GB938701A - Improvements in and relating to silicone rubber compositions - Google Patents

Improvements in and relating to silicone rubber compositions

Info

Publication number
GB938701A
GB938701A GB7103/61A GB710361A GB938701A GB 938701 A GB938701 A GB 938701A GB 7103/61 A GB7103/61 A GB 7103/61A GB 710361 A GB710361 A GB 710361A GB 938701 A GB938701 A GB 938701A
Authority
GB
United Kingdom
Prior art keywords
mixture
disclosed
containing epoxide
epoxide
silicone rubber
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
GB7103/61A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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 Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB938701A publication Critical patent/GB938701A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
    • 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
    • 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
    • C08G77/02—Polysilicates
    • 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
    • C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic 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
    • C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/24—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen halogen-containing 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
    • C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing 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
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/44—Block-or graft-polymers containing polysiloxane sequences containing only polysiloxane sequences
    • 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
    • C08G77/70—Siloxanes defined by use of the MDTQ nomenclature

Landscapes

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

Abstract

A silicone rubber-forming composition comprises (A) a linear, essentially diorganosiloxane polymer of the formula <FORM:0938701/IV(a)/1> wherein each R is a monovalent hydrocarbon (saturated or unsaturated), halohydrocarbon or cyanoalkyl radical and n has an average value of 1,99 to 2,01, (B) a reinforcing inorganic filler having a maximum average particle size of 1 micron and a minimum surface area of 100 square metres per gram, and (C) an epoxide compound in a proportion of 0,05 to 10% by weight of polymer (A). Fillers (B) specified are silicas (fume, aerogel, xerogel and naturally occurring), oxides of Al, Ti and Fe and C blacks. Compounds (C) disclosed are low molecular weight hydroxyl-containing epoxide resins or epoxide varnish raw materials; reaction products of a polyhydric phenol and a polyfunctional epichlorohydrin or polyepoxide; ethers containing epoxide groups; and organosilicon compounds containing epoxide groups, as disclosed in Specification 834,326. To secure the desired cure, a vulcanizing agent may be added, such as an organic peroxide or a metal carboxylate together with an ortho- or polysilicate or an alkylhydrogensiloxane, as disclosed in Specification 841,825. Conventional additives may also be added. In a typical example (1) a mixture of a hydroxy-terminated methylphenyl-, dimethyl-, vinylmethyl-siloxane copolymer, fume silica, wet process silica, the reaction product of allyglycidyl ether with bisphenol-A, and dichlorobenzoyl peroxide, was prepared by milling and stored; after 4 weeks the mixture was readily milled and could be sheeted, extruded etc.; a sheet of the mixture was vulcanized at 155 DEG C. for mins. to yield an elastomer. Uses: As gasketing, tubing, sealing, extrusions, mouldings, prosthetic devices, sheeting and insulation.
GB7103/61A 1960-02-25 1961-02-27 Improvements in and relating to silicone rubber compositions Expired GB938701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW27338A DE1113568B (en) 1960-02-25 1960-02-25 Compounds based on organopolysiloxane that can be hardened to form elastomers

Publications (1)

Publication Number Publication Date
GB938701A true GB938701A (en) 1963-10-02

Family

ID=7598607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7103/61A Expired GB938701A (en) 1960-02-25 1961-02-27 Improvements in and relating to silicone rubber compositions

Country Status (2)

Country Link
DE (1) DE1113568B (en)
GB (1) GB938701A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026263A2 (en) * 1979-09-28 1981-04-08 International Business Machines Corporation A method for improving the mechanical strength of elastomers
EP2031022A1 (en) * 2006-06-16 2009-03-04 NOK Corporation Silicone rubber composition

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4125510A (en) * 1977-03-01 1978-11-14 Dow Corning Corporation Method of improving crack resistance of siloxane molding compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942225C (en) * 1952-07-12 1956-04-26 Helmut Jedlicka Elastoplastic synthetic resin compound
DE937554C (en) * 1952-07-14 1956-01-12 Dow Corning Process for the production of plastic masses
US2730532A (en) * 1953-07-20 1956-01-10 Shell Dev Epoxy-substituted esters of silicon acids and their preparation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0026263A2 (en) * 1979-09-28 1981-04-08 International Business Machines Corporation A method for improving the mechanical strength of elastomers
EP0026263A3 (en) * 1979-09-28 1981-07-22 International Business Machines Corporation A method for improving the mechanical strength of elastomers
EP2031022A1 (en) * 2006-06-16 2009-03-04 NOK Corporation Silicone rubber composition
EP2319889A1 (en) * 2006-06-16 2011-05-11 Nok Corporation Silicone rubber composition
EP2031022B1 (en) * 2006-06-16 2013-09-04 NOK Corporation Silicone rubber composition

Also Published As

Publication number Publication date
DE1113568B (en) 1961-09-07

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