Thermoplastic article having high-relief surface
US6025069A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1998 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Jun 19, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2848
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a novel thermoplastic article having a high-relief, molded or embossed surface produced by contacting a laminate comprising a first or outer copolyester sheet material and a second or backing copolyester sheet material with heat and pressure using a heated element which simultaneously causes the material to be bonded and a high-relief, decorative appearance to be produced on at least one surface of the thermoplastic article. Also disclosed is an embossed or molded, bonded laminate comprising, in order, (1) a first or outer copolyester layer, (2) a second layer comprising a film which is colored or which bears an image or pattern, and (3) a third or backing copolyester layer, wherein the first and third layers are composed on the above-described copolyester. The copolyesters of the thermoplastic articles and laminates are selected from copolyesters having an inherent viscosity of 0.5 to 1.2 dL/g, when measured at 25.degree. C. using 0.50 grams of polymer per 100 mL of a solvent consisting of 60 weight percent phenol and 40 weight percent tetrachloroethane, comprising (i) diacid residues comprising at least 80 mole percent terephthalic acid residues; and (ii) diol residu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.