GB1042784A - New and improved process for the production of organopolysiloxanes - Google Patents

New and improved process for the production of organopolysiloxanes

Info

Publication number
GB1042784A
GB1042784A GB319864A GB319864A GB1042784A GB 1042784 A GB1042784 A GB 1042784A GB 319864 A GB319864 A GB 319864A GB 319864 A GB319864 A GB 319864A GB 1042784 A GB1042784 A GB 1042784A
Authority
GB
United Kingdom
Prior art keywords
alkyl
atoms
bonded
weight
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
GB319864A
Inventor
James Joseph Gallagher
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB319864A priority Critical patent/GB1042784A/en
Publication of GB1042784A publication Critical patent/GB1042784A/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
    • C08G77/04—Polysiloxanes
    • C08G77/12—Polysiloxanes containing silicon bound to hydrogen

Abstract

Alkyl or substituted alkylpolysiloxanes containing Si-bonded H atoms are made by reacting together (1) a dialkyl or di-substituted alkyl polysiloxane, (2) a hexa-alkyl- or bisdialkylhydrogen-disiloxane and (3) an organopolysiloxane of average mol. weight up to 5000 and containing Si-bonded H atoms, in the presence of ferrous, ferric, cuprous or cupric sulphate. Substituted alkyl groups specified are aminopropyl groups. The sulphate is used in amount of 0.25 to 10% by weight of the reaction mixture, and the reaction is effected at 15 DEG to 150 DEG C. In a typical Example (1) hexamethyldisiloxane, octamethylcyclotetrasiloxane and trimethylsilyl-terminated methylhydrogenpolysiloxane were mixed with FeSO4 and the resulting mixture was heated at 111 DEG C. for 2 1/4 hours to yield the desired polymer.
GB319864A 1964-01-24 1964-01-24 New and improved process for the production of organopolysiloxanes Expired GB1042784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB319864A GB1042784A (en) 1964-01-24 1964-01-24 New and improved process for the production of organopolysiloxanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB319864A GB1042784A (en) 1964-01-24 1964-01-24 New and improved process for the production of organopolysiloxanes

Publications (1)

Publication Number Publication Date
GB1042784A true GB1042784A (en) 1966-09-14

Family

ID=9753807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB319864A Expired GB1042784A (en) 1964-01-24 1964-01-24 New and improved process for the production of organopolysiloxanes

Country Status (1)

Country Link
GB (1) GB1042784A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0430253A2 (en) * 1989-11-30 1991-06-05 Dow Corning Toray Silicone Company, Limited Method for neutralizing acids in organopolysiloxanes
GB2315756A (en) * 1996-07-30 1998-02-11 Gen Electric Process for preparing hydrogen siloxane copolymers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0430253A2 (en) * 1989-11-30 1991-06-05 Dow Corning Toray Silicone Company, Limited Method for neutralizing acids in organopolysiloxanes
EP0430253A3 (en) * 1989-11-30 1991-12-18 Dow Corning Toray Silicone Company, Limited Method for neutralizing acids in organopolysiloxanes
GB2315756A (en) * 1996-07-30 1998-02-11 Gen Electric Process for preparing hydrogen siloxane copolymers
GB2315756B (en) * 1996-07-30 2001-01-17 Gen Electric Process for preparing hydrogen siloxane copolymers

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