Matthew S Gebhard

US Patent:

6428844, Aug 6, 2002

Filed:

Nov 15, 1993

Appl. No.:

08/153239

Inventors:

Matthew Stewart Gebhard - New Britain PA
Ethan Scott Simon - Ambler PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

B05D 302

US Classification:

427189, 427195, 427421, 521 78

Abstract:

A method for reducing the amount of microfoam in a spray-applied waterborne polymeric composition is provided, wherein a gas, such as, for example, carbon dioxide, having a solubility factor greater than one is used in spraying the waterborne composition. Articles so coated are also provided. And, a method for increasing the density of a spray-dried waterborne polymeric composition is provided, wherein a gas, such as, for example, carbon dioxide, having a solubility factor greater than one is used in spray-drying the waterborne composition.

US Patent:

6586516, Jul 1, 2003

Filed:

Oct 4, 1996

Appl. No.:

08/720793

Inventors:

Mark Alan Kesselmayer - Harleysville PA
Theodore Tysak - Philadelphia PA
Matthew Stewart Gebhard - New Britain PA
Min-Chi Tsai von Trentini - Yardley PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08K 501

US Classification:

524475, 4273855, 427393, 428463, 428484, 428485, 428514, 524477, 524522, 524523, 524558

Abstract:

The present invention relates to an aqueous coating composition having low volatile organic compounds (VOC) and producing a coating having excellent durability and resistance properties. The coating composition contains acetoacetate functional polymer and divalent metal ions. Coating compositions of the present invention are particularly useful in ink, polish and coating compositions where a tough, resistant coating is required. The coating composition can be used on various substrates such as floors, walls wood, metal, plastic, stone, paper, leather and concrete.

US Patent:

6660801, Dec 9, 2003

Filed:

Apr 20, 2000

Appl. No.:

09/552877

Inventors:

Matthew Stewart Gebhard - New Britain PA
Bradley Keith Hageman - Pottstown PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 3100

US Classification:

524556, 524238, 524243, 524245, 524543, 524558, 524560, 524563

Abstract:

An aqueous coating composition having improved adhesion to friable surfaces including an emulsion polymer of certain compositions and certain acid numbers having a glass transition temperature of -20 C to 100 C and an average particle diameter less than 120 nanometers; and 0. 25-10%, by weight based on emulsion polymer weight, water-soluble alkoxylated amine is provided. In addition a method for for improving adhesion to friable surfaces by using the aqueous coating compositions of the invention is provided.

US Patent:

6750050, Jun 15, 2004

Filed:

Sep 27, 2001

Appl. No.:

09/965377

Inventors:

Matthew S. Gebhard - New Britain PA
Patricia M. Lesko - Ottsville PA
Albert B. Brown - Buckingham PA
David H. Young - Ambler PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C12N 1108

US Classification:

435180, 4284111, 435182, 435395, 523201, 525902

Abstract:

Porous films are provided which include a blend of a film forming polymer and a non-film forming material, the film having a network of pores or channels throughout the film. The porous polymer films are formed between 0Â and 80Â C. retain porosity at elevated temperatures and are non-friable. A process for preparing porous polymer films and their applications are disclosed.

US Patent:

6846867, Jan 25, 2005

Filed:

Oct 29, 2001

Appl. No.:

10/055492

Inventors:

Matthew Steward Gebhard - New Britain PA, US
Kathleen Anne Koziski - Lansdale PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08K 506

US Classification:

524375, 524376

Abstract:

An aqueous coating composition having improved adhesion to friable surfaces including an emulsion polymer of certain compositions and certain acid numbers having a glass transition temperature of −20 C. to 100 C. and an average particle diameter less than 120 nanometers, and certain water-soluble ethoxylates is provided. In addition, a method for improving adhesion to friable surfaces by using the aqueous coating compositions of the invention is provided.

US Patent:

6942898, Sep 13, 2005

Filed:

Jul 10, 2003

Appl. No.:

10/617163

Inventors:

Matthew Stewart Gebhard - New Britain PA, US
Bradley Keith Hageman - Pottstown PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

B05D003/02

US Classification:

427384, 4273855, 427393, 4273936

Abstract:

An aqueous coating composition having improved adhesion to friable surfaces including an emulsion polymer of certain compositions and certain acid numbers having a glass transition temperature of −20 C to 100 C and an average particle diameter less than 120 nanometers; and 0. 25-10%, by weight based on emulsion polymer weight, water-soluble alkoxylated amine is provided. In addition a method for for improving adhesion to friable surfaces by using the aqueous coating compositions of the invention is provided.

US Patent:

7101921, Sep 5, 2006

Filed:

Oct 11, 2002

Appl. No.:

10/269402

Inventors:

Steven Scott Edwards - Horsham PA, US
Matthew Stewart Gebhard - New Britain PA, US
Allen Philip Marks - Richboro PA, US
Alvin Michael Maurice - Lansdale PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C09D 151/00
C09D 133/00
C08F 2/22
C08F 291/00

US Classification:

523201, 524458, 524522, 524523

Abstract:

A polymer composition including polymer particles containing a first polymer and a second polymer is disclosed. The first polymer has a crosslinked core and has a glass transition temperature in the range of −30 C. to 100 C. The second polymer containing select crosslinking groups and has a glass transition temperature in the range of −10 C. to less than 18 C. A process to prepare the polymer composition is provided. Also provided are a coated article containing a coating prepared from the polymer composition and a method of preparing the coated article. The polymer composition has good low temperature film formation and provides a film with an acceptable level of hardness.

US Patent:

7235603, Jun 26, 2007

Filed:

Mar 17, 2004

Appl. No.:

10/802638

Inventors:

Thomas Glenn Madle - Flourtown PA, US
Matthew Stewart Gebhard - New Britain PA, US
Chao-Jen Chung - North Wales PA, US
Gary David Greenblatt - Rydal PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08G 18/82
C08G 2/32

US Classification:

5251115, 525301, 524531, 524800

Abstract:

An ambient curable aqueous dispersion of polymer particles containing pendant ethylenically unsaturated side chains; a method of applying to a substrate a coating composition containing the aqueous dispersion of polymer particles; and a method of making the aqueous dispersion of polymer particles are provided.