Polymers, preparation and use

Details Polymers, preparation and use Polymers, preparation and use

1981-12-11

1984-05-29

Wong, Jr., Harry

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

424 78, 5253267, 526287, 526312, C08F21000

Patent

active

044516240

ABSTRACT:
Polymers containing 55 to 90% of units of the formula (A): ##STR1## wherein R.sup.1 is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms; and 10 to 45% of units of the formula (B) and (C): ##STR2## wherein R.sup.2 is a hydrogen group of 5 to 19 carbon atoms, for example n-C.sub.11 H.sub.23, R.sup.3 is a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, R.sup.4 is a hydrocarbon group of 5 to 19 carbon atoms, for example n-C.sub.11 H.sub.23 and X.sup.- is an anion and which contain at least 10% of units of formula (C) and are free from polymeric species having a molecular weight of less than 10,000 are described. The polymers possess antimicrobial activity agains common pathogens. Isotonic aqueous solutions containing 0.002 to 0.025% of the polymer are suitable for the sterilization of contact lenses for example by immersion of the lens in the solution overnight. Hydrophilic ointments containing from 0.002 to 0.25% of the polymer are suitable for the treatment of bacterial infection of lesions of the skin such as burns and ulcers.

REFERENCES:
patent: 3515707 (1970-06-01), Reimschuessel et al.
patent: 3539684 (1970-11-01), Hoover
patent: 3551384 (1970-12-01), Zelt
patent: 3840504 (1974-10-01), Keim
patent: 3912693 (1975-10-01), Shimizo et al.
patent: 4026945 (1977-05-01), Green et al.
patent: 4304894 (1981-12-01), Andrews

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