Method of manufacturing heat-resistant mould articles made of polyethylene terephthalate polyesters
US7993569B2 · kind B2 · utility
2Cited by
7References
6Claims
0Family size
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Inventors
Key dates
| Filing date | Aug 27, 2004 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Aug 13, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method of manufacturing high-melting-tension heat-resistant transparent or opaque sheets, boards, and molds from polyethylene terephthalate (PET). The method is characterized in that a mixture of:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.