Process for the encapsulating of substances immiscible with water
US4003846A · kind A · utility
16Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1974 |
| Grant date | Jan 18, 1977 |
| Priority date | — |
| Expiry date | Nov 13, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the encapsulating of substances immiscible with water by dispersing the substance to be encapsulated in a distribution medium in the presence of a hydrate or bisulphite adduct of a polyacrolein or acrolein copolymer and reacting said hydrate or bisulphite adduct with a water-soluble, polyfunctional, monomeric or polymeric hydrophilic compound and, optionally, additionally with a curing agent or an aminoplast precondensate to form an insoluble capsule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.