Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1983-04-13
1984-11-13
Meyers, Albert T.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253333, 525379, 525380, 525381, 5253267, 5253271, 5253282, 5253294, 521 27, 424 78, 424329, 526293, C08F11402, A01N 3312, C08F21402
Patent
active
044826800
ABSTRACT:
Polymeric quaternary ammonium compounds having recurring vinylbenzyl ammonium units are disclosed. The quaternary ammonium units preferably have 2 alkyl substituents of 1 to 4 carbons and 1 alkyl substituent of 4 to 12 carbons. These materials have antimicrobial properties and are particularly useful for preserving ophthalmic solutions.
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patent: 3963662 (1976-06-01), Fujiwara et al.
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Dawson Daniel J.
Sheldon Bernard G.
Weinshenker Ned M.
Wingard, Jr. Robert E.
Dynapol
Kilcoyne John M.
Meyers Albert T.
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