Polytetrafluoroethylene molded product in block form and method for production thereof
US6899932B1 · kind B1 · utility
1Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3154
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A block-shaped baked molded article having little block deformation amount is obtained in order to reduce a loss of materials until a stable film or sheet can be cut from a block-shaped molded article. After a polytetrafluoroethylene powder is compression-molded to form a preform, the resultant preform is baked while being rotated, thereby to produce a polytetrafluoroethylene molded article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.