Foaming methods for making cellular thermoplastic materials
US8357319B2 · kind B2 · utility
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25References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Dec 7, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249979
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods for reducing the density of thermoplastic materials and the articles made therefrom having similar or improved mechanical properties to the solid or noncellular material. Also disclosed are improvements to foaming methods and the cellular structures of the foams made therefrom, and methods for altering the impact strength of solid or noncellular thermoplastic materials and the shaping of the materials into useful articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.