Emulsion polymerization of methacrylonitrile as vehicle for vesicular photography and method of making and using same
US4654291A · kind A · utility
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11References
1Claims
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Key dates
| Filing date | Nov 22, 1985 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Nov 22, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C5/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved vesicular matrix prepared by employing regulated inner incompatibility to produce enhanced nucleation. The inner incompatibility is produced by copolymerizing a first monomer with a small amount of a second monomer wherein a homopolymer of the second monomer would be incompatible with a polymer of the first monomer, or by blending a first polymer or copolymer with a small amount of a highly incompatible second polymer or copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.