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GB867511A - Improvements in siloxane elastomers - Google Patents

Improvements in siloxane elastomers

Info

Publication number
GB867511A
GB867511A GB14066/57A GB1406657A GB867511A GB 867511 A GB867511 A GB 867511A GB 14066/57 A GB14066/57 A GB 14066/57A GB 1406657 A GB1406657 A GB 1406657A GB 867511 A GB867511 A GB 867511A
Authority
GB
United Kingdom
Prior art keywords
radicals
peroxides
alkoxy silane
monovalent hydrocarbon
hydrocarbon radical
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
GB14066/57A
Inventor
Nigel Page
John Tudor Lewis
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
Priority to GB14066/57A priority Critical patent/GB867511A/en
Publication of GB867511A publication Critical patent/GB867511A/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
    • C08K5/00—Use of organic ingredients
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • 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
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • C08K5/54—Silicon-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
    • C08L83/02—Polysilicates
    • 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
    • C08G77/14—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
    • C08G77/20—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
    • C08G77/70—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)
  • Organic Insulating Materials (AREA)

Abstract

An elastomer-forming composition consists essentially of (1) an acid-free organopolysiloxane having a viscosity of at least 100 cs. at 25 DEG C., an average general formula: <FORM:0867511/IV (a)/1> and being composed mainly of diorganosiloxane units, where each R is a monovalent hydrocarbon or halogenated hydrocarbon radical, from 0,05 to 10% of the radicals R being alkenyl radicals, and n has an average value of from 1,99 to 2,0, substantially all the molecules having terminal Si-bonded OH groups; (2) from 0,1 to 50% of an alkoxy silane of the formula R1mSi(OR11)4-m, where R1 is a monovalent hydrocarbon radical free from aliphatic unsaturation, R11 is an alkyl radical and m is 0 or 1 or an alkyl polysilicate dervied from the alkoxy silane; (3) from 0,01 to 5% of a carboxylate of a metal ranging from lead to manganese inclusive in the electromotive series of metals, the acid radicals of the salts having less than 16C atoms, and (4) from 0,01 to 5% of an organic peroxide, all percentages being by weight of the siloxane. Constituents specified are: silanes (2)-methyl, ethyl, isopropyl, n-butyl and sec. amyl orthosilicates; metal salts (3)-Pb. Co and Zn naphthenates, Fe and Pb 2-ethylhexoates, Cr octoate, dibutyl tin-dibenzoate, -adipate and -dilactate and Pb sebacate; and peroxides (4)-ditertiary butyl-, benzoyl-, 2 :4-dichlorobenzoyl- and dicumyl-peroxides, which may be dispersed in liquid siloxanes. Fillers, e.g. cork, wood flour, cotton linters, organic fibres, CaCO3, TiO2, C black, diatomaceous earth, zirconium silicate and silica powders, compression set additives, pigments and oxidation inhibitors may also be added. Curing may be effected at temperatures ranging from 0 DEG to 250 DEG C. Examples are given. Uses: as potting compounds, for electrical insulation and for sealing voids. Specification 687,759 is referred to.
GB14066/57A 1957-05-02 1957-05-02 Improvements in siloxane elastomers Expired GB867511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14066/57A GB867511A (en) 1957-05-02 1957-05-02 Improvements in siloxane elastomers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14066/57A GB867511A (en) 1957-05-02 1957-05-02 Improvements in siloxane elastomers

Publications (1)

Publication Number Publication Date
GB867511A true GB867511A (en) 1961-05-10

Family

ID=10034369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14066/57A Expired GB867511A (en) 1957-05-02 1957-05-02 Improvements in siloxane elastomers

Country Status (1)

Country Link
GB (1) GB867511A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2569415A1 (en) * 1984-08-27 1986-02-28 Gen Electric VULCANIZABLE POLYORGANOSILOXANE COMPOSITIONS AT AMBIENT TEMPERATURE AND PROCESS FOR THEIR PREPARATION
US4602078A (en) * 1984-07-26 1986-07-22 Dow Corning, Ltd. Silicone elastomers and adhesion promoter therefor
EP3083764B1 (en) 2013-12-19 2019-07-03 Sika Technology AG Condensation-curing silicones having temperature stability

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4602078A (en) * 1984-07-26 1986-07-22 Dow Corning, Ltd. Silicone elastomers and adhesion promoter therefor
FR2569415A1 (en) * 1984-08-27 1986-02-28 Gen Electric VULCANIZABLE POLYORGANOSILOXANE COMPOSITIONS AT AMBIENT TEMPERATURE AND PROCESS FOR THEIR PREPARATION
EP3083764B1 (en) 2013-12-19 2019-07-03 Sika Technology AG Condensation-curing silicones having temperature stability
EP3083764B2 (en) † 2013-12-19 2022-09-21 Sika Technology AG Condensation-curing silicones having temperature stability

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