Paper coating composition containing a pigment, a polymer in the form of an aqueous dispersion and another polymer which is soluble in water
US4157995A · kind A · utility
11Cited by
2References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 16, 1978 |
| Grant date | Jun 12, 1979 |
| Priority date | — |
| Expiry date | Jan 16, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H19/56
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved paper coating composition containing, per 100 parts by weight of finely divided pigment, from 5 to 25 parts by weight of a copolymer A having a glass transition temperature of from -40.degree. to +50.degree. C. in the form of an aqueous dispersion and from 0.1 to 10 parts by weight of a high molecular weight polymer B which is obtained by polymerizing water-soluble ethylenically unsaturated monomers in a water-in-oil emulsion. Papers having improved water resistance are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.