GB867485A - New and useful siloxane compositions - Google Patents

New and useful siloxane compositions

Info

Publication number
GB867485A
GB867485A GB1663058A GB1663058A GB867485A GB 867485 A GB867485 A GB 867485A GB 1663058 A GB1663058 A GB 1663058A GB 1663058 A GB1663058 A GB 1663058A GB 867485 A GB867485 A GB 867485A
Authority
GB
United Kingdom
Prior art keywords
tetramethylethylenedioxy
specified
dimethylsilane
atoms
siloxane
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
GB1663058A
Inventor
Jack Ames
George Bruce Ingram
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 GB1663058A priority Critical patent/GB867485A/en
Publication of GB867485A publication Critical patent/GB867485A/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
    • 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
    • C08G77/04—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
    • C08G77/42—Block-or graft-polymers containing 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 composition comprises by weight from 30 to 95% of one or more organopolysiloxanes convertible to elastomers and having a viscosity from 5 X 106 to 500 X 106 cp. at 20 DEG C., and from 1 to 20% of the siloxane of a polyfluoroethylene and from 1 to 20% of an organosilane which is the reaction product of a dihydric alcohol of the general formula: <FORM:0867485/IV (a)/1> in which R1 and R3 are each a hydrogen atom, an alkyl group of 1 to 6 C atoms or a phenyl group, and R2 and R4 are each an alkyl group of 1 to 3 C atoms, with a silane of the formula: RaR1bR11cSiX4-a-b c, where a, b and c are each 0, 1, 2 or 3, a+b+c equals 1, 2 or 3, R, R1 and R11 are each an alkyl, alkenyl or aryl radical of not more than 12 C atoms and X is a halogen or an alkoxy radical derived from an alcohol of lower boiling point than the dihydric alcohol. The siloxanes may contain Si-bonded alkyl, aryl or alkenyl radicals. P.T.F.E. and polytrifluorochloroethylene, preferably having a particle size of 0,15 to 100m , are specified. Optional fillers specified are silica, alumina, titania, lithopone, calcium carbonate, carbon and talc. Curing agents specified are benzoyl-, di-t-butyl-, t-butyl-, 2 : 4-di-chlorobenzoyl-, chlorobenzoyl- and di-cumyl-peroxides and t-butylperacetate. Silanes specified are (tetramethylethylenedioxy) dimethylsilane, (tetramethylethylenedioxy) diethylsilane, (tetramethylethylenedioxy)-diphenylsilane, (tetramethylethylenedioxy) methylphenylsilane, pinacolmonotrimethylsilylether, pinacolbis-trimethylsilylether, and [di (methylethyl) ethylenedioxy] dimethylsilane. In a typical Example (1) methylvinyl siloxane, precipitated silica, diatomaceous earth, red iron oxide, (tetramethylethylenedioxy) dimethylsilane, and 2 : 4-dichlorobenzoyl peroxide in a liquid siloxane were compounded together and stored prior to milling and curing.
GB1663058A 1958-05-23 1958-05-23 New and useful siloxane compositions Expired GB867485A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1663058A GB867485A (en) 1958-05-23 1958-05-23 New and useful siloxane compositions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1663058A GB867485A (en) 1958-05-23 1958-05-23 New and useful siloxane compositions

Publications (1)

Publication Number Publication Date
GB867485A true GB867485A (en) 1961-05-10

Family

ID=10080795

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1663058A Expired GB867485A (en) 1958-05-23 1958-05-23 New and useful siloxane compositions

Country Status (1)

Country Link
GB (1) GB867485A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328340A (en) * 1963-09-09 1967-06-27 Gen Electric Organopolysiloxane composition of reduced structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3328340A (en) * 1963-09-09 1967-06-27 Gen Electric Organopolysiloxane composition of reduced structure

Similar Documents

Publication Publication Date Title
GB1273907A (en) Non-corrosive siloxane vulcanisable at room temperature
ES338715A2 (en) Organo-polysiloxane composition convertible at room temperature
MX9704449A (en) Aminosilane compounds in silica-filled rubber compositions.
GB1024234A (en) Improvements in or relating to siloxane elastomers
AU550448B2 (en) Silicone composition
GB1117043A (en) Organosilicon compounds
ES359329A1 (en) Organo - polysiloxane compositions convertible into elastomers at room temperature
GB1169411A (en) Organopolysiloxane Compositions which Cure to Elastomers at Room Temperature.
GB586956A (en) Improvements in and relating to organo-silicon compounds
GB822649A (en) Improvements relating to organopolysiloxane compositions
GB750947A (en) Organosilicon compositions
GB1438472A (en) Organopolysiloxane compositions which cure at ambient temperature
GB867485A (en) New and useful siloxane compositions
ES435442A1 (en) Addition products of an n-allylamino-s-triazine and an organopolysiloxane
GB1083737A (en) Improvements in substituted silanes
GB1077239A (en) Improvements in carbamate usage
GB697057A (en) Improvements in or relating to heat-hardenable siloxane compositions
GB1244591A (en) Pentacoordinate silicon endblocked siloxanes
GB915931A (en) Improvements in or relating to silicone resins
GB781488A (en) Improvements in organopolysiloxane compositions
GB936408A (en) Improvements in or relating to siloxane elastomers
GB788964A (en) Improvements in or relating to siloxane compositions and elastomers
GB766665A (en) Improvements in organopolysiloxane elastomers
GB735736A (en) Improvements in and relating to silicone rubbers
ES357466A1 (en) Composition and process for the preparation of organosilicon elastomers