Process of producing foamed molding from expanded polypropylene resin beads
US7531116B2 · kind B2 · utility
1Cited by
25References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2002 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Jul 28, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process of producing a foamed molding, wherein expanded, substantially non-crosslinked polypropylene-based resin beads are heated in a mold to fuse-bond the beads together into a unitary body. Each of the expanded beads has been surface-modified with an organic peroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.