Method for producing microcapsules and photosensitive microcapsules produced thereby
US4977060A · kind A · utility
30Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1989 |
| Grant date | Dec 11, 1990 |
| Priority date | — |
| Expiry date | Dec 7, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2985
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing microcapsules comprising the steps of: adding a hydroxy or amine functionalized acrylic resin or copolymer to an aqueous emulsion including a dispersed internal phase composition; PA0 simultaneously or subsequently adding a formaldehyde condensate prepolymer to said emulsion; and PA0 forming interpenetrating polymer network microcapsule walls around said internal phase, said interpenetrating polymer network microcapsule walls comprising the condensation reaction product of said functionalized acrylic resin or copolymer and said formaldehyde condensate prepolymer is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.