Laminated material for hot and cold cups and its manufacturing method
US4937110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1988 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Jul 21, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3188
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a laminated material for cups good for both hot and cold drinks comprising a base material and a resin layer laminated thereon, wherein the melting point of the aforementioned resin layer is not less than 95.degree. C. when measured by DSC, the difference .DELTA..theta. between the advancing contact angle (.theta.a) and the receding contact angle (.theta.r) for water is not more than 20.degree., and the resin layer has a heat sealability. According to the present invention, a laminated material for cups good for both hot and cold drinks can be provided, these cups being also excellent in bubble-arresting property and sliding property as well as vending property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.