Polymeric film exhibiting improved anti-blocking characteristics and process of making
US8158849B2 · kind B2 · utility
4Cited by
30References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Apr 28, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2007/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a film resistant to blocking including the steps of providing a polymeric film having a first and second surface, applying an anti-blocking agent in a fluid or molten state to at least the first surface of the polymeric film so as to form a treated film, gathering the treated film, and separating the gathered film so as to result in the detachment of at least some portion of the gathered film that was in contact with itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.