Method for producing skin-covered, expanded bead molded article
US10766166B2 · kind B2 · utility
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Key dates
| Filing date | Jul 7, 2015 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Nov 29, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for producing a skin-covered molded article including filling polypropylene-based resin expanded beads in a hollow space of a thermoplastic resin skin and feeding steam into the hollow space to fusion-bond the expanded beads together, the expanded beads showing specific DSC characteristics involving a specific high temperature peak(s) with specific heat of fusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.