GB659445A - Improvements in and relating to heat-curable elastic compositions - Google Patents

Improvements in and relating to heat-curable elastic compositions

Info

Publication number
GB659445A
GB659445A GB6291/49A GB629149A GB659445A GB 659445 A GB659445 A GB 659445A GB 6291/49 A GB6291/49 A GB 6291/49A GB 629149 A GB629149 A GB 629149A GB 659445 A GB659445 A GB 659445A
Authority
GB
United Kingdom
Prior art keywords
zro
silicon atom
methyl groups
elastomers
per cent
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
GB6291/49A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB659445A publication Critical patent/GB659445A/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
    • C08G77/12—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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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

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)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Elastomers consisting essentially of a methylpolysiloxane containing 1.98 to 2.0 methyl groups per silicon atom are made by condensing a liquid comprising polymeric dimethyl siloxane containing up to 2.0 mol. per cent copolymerized monomethylsiloxane and 0.1 to 6 per cent by weight of a zirconyl nitrate. Zirconyl nitrates specified are 3ZrO2.2N2O5, ZrO2.N2O5, ZrO(NO3)2.2H2O, Zr2O5(NO3)2. 5H2O, Zr(NO3)4.5H2O, ZrO(NO3)2.3 1/2 H2O and ZrO(NO3)2. Fillers, e.g. diatomaceous earth, titania, lithopone, talc and silica, and pigments may be added. In examples, a methylpolysiloxane containing 1.998 methyl groups per silicon atom was compounded with ZrO(NO3)2. 3 1/2 H2O, and (1) TiO2, and (2) "Celite" (Regis tered Trade Mark), and the products were then moulded under pressure at 150 DEG C. and heated at 200 DEG C. Specifications 592,018 and 594,481 are referred to. The Specification as open to inspection under Sect. 91 comprises also the use of elastomers of other methyl silicone gums and the modified elastic products disclosed in Specification 592,018 and 594,481. This subject-matter does not appear in the Specification as accepted.
GB6291/49A 1948-03-11 1949-03-08 Improvements in and relating to heat-curable elastic compositions Expired GB659445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US659445XA 1948-03-11 1948-03-11

Publications (1)

Publication Number Publication Date
GB659445A true GB659445A (en) 1951-10-24

Family

ID=22066209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6291/49A Expired GB659445A (en) 1948-03-11 1949-03-08 Improvements in and relating to heat-curable elastic compositions

Country Status (1)

Country Link
GB (1) GB659445A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282597B (en) * 1964-02-19 1968-11-14 Hoechst Ag Process for making textiles water repellent with organopolysiloxane emulsions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282597B (en) * 1964-02-19 1968-11-14 Hoechst Ag Process for making textiles water repellent with organopolysiloxane emulsions

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