Semicrystalline manufactured articles made of syndiotactic poly-p-methylstyrene (s-PpMS)
US5468823A · kind A · utility
1Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1993 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Feb 12, 2013 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Semicrystalline manufactured articles made of syndiotactic poly-p-methylstyrene (s-PpMS) in a crystalline form having a high melting point (225.degree. C.), and processes for the preparation thereof. Processes for preparing semicrystalline manufactured articles (semi-finished products, formed articles, fibers, films, etc.) made of s-PpMS in its different crystalline forms by exposure of amorphous manufactured articles to suitable solvents and by subsequent thermomechanical treatments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.