GB887441A - Improvements in and relating to silicone elastomers - Google Patents

Improvements in and relating to silicone elastomers

Info

Publication number
GB887441A
GB887441A GB13131/58A GB1313158A GB887441A GB 887441 A GB887441 A GB 887441A GB 13131/58 A GB13131/58 A GB 13131/58A GB 1313158 A GB1313158 A GB 1313158A GB 887441 A GB887441 A GB 887441A
Authority
GB
United Kingdom
Prior art keywords
boron
compositions
cured
radicals
alkoxy
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
GB13131/58A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB887441A publication Critical patent/GB887441A/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
    • 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
    • C08G77/12—Polysiloxanes containing silicon bound to hydrogen
    • 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
    • C08G77/70—Siloxanes defined by use of the MDTQ nomenclature
    • 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
    • C08K5/55—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
    • C08L83/04—Polysiloxanes

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 (i) a diorganopolysiloxane, (ii) an inorganic filler, (iii) an alkoxy-containing silicon material and (iv) a boron-containing material. The compositions cure to pressure-sensitive adhesive elastomers. The siloxanes (i) may contain alkyl, alkenyl, aryl, cyanoalkyl or halohydrocarbon radicals. Specified ingredients are (ii) C blacks, silicas, TiO2, Fe2O3, Al2O3, CaCO3, ZnO, diatomaceous earth, quartz, aluminium silicate, zirconium silicate and lithopone; (iii) alkoxysilanes and alkoxy-containing siloxanes which may contain the above radicals or aminoalkyl or carbalkoxy radicals; (iv) boric acids and alkali and alkaline earth metal derivatives or metal complexes thereof, boron hydrides and complexes thereof with nitrogen compounds or hydrocarbons, boron oxides, hydrocarbon borates, borazoles, boron halides and boron anhydrides. Buffers, e.g. calcium and barium zirconates and calcium silicate, may also be added. The compositions may be cured by heating with organic peroxides. If desired, the compositions may be subjected to a room temperature ageing period from 1 to 7 days or to heat ageing for 1 to 2 hours at 250 DEG F. prior to curing. In a typical Example (1) a soft ethoxyterminated siloxane gum (made by heating a mixture of octamethylcyclotetrasiloxane, tetramethyldiethoxydisiloxane and a dimethylsiloxane-vinylethylsiloxane copolymer with a solution of potassium silanotate), was compounded with a silica filler, an ethoxy-terminated dimethylsiloxane oil and boric acid, mould-cured for 20 minutes at 340 DEG F. and post cured for 24 hours at 480 DEG F. Comparative compositions are also disclosed. Uses: in making gaskets, moulded articles, composite articles, electrical insulation and semiconductors.
GB13131/58A 1957-04-29 1958-04-25 Improvements in and relating to silicone elastomers Expired GB887441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US887441XA 1957-04-29 1957-04-29

Publications (1)

Publication Number Publication Date
GB887441A true GB887441A (en) 1962-01-17

Family

ID=22213190

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13131/58A Expired GB887441A (en) 1957-04-29 1958-04-25 Improvements in and relating to silicone elastomers

Country Status (1)

Country Link
GB (1) GB887441A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000298A1 (en) * 1980-07-14 1982-02-04 Adhesives Co Morgan Agent for forming cleaner cutting adhesives
EP0137883A1 (en) * 1983-10-18 1985-04-24 General Electric Company End-capping catalyst for forming alcoxy-functional one component RTV compositions
US6579941B1 (en) 2000-06-12 2003-06-17 Avery Dennison Corporatoin Adhesive compositions and constructions with outstanding cutting performance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000298A1 (en) * 1980-07-14 1982-02-04 Adhesives Co Morgan Agent for forming cleaner cutting adhesives
US4346189A (en) * 1980-07-14 1982-08-24 Morgan Adhesives Company Agent for forming cleaner cutting pressure sensitive adhesives
EP0137883A1 (en) * 1983-10-18 1985-04-24 General Electric Company End-capping catalyst for forming alcoxy-functional one component RTV compositions
US6579941B1 (en) 2000-06-12 2003-06-17 Avery Dennison Corporatoin Adhesive compositions and constructions with outstanding cutting performance

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