GB573960A - Process for the production of organo silicon polymers - Google Patents
Process for the production of organo silicon polymersInfo
- 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
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
- C08G77/06—Preparatory 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.
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)
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 |
-
1943
- 1943-04-22 GB GB650643A patent/GB573960A/en not_active Expired
Cited By (6)
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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