Layered adhesive construct
US9248214B2 · kind B2 · utility
8Cited by
2References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2014 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Mar 10, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A layered adhesive construct includes a backing layer and a layer of a pressure sensitive, hot melt processable adhesive composition. The adhesive composition includes a polar plasticizing oil or a combination of polar plasticizing oils in a content above 10% (w/w), and 10-50% (w/w) of a polar polyethylene copolymer. The polyethylene copolymer has a melt flow index below 2 g/10 min (190° C./21.1N), and the polar plasticizing oil is a liquid rosin derivative, animal oils and derivatives, esters, ethers, glycols, poly propylene oxide, or alpha-butoxy-polyoxypropylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.