Mineral paper coating compositions containing latex and amphoteric polymer
US4054717A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1975 |
| Grant date | Oct 18, 1977 |
| Priority date | — |
| Expiry date | Nov 19, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31993
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Mineral coating compositions for coating papers, the binder of which comprises a negatively-charged latex or an aqueous dispersion of an emulsion polymer, with or without an amylaceous binder, as the major portion thereof, and a relatively small amount of a water-soluble addition polymer having polymerized therein from 20% to 100%, preferably at least 40%, by weight of a monoethylenically unsaturated monomer having a primary, secondary, or tertiary amine group, such as an aminoalkyl acrylate, methacrylate, vinyl ether or vinyl sulfide, an N-aminoalkyl(meth)acrylamide, an N-acryloxyalkyl-oxazolidine or an N-acryloxyalkyl-tetrahydro-1,3-oxazine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.