Daniel C Ellis

US Patent:

39947726, Nov 30, 1976

Filed:

Oct 23, 1975

Appl. No.:

5/625285

Inventors:

Paul Swered - Philadelphia PA
Daniel B. Ellis - Huntingdon Valley PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

D21D 300

US Classification:

162161

Abstract:

The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of paper and pulp paper, in cooling water systems and in effluent water treatment. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi and algae, which produce, in aqueous systems or bodies, slime which is objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising. alpha. -Bromo-p-methylacetophenone and 1,3-dichloroacetone oxime acetate.

US Patent:

39895858, Nov 2, 1976

Filed:

Oct 23, 1975

Appl. No.:

5/625284

Inventors:

Paul Swered - Philadelphia PA
Daniel B. Ellis - Huntingdon Valley PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

D21D 300

US Classification:

162161

Abstract:

The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of paper and pulp paper, in cooling water systems and in effluent water treatment. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi and algae, which produce, in aqueous systems or bodies, slime which is objectionable from either an operational or aesthetic point of view. Specifically, the invention is directed to the use of compositions comprising. alpha. -Bromo-p-methylacetophenone and Bis (trichloromethyl) sulfone.