Foam composite structure comprising a blend of polypropylene and homogeneous ethylene/alpha-olefin copolymer
US6492013B1 · kind B1 · utility
13Cited by
44References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 28, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A foam sheet including a blend of polypropylene and homogeneous ethylene/alpha-olefin copolymer, wherein the polypropylene is present in the blend at a weight percentage ranging from 70 to 95 and the homogeneous ethylene/alpha-olefin copolymer is present in the blend at a weight percentage ranging from 5 to 30. Foam composite structures in which the aforedescribed foam sheet is bonded to polyethylene and/or polypropylene foam sheets are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.