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GB1062629A - Improvements in or relating to the preparation of organopolysiloxane resins - Google Patents

Improvements in or relating to the preparation of organopolysiloxane resins

Info

Publication number
GB1062629A
GB1062629A GB4827262A GB4827262A GB1062629A GB 1062629 A GB1062629 A GB 1062629A GB 4827262 A GB4827262 A GB 4827262A GB 4827262 A GB4827262 A GB 4827262A GB 1062629 A GB1062629 A GB 1062629A
Authority
GB
United Kingdom
Prior art keywords
radical
hydrolysed
hydrolysis
cohydrolysed
diorganodichlorosilane
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
GB4827262A
Inventor
Glyn Islwyn Harris
Hedley Samuel Bowden Marshall
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 GB4827262A priority Critical patent/GB1062629A/en
Publication of GB1062629A publication Critical patent/GB1062629A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Silicon Polymers (AREA)

Abstract

An organosilicon composition having a ratio of organic radicals to Si atoms of 1.01-1.85 is prepared by forming a mixture of the hydrolysis products of a diorganodichlorosilane and a silane of formula RSiClnX3- n, wherein n is 1 or 2, R is a monovalent hydrocarbon radical which may be substituted and X is an alkoxy radical which is less easily hydrolysed than the chlorine atoms under the conditions of the hydrolysis reaction, said hydrolyses being effected at a pH of 5.5-9.0. In a modification the two silanes may be cohydrolysed. After hydrolysis the composition may be polymerized to form a polysiloxane e.g. by heating in the presence of zinc octoate. The radical R may be methyl, vinyl or phenyl and X may be an isopropoxy or isobutoxy radical. In a typical example (1) 3.6 moles of phenylisopropoxydichlorosilane and dimethyldichlorosilane (8.4 moles) were hydrolysed together in the presence of ammonium carbonate, water and diethyl ether.ALSO:Glass cloth tape is coated e.g. by dipping, with a solution of a polysiloxane composition formed by hydrolysing at pH 5.5-9.0 a diorganodichlorosilane and a silane of formula RSi ClnX3-n wherein n is 1 or 2, R is a monovalent substituted or unsubstituted hydrocarbon radical and X is an alkoxy radical, and then polymerizing the mixture of hydrolysis products. The two silanes may be cohydrolysed, or hydrolysed separately and then mixed.
GB4827262A 1962-12-21 1962-12-21 Improvements in or relating to the preparation of organopolysiloxane resins Expired GB1062629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4827262A GB1062629A (en) 1962-12-21 1962-12-21 Improvements in or relating to the preparation of organopolysiloxane resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4827262A GB1062629A (en) 1962-12-21 1962-12-21 Improvements in or relating to the preparation of organopolysiloxane resins

Publications (1)

Publication Number Publication Date
GB1062629A true GB1062629A (en) 1967-03-22

Family

ID=10448009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4827262A Expired GB1062629A (en) 1962-12-21 1962-12-21 Improvements in or relating to the preparation of organopolysiloxane resins

Country Status (1)

Country Link
GB (1) GB1062629A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116179149A (en) * 2023-03-29 2023-05-30 广州盛泰诺新材料科技有限公司 High-strength 107 glue and preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116179149A (en) * 2023-03-29 2023-05-30 广州盛泰诺新材料科技有限公司 High-strength 107 glue and preparation method and application thereof
CN116179149B (en) * 2023-03-29 2023-08-01 广州盛泰诺新材料科技有限公司 High-strength 107 glue and preparation method and application thereof

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