GB949581A - Expanded resinous materials - Google Patents
Expanded resinous materialsInfo
- Publication number
- GB949581A GB949581A GB538261A GB538261A GB949581A GB 949581 A GB949581 A GB 949581A GB 538261 A GB538261 A GB 538261A GB 538261 A GB538261 A GB 538261A GB 949581 A GB949581 A GB 949581A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nylon
- mixture
- blowing agent
- powdered
- heated
- 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
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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)
Abstract
A process for making expanded nylon-11 comprises forming a mixture comprising powdered nylon-11 and a powdered blowing agent and heating the mixture to a temperature at which the blowing agent decomposes. The heating may be effected in a mould, in which case the decomposition temperature of the blowing agent is selected to have a value of 10-50 DEG C. above the melting point of the nylon-11. The process may also take the form of coating a metal object by heating it to a temperature above the decomposition temperature of the blowing agent and dipping it into a mixture of powdered nylon-11 and powdered blowing agent. In examples (1) a mixture of nylon-11 (m.p. 186 DEG C.) and azodicarbonamide is heated at 200 to 210 DEG C. to give a foam suitable for oil-impregnated bushes or bearings; (2) a piece of aluminium heated to 450 DEG C. is dipped into a mixture of nylon-11 and trihydrazinotriazine. A coating of blown nylon forms on the surface.ALSO:A process for coating metal objects with expanded nylon-11 comprises dipping the heated object into a mixture comprising powdered nylon-11 and powdered blowing agent, the metal having been heated to a temperature at which the blowing agent decomposes and in excess of the melting point of nylon-11. In Example (2) a piece of aluminium heated to 450 DEG C. is dipped into a mixture of nylon-11 and trihydrazinotriazine. A coating of blown nylon-11 forms on the surface. The mixture may be formed into a fluidized bed prior to dipping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB538261A GB949581A (en) | 1961-02-14 | 1961-02-14 | Expanded resinous materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB538261A GB949581A (en) | 1961-02-14 | 1961-02-14 | Expanded resinous materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB949581A true GB949581A (en) | 1964-02-12 |
Family
ID=9795096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB538261A Expired GB949581A (en) | 1961-02-14 | 1961-02-14 | Expanded resinous materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB949581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148742A (en) * | 1983-10-27 | 1985-06-05 | Rogers Corp | Matrix coating system and method of manufacture thereof |
-
1961
- 1961-02-14 GB GB538261A patent/GB949581A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2148742A (en) * | 1983-10-27 | 1985-06-05 | Rogers Corp | Matrix coating system and method of manufacture thereof |
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