Slip coated thermoplastic films
US4956241A · kind A · utility
17Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1988 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Dec 30, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A slip-coated thermoplastic film is disclosed wherein the slip coating applied is essentially an aqueous wax emulsion. The wax emulsion is preferably applied to a thermoplastic film such as polypropylene between the machine direction and transverse direction stretching process. The resultant slip-coated film has low haze, non-blocking, and consistently low coefficient of friction for good machinability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.