Method and composition for dispersing hydrophobic particles in aqueous suspensions
US6524435B1 · kind B1 · utility
3Cited by
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6Claims
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Key dates
| Filing date | May 8, 2000 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | May 8, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H11/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of dispersing hydrophobic particles in aqueous suspensions comprising adding to the suspension an effective amount of an ethylene oxide-propylene oxide block copolymer, wherein the copolymer has a molecular weight of from about 1,000 to about 50,000 and a HLB of from about 1 to about 4 and compositions comprising the ethylene oxide-propylene oxide block copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.