GB962061A - Improvements in or relating to organosilicon compositions - Google Patents

Improvements in or relating to organosilicon compositions

Info

Publication number
GB962061A
GB962061A GB38769/62A GB3876962A GB962061A GB 962061 A GB962061 A GB 962061A GB 38769/62 A GB38769/62 A GB 38769/62A GB 3876962 A GB3876962 A GB 3876962A GB 962061 A GB962061 A GB 962061A
Authority
GB
United Kingdom
Prior art keywords
moisture
radical
exposure
atoms
absence
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
GB38769/62A
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.)
Dow Silicones Corp
Original Assignee
Dow Corning 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 Dow Corning Corp filed Critical Dow Corning Corp
Publication of GB962061A publication Critical patent/GB962061A/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
    • C08L21/00—Compositions of unspecified rubbers

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)
  • Silicon Polymers (AREA)

Abstract

A siloxane rubber stock is made by mixing in the absence of moisture (1) a siloxane having a viscosity of at least 25 cs. at 25 DEG C. and having the average formula: <FORM:0962061/C3/1> in which z has an average value from 1 to 1.10, y has an average value from 1.90 to 2.0 and the sum z+y is 3, R is a monovalent radical of 1 to 18 C atoms and is a hydrocarbon (saturated or unsaturated) halohydrocarbon or cyanoalkyl radical, and n is an integer, (2) a silane of the formula RxSi(OR1)4-x, wherein R1 is a monovalent-aliphatic or haloaliphatic hydrocarbon radical (having no halogen alpha to the oxygen) containing less than 5 C atoms and x is 0 or 1, in an amount of at least 0.5 mol per mol of Si-bonded hydroxyl in (1), and (3) at least 0.1% (by wt. of (1)) of an organic titanate. The titanate (3) can be monomeric, polymeric or a chelated material, numerous examples of which are given. Fillers with or without organosilyl surface modifications, e.g. oxides of Al, Ti, Zn, Mg and Zn, aluminium silicate, mica, glass, diatomaceous earth, sand, crushed quartz, silica (fume, xerogel and precipitated), C black, graphite, phthalocyanine and copper phthalocyanine, plasticizers, e.g. end-blocked dimethylpolysiloxane liquids, compression set additives, oxidation inhibitors and ultra-violet absorbers, may also be added. The compositions cure spontaneously upon exposure to moisture. In a typical example (2) a hydroxy-terminated dimethylpolysiloxane liquid was mixed with methyltrimethoxysilane and tetrapropyltitanate to yield a liquid which was stable in the absence of moisture, but gelled to a rubber in 4 or 5 hours on exposure to air. Uses: in caulking, coating and insulating applications. Specification 762,819 is referred to.
GB38769/62A 1961-10-16 1962-10-12 Improvements in or relating to organosilicon compositions Expired GB962061A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14544361A 1961-10-16 1961-10-16

Publications (1)

Publication Number Publication Date
GB962061A true GB962061A (en) 1964-06-24

Family

ID=22513139

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38769/62A Expired GB962061A (en) 1961-10-16 1962-10-12 Improvements in or relating to organosilicon compositions

Country Status (2)

Country Link
CH (1) CH453711A (en)
GB (1) GB962061A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294739A (en) * 1964-11-19 1966-12-27 Dow Corning Method of making one component room temperature curing siloxane rubbers
US3334067A (en) * 1966-04-08 1967-08-01 Dow Corning Method of making one component room temperature curing siloxane rubbers
EP0028137A1 (en) * 1979-10-25 1981-05-06 Toray Industries, Inc. Dry planographic printing plate
US4546017A (en) * 1984-01-14 1985-10-08 Dow Corning Limted Organopolysiloxane composition curable to an elastomer and use thereof
US4585821A (en) * 1984-05-30 1986-04-29 Dow Corning Ltd. Elastomer forming compositions
EP0718371A1 (en) 1994-12-23 1996-06-26 DOW CORNING GmbH Silicone elastomer-forming composition
EP0916801A2 (en) 1997-11-15 1999-05-19 Dow Corning S.A. Insulating glass units
US5958317A (en) * 1996-08-14 1999-09-28 Dow Corning France S.A. Method for manufacturing a controlled-release device
US7022800B2 (en) 2000-01-06 2006-04-04 Dow Corning S.A. Organosiloxane compositions
EP3527771A1 (en) 2014-07-28 2019-08-21 Dow Silicones Corporation Panelized shadow box

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221693A (en) * 1979-03-02 1980-09-09 Getson John C Composition free of surface cure inhibition and method for preparing the same

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294739A (en) * 1964-11-19 1966-12-27 Dow Corning Method of making one component room temperature curing siloxane rubbers
US3334067A (en) * 1966-04-08 1967-08-01 Dow Corning Method of making one component room temperature curing siloxane rubbers
EP0028137A1 (en) * 1979-10-25 1981-05-06 Toray Industries, Inc. Dry planographic printing plate
US4546017A (en) * 1984-01-14 1985-10-08 Dow Corning Limted Organopolysiloxane composition curable to an elastomer and use thereof
US4585821A (en) * 1984-05-30 1986-04-29 Dow Corning Ltd. Elastomer forming compositions
EP0718371A1 (en) 1994-12-23 1996-06-26 DOW CORNING GmbH Silicone elastomer-forming composition
US5958317A (en) * 1996-08-14 1999-09-28 Dow Corning France S.A. Method for manufacturing a controlled-release device
EP0916801A2 (en) 1997-11-15 1999-05-19 Dow Corning S.A. Insulating glass units
US6238755B1 (en) 1997-11-15 2001-05-29 Dow Corning Corporation Insulating glass units
US7022800B2 (en) 2000-01-06 2006-04-04 Dow Corning S.A. Organosiloxane compositions
EP3527771A1 (en) 2014-07-28 2019-08-21 Dow Silicones Corporation Panelized shadow box

Also Published As

Publication number Publication date
CH453711A (en) 1968-03-31

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