GB866998A - Improvements in or relating to siloxane elastomers - Google Patents

Improvements in or relating to siloxane elastomers

Info

Publication number
GB866998A
GB866998A GB3843458A GB3843458A GB866998A GB 866998 A GB866998 A GB 866998A GB 3843458 A GB3843458 A GB 3843458A GB 3843458 A GB3843458 A GB 3843458A GB 866998 A GB866998 A GB 866998A
Authority
GB
United Kingdom
Prior art keywords
pts
specified
diphenyldimethoxysilane
silica
particle size
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
GB3843458A
Inventor
Jack Ames
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3843458A priority Critical patent/GB866998A/en
Publication of GB866998A publication Critical patent/GB866998A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00Compositions 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
    • C08L83/04Polysiloxanes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04Polysiloxanes
    • C08G77/20Polysiloxanes containing silicon bound to unsaturated aliphatic groups
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/70Siloxanes 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

An elastomer-forming composition comprises, by weight, 1 pt. of an organosiloxane having from 1,98 to 2,01 organic radicals per Si atom, and a molecular weight of not less than 3 x 105, 1,5 to 3 pts. of a semi- or non-reinforcing filler, 0,02 to 0,2 pts. of a fluorohydrocarbon polymer, and 0,01 to 0,15 pts. of a structure control additive. The siloxanes may contain alkyl, alkenyl or aryl radicals. Fillers specified are diatomaceous earth, clays, synthetic silicas, titania and zirconium silicate. Fluorinated polymers specified are polytrifluorochloroethylene and polytetrafluoroethylene. Structure control additives specified are certain glycols and silanes described in Specifications 792,580 and 800,554, diphenylsilanediol, diphenyldimethoxysilane and diphenyldiethoxysilane. Examples disclose compositions of (1) methylvinylpolysiloxane, silica of average particle size 40 m m , P.T.F.E., red iron oxide, diphenyldimethoxysilane and 2 : 4-dichlorobenzoyl peroxide/silicone liquid paste; and (2) dimethylpolysiloxane, silica of average particle size 40 m m , P.T.F.E., benzoyl peroxide/silicone liquid paste, and (tetramethylenedioxy)-dimethylsilane. Specification 802,957 also is referred to.
GB3843458A 1958-11-28 1958-11-28 Improvements in or relating to siloxane elastomers Expired GB866998A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3843458A GB866998A (en) 1958-11-28 1958-11-28 Improvements in or relating to siloxane elastomers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3843458A GB866998A (en) 1958-11-28 1958-11-28 Improvements in or relating to siloxane elastomers

Publications (1)

Publication Number Publication Date
GB866998A true GB866998A (en) 1961-05-03

Family

ID=10403406

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3843458A Expired GB866998A (en) 1958-11-28 1958-11-28 Improvements in or relating to siloxane elastomers

Country Status (1)

Country Link
GB (1) GB866998A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449290A (en) * 1966-07-12 1969-06-10 Union Carbide Corp Silicone elastomer compositions containing powdered polytetrafluoroethylene
EP0051369A1 (en) * 1980-10-31 1982-05-12 Dow Corning Corporation Curable fluorinated silicone elastomer
EP0280437A1 (en) * 1987-02-09 1988-08-31 Shin-Etsu Chemical Co., Ltd. Elastomer roll having a first layer of an organopolysiloxane composition and a second thin layer of a fluorine resin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449290A (en) * 1966-07-12 1969-06-10 Union Carbide Corp Silicone elastomer compositions containing powdered polytetrafluoroethylene
EP0051369A1 (en) * 1980-10-31 1982-05-12 Dow Corning Corporation Curable fluorinated silicone elastomer
EP0280437A1 (en) * 1987-02-09 1988-08-31 Shin-Etsu Chemical Co., Ltd. Elastomer roll having a first layer of an organopolysiloxane composition and a second thin layer of a fluorine resin
US4810564A (en) * 1987-02-09 1989-03-07 Shin-Etsu Chemical Co., Ltd. Elastomer roll having a first layer of an organopolysiloxane composition and a second thin layer of a fluorine resin

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