Aqueous-dispersed polymer compositions containing cyanoalkyl esters of unsaturated carboxylic acids
US5244968A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1988 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Mar 22, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H19/58
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Aqueous-dispersed polymer compositions are prepared comprising polymerized therein (a) monovinylidene aromatic monomer (e.g., styrene), (b) acyclic conjugated diene monomer (e.g., butadiene), and (c) ethylenically unsaturated carboxylic acid monomer(s) (e.g. acrylic and or fumaric acid) and are further benefited by polymerizing therein (d) a cyanoalkyl ester of an ethylenically unsaturated carboxylic acid. The aqueous-dispersed polymers can also comprise polymerized therein an ethylenically unsaturated nitrile monomer such as acrylonitrile. The use of the cyanoalkyl ester, such as 2-cyanoethylmethacrylate (2-CEMA), results in latex polymers with improved performance in paper coating formulations. In particular, paper coatings can be prepared which have improved performance (i.e., wet and dry pick resistance) in offset printing applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.