Foam product for recreational products
US5275860A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | May 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249993
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to surf boards and bodyboards and the like used for water sports and wherein the board includes a core foam which is a closed pore or closed cell foam to which is directly bonded an upper and lower skin. To achieve a substantially high integrity bond, an intermediate layer is used composed of a mixture of the polymeric material of the foam and the different polymeric material of the skins. The foam may be polypropylene expanded bead foam while the skins may be of high density polyethylene. Procedures are also disclosed for forming such products as well as procedures for providing rocker, an important characteristic of such boards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.