Composite layered sheet of film for refrigerators
US6589646B1 · kind B1 · utility
12Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249992
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composite layered sheet or composite layered film made from thermoplastics or thermoplastic mixtures comprises at least one substrate layer A) and at least one functional layer B) which comprises one or more blowing agents or nucleating agents, where the functional layer B) is thinner than the substrate layer A). A process for producing the sheet or film and a process for producing thermally insulating moldings are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.