GB573960A - Process for the production of organo silicon polymers - Google Patents

Process for the production of organo silicon polymers

Info

Publication number
GB573960A
GB573960A GB650643A GB650643A GB573960A GB 573960 A GB573960 A GB 573960A GB 650643 A GB650643 A GB 650643A GB 650643 A GB650643 A GB 650643A GB 573960 A GB573960 A GB 573960A
Authority
GB
United Kingdom
Prior art keywords
trimethoxy silicane
acid
silicanes
methoxy
hydrolysis
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
GB650643A
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.)
Revertex Ltd
Original Assignee
Revertex 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 Revertex Ltd filed Critical Revertex Ltd
Priority to GB650643A priority Critical patent/GB573960A/en
Publication of GB573960A publication Critical patent/GB573960A/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
    • C08G77/04Polysiloxanes
    • C08G77/06Preparatory processes

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

Organo-silicon resins are obtained by hydrolysis with water, followed by further heat treatment if desired, of methoxy silicanes, which may be produced as described in Specification 573,906. In examples: (1) 10 gs. phenyl trimethoxy silicane are refluxed for 10 mins. with aqueous hydrochloric acid; a viscous oil is obtained which on baking at 250-350 DEG C. yields a hard glossy product; (5) a solution of equal parts of phenyl trimethoxy silicane and isoamyl trimethoxy silicane in benzene was shaken in 120 c.c. normal hydrochloric acid an oily material was obtained on evaporation of the solvent. Alkaline or acid media may be used or the hydrolysis may be carried out first in acid and then in alkaline medium (9) a mixture of methoxy and ethoxy silicanes is used. Solvents specified are benzene, tetrahydrofurane.
GB650643A 1943-04-22 1943-04-22 Process for the production of organo silicon polymers Expired GB573960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB650643A GB573960A (en) 1943-04-22 1943-04-22 Process for the production of organo silicon polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB650643A GB573960A (en) 1943-04-22 1943-04-22 Process for the production of organo silicon polymers

Publications (1)

Publication Number Publication Date
GB573960A true GB573960A (en) 1945-12-14

Family

ID=9815751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB650643A Expired GB573960A (en) 1943-04-22 1943-04-22 Process for the production of organo silicon polymers

Country Status (1)

Country Link
GB (1) GB573960A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521674A (en) * 1947-03-29 1950-09-12 Dow Chemical Co Process of preparing organosiloxane resins
US2521678A (en) * 1947-03-29 1950-09-12 Dow Chemical Co Process of preparing organopolysiloxane resins
US2571533A (en) * 1947-03-29 1951-10-16 Dow Chemical Co Method for preparing heat-hardenable organopolysiloxane resins
US2679496A (en) * 1954-05-25 Production of organosilicon
US2749326A (en) * 1951-11-01 1956-06-05 Diamond Alkali Co Phenyl ethyl siloxane composition and method of preparing same
DE4142678A1 (en) * 1991-01-11 1992-07-16 Goldschmidt Ag Th Curable organo-polysiloxane resin(s) aq. emulsion prepn. - involves controlling partial hydrolysis of alkoxy-organo-siloxane(s) in presence of acid catalyst, followed by emulsification

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679496A (en) * 1954-05-25 Production of organosilicon
US2521674A (en) * 1947-03-29 1950-09-12 Dow Chemical Co Process of preparing organosiloxane resins
US2521678A (en) * 1947-03-29 1950-09-12 Dow Chemical Co Process of preparing organopolysiloxane resins
US2571533A (en) * 1947-03-29 1951-10-16 Dow Chemical Co Method for preparing heat-hardenable organopolysiloxane resins
US2749326A (en) * 1951-11-01 1956-06-05 Diamond Alkali Co Phenyl ethyl siloxane composition and method of preparing same
DE4142678A1 (en) * 1991-01-11 1992-07-16 Goldschmidt Ag Th Curable organo-polysiloxane resin(s) aq. emulsion prepn. - involves controlling partial hydrolysis of alkoxy-organo-siloxane(s) in presence of acid catalyst, followed by emulsification

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