GB502759A - Improvements in or relating to gas expanded rubber substitutes and methods of producing the same - Google Patents
Improvements in or relating to gas expanded rubber substitutes and methods of producing the sameInfo
- Publication number
- GB502759A GB502759A GB1206/38A GB120638A GB502759A GB 502759 A GB502759 A GB 502759A GB 1206/38 A GB1206/38 A GB 1206/38A GB 120638 A GB120638 A GB 120638A GB 502759 A GB502759 A GB 502759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rubber
- cellular
- gassing
- porous
- heating
- 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
- C08J9/12—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 physical blowing agent
- C08J9/122—Hydrogen, oxygen, CO2, nitrogen or noble gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
-
- 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
- C08J2321/00—Characterised by the use of unspecified rubbers
Landscapes
- 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)
- Mechanical Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
502,759. Porous or cellular synthetic resins; rubber. EXPANDED RUBBER CO., Ltd. Jan. 13, 1938, No. 1206. Convention date, July 9, 1937. [Class 70] [Also in Group IV] Rubber-like polymerization products of diolefines, isoprene, olefine polysulphide resins, rubber chloride and hydrochloride, capable of being plasticized, are rendered porous or cellular, by subjecting them to the action of an inert gas such as nitrogen under sufficient pressure (4,000 lb. per sq. in.) to effect penetration, and heating to expand the material and convert it into an unplasticizable state. Cellular material is produced by gassing at a raised temperature; cold gassing and subsequent heating without pressure, produces a porous mass. Plasticizers may be added to assist in forming the initial plastic mass. In an example, 2 chlor 1, 3 butadiene plasticizable polymer is milled as rapidly as possible with plasticizers and fillers, and placed in an autoclave into which nitrogen is forced at a pressure of 4,000 lb. per sq. in. The 'gassing may proceed for 1¢ hours at 200‹ F., or longer at a lower temperature. In the latter event, heating to 212-260‹ F., for 5-30 min. will polymerize the mass sufficiently to retain the gas and give a cellular structure. The mix is then placed in moulds and heated to produce expansion and complete the polymerization.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US502759XA | 1937-07-09 | 1937-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB502759A true GB502759A (en) | 1939-03-24 |
Family
ID=21964343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1206/38A Expired GB502759A (en) | 1937-07-09 | 1938-01-13 | Improvements in or relating to gas expanded rubber substitutes and methods of producing the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB502759A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2447055A (en) * | 1943-10-07 | 1948-08-17 | Expanded Rubber Co Ltd | Production of expanded plastic materials |
| US2447056A (en) * | 1943-10-05 | 1948-08-17 | Expanded Rubber Co Ltd | Manufacture of expanded thermoplastic materials |
-
1938
- 1938-01-13 GB GB1206/38A patent/GB502759A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2447056A (en) * | 1943-10-05 | 1948-08-17 | Expanded Rubber Co Ltd | Manufacture of expanded thermoplastic materials |
| US2447055A (en) * | 1943-10-07 | 1948-08-17 | Expanded Rubber Co Ltd | Production of expanded plastic materials |
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