Siloxane nonagglomerating antifoamants
US5837439A · kind A · utility
0Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | Mar 4, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/047
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a solution for forming silver halide emulsions comprising water, a gelatin containing less than 30 micromoles of methionine per gram of gelatin, and at least one antifoamant of Formula I EQU (H.sub.3 C).sub.3 Si--(OSi(CH.sub.3).sub.2).sub.m --OSi(CH.sub.3).sub.3 wherein m is the average number of dimethyl siloxane units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.