GB761721A - Improved dinitrosopentamethylenetetramine blowing agent compositions and cellular compositions prepared therewith - Google Patents
Improved dinitrosopentamethylenetetramine blowing agent compositions and cellular compositions prepared therewithInfo
- Publication number
- GB761721A GB761721A GB2504554A GB2504554A GB761721A GB 761721 A GB761721 A GB 761721A GB 2504554 A GB2504554 A GB 2504554A GB 2504554 A GB2504554 A GB 2504554A GB 761721 A GB761721 A GB 761721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dinitrosopentamethylenetetramine
- compounds
- hydroxyl group
- mixture
- blowing agent
- 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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/107—Nitroso compounds
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A blowing agent for use in preparing cellular synthetic rubbers and resins consists of dinitrosopentamethylenetetramine and a non-acidic organic activating compound therefor containing at least one hydroxyl group, or existing in tautomeric forms one of which contains at least one hydroxyl group, or a thio analogue of either of such compounds, or a mixture of two or more of such compounds and/or their thio analogues. Specified materials are butadienestyrene copolymer, neoprene, polyvinyl chloride and polyethylene-polyisobutylene mixture. The activating compound serves to lower the temperature of decomposition of the dinitrosopentamethylene tetramine and specified are urea, biuret, ethanolamine, tris - (hydroxy-methyl)-aminomethane, glycerine, ethylene glycol, diethylene glycol, methyl acetoacetate, acetamide, thiourea, sorbitan monolaurate, triethanolamine, monomethylolhydantoin, sorbitol, glucose, starch, cellulose, glycine anhydride, and dimethylolurea.ALSO:A blowing agent for use in preparing cellular rubber or synthetic plastic compositions consists of dinitrosopentamethylenetetramine and a non-acidic organic activating compound therefor containing at least one hydroxyl group, or existing in tautomeric forms one of which contains at least one hydroxyl group, or a thio analogue of either of such compounds, or a mixture of two or more of such compounds and/or their thio analogues. The activating compound serves to lower the temperature of decomposition of the dinitrosopentamethylenetetramine and may comprise 1, 2 glycols a carboxamide such as urea or biuret, or an amino alcohol such as ethanolamine or trio (hydroxy-methyl) aminomethane. In one example a rubber stock is prepared by milling together 100 parts pale crepe rubber, 7 parts 40 per cent dinitrosopentamethylenetetramine 60 per cent inert filler, 4 parts biuret, and vulcanizing and other ingredients. The composition is precured by steam heating in mould under pressure and finally cured by steam heating in a mould under atmospheric pressure. Other examples described concern the preparation of compositions comprising polyvinyl chloride, GRS and neoprene synthetic rubbers, and a polyethylene-polyiso-butylene mixture, respectively. As activating compounds are also mentioned, glycerine, diethylene glycol, ethylene glycol, methyl acetoacetate, acetamide, thiourea sorbitan monolaurate, triethanolamine, monomethylolhydantrin, sorbitol, glucose, starch, cellulose, glycine anhydride, and dimethylolurea.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US336642A US2754276A (en) | 1953-02-12 | 1953-02-12 | Cellular compositions utilizing dinitrosopentamethylene-tetramine as the blowing agent |
| DE1954P0012336 DE1001487B (en) | 1954-08-28 | 1954-07-17 | Propellant for the production of foam bodies |
| FR1105117D FR1105117A (en) | 1954-08-28 | 1954-07-22 | Cellular compositions |
| GB2504554A GB761721A (en) | 1954-08-28 | 1954-08-28 | Improved dinitrosopentamethylenetetramine blowing agent compositions and cellular compositions prepared therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2504554A GB761721A (en) | 1954-08-28 | 1954-08-28 | Improved dinitrosopentamethylenetetramine blowing agent compositions and cellular compositions prepared therewith |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB761721A true GB761721A (en) | 1956-11-21 |
Family
ID=10221326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2504554A Expired GB761721A (en) | 1953-02-12 | 1954-08-28 | Improved dinitrosopentamethylenetetramine blowing agent compositions and cellular compositions prepared therewith |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1001487B (en) |
| FR (1) | FR1105117A (en) |
| GB (1) | GB761721A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3712120A1 (en) * | 1986-04-22 | 1987-10-29 | Stiefel & Schuhvertrieb Gmbh | Process for producing a boot |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE891391C (en) * | 1942-07-17 | 1953-09-28 | Chemische Werke Huels Ges Mit | Process for the preparation of alkyl thioether groups in carboxylic acid esters containing carboxylic acid radicals |
| DE894162C (en) * | 1944-07-23 | 1953-10-22 | Roehm & Haas G M B H | Plasticizers for polymers or copolymers of amides of unsaturated carboxylic acids, especially methacrylic acid amide |
| US2496387A (en) * | 1946-02-06 | 1950-02-07 | Fink Arthur | Composition of matter suitable for dental liners |
| US2573701A (en) * | 1948-06-18 | 1951-11-06 | Edward M Filachione | Polyethylene glycol esters of acyloxycarboxylic acids |
-
1954
- 1954-07-17 DE DE1954P0012336 patent/DE1001487B/en active Pending
- 1954-07-22 FR FR1105117D patent/FR1105117A/en not_active Expired
- 1954-08-28 GB GB2504554A patent/GB761721A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3712120A1 (en) * | 1986-04-22 | 1987-10-29 | Stiefel & Schuhvertrieb Gmbh | Process for producing a boot |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1105117A (en) | 1955-11-28 |
| DE1001487B (en) | 1957-01-24 |
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