Aqueous polymer composition for paper coating
US9051688B2 · kind B2 · utility
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3References
16Claims
0Family size
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Key dates
| Filing date | Nov 7, 2012 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Nov 7, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L33/14
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention concerns aqueous polymer compositions comprising a water soluble hydrophilic polymer with poly(ethylene oxide) content higher than 50% by weight and a polyacrylic thickener containing sulfonic groups. The aqueous polymer compositions of the invention are useful as deflocculants, rheology modifiers and water retention agents for paper coating compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.