Barrier coating mixtures containing non-elastomeric acrylic polymer with silicate filler and coated articles
US7473729B2 · kind B2 · utility
9Cited by
30References
44Claims
0Family size
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Key dates
| Filing date | Apr 22, 2005 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jan 18, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/016
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Barrier coating mixtures contain in a carrier liquid, (a) a non-elastomeric substantially polymerized acrylic polymer; (b) an exfoliated layered platelet-like silicate filler which has been acid treated and 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. Coated articles and containers, freestanding films and packaging films are produced using the barrier coating mixtures. Methods of manufacturing such coated products and coating mixtures are also encompassed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.