Foamable polypropylene resin composition and molded body
US10106663B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jun 28, 2017 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A foamable polypropylene resin composition includes 10 parts by mass to 65 parts by mass of rubber or a thermoplastic elastomer, 18 parts by mass to 90 parts by mass of talc having a 50% particle diameter (D50) of 1 μm to 3 μm and surface-treated for increased dispersibility, 0.1 part by mass to 6.0 parts by mass of an organic crystal nucleating agent, and 5 parts by mass to 15 parts by mass of a foaming agent relative to 100 parts by mass of the polypropylene resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.