GB973476A - Improvements in or relating to olefin oxide polymers - Google Patents
Improvements in or relating to olefin oxide polymersInfo
- Publication number
- GB973476A GB973476A GB4190961A GB4190961A GB973476A GB 973476 A GB973476 A GB 973476A GB 4190961 A GB4190961 A GB 4190961A GB 4190961 A GB4190961 A GB 4190961A GB 973476 A GB973476 A GB 973476A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxide
- film
- polymer
- compressive force
- olefine
- 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
-
- 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
- B29C67/0011—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping plates or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Nonwoven Fabrics (AREA)
Abstract
973,476. Films of olefine oxide polymers. UNION CARBIDE CORPORATION. Nov. 23, 1961 [Dec. 8, 1960], No. 41909/61, Heading B5B. The stress endurance of a film comprised essentially of olefine oxide polymer is improved by subjecting the film, while at a temperature below the melting-point or first order transition to simultaneous application of compressive force and concentric shearing action. The latter is defined as the shearing force exerted between adjacent layers of a film when it is passed between converging rolls. The compressive force is of such magnitude as to cause substantial flow of polymer in a plane perpendicular to the direction of the applied compressive force, thus causing a reduction of film thickness, e.g. of from one-tenth to one half. The forces of compression, shear and the tension resulting therefrom, may be applied by a process of cold-rolling wherein a web of film is passed between the nip of adjacent cylindrical metal rolls. The polymer may be a homopolymer of e.g. ethylene oxide, or a copolymer, e.g. a copolymer comprised of at least 50% of ethylene oxide and up to 50% of either propylene oxide or butylene oxide. In examples, poly(ethylene oxide) films are cold-rolled at 10-25‹ C. The process may also be applied to wires, yarns and filaments coated with a polymeric olefine oxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7445360A | 1960-12-08 | 1960-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB973476A true GB973476A (en) | 1964-10-28 |
Family
ID=22119639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4190961A Expired GB973476A (en) | 1960-12-08 | 1961-11-23 | Improvements in or relating to olefin oxide polymers |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB973476A (en) |
| NL (1) | NL272326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3465070A (en) * | 1966-05-20 | 1969-09-02 | Union Carbide Corp | Method of producing thermoplastic film characterized by improved properties |
| US4514351A (en) * | 1981-08-27 | 1985-04-30 | Deutsche Solvay Werke Gmbh | Process for the manufacture of articles of high mechanical strength from thermoplastic synthetic resins |
-
0
- NL NL272326D patent/NL272326A/xx unknown
-
1961
- 1961-11-23 GB GB4190961A patent/GB973476A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3465070A (en) * | 1966-05-20 | 1969-09-02 | Union Carbide Corp | Method of producing thermoplastic film characterized by improved properties |
| US4514351A (en) * | 1981-08-27 | 1985-04-30 | Deutsche Solvay Werke Gmbh | Process for the manufacture of articles of high mechanical strength from thermoplastic synthetic resins |
Also Published As
| Publication number | Publication date |
|---|---|
| NL272326A (en) |
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