| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Mfg process; by providing a water-in-oil emulsion comprising - Mixt of oil-soluble vinyl monomer & multifunctional unsatd. crosslinking monomer (2-70%) - Water (> 90% based on emulsion) as internal phase - Sorbitan fatty acid ester surfactant - Quaternary salt having > 8 C - Polymn initiator As next steps - Curing monomers to polymerize & crosslink monomers - Partial removal of water |
| PATENT PHOTOCOPY | Available on request |
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