Fluropolymer resin coated member, a metal mold for forming polyester resin container made thereof and reproducing method of said metal mold
US8043677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Oct 7, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fluoropolymer resin coated member in which the fluoropolymer resin layer has been improved in wear resistance and peeling resistance. When the coated member is used to form a mold for polyester container molding, part of a polyester resin or an oligomer ingredient or additive contained in the polyester resin is prevented from depositing on the mold surface. And a polyester container with excellent luster and transparency can be manufactured. The fluoropolymer resin coated member (1) comprise a foundation (10) and a fluoropolymer resin layer (20) formed thereon, the foundation (10) having a surface roughness of 2 to 10 degree in Root-mean-square slope of profile, the amount of the fluoropolymer resin of the fluoropolymer resin layer (20) being 0.5-8.5 g/m2, and the surface roughness of the fluoropolymer resin layer being 5 degree or less in Root-mean-square slope of profile Δq2. The metal mold for forming polyester resin container can be reproduced in such a manner that amorphous fluoropolymer resin layer 20 applied on the hard surface of foundation 10 of the metal mold for forming polyester resin container is removed by abrasive to obtain mirror finish, then a new amorphous fluor…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.