GB1024647A - Nitrosourethane blowing agents and process of producing foamed material therewith - Google Patents
Nitrosourethane blowing agents and process of producing foamed material therewithInfo
- Publication number
- GB1024647A GB1024647A GB3475562A GB3475562A GB1024647A GB 1024647 A GB1024647 A GB 1024647A GB 3475562 A GB3475562 A GB 3475562A GB 3475562 A GB3475562 A GB 3475562A GB 1024647 A GB1024647 A GB 1024647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radicals
- formula
- represent
- alkyl
- carbon atoms
- 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)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Foamed materials including sponge rubber, moss rubber cords and other porous packing cords are prepared by blowing natural rubber; synthetic rubbers based on silicones, butadiene, chlorobutadiene or isoprene polymers, diolefin copolymers with styrene and acryloni trile, ethylene/vinylacetate polymers and polyvinyl chloride/nitrilo rubber blends; polyvinyl chloride and polystyrene with nitrosourethanes of the formula <FORM:1024647/C3/1> wherein R, R1, R2, R3, R5 and R6 represent alkyl or cycloalkyl radicals having up to 6 carbon atoms, R, R1, R5 and R6 may also represent hydrogen and R and R1 may also represent hydroxyalkyl radicals or radicals of the formula <FORM:1024647/C3/2> (in which R4 represents an alkyl or cycloalkyl radical having up to 6 carbon atoms), a and b are 1,2 or 3, and X represents a direct linkage or a heteroatom (e.g. O, S or N), alone or in conjunction with plasticizers and sulphonic acid esters.ALSO:The invention comprises nitrosourethanes of the formula <FORM:1024647/C2/1> wherein R, R1, R2, R3, R5 and R6 represent alkyl or cycloalkyl radicals having up to 6 carbon atoms, R, R1, R5 and R6 may also represent hydrogen and R and R1 may also represent hydroxyalkyl radicals or radicals of the formula <FORM:1024647/C2/2> (in which R4 represents an alkyl or cycloalkyl radical having up to 6 carbon atoms), a and b are 1, 2 or 3, and X represents a direct linkage or a hetero atom, for instance O, S or N (which may either bear a hydrogen atom or an alkyl substituent). The above nitrosourethanes are prepared by reacting appropriate glycols or polyalcohols with appropriate isocyanates, or by reacting appropriate di- or polychlorocarbonic acid esters with appropriate primary amines to form urethane intermediates, which are then nitrosated with nitrous acid.ALSO:Foamed coated materials are prepared by brushing paper, or fabrics having a base coating, with a polyvinylchloride paste containing a nitrosourethane blowing agent of the formula:- <FORM:1024647/B1-B2/1> together with specified fillers, plasticizers, stabilizers and pigments, and subsequently heating to a temperature of between 125-175 DEG C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0034899 | 1961-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1024647A true GB1024647A (en) | 1966-03-30 |
Family
ID=7095768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3475562A Expired GB1024647A (en) | 1961-09-11 | 1962-09-11 | Nitrosourethane blowing agents and process of producing foamed material therewith |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1494021A1 (en) |
| GB (1) | GB1024647A (en) |
-
1961
- 1961-09-11 DE DE19611494021 patent/DE1494021A1/en active Pending
-
1962
- 1962-09-11 GB GB3475562A patent/GB1024647A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1494021A1 (en) | 1969-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB910309A (en) | Rubber compositions | |
| GB833416A (en) | Method of making suede-like plastic sheeting | |
| GB841156A (en) | Improvements in siliceous rubber reinforcing pigments and in rubber compositions reinforced therewith | |
| GB692142A (en) | Improvements in or relating to the manufacture of expanded thermoplastics | |
| GB1024647A (en) | Nitrosourethane blowing agents and process of producing foamed material therewith | |
| GB809732A (en) | Improvements in manufacture of n-alkyl-and n-cycloalkylbis-(2-benzothiazolesulphen)amides | |
| GB877324A (en) | Boron nitrogen polymers | |
| GB828643A (en) | Improvements in latex sponge rubber | |
| GB969657A (en) | Production and use of nitrosoanilinonitroalkanes | |
| SE7500360L (en) | ||
| GB711236A (en) | Improvements in or relating to process of vulcanizing rubber and the vulcanized rubber resulting from the said process | |
| KR840002427A (en) | Process for preparing low density nonflammable polyvinyl foam composition | |
| GB811140A (en) | Vulcanisation of synthetic rubbery copolymers of butadiene and styrene | |
| GB841688A (en) | Substituted mercaptobenzothiazoles | |
| GB925045A (en) | Fabric covered cellular cushioning article and manufacture thereof | |
| GB958632A (en) | Hot treatment of isobutylene-isoprene copolymers | |
| ES450563A1 (en) | Process for the manufacture of crosslinkable polymers and copolymers | |
| ES474473A1 (en) | Making undercut mouldings. | |
| GB1338195A (en) | Process for the vulcanisation of natural or synthetic rubber | |
| GB869247A (en) | The stabilisation of vulcanisable foams | |
| GB807405A (en) | Chemical compositions useful as blowing agents | |
| GB766429A (en) | Improvements in polyvinyl chloride resins | |
| GB1130547A (en) | Process for the vulcanisation of rubber | |
| GB805742A (en) | Accelerators of vulcanization of rubber | |
| JPS553402A (en) | Manufacture of vinyl chloride foam |