Methods of manufacturing embossed resinous products
US4022643A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 24, 1975 |
| Grant date | May 10, 1977 |
| Priority date | — |
| Expiry date | Dec 24, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249981
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of manufacturing an embossed resinous product having a textured surface which comprises: forming a potentially foamable resinous composition containing a blowing agent therein; heating the potentially foamable resinous composition to an elevated temperature to activate the blowing agent to cause blowing of the potentially foamable resinous composition; and then, before the freshly blown resinous composition has cooled to ambient or room temperature and while it is still relatively soft, mechanically embossing the freshly blown resinous composition under pressure by applying to its surface a previously blown, chemically embossed resinous product having a suitably textured surface; and cooling the freshly blown and now embossed resinous composition to yield an embossed resinous product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.