GB1308459A - Siloxane organic block copolymers - Google Patents

Siloxane organic block copolymers

Info

Publication number
GB1308459A
GB1308459A GB1308459DA GB1308459A GB 1308459 A GB1308459 A GB 1308459A GB 1308459D A GB1308459D A GB 1308459DA GB 1308459 A GB1308459 A GB 1308459A
Authority
GB
United Kingdom
Prior art keywords
siloxane
block copolymers
june
styrene
cyclic
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
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 UK Ltd
Original Assignee
Dow Corning 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 Dow Corning Ltd filed Critical Dow Corning Ltd
Publication of GB1308459A publication Critical patent/GB1308459A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G77/48—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 in which at least two but not all the silicon atoms are connected by linkages other than oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • 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
    • C08G77/442—Block-or graft-polymers containing polysiloxane sequences containing vinyl polymer sequences

Landscapes

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

Abstract

1308459 Siloxane-unsaturated compound block copolymers DOW CORNING Ltd 19 June 1970 [20 June 1969] 31294/69 Headings C3P and C3T Block copolymers are obtained by (a) polymerizing an ethylenically unsaturated monomer in the presence of a lithium-containing carbanion producing polymerization initiator and an aprotic solvent, (b) contacting the lining product with a cyclic organotrisiloxane or a cyclic organosilethylene siloxane, and optionally terminating the product with (i) conventional terminating agents, including CO 2 , or (ii) with a coupling agent such as a polyhalo silane or siloxane, the latter producing products of the form (AB) x C, where A is derived from (a) above, B from (b) above, c is the residue of the coupling agent and x is at least 2. The products may be compounded with, e.g. polystyrene. In examples, styrene, acrylonitrile, methyl methacrylate, 2-vinyl pyridine or vinyl naphthalene and polymerized in the presence of n-butyl lithium or a complex thereof with styrene or 1,1-diphenyl ethylene in various solvents, e.g. hexane, tetrahydrofuran and dimethyl formamide, followed by the polymerization of hexamethyl or a mixture thereof with hexaphenylcyclotrisiloxane or 2,2,5,5 - tetramethyl - 1- oxa - 2,5 - disilacyclopentane, and in some cases CO 2 or CH 3 OH termination and in others coupling with 1,5 - dichloro - 1,1,3,3,5,5- hexamethyltrisiloxane.
GB1308459D 1969-06-20 1969-06-20 Siloxane organic block copolymers Expired GB1308459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3129469 1969-06-20

Publications (1)

Publication Number Publication Date
GB1308459A true GB1308459A (en) 1973-02-21

Family

ID=10320993

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308459D Expired GB1308459A (en) 1969-06-20 1969-06-20 Siloxane organic block copolymers

Country Status (3)

Country Link
DE (1) DE2030272C3 (en)
FR (1) FR2046978B1 (en)
GB (1) GB1308459A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079098A (en) 1974-06-29 1978-03-14 Th. Goldschmidt Ag Process for the production of polyorganosiloxane block copolymers
WO1994013728A2 (en) * 1992-12-15 1994-06-23 Shell Internationale Research Maatschappij B.V. Process for the preparation of polydimethylsiloxane block copolymers
WO1994013729A2 (en) * 1992-12-15 1994-06-23 Shell Internationale Research Maatschappij B.V. Process for the preparation of polydimethylsiloxane block copolymers
WO1996039459A1 (en) * 1995-06-06 1996-12-12 Shell Internationale Research Maatschappij B.V. Anionically polymerized block copolymers of ethylene and cyclic siloxane monomers
JPH09216948A (en) * 1996-02-08 1997-08-19 Kao Corp Modified polysiloxane and its production
CN114763413A (en) * 2021-01-14 2022-07-19 万华化学集团股份有限公司 Method for preparing alkyl methoxy silicone oil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079098A (en) 1974-06-29 1978-03-14 Th. Goldschmidt Ag Process for the production of polyorganosiloxane block copolymers
WO1994013728A2 (en) * 1992-12-15 1994-06-23 Shell Internationale Research Maatschappij B.V. Process for the preparation of polydimethylsiloxane block copolymers
WO1994013729A2 (en) * 1992-12-15 1994-06-23 Shell Internationale Research Maatschappij B.V. Process for the preparation of polydimethylsiloxane block copolymers
WO1994013728A3 (en) * 1992-12-15 1994-08-04 Shell Int Research Process for the preparation of polydimethylsiloxane block copolymers
WO1994013729A3 (en) * 1992-12-15 1994-08-04 Shell Int Research Process for the preparation of polydimethylsiloxane block copolymers
JP3499871B2 (en) 1992-12-15 2004-02-23 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー Method for producing polydimethylsiloxane block copolymer
WO1996039459A1 (en) * 1995-06-06 1996-12-12 Shell Internationale Research Maatschappij B.V. Anionically polymerized block copolymers of ethylene and cyclic siloxane monomers
JPH09216948A (en) * 1996-02-08 1997-08-19 Kao Corp Modified polysiloxane and its production
CN114763413A (en) * 2021-01-14 2022-07-19 万华化学集团股份有限公司 Method for preparing alkyl methoxy silicone oil

Also Published As

Publication number Publication date
DE2030272C3 (en) 1980-02-28
FR2046978B1 (en) 1973-01-12
FR2046978A1 (en) 1971-03-12
DE2030272B2 (en) 1979-07-05
DE2030272A1 (en) 1971-12-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee