Layered structures and articles prepared therefrom
US9487337B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 19, 2012 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Nov 19, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2896
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention provides a layered structure comprising at least two layers: A) a first layer A, formed from a composition A, comprising a polyurethane; and B) a second layer B, formed from a composition B, comprising at least one functionalized polymer B comprising the following: i) at least one polymerized monomeric unit comprising a functional group selected from the group consisting of the following: a) an acid group, b) an anhydride group, c) a primary or secondary amine group, and d) combinations thereof; or ii) at least one reacted functionalization agent comprising a functional group selected from the group consisting of the following: e) an acid group, f) an anhydride group, g) a primary or secondary amine group, and h) combinations thereof; or iii) combinations thereof; and wherein the functionalized polymer B has a number-average molecular weight greater than 1,000 g/mole, and/or a melt index (I2) less than, or equal to, 2500 g/10 min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.