Wet strength resins
US4391878A · kind A · utility
31Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 24, 1981 |
| Grant date | Jul 5, 1983 |
| Priority date | — |
| Expiry date | Jul 24, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31783
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Water soluble wet strength resins containing maleamic acid and at least one other ethylenically unsaturated monomer, such as vinyl esters, olefins, acrylic and/or methyacrylic acids and/or their esters and/or their amindes are useful in the preparation of paper products having improved, off-machine dry strength and wet strength properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.