Multiphasic polymer as a thickening and suspending agent
US10470994B2 · kind B2 · utility
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3References
21Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 30, 2015 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Jul 2, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/48
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to multiphasic polymers comprising from 45% to 95% by weight of a first polymer P1 and from 5% to 55% by weight of a second polymer P2, said polymers P1 and P2 being of distinct compositions, It also relates to a method for the preparation of these polymers, to aqueous compositions comprising them and to their use as thickening and suspending agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.