Microporous waterproof and moisture vapor permeable structures, processes of manufacture and useful articles thereof
US5157058A · kind A · utility
36Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Jun 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/903
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Microporous waterproof and moisture vapor permeable products are described which are formed from a matrix having an internal microstructure which is coated with a hydrophobic material. A process is described including the steps of (1) applying to the surface of the matrix a liquid hydrophobic material, (2) allowing the liquid to penetrate into the microstructure and then (3) drying, vulcanizing or curing the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.