GB958570A - New silicone rubber stocks - Google Patents
New silicone rubber stocksInfo
- Publication number
- GB958570A GB958570A GB3306860A GB3306860A GB958570A GB 958570 A GB958570 A GB 958570A GB 3306860 A GB3306860 A GB 3306860A GB 3306860 A GB3306860 A GB 3306860A GB 958570 A GB958570 A GB 958570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radicals
- mol
- vinyl
- units
- silicone rubber
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Tertiary-butyl cumyl peroxide is used as vulcanising agent for rubber-forming siloxanes comprising at least 95% mol of R2SiO units and up to 5% mol of RSiO 3/2 and/or R3SiO 1/2 units, in which each R is a monovalent hydrocarbon or halohydrocarbon radical, at least 75% of the radicals being lower alkyl or haloalkyl radicals and sufficient radicals being vinyl radicals so as to give a vinyl: Si ratio of from 0.0002:1 to 0.05:1. Fillers usually added are: silicas (natural, fume, aerogels and xerogels), oxides of Ti, Fe and Zn, Al and Zn silicates, CaCO3, glass frit and C black. Pigments, plasticizers, compression set additives &c., may also be added. The compositions can be cured at atmospheric pressure at temperatures of at least 100 DEG C. Examples are given. Uses: for making gaskets, electrical insulation and baby bottle nipples; and for vibration damping and extrusions. U.S.A. Specifications 2,460,795 and 2,481,052 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEW26444A DE1117873B (en) | 1959-09-24 | 1959-09-24 | Process for the preparation of organopolysiloxane elastomers by curing organopolysiloxanes containing vinyl groups in the presence of diorganoperoxides |
Publications (1)
Publication Number | Publication Date |
---|---|
GB958570A true GB958570A (en) | 1964-05-21 |
Family
ID=7598351
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3306860A Expired GB958570A (en) | 1959-09-24 | 1960-09-26 | New silicone rubber stocks |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1117873B (en) |
GB (1) | GB958570A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0449651A1 (en) * | 1990-03-29 | 1991-10-02 | Shin-Etsu Chemical Co., Ltd. | Silicone rubber composition and its manufacture |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2816089A (en) * | 1955-03-25 | 1957-12-10 | Hercules Powder Co Ltd | Vulcanizable polysiloxane compositions containing a diaralkyl peroxide and process |
-
1959
- 1959-09-24 DE DEW26444A patent/DE1117873B/en active Pending
-
1960
- 1960-09-26 GB GB3306860A patent/GB958570A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0449651A1 (en) * | 1990-03-29 | 1991-10-02 | Shin-Etsu Chemical Co., Ltd. | Silicone rubber composition and its manufacture |
US5194479A (en) * | 1990-03-29 | 1993-03-16 | Shin-Etsu Chemical Co., Ltd. | Silicone rubber composition and its manufacture |
Also Published As
Publication number | Publication date |
---|---|
DE1117873B (en) | 1961-11-23 |
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