GB788599A - Improved silicone foamed resins - Google Patents
Improved silicone foamed resinsInfo
- Publication number
- GB788599A GB788599A GB21156/55A GB2115655A GB788599A GB 788599 A GB788599 A GB 788599A GB 21156/55 A GB21156/55 A GB 21156/55A GB 2115655 A GB2115655 A GB 2115655A GB 788599 A GB788599 A GB 788599A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resin
- dinitrosopentamethylenetetramine
- parts
- heating
- curing
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A foamed resin having a density of less than 50 pounds per cubic foot may be made by heating a composition consisting essentially of from 15 to 75 parts by weight of powdered aluminium per 100 parts of an alkyl polysiloxane resin having an average of from 1 to 1.6 total alkyl radicals containing less than 3 carbon atoms and phenyl radicals per silicon atom, a blowing agent and desirably a curing catalyst, at a temperature, e.g. from 30 DEG to 300 DEG C., sufficient to cause foaming of the resin and curing thereof. Blowing agents specified are sodium bicarbonate, p,p1-oxy-bis-(benzenesulphonylhydrazide), dinitrosopentamethylenetetramine, methylhydrogensiloxane and ethylhydrogensiloxane, these last two compounds being used in conjunction with a hydroxylated compound such as butanol or a silanol as described in Specification 788,598. Catalysts specified are dibutyl-tin-diacetate, lead 2-ethylhexoate, amines, alkali metal hydroxides, ferric chloride, and quaternary ammonium salts. In examples, foamed resins are made by heating specific siloxanes with aluminium powder, dinitrosopentamethylenetetramine and 2-ethylhexoic acid and with or without diatomaceous earth. Specifications 717,807 and 769,237 also are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US788599XA | 1954-10-04 | 1954-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB788599A true GB788599A (en) | 1958-01-02 |
Family
ID=22146630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21156/55A Expired GB788599A (en) | 1954-10-04 | 1955-07-21 | Improved silicone foamed resins |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB788599A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1109885B (en) * | 1960-02-10 | 1961-06-29 | Bayer Ag | Process for the production of phenylmethylsiloxane resin foams |
WO2023037271A1 (en) * | 2021-09-08 | 2023-03-16 | 3M Innovative Properties Company | Firm silicone rubber foam thermal insulation |
-
1955
- 1955-07-21 GB GB21156/55A patent/GB788599A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1109885B (en) * | 1960-02-10 | 1961-06-29 | Bayer Ag | Process for the production of phenylmethylsiloxane resin foams |
WO2023037271A1 (en) * | 2021-09-08 | 2023-03-16 | 3M Innovative Properties Company | Firm silicone rubber foam thermal insulation |
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