Thermoplastic olefin polymer blend and adhesive films made therefrom
US7939169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2007 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | May 17, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a multilayer film having: (A) an adhesive layer comprising at least about 40 weight percent of an ethylene/alkyl acrylate copolymer and at least about 20 weight percent of a low density polyethylene, and at most about 7 weight percent filler; (C) a barrier layer comprising at least about 90 weight percent high density polyethylene; and (B) a core layer comprising at least about 20 weight percent linear low density polyethylene, at least about 20 weight percent low density polyethylene, at least about 10 weight percent high density polyethylene and at most about 5 weight percent filler. Such a film is useful to protect surfaces and preferably adheres when needed for protection and is removable after protection is no longer desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.