End-capped polymeric biguanides

Details End-capped polymeric biguanides End-capped polymeric biguanides

1995-09-19

1998-04-21

Truong, Duc

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

Synthetic resins

Nitrogen-containing reactant

528425, 523122, 523169, 524612, C08G 7300

Patent

active

057418861

ABSTRACT:
Linear, polymeric biguanides or salts thereof wherein the polymeric chain is terminated at the cyanoguanidine end group by a C.sub.2 -C.sub.90 primary or secondary amine which is optionally substituted with a functionality such as fluoride, chloride, bromide, iodide, nitro, hydroxyl, ether, sulfide, disulfide, sulfoxide or sulfone. The polymeric biguanides have a high level of biocidal activity accompanied by a low level of toxicity to host organisms and are therefore useful in bactericidal, algicidal and fungicidal compositions, especially in ophthalmic compositions.

REFERENCES:
patent: 2643232 (1953-06-01), Rose et al.
patent: 3428576 (1969-02-01), Dickinson et al.
patent: 4403078 (1983-09-01), McCoy et al.
patent: 4558159 (1985-12-01), McCoy et al.
patent: 4891423 (1990-01-01), Stockel

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