GB1333127A - Method of making cyclopolysiloxanes containing silanic hydrogen - Google Patents

Method of making cyclopolysiloxanes containing silanic hydrogen

Info

Publication number
GB1333127A
GB1333127A GB5961271A GB5961271A GB1333127A GB 1333127 A GB1333127 A GB 1333127A GB 5961271 A GB5961271 A GB 5961271A GB 5961271 A GB5961271 A GB 5961271A GB 1333127 A GB1333127 A GB 1333127A
Authority
GB
United Kingdom
Prior art keywords
polysiloxane
cyclopolysiloxanes
groups
acid
weight
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
GB5961271A
Other languages
English (en)
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 GB1333127A publication Critical patent/GB1333127A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02—Silicon compounds
    • C07F7/21—Cyclic compounds having at least one ring containing silicon, but no carbon in the ring
    • 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
    • C08G77/38—Polysiloxanes modified by chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Silicon Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
GB5961271A 1971-01-06 1971-12-22 Method of making cyclopolysiloxanes containing silanic hydrogen Expired GB1333127A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10448171A 1971-01-06 1971-01-06

Publications (1)

Publication Number Publication Date
GB1333127A true GB1333127A (en) 1973-10-10

Family

ID=22300729

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5961271A Expired GB1333127A (en) 1971-01-06 1971-12-22 Method of making cyclopolysiloxanes containing silanic hydrogen

Country Status (5)

Country Link
US (1) US3714213A (cg-RX-API-DMAC7.html)
JP (1) JPS5511697B1 (cg-RX-API-DMAC7.html)
CA (1) CA958027A (cg-RX-API-DMAC7.html)
FR (1) FR2121630A1 (cg-RX-API-DMAC7.html)
GB (1) GB1333127A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114634525A (zh) * 2020-12-16 2022-06-17 江西贝特利新材料有限公司 一种四甲基环四硅氧烷的制备方法

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3853932A (en) * 1973-12-28 1974-12-10 Gen Electric Process for producing silanol end-stopped polymers of low molecular weight
US3853933A (en) * 1974-01-14 1974-12-10 Gen Electric Continuous process for producing polysiloxane oils utilizing a carbon black catalyst
US3853934A (en) * 1974-01-14 1974-12-10 Gen Electric Continuous process for producing polysiloxane oils
US4222952A (en) * 1979-06-25 1980-09-16 Union Carbide Corporation Siloxane bond rearrangement effected by solid perfluorinated polymers containing pendant sulfonic acid groups
JPS60115592A (ja) * 1983-11-28 1985-06-22 Shin Etsu Chem Co Ltd ペンタメチルシクロトリシロキサンの製造方法
JPS6284441A (ja) * 1985-10-08 1987-04-17 Matsushita Electric Ind Co Ltd 光デイスク記録再生方法
US4895967A (en) * 1988-09-26 1990-01-23 General Electric Company Method for making cyclic poly(siloxane)s
US5034446A (en) * 1989-05-26 1991-07-23 Genesee Polymers Corporation Stabilized polysiloxane fluids and a process for making the same
US5034445A (en) * 1989-05-26 1991-07-23 Genesee Polymers Corporation Stabilized polysiloxane fluids and a process for making same
US5247116A (en) * 1992-07-10 1993-09-21 Temple University Of The Commonwealth System Of Higher Education Acid-catalyzed process for the production of cyclosiloxanes
US5189193A (en) * 1992-08-31 1993-02-23 Dow Corning Corporation Process for preparation of cyclic organohydrosiloxanes
US5241097A (en) * 1992-12-21 1993-08-31 Allied-Signal Inc. Process for the preparation of cyclic siloxane
US5233070A (en) * 1992-12-23 1993-08-03 Dow Corning Corporation Process for converting chlorine end-terminated polyorganosiloxanes to polyorganocyclosiloxanes
US5395956A (en) * 1994-07-05 1995-03-07 Dow Corning Corporation Process for preparing cyclic organohydrogensiloxanes
US5616646A (en) * 1994-11-07 1997-04-01 Genesee Polymers Corporation Restructuring silicone rubber to produce fluid or grease
US5491249A (en) * 1995-04-20 1996-02-13 Hercules Incorporated Process for preparing cyclic polysiloxanes from linear polysiloxanes
US6180811B1 (en) 1998-12-22 2001-01-30 Dow Corning Corporation Reducing low molecular weight cyclic organosiloxanes in a recirculating process stream
KR101796065B1 (ko) * 2007-11-09 2017-11-10 가부시키가이샤 가네카 변성 폴리오르가노실록산 조성물, 변성 폴리오르가노실록산 화합물, 및 경화성 조성물
CN102372736B (zh) * 2011-11-09 2014-05-07 江西多林科技发展有限公司 甲基氢环硅氧烷的制备方法
JP7128573B2 (ja) * 2018-01-22 2022-08-31 株式会社カネカ 官能化環状ポリシロキサンの製造方法
WO2019162360A1 (de) 2018-02-26 2019-08-29 Evonik Degussa Gmbh Zusammensetzungen auf der basis von cyclischen siloxanen als langsame superspreiter für den pflanzenschutz
CA3097236A1 (en) 2018-04-19 2019-10-24 Evonik Operations Gmbh Biocompatible siloxanes for formulation of microorganisms

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274154A (en) * 1962-08-02 1966-09-20 Midland Silicones Ltd Polymerization of cyclic siloxanes
US3415777A (en) * 1967-03-17 1968-12-10 Gen Electric Polymerization of cyclic organosiloxanes employing an activated zinc chalcogen catalyst
US3477988A (en) * 1967-04-05 1969-11-11 Union Carbide Corp Preparation of organopolysiloxanes by siloxane rearrangement
NL6816661A (cg-RX-API-DMAC7.html) * 1968-12-18 1970-05-25
US3590064A (en) * 1969-07-23 1971-06-29 Charles W Lacefield Process for preparing cyclosiloxanes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114634525A (zh) * 2020-12-16 2022-06-17 江西贝特利新材料有限公司 一种四甲基环四硅氧烷的制备方法

Also Published As

Publication number Publication date
JPS5511697B1 (cg-RX-API-DMAC7.html) 1980-03-27
CA958027A (en) 1974-11-19
FR2121630A1 (cg-RX-API-DMAC7.html) 1972-08-25
US3714213A (en) 1973-01-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees