GB859284A - Improvements in or relating to silicone rubber - Google Patents

Improvements in or relating to silicone rubber

Info

Publication number
GB859284A
GB859284A GB28044/58A GB2804458A GB859284A GB 859284 A GB859284 A GB 859284A GB 28044/58 A GB28044/58 A GB 28044/58A GB 2804458 A GB2804458 A GB 2804458A GB 859284 A GB859284 A GB 859284A
Authority
GB
United Kingdom
Prior art keywords
siloxane
vulcanisation
fe2o3
borates
auto
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB28044/58A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midland Silicones Ltd
Original Assignee
Midland Silicones Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midland Silicones Ltd filed Critical Midland Silicones Ltd
Publication of GB859284A publication Critical patent/GB859284A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/16—Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxyl groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/18—Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/55—Boron-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
    • C09J183/04—Polysiloxanes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Organic Insulating Materials (AREA)

Abstract

An auto-adhering silicone rubber contains from 0,015 to 0,5% (by weight of the siloxane in the rubber) of boron added as an alkyl borate prior to vulcanisation. Borates specified are methyl-, propyl-, butyl- and octadecyl-borates. The compositions used for making the rubbers comprise (a) convertible siloxanes having alkyl, alkenyl, aryl, alkaryl or halogenated hydrocarbon radicals, and (b) fillers, e.g. TiO2, ZnO, Al2O3, Fe2O3, SiO2 (fume, aerogel and zerogel), diatomaceous earth, crushed quartz, C black, glass fibres and powder, clay, cork P.T.F.E. and other organic resins and copper phthalocyanine, which may be treated with organosilicon compounds. Vulcanisation may be effected (1) by heating with benzoyl-, dichlorobenzoyl-, di-t-butyl- or other peroxide, (2) by mixing with combinations of alkylpolysilicates or methylhydrogensiloxanes and carboxylates, e.g. lead octoate, dibutylin-dilaurate, stannous octoate and ferric naphthenate, (3) by exposure to high energy radiation such as that derived from a Van de Graff machine or from cobalt 60, or (4), where the siloxane contains chloroalkyl radicals, by mixing with a polyamine, e.g. ethylene diamine or diethylene-triamine. In typical Examples (1) a mixture of a dimethylsiloxane gum, a liquid dimethylsiloxane, crushed quartz, propylpolysilicate, lead octoate and triethylborate, was pressed into a sheet and allowed to stand at room temperature for 24 hours. The resulting cured sheet exhibited auto-adhesion; (2) a mixture of a copolymer composed of dimethyl-, phenylmethyl- and methylvinyl-siloxane units, fume silica, a liquid hydroxylated siloxane, Fe2O3, dichlorobenzoyl peroxide and ethyl borate, was extruded in the form of a Tape and heated for 15 secs. at 330 DEG C. Uses: for insulating electrical equipment. U.S.A. Specification 2,431,878 is referred to.
GB28044/58A 1957-11-15 1958-09-01 Improvements in or relating to silicone rubber Expired GB859284A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US859284XA 1957-11-15 1957-11-15

Publications (1)

Publication Number Publication Date
GB859284A true GB859284A (en) 1961-01-18

Family

ID=22194910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28044/58A Expired GB859284A (en) 1957-11-15 1958-09-01 Improvements in or relating to silicone rubber

Country Status (1)

Country Link
GB (1) GB859284A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282968B (en) * 1965-03-19 1968-11-14 Midland Silicones Ltd Heat-vulcanizable organopolysiloxane molding compounds
DE1293374B (en) * 1961-08-21 1969-04-24 Midland Silicones Ltd Process for the production of self-adhesive silicone rubber tapes
US3525707A (en) * 1969-08-05 1970-08-25 Gen Electric Organopolysiloxane compositions containing boron - oxygen compound,phosphorous polyether,and filler
WO2003043724A1 (en) * 2001-11-23 2003-05-30 Dow Corning Corporation Method and apparatus for dispensing high viscosity liquids into a mixer
US8785507B2 (en) 2010-03-09 2014-07-22 University Of Virginia Patent Foundation Viscoelastic silicon rubber compositions
US9550864B2 (en) 2011-08-10 2017-01-24 University Of Virginia Patent Foundation Viscoelastic silicon rubber compositions

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293374B (en) * 1961-08-21 1969-04-24 Midland Silicones Ltd Process for the production of self-adhesive silicone rubber tapes
DE1282968B (en) * 1965-03-19 1968-11-14 Midland Silicones Ltd Heat-vulcanizable organopolysiloxane molding compounds
US3525707A (en) * 1969-08-05 1970-08-25 Gen Electric Organopolysiloxane compositions containing boron - oxygen compound,phosphorous polyether,and filler
WO2003043724A1 (en) * 2001-11-23 2003-05-30 Dow Corning Corporation Method and apparatus for dispensing high viscosity liquids into a mixer
US8785507B2 (en) 2010-03-09 2014-07-22 University Of Virginia Patent Foundation Viscoelastic silicon rubber compositions
US9102799B2 (en) 2010-03-09 2015-08-11 University Of Virginia Patent Foundation Viscoelastic silicone rubber compositions
US9550864B2 (en) 2011-08-10 2017-01-24 University Of Virginia Patent Foundation Viscoelastic silicon rubber compositions
US10011686B2 (en) 2011-08-10 2018-07-03 University Of Virginia Patent Foundation Viscoelastic silicone rubber compositions
US10358528B2 (en) 2011-08-10 2019-07-23 University Of Virginia Patent Foundation Viscoelastic silicone rubber compositions

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