Andrew A Solov

US Patent:

6607610, Aug 19, 2003

Filed:

Oct 18, 2002

Appl. No.:

10/273446

Inventors:

William S. Carey - Wallingford PA
Bruce Haberle - Fogelsville PA
Jeffrey I. Melzer - Lansdale PA
Edward A. Rodzewich - Fourtown PA
Ping Lue - Boothwyn PA
Andrew Solov - Holland PA

Assignee:

GE Betz, Inc. - Trevose PA

International Classification:

C23C 2205

US Classification:

148247, 106 1412, 106 1415, 106 1444

Abstract:

The present invention relates to a composition for the treatment of metal substrates including an aqueous solution of a Group IVA metal ion, selected from the group consisting of zirconium, titanium, hafnium and mixtures thereof, and a water-soluble or water-dispersible polyphenolamine.

US Patent:

54896665, Feb 6, 1996

Filed:

Oct 7, 1994

Appl. No.:

8/319754

Inventors:

William S. Carey - Ridley Park PA
Andrew Solov - Holland PA
Donald T. Freese - Glenside PA
Libardo A. Perez - Morrisville PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C08G 6302
C02F 510

US Classification:

528272

Abstract:

A method and compounds for inhibiting the formation of scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of calcium scales in circulating aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a compound of the general formula: ##STR1## wherein R is hydrogen, alkyl, aryl, substituted alkyl or substituted aryl; R' and R" are each independently hydrogen, C. sub. 1-4 alkyl or C. sub. 1-4 substituted alkyl; Z is 0, S, NH, or NR, where R is as described above; n is a positive integer greater than 1; f is a positive integer; and M is hydrogen, a water soluble cation (e. g. , NH. sub. 4. sup. +, alkali metal) or a C. sub. 1 -C. sub. 3 alkyl group.

US Patent:

56162782, Apr 1, 1997

Filed:

Apr 19, 1996

Appl. No.:

8/635123

Inventors:

William S. Carey - Ridley Park PA
Andrew Solov - Holland PA
Libardo A. Perez - Morrisville PA
Donald T. Freese - Glenside PA

Assignee:

BetzDearborn Inc. - Trevose PA

International Classification:

C02F 514

US Classification:

252180

Abstract:

A method and compounds for inhibiting the formation of scale, e. g. , barium scale, and controlling corrosion is disclosed. The method is particularly effective at inhibiting or preventing corrosion of ferrous-based metals in contact with the aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a compound of the general formula: ##STR1## wherein R is hydrogen, alkyl, aryl, substituted alkyl or substituted aryl; R' and R" are each independently hydrogen, C. sub. 1-4 alkyl or C. sub. 1-4 substituted alkyl; Z is O, S, NH or NR, where R is as described above; n is a positive integer greater than 1; f is a positive integer; and M is hydrogen, a water soluble cation (e. g. , NH. sub. 4. sup. +, alkali metal), or a C. sub. 1-3 alkyl group.

US Patent:

53325052, Jul 26, 1994

Filed:

Oct 2, 1992

Appl. No.:

7/955569

Inventors:

William S. Carey - Ridley Park PA
Andrew Solov - Holland PA
Libardo A. Perez - Morrisville PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C02F 514

US Classification:

210697

Abstract:

A method and composition for inhibiting silica and silicate deposition on metal surfaces in contact with aqueous systems is disclosed.

US Patent:

55191029, May 21, 1996

Filed:

May 9, 1995

Appl. No.:

8/437340

Inventors:

Michael A. Cady - Yardley PA
William S. Carey - Ridley Park PA
Andrew Solov - Holland PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C08F 3002
C08F13002

US Classification:

526278

Abstract:

A method of preparing poly(isopropenylphosphonic acid) is disclosed, which provides a high yield with low initiator charge. The method comprises preparing poly(isopropenylphosphonic acid) by polymerizing a mixture of isopropenylphosphonic acid and isopropenylphosphonic acid anhydride, preferably in an aqueous solution.

US Patent:

56017545, Feb 11, 1997

Filed:

Apr 21, 1995

Appl. No.:

8/426516

Inventors:

William S. Carey - Ridley Park PA
Andrew Solov - Holland PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C02F 510
C23F 1112

US Classification:

252396

Abstract:

A polymer and method of controlling corrosion and the formation and deposition of scale imparting compounds in water systems is disclosed. The polymer has the general structure: ##STR1## wherein E. sup. 1 comprises the repeat unit obtained after polymerization of one or more. alpha. ,. beta. ethylenically unsaturated monomers, selected from the group consisting of a carboxylic 3acid, lower alkyl (C. sub. 1 -C. sub. 6) ester or a hydroxylated lower alkyl (C. sub. 1 -C. sub. 6) ester of such carboxylic acid, and amide forms thereof; E. sup. 2 comprises the repeat unit obtained after polymerization of one or more. alpha. ,. beta. ethylenically unsaturated monomer containing a sulfonic acid functionality; R. sup. 1 is a hydrogen or a lower (C. sub. 1 -C. sub. 3) alkyl; R. sup. 2 is --CH. sub.

US Patent:

53783727, Jan 3, 1995

Filed:

Jun 9, 1993

Appl. No.:

8/074254

Inventors:

William S. Carey - Ridley Park PA
Andrew Solov - Holland PA
Donald T. Freese - Glenside PA
Libardo A. Perez - Morrisville PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C02F 514

US Classification:

210697

Abstract:

A method and polymers for inhibiting the formation of scale is disclosed. The method is particularly effective at inhibiting the formation and deposition of calcium scales in circulating aqueous systems such as cooling water systems. The method comprises introducing into the aqueous system a polymer of the general formula: ##STR1## wherein R is hydrogen, alkyl, aryl, substituted alkyl or substituted aryl; R' and R" are each independently hydrogen, C. sub. 1-4 alkyl or C. sub. 1-4 substituted alkyl; Z is O, S, NH, or NR, where R is as described above; n is a positive integer greater than 1; f is a positive integer; and M is hydrogen, a water soluble cation (e. g. , NH. sub. 4. sup. +, alkali metal), or a C. sub. 1 -C. sub. 3 alkyl group.

US Patent:

54220106, Jun 6, 1995

Filed:

Jun 15, 1994

Appl. No.:

8/259954

Inventors:

William S. Carey - Ridley Park PA
Andrew Solov - Holland PA
Libardo A. Perez - Morrisville PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

C02F 514

US Classification:

210697

Abstract:

A method and composition for inhibiting silica and silicate deposition on metal surfaces in contact with aqueous systems is disclosed.