Method of producing polyurethane pads produced therewith
US7175915B2 · kind B2 · utility
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4References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 13, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Apr 13, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31587
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of producing polyurethane pads and other articles has the steps of providing at least one polyurethane layer having a first curing agent, providing a second polymer layer having a second curing agent, providing a connecting layer between the first and second layers with the first curing agent as in the first polyurethane layer, and subjected the layers to a thermal treatment so that the same first curing agent migrates from the connecting layer to the first polyurethane layer and vice versa. Also, an article produced by the method is proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.