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GB1125170A - Improvements in tough films formed from organopolysiloxanes - Google Patents

Improvements in tough films formed from organopolysiloxanes

Info

Publication number
GB1125170A
GB1125170A GB45018/66A GB4501866A GB1125170A GB 1125170 A GB1125170 A GB 1125170A GB 45018/66 A GB45018/66 A GB 45018/66A GB 4501866 A GB4501866 A GB 4501866A GB 1125170 A GB1125170 A GB 1125170A
Authority
GB
United Kingdom
Prior art keywords
copolymer
sio
film
toughness value
organopolysiloxanes
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
GB45018/66A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1125170A publication Critical patent/GB1125170A/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
    • C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B42/00—Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
    • 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
    • C08G77/06—Preparatory processes
    • 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
    • C08G77/14—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
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/44—Block-or graft-polymers containing polysiloxane sequences containing only polysiloxane sequences

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Silicon Polymers (AREA)

Abstract

1,125,170. Organopolysiloxanes. GENERAL ELECTRIC CO. 7 Oct., 1966 [16 Dec., 1965], No. 45018/66. Heading C3T. In a conventional method of forming a film having a toughness value above 100,000, the material composing the film is made by condensing in the presence of stannous octoate a resinous copolymer composed of R 3 SiO 0 . 5 and SiO 2 units in a ratio of from 0À77: 1 to 1:1 respectively, and a siloxane of the formula HO(R<SP>11</SP> 2 SiO) n H, wherein R and R<SP>11</SP> are each a monovalent hydrocarbon radical and n is at least 2500, there being from 1 to 6 pts. by wt. of the hydroxyl-terminated siloxane per pt. of the copolymer. In a typical Example (1) the copolymer and hydroxy-terminated siloxane were blended together in toluene, stannous octoate added, and the resulting blend was cast on to a tin sheet and cured at 65‹ C.; a strip cut from the film had a toughness value of 760,000. Preparations of the copolymer are also described. (Toughness value = 0À5 x tensile strength x elongation.) Uses.-For making moulds, surgical gloves and for encapsulating artificial body members, e.g. artificial hearts.
GB45018/66A 1965-12-16 1966-10-07 Improvements in tough films formed from organopolysiloxanes Expired GB1125170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51437165A 1965-12-16 1965-12-16

Publications (1)

Publication Number Publication Date
GB1125170A true GB1125170A (en) 1968-08-28

Family

ID=24046861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45018/66A Expired GB1125170A (en) 1965-12-16 1966-10-07 Improvements in tough films formed from organopolysiloxanes

Country Status (3)

Country Link
DE (1) DE1694299A1 (en)
FR (1) FR1504367A (en)
GB (1) GB1125170A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097313A1 (en) * 1982-06-16 1984-01-04 Toray Silicone Co., Ltd. Method for producing thin silicone elastomeric films and the films produced thereby
EP0195936A1 (en) * 1985-02-22 1986-10-01 Toray Silicone Company Limited Method for producing organosilicon polymers and the polymers prepared thereby
EP0555050A1 (en) * 1992-02-06 1993-08-11 General Electric Company Liquid silicone copolymers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097313A1 (en) * 1982-06-16 1984-01-04 Toray Silicone Co., Ltd. Method for producing thin silicone elastomeric films and the films produced thereby
EP0195936A1 (en) * 1985-02-22 1986-10-01 Toray Silicone Company Limited Method for producing organosilicon polymers and the polymers prepared thereby
EP0555050A1 (en) * 1992-02-06 1993-08-11 General Electric Company Liquid silicone copolymers

Also Published As

Publication number Publication date
FR1504367A (en) 1967-12-01
DE1694299A1 (en) 1971-09-30

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