Layer composition
US4016326A · kind A · utility
Inventor
Key dates
| Filing date | Apr 1, 1975 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Apr 1, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31558
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A layer composition, which may be used for making shoes, upholstery or the like, comprising a carrier layer and a cover layer adhering thereto. The cover layer essentially consists of a synthetic resin material which bubbles are imbedded. The shells of the bubbles consists of a thermoplastic synthetic resin material other than the material of the cover layer. Preferably the shell of the bubbles consists of an elastic copolymer of polyvinylidene chloride and/or of a copolymer of polyvinyl chloride. The bubbles are bonded to the material of the cover layer and have hollow cores containing a gas, preferably air. The volume of the hollow cores amounts to at least 25%, preferably 50 to 85%, of the total volume of the cover layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.