Method for treating paper with a composition containing hydantoin compounds and a copolymer
US4144120A · kind A · utility
5Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1977 |
| Grant date | Mar 13, 1979 |
| Priority date | — |
| Expiry date | Jun 14, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31996
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A composition for the treatment of paper which improves the wet strength of paper is provided. This composition contains PA1 (a) a water-soluble mono- or binuclear hydantoin compound containing glycidyl groups, and PA1 (b) a water-soluble copolymer of maleic acid or of one of its derivatives such as maleic anhydride and of a further ethylenically unsaturated copolymerizable comonomer with 2 to 20 carbon atoms such as vinyl methyl ether, dec-1-ene, styrene and/or ethylene or a water-soluble salt of such a copolymer. Also a process for the treatment, preferably the surface treatment of paper with the above composition is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.