Patent · US Active

Release films via solventless extrusion processes

US9187678B2 · kind B2 · utility

14Cited by
15References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 29, 2013
Grant dateNov 17, 2015
Priority date
Expiry dateDec 24, 2033

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31663
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Described herein are release layers formed via solventless extrusion. The release layers include a polyolefin and an alkyl dimethicone. The release layers exhibit tailorable release properties from pressure-sensitive adhesives. The release layers are simple to make and require no post-treatment in order to impart the observed release properties. The release layers are adaptable to multilayer extrusion, blown film formation, and cast film formation techniques.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.