Weatherable, thermostable polymers having improved flow composition
US7838602B2 · kind B2 · utility
4Cited by
79References
26Claims
0Family size
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Key dates
| Filing date | Jan 26, 2007 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Sep 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A multilayer article comprises a substrate layer, and a coating layer in contiguous superposed contact with the substrate layer, the coating layer comprising a thermostable, weatherable polymer comprising structural units derived from at least one 1,3-dihydroxybenzene moiety, at least one aromatic dicarboxylic acid moiety, at least one bisphenol moiety, and at least one soft-block moiety derived from a siloxane oligomer, in which the multilayer article comprises the substrate layer and the coating layer, or the substrate layer with coating layers on each side of the substrate layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.