Richard M Rowland

US Patent:

51820455, Jan 26, 1993

Filed:

Mar 29, 1989

Appl. No.:

7/329982

Inventors:

Richard R. Rowland - Danville CA
Ronald A. Fong - Modesto CA
Richard J. Wiersema - Tracy CA
Alfred G. Zielske - Pleasanton CA

Assignee:

The Clorox Company - Oakland CA

International Classification:

C09K 300

US Classification:

25218638

Abstract:

Polyglycolate compounds are provided having the general structure: ##STR1## wherein n is an integer from 2 to about 10; R is C. sub. 1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C. sub. 1-20 alkyl, aryl, C. sub. 1-20 alkylaryl, substituted aryl, and NR. sub. 3. sup. alpha. +, wherein R. sup. alpha. is C. sub. 1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxygen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure ##STR2## will be formed in amounts approaching quantitative yield.

US Patent:

55457487, Aug 13, 1996

Filed:

Oct 18, 1994

Appl. No.:

8/325050

Inventors:

Richard R. Rowland - Danville CA
Ronald A. Fong - Modesto CA
Richard J. Wiersema - Tracy CA
Alfred G. Zielske - Pleasanton CA

Assignee:

The Clorox Company - Oakland CA

International Classification:

C07C40902
C01B 1510

US Classification:

562 2

Abstract:

Polyglycolate compounds are provided having the general structure: ##STR1## wherein n is an integer from 2 to about 10; R is C. sub. 1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C. sub. 1-20 alkyl, aryl, C. sub. 1-20 alkylaryl, substituted aryl, and NR. sub. 3. sup. alpha. +, wherein R. sup. alpha. is C. sub. 1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxgen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure ##STR2## will be formed in amounts approaching quantitative yield.

US Patent:

50915606, Feb 25, 1992

Filed:

Dec 21, 1990

Appl. No.:

7/635409

Inventors:

Richard R. Rowland - Danville CA

Assignee:

The Clorox Company - Oakland CA

International Classification:

C07C 6966

US Classification:

560185

Abstract:

A method for synthesizing an acyloxycarboxylic acid by providing a reaction chamber, establishing sources of an. alpha. -hydroxycarboxylic acid and an acid chloride, and repeatedly contacting substantially equal molar amounts of the. alpha. -hydroxycarboxylic acid and the acid chloride within the reaction chamber. The acyloxycarboxylic acid so synthesized is useful as a starting material for conversion to various esters which, when placed in aqueous solution with a source of hydrogen peroxide, result in a peracid and are useful for bleaching applications.

US Patent:

53918126, Feb 21, 1995

Filed:

Sep 25, 1992

Appl. No.:

7/951238

Inventors:

Richard R. Rowland - Danville CA
Ronald A. Fong - Modesto CA
Richard J. Wiersema - Tracy CA
Alfred G. Zielske - Pleasanton CA

Assignee:

The Clorox Company - Oakland CA

International Classification:

C07C 6900

US Classification:

560145

Abstract:

Polyglycolate compounds are provided having the general structure: ##STR1## wherein n is an integer from 2 to about 10; R is C. sub. 1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C. sub. 1-20 alkyl, aryl, C. sub. 1-20 alkylaryl, substituted aryl, and NR. sub. 3. sup. alpha. +, wherein R. sup. alpha. is C. sub. 1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxygen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure ##STR2## will be formed in amounts approaching quantitative yield.