Coated articles and methods for the preparation thereof
US4844983A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Jul 21, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31786
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Glass or plastics substrates which in use are susceptible to misting and which have on at least one surface thereof an antimist coating. The coating is formed from a hydrophilic polymer which comprises a hydrophilic polyurethane which contains from 35 to 60% by weight of water when hydrated and which has a thickness of from 3 .mu.m to 50 .mu.m in its anhydrous state. Substrates in which the coating comprises a first layer formed from a polyurethane which contains from 0 to 35% by weight of water when hydrated and in which a second and subsequent layers are formed from a polyurethane which contains 60 to 90% by weight of water are also described. Methods for forming the coatings are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.