07|Tetrafluoroethylene-based copolymer, its production and its use
    US5852125A|1998-12-22|Fluororubber, a process for its production and its use, as well as a process for producing fluororubber moldings and/or coatings
    US3467636A|1969-09-16|Redox catalyst system for preparing vinylidene fluoride interpolymers
    EP0929584B1|2001-05-09|Liquid fluoric rubber
    US3882198A|1975-05-06|Polyvinyl halide resin compositions having improved processability containing a methyl methacrylate/alkylacrylate copolymer
    US5385981A|1995-01-31|Thermoplastic fluoroelastomers produced by graft copolymerization
    US2919263A|1959-12-29|Process for the preparation of high molecular weight fluorine compounds
    DE1962597C3|1980-11-06|Terpolymers
    USH130H|1986-09-02|Tetrafluoroethylene hexafluoropropylene copolymer modified with perfluoropropyl vinyl ether
    DE3020185C2|1987-09-03|
    US2933481A|1960-04-19|Curable hexafluoropropene-vinylidene fluoride composition
    同族专利:
    公开号 | 公开日
    NL7809425A|1979-03-20|
    CA1102476A|1981-06-02|
    IT7827740D0|1978-09-15|
    JPS6056185B2|1985-12-09|
    DE2830038A1|1979-03-29|
    IT1098854B|1985-09-18|
    FR2403363B1|1983-08-19|
    GB2004288A|1979-03-28|
    FR2403363A1|1979-04-13|
    GB2004288B|1982-03-03|
    US4115481A|1978-09-19|
    BE870520A|1979-03-15|
    JPS5454163A|1979-04-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3723577A|1970-11-05|1973-03-27|Minnesota Mining & Mfg|Fluorinated elastomer blends|
    US3864228A|1971-04-26|1975-02-04|Electronized Chem Corp|Moldable and heat recoverable composition comprising an admixture of vinylidene fluoride/hexafluoropropylene copolymer and a polymer of vinylidene fluoride|
    US3929934A|1973-11-19|1975-12-30|Du Pont|Novel fluoroelastomers in powder form|
    US4035565A|1975-03-27|1977-07-12|E. I. Du Pont De Nemours And Company|Fluoropolymer containing a small amount of bromine-containing olefin units|
    US3987126A|1975-07-31|1976-10-19|E. I. Du Pont De Nemours And Company|Fluoroelastomer blend composition|US4299958A|1979-05-29|1981-11-10|E. I. Dupont De Nemours And Company|S-Triazine-2,4,6-triones|
    US4303761A|1979-05-29|1981-12-01|E. I. Du Pont De Nemours And Company|Fluoroelastomer gelling agents and products made therefrom|
    US4320216A|1979-05-29|1982-03-16|E. I. Du Pont De Nemours And Company|Fluoroelastomer gelling agents and products made therefrom|
    US4271275A|1979-12-14|1981-06-02|E. I. Du Pont De Nemours And Company|Fluoroelastomer composition containing oxirane acid acceptor|
    US4413094A|1982-09-29|1983-11-01|E. I. Du Pont De Nemours & Co.|Perfluoroelastomer blends|
    DK310484A|1983-06-30|1984-12-31|Montedison Spa|ELASTOMER PREPARATION BASED ON VINYLIDEEN FLUORIDE|
    US4543394A|1983-08-15|1985-09-24|E. I. Du Pont De Nemours And Company|Fluoroelastomer having improved compression set resistance|
    FR2583914B1|1985-06-21|1989-04-07|Thomson Csf|DIELECTRIC MATERIALS BASED ON POLYMERS AND WITH HIGH DIELECTRIC PERMITTIVITY|
    US4708988A|1985-07-01|1987-11-24|E. I. Du Pont De Nemours And Company|Process for dynamically partially gelling fluoroelastomers|
    US5202372A|1986-06-30|1993-04-13|Ausimont S.P.A|Curable compositions based on fluoroelastomers vulcanizable with peroxides|
    US4935467A|1987-06-04|1990-06-19|Raychem Corporation|Polymeric blends|
    US4868234A|1987-04-28|1989-09-19|E. I. Du Pont De Nemours And Company|Fluoroelastomer compositions containing a tetraalkylammonium halide and vulcanization accelerator|
    US5006594A|1988-12-30|1991-04-09|E. I. Du Pont De Nemours And Company|Fluorinated thermoplastic elastomers containing polymeric additives and process for preparing such elastomers|
    US5741855A|1996-06-10|1998-04-21|Raychem Corporation|Compatibilized fluoroplastic blends|
    US6239223B1|1997-09-05|2001-05-29|Chemfab Corporation|Fluoropolymeric composition|
    JP3867428B2|1998-03-06|2007-01-10|ユニマテック株式会社|Fluorine-containing copolymer composition|
    CA2312194A1|2000-06-13|2001-12-13|Mario Boucher|Fluorinated, bromo-sulfonated curable elastomers, with a low gt, derived from vinylidene fluoride and containing neither tetrafluoroethylene nor a siloxane group|
    US6737479B2|2000-11-17|2004-05-18|Immix Technologies, Llc|Dynamically cured fluoroelastomer blends|
    FR2820140B1|2001-01-26|2007-03-09|Solvay|THERMOPLASTIC HALOGEN POLYMER COMPOSITIONS, PROCESS FOR THEIR PREPARATION AND USE THEREOF|
    JP4233276B2|2002-06-27|2009-03-04|三井・デュポンフロロケミカル株式会社|Binder for electrode material|
    ITMI20041253A1|2004-06-22|2004-09-22|Solvay Solexis Spa|FLUOROELASTOMER GEL|
    ITMI20041251A1|2004-06-22|2004-09-22|Solvay Solexis Spa|PERFLUOROELASTOMER GEL|
    JP5162818B2|2005-11-17|2013-03-13|ユニマテック株式会社|Fluorine-containing copolymer blend|
    US20070179248A1|2006-02-02|2007-08-02|Balzer James R|High elongation FKM formulations with improved molding properties|
    US20090227726A1|2008-03-04|2009-09-10|Dupont Performance Elastomers L.L.C.|Peroxide curable fluoroelastomer compositions and articles made therefrom|
    US8304016B2|2009-12-28|2012-11-06|Eastman Kodak Company|Method of making fuser member|
    US20110159222A1|2009-12-28|2011-06-30|Jiann-Hsing Chen|Fluorocarbon thermoplastic materials cured with organic primary amines|
    US20110159276A1|2009-12-28|2011-06-30|Jiann-Hsing Chen|Fuser member with fluoropolymer outer layer|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/834,055|US4115481A|1977-09-16|1977-09-16|Fluoroelastomer blend composition|
    [返回顶部]