Copolymers having bactericidal activity, process for the preparation thereof and pharmaceutical compositions therefrom

Claim 1

The method of treatment of a patient affected by infections of the skin of the type of pyrodermia, streptodermia, staphylodermia, acne, cutaneous mycosis, moniliasis, ulcerative gingivitis, sycosis barbae and ringworm of the feet; which consists of applying to the area of the patient affected by said infections of the skin a composition containing 0.1-5% of a compound of formula I ##STR5## wherein A is the starch or hydroxyethylcellulose unit, m is the degree of polymerization; m and n are different one from the other, and m is a number between about 300 and about 10,000 and n is a number between about 100 and about 250; R is a quaternary ammonium radical which is a member selected from the group consisting of formulae (a), (b), (c) and (d) ##STR6## in which R', R", R"', are the same or are different one from the other and are alkyl or benzyl radicals and p is an integral number between 0 and 10; X - is the anion Cl - , Br - , I - , F - or HSO 4 - ; together with conventional carriers or excipients for creams, ointments, lotions and powders.

Claim 2

The method of treatment of a patient affected by infections of the skin of the type of pyrodermia, streptodermia, staphylodermia, acne, cutaneous mycosis, moniliasis, ulcerative gingivitis, sycosis barbae and ringworm of the feet; which consists of applying to the area of the patient affected by said infections of the skin a composition containing 0.1-5% of a compound of formula I ##STR5## wherein A is the starch or hydroxyethylcellulose unit, m is the degree of polymerization; m and n are different one from the other, and m is a number between about 300 and about 10,000 and n is a number between about 100 and about 250; R is a quaternary ammonium radical which is a member selected from the group consisting of formulae (a), (b), (c) and (d) ##STR6## in which R', R", R"', are the same or are different one from the other and are alkyl or benzyl radicals and p is an integral number between 0 and 10; X - is the anion Cl - , Br - , I - , F - or HSO 4 - ; together with conventional carriers or excipients for creams, ointments, lotions and powders.