FR2201332A1 - Swelling composition and imitation cork process - dinitrosopentamethylene-tetramine urea, wood flour with rubber giving fine holes plus random larger holes - Google Patents
Swelling composition and imitation cork process - dinitrosopentamethylene-tetramine urea, wood flour with rubber giving fine holes plus random larger holesInfo
- Publication number
- FR2201332A1 FR2201332A1 FR7234404A FR7234404A FR2201332A1 FR 2201332 A1 FR2201332 A1 FR 2201332A1 FR 7234404 A FR7234404 A FR 7234404A FR 7234404 A FR7234404 A FR 7234404A FR 2201332 A1 FR2201332 A1 FR 2201332A1
- Authority
- FR
- France
- Prior art keywords
- pts
- wood flour
- urea
- holes
- dinitrosopentamethylene
- 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.)
- Granted
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
- 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)
Abstract
Swelling compsn. contains a primary swelling agent based on N-dinitrosopentamethylenetetramine of particle size below 200 micron, a secondary swelling agent of particle size 0.3 to 2 mm and optionally wood flour. The preferred quantities are 0.5 to 15 pts., particularly 2-6 pts. of the primary agent, 0.1 to 8 pts. particularly 0.5 to 2 pts. of secondary agent and 0-100 pts. particularly 10-20 pts. of wood flour. The preferred secondary swelling agent is urea. A process for preparing vulcanisates with the appearance of cork comprises adding the above compsn. to natural or synthetic rubber, preferably using 2-6 pts. of primary swelling agent and 0.5 to 2 pts. of secondary swelling agent per 100 pts. rubber. Previous process using N-dinitrosopentamethylenetetramine only gives imitation cork with very fine uniformly distributed holes whereas the above also gives this together with a random distribution of much larger holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7234404A FR2201332A1 (en) | 1972-09-28 | 1972-09-28 | Swelling composition and imitation cork process - dinitrosopentamethylene-tetramine urea, wood flour with rubber giving fine holes plus random larger holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7234404A FR2201332A1 (en) | 1972-09-28 | 1972-09-28 | Swelling composition and imitation cork process - dinitrosopentamethylene-tetramine urea, wood flour with rubber giving fine holes plus random larger holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2201332A1 true FR2201332A1 (en) | 1974-04-26 |
| FR2201332B1 FR2201332B1 (en) | 1976-08-13 |
Family
ID=9104919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7234404A Granted FR2201332A1 (en) | 1972-09-28 | 1972-09-28 | Swelling composition and imitation cork process - dinitrosopentamethylene-tetramine urea, wood flour with rubber giving fine holes plus random larger holes |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2201332A1 (en) |
-
1972
- 1972-09-28 FR FR7234404A patent/FR2201332A1/en active Granted
Non-Patent Citations (1)
| Title |
|---|
| NEANT * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2201332B1 (en) | 1976-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |