Barrier coating of a non-butyl elastomer and a dispersed layered filler in a liquid carrier and coated articles
US7078453B1 · kind B1 · utility
22Cited by
31References
36Claims
0Family size
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Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Aug 10, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/016
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Barrier coating mixtures include (a) a non-butyl elastomeric polymer; (b) an acid or base treated dispersed, substantially exfoliated silicate filler material that has not been functionalized with organic cations having an aspect ratio greater than 25; and (c) at least one additive, wherein the total solids content is less than 30% and the amount of filler is between 5% to about 60% of the total solids content. The coating retains its permeability properties under strain and has a strain to first damage of at least 5% biaxial elongation at 0% RH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.