Process for the prevention of scale formation in wood pulp production
US5441602A · kind A · utility
18Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1993 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | Aug 18, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Hydrolyzed copolymers of (A) maleic anhydride with (B) at least one mono-ethylenically unsaturated monomer other than acrylic acid or methacrylic acid or with a mixture of (B) and (C) acrylic acid or methacrylic acid are effective for inhibiting the formation of calcium carbonate scale in wood pulp production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.