Compositions of ethylene/α-olefin multi-block interpolymer for blown films with high hot tack
US7582716B2 · kind B2 · utility
68Cited by
43References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Jul 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to film layers and compositions having improved hot tack properties. The compositions comprise at least one ethylene/α-olefin interpolymer, wherein the ethylene/α-olefin interpolymer may have, for example, a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship:Tm>−2002.9+4538.5(d)−2422.2(d)2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.