Dissolving water soluble polymers
US4501828A · kind A · utility
51Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1983 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Jan 20, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S524/908
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
High molecular weight, water soluble polymers are dissolved to form liquid solutions at relatively low polymer concentrations and solid, water-plasticized composites at higher polymer concentrations by admixing finely divided polymer particles with ice particles at temperatures below, and preferably far below, the freezing point of water. The admixture is then allowed to warm causing the ice to melt and the polymer to dissolve in the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.