Dennis J Sagl

US Patent:

6890969, May 10, 2005

Filed:

Nov 29, 2001

Appl. No.:

09/997599

Inventors:

John Joseph Rabasco - Allentown PA, US
Dennis Sagl - Fogelsville PA, US

Assignee:

Air Products Polymers, L.P. - Allentown PA

International Classification:

C08K005/31

US Classification:

523122, 424 7831, 424 7837, 424405, 524237

Abstract:

This invention is directed to a method of preserving colloid-stabilized polymer emulsions against microbial attack and spoilage using selected cationic compounds. It is also directed to compositions containing colloid-stabilized polymer emulsions and cationic compounds that are resistant to contamination with biodeteriogenic microbes. It has been discovered that specific cationic compounds are particularly effective against biodeteriogenic microbes in preserving polymer emulsions that have been stabilized with protective colloids, such as poly(vinyl alcohol). Examples of suitable microbicidal cationic compounds are: substituted pyridinium salts, substituted guanidine salts, tetrasubstituted ammonium salts, and polymeric cationic compounds.

US Patent:

7090745, Aug 15, 2006

Filed:

Sep 23, 2002

Appl. No.:

10/252262

Inventors:

Eric J. Beckman - Aspinwall PA, US
W. Eamon Carroll - Orefield PA, US
Toby Chapman - Pittsburgh PA, US
Kristen E. Minnich - Allentown PA, US
Dennis Sagl - Fogelsville PA, US
Richard J. Goddard - Fogelsville PA, US

Assignee:

University of Pittsburgh - Pittsburgh PA

International Classification:

D21H 21/20

US Classification:

1621641, 162158, 1621643, 1621646, 1621681, 1621682, 162166, 162175, 162178

Abstract:

A composition includes at least one hydrophilic polymer containing primary (—NH) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.

US Patent:

7485590, Feb 3, 2009

Filed:

Sep 29, 2006

Appl. No.:

11/540299

Inventors:

John Joseph Rabasco - Allentown PA, US
John Richard Boylan - Bethlehem PA, US
Dennis Sagl - Fogelsville PA, US
Ronald Bernal Jones - Allentown PA, US

International Classification:

B32B 9/04
B32B 27/12

US Classification:

442155, 442149

Abstract:

This invention is directed to an improvement in nonwoven products comprised of a nonwoven web of fibers bonded together with polymeric binder comprised of emulsion polymerized units of vinyl acetate, ethylene, and a crosslinking monomer. The polymer is stabilized with a surfactant having a critical micelle concentration of about 0. 5 to 3% by weight. The surfactant is employed in the polymerization in an amount less than 1% by weight, based upon the total weight of polymer.

US Patent:

7619017, Nov 17, 2009

Filed:

May 19, 2003

Appl. No.:

10/441806

Inventors:

John Joseph Rabasco - Allentown PA, US
Dennis Sagl - Fogelsville PA, US

Assignee:

Wacker Chemical Corporation - Adrian MI

International Classification:

C08K 5/34
C08K 5/17
C09D 5/16

US Classification:

523122, 524238, 524239, 524240, 524 99

Abstract:

This invention is directed to a method of preserving polymer emulsions against biodeteriogenic microbe attack and spoilage by combining with the polymer emulsions selected cationic compounds and an ethylenediamine acid compound. The polymer emulsions contain surfactants and/or anionic constituents. It is also directed to polymer emulsion compositions, that are resistant to spoilage by biodeteriogenic microbes, containing surfactants and/or anionic constituents, an ethylenediamine acid compound, and cationic compounds.

US Patent:

7628888, Dec 8, 2009

Filed:

Jun 12, 2006

Appl. No.:

11/450999

Inventors:

Eric J. Beckman - Aspinwall PA, US
W. Eamon Carroll - Orefield PA, US
Toby Chapman - Pittsburgh PA, US
Kristen E. Minnich - Allentown PA, US
Dennis Sagl - Fogelsville PA, US
Richard J. Goddard - Fogelsville PA, US

Assignee:

University of Pittsburgh—Of the Commonwealth System of Higher Education - Pittsburgh PA

International Classification:

C09K 8/68
C09K 8/90
C08L 101/00
D21H 17/24
D21H 17/56

US Classification:

1621646, 1621641, 162166, 1621682, 162175, 536 56, 5361231, 53612313, 536112

Abstract:

A composition includes at least one hydrophilic polymer containing primary (—NH) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.

US Patent:

54709032, Nov 28, 1995

Filed:

Jul 20, 1994

Appl. No.:

8/277827

Inventors:

William E. Lenney - Allentown PA
Dennis Sagl - Bethlehem PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C08F 230
C08L 3902

US Classification:

524458

Abstract:

A method for preparing aqueous polymer emulsions by effecting polymerization of vinyl monomers in the presence of a stabilizing amount of a water soluble poly(N-vinylformamide) containing polymer as a protective colloid and aqueous polymer emulsions containing poly(N-vinylformamide) stablizer.

US Patent:

57537534, May 19, 1998

Filed:

Feb 19, 1997

Appl. No.:

8/803172

Inventors:

Kien Van Phung - Allentown PA
Dennis Sagl - Bethlehem PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C08F 1606

US Classification:

525 60

Abstract:

This invention relates to an improved process for producing a vinyl alcohol containing polymer having a narrow particle size without substantial reactor fouling. The process for producing the vinyl alcohol containing polymer involves hydrolyzing a vinyl ester containing polymer, e. g. , a polymer containing polymerized vinyl alkanoate units in the presence of an alcoholic medium and a hydrolysis catalyst in the presence of an alcoholic medium having finely divided, inert material such as an alkali metal carbonate dispersed therein. The finely divided inert material acts as nucleating sites for the polyvinyl alcohol as it precipitates from the solution during hydrolysis.

US Patent:

51479249, Sep 15, 1992

Filed:

Feb 19, 1991

Appl. No.:

7/657920

Inventors:

Dennis Sagl - Macungie PA
Menas S. Vratsanos - Breinigsville PA

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

C08L 3306
C08F21808
C08F22012

US Classification:

524559

Abstract:

The present invention relates to a composition for depositing a temporary, selectively soluble protective coating onto a substrate and a process for using the same. The composition consists essentially of a copolymer consisting of 35 to 85 weight percent vinyl acetate and from 15 to 65 weight percent of a predefined monoalkyl maleate which is dispersed in a solvent/vehicle. The protective coatings deposited therefrom are substantially impervious to aqueous media having acidic or neutral pH and provide an effective barrier against damage to the substrate's surface. At the desired time, the protective coating can be removed from the substrate by dissolution in an aqueous alkaline solution.