David R Amick

US Patent:

6337366, Jan 8, 2002

Filed:

Mar 10, 2000

Appl. No.:

09/523393

Inventors:

David Richard Amick - Doylestown PA
James Watson Neely - Dresher PA

Assignee:

Rohm and Haas - Philadelphia PA

International Classification:

C08K 506

US Classification:

524368, 524 35, 524366, 524505, 524591, 524800

Abstract:

A method of improving the viscosity stability of an aqueous composition by the addition to the aqueous composition of a mixture of at least one multiphobe and at least one monophobe is disclosed. The method is particularly useful for stabilizing the viscosity of an aqueous composition containing at least one associative thickener, when surfactants or additives containing surfactants, such as for example colorants, particularly at high levels, are added to the aqueous composition.

US Patent:

6437020, Aug 20, 2002

Filed:

Dec 11, 2000

Appl. No.:

09/734138

Inventors:

David Richard Amick - Doylestown PA 18901
Jerome Michael Harris - Penllyn PA 19422
John Robert Mattox - Perkasie PA 18944

International Classification:

C08K 545

US Classification:

523122, 524 84, 524 99, 524236

Abstract:

Disclosed are stable polyurethane thickener compositions and methods for stabilizing such compositions. Stabilized microbicide compositions and methods for stabilizing such microbicides are disclosed. Also disclosed are stable polyurethane thickener compositions containing microbicides.

US Patent:

7078457, Jul 18, 2006

Filed:

Jul 10, 2003

Appl. No.:

10/617330

Inventors:

David Richard Amick - Doylestown PA, US
Ralph Craig Even - Blue Bell PA, US
Ann Robertson Hermes - Ambler PA, US
Rosemarie Palmer Lauer - Chalfont PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 33/02

US Classification:

524556, 524560, 524832, 526227, 526230

Abstract:

An aqueous composition including a polymer having polymerized ethylenically unsaturated acid monomer is disclosed. The aqueous composition is prepared in the presence of select organic compounds. As provided is a process to prepare the aqueous composition. The aqueous composition is useful as a dispersant for inorganic particles, a thickener or rheology modifiers for various aqueous formulations, and as a dispersing resin.

US Patent:

7091275, Aug 15, 2006

Filed:

Jun 13, 2003

Appl. No.:

10/461954

Inventors:

David Richard Amick - Doylestown PA, US
Wayne Devonport - Doylestown PA, US
Antony Keith Van Dyk - Blue Bell PA, US
Catherine Ann Finegan - Warrington PA, US
Joseph Michael Hoefler - Bensalem PA, US
Dennis Paul Lorah - Lansdale PA, US
Alvin Michael Maurice - Lansdale PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08L 33/00
C08L 33/02

US Classification:

524522, 524556, 524560, 524525, 524502, 524515

Abstract:

An aqueous polymeric composition containing select polymeric nanoparticles is provided. The select polymeric nanoparticles contain as polymerized units at least one multiethylenically unsaturated monomer and at least one water soluble monomer; and have a mean diameter in the range of from 1 to 50 nanometers. Also provided are aqueous polymeric compositions that further contain second particles such as pigment particles or second polymer particles. The aqueous polymeric composition is useful for preparing coatings having at least one improved property compared to a coating absent the select polymeric nanoparticles. Further, the aqueous polymeric composition is useful for treating wood. A coating prepared from the aqueous polymeric composition is also provided.

US Patent:

7244784, Jul 17, 2007

Filed:

Jun 2, 2003

Appl. No.:

10/452175

Inventors:

David Richard Amick - Doylestown PA, US
Robert Howard Gore - Southampton PA, US
Dennis Paul Lorah - Lansdale PA, US
James Watson Neely - Dresher PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 220/16

US Classification:

524556, 524560, 5253303, 5253278, 5253293

Abstract:

New aqueous PNP dispersions are disclosed. A method of preparing an aqueous PNP dispersion from solvent-based PNPs having a diameter in the range of from 1 to 50 nanometers is disclosed. An associative thickener composition based on PNPs having an average of at least two phobes extending from the surface of said PNPs is also disclosed. The aqueous PNP dispersions are useful in aqueous-based industrial and consumer products, such as latex paint.

US Patent:

41918142, Mar 4, 1980

Filed:

Jul 24, 1978

Appl. No.:

5/927196

Inventors:

David R. Amick - Chalfont PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C08F 832
B01J 108

US Classification:

521 32

Abstract:

Anion exchange resins produced by reacting a stabilized polychloromethylstyrene polymer bead with a polyamine containing at least two tertiary amine groups of which at least one is a terminal group, and processes for producing the resins in uniform sizes.

US Patent:

45527520, Nov 12, 1985

Filed:

Jul 28, 1983

Appl. No.:

6/518237

Inventors:

David R. Amick - Chalfont PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

A01N 2534

US Classification:

424 21

Abstract:

An improved article of a membrane permeable to water and impermeable to microbiocidal compounds containing therein a solid particulate microbiocidal composition which is useful in aqueous systems, wherein the composition is produced from aqueous solutions of a water-soluble microbiocidal compound absorbed in an inert, finely-divided water-insoluble solid carrier. Especially useful are microbiocidal 3-isothiazolones and 2-substituted-1,2-benzisothiazolones, and metal salt stabilized derivatives thereof, absorbed into a silicaceous diatomaceous earth in a sealed, perforated membrane, for example, a perforated bag, produced from polyethylene. These articles afford a form, which is safer for handling.

US Patent:

51514478, Sep 29, 1992

Filed:

Jun 5, 1990

Appl. No.:

7/533566

Inventors:

David R. Amick - Doylestown PA

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

A01N 3718

US Classification:

514627

Abstract:

S-substituted beta-thioacrylamide compounds have been discovered to be useful as biocides and fungicides. Compositions comprising the compound and isothiazolin-3-ones and/or carriers, methods of preparation of the compounds and methods of using the compounds and compositions are also disclosed.