William A Barrows

US Patent:

8119560, Feb 21, 2012

Filed:

Jul 20, 2009

Appl. No.:

12/460486

Inventors:

Kenneth G. Caldwell - Mountville PA, US
Gourish Sirdeshpande - Lancaster PA, US
William Barrows - Elizabethtown PA, US
John R. Garrick - Lancaster PA, US
Michael Cook - Lancaster PA, US

Assignee:

AWI Licensing Company - Wilmington DE

International Classification:

B01J 20/22
D21H 17/07
B05D 1/12
B05D 3/00
B29B 15/10
B27K 3/36
B27K 3/50
B27K 3/52

US Classification:

502401, 1062872, 10628723, 10628724, 10628725, 10628726, 427180, 427189, 427194, 427195, 427201, 427202, 427203, 427204, 427256, 427287, 427288, 4274211, 4274276, 4274277, 42742801, 427429, 427445, 428540, 428541

Abstract:

The invention is a surface coating which will reduce the aldehyde concentration in a room via a aldehyde reactive material contained in the coating. Upon reaction, the aldehyde becomes part of the reactive molecule and, thus, is permanently held within the coating.

US Patent:

8598069, Dec 3, 2013

Filed:

Jul 20, 2009

Appl. No.:

12/460501

Inventors:

William Barrows - Elizabethtown PA, US
Gourish Sirdeshpande - Lancaster PA, US
Kenneth G. Caldwell - Mountville PA, US
John R. Garrick - Lancaster PA, US
Michael Cook - Lancaster PA, US

Assignee:

AWI Licensing Company - Wilmington DE

International Classification:

B01J 20/22
B01J 20/04
B01D 53/72
B01D 53/44
C01F 5/24
C01F 11/18

US Classification:

502401, 502400, 4232451, 423430

Abstract:

A composition which provides enhanced removal of aldehydes from the air of the building interior. The composition includes an amino silane and a multivalent metal carbonate and is especially suitable for adding to building product board substrates, such as acoustical ceiling panels and gypsum wallboards. The composition of the invention can be applied during manufacturing or can be post applied to already constructed room surfaces. The composition provides longevity of aldehyde removal heretofore unachieved.

US Patent:

57360081, Apr 7, 1998

Filed:

Apr 8, 1993

Appl. No.:

8/045467

Inventors:

William D. Barrows - Manchester MD
George H. Crouse - Westminster MD
John F. Morton - Westminster MD

Assignee:

Congoleum Corporation - Mercerville NJ

International Classification:

D21H 518

US Classification:

162102

Abstract:

A process for forming a highly filled, fibrous-reinforced sheet in which the sheet is formed from an aqueous dispersion of solids which include fibers, filler, and binder and cationic flocculating agent by continuously feeding a stream of such aqueous dispersion onto a moving porous support surface, wherein the filler comprises at least about 50 wt. % of the solids portion of the dispersion, the improvement comprising the use in the aqueous dispersion of a filler consisting essentially of calcium carbonate and a cationic polymeric flocculant having a charge-density of at least about 2 equivalents of cationic nitrogen per kilogram of polymer, and a highly-filled calcium carbonate-containing sheet, and the use of carbon black to impart opacity to paper or sheet that has a white appearance.

US Patent:

56794436, Oct 21, 1997

Filed:

May 30, 1995

Appl. No.:

8/453902

Inventors:

William D. Barrows - Manchester MD
George H. Crouse - Westminster MD
John F. Morton - Westminster MD

Assignee:

Congoleum Corporation - Lawrenceville NJ

International Classification:

B32B 516

US Classification:

428206

Abstract:

A process for forming a highly filled, fibrous-reinforced sheet in which the sheet is formed from an aqueous dispersion of solids which include fibers, filler, and binder and cationic flocculating agent by continuously feeding a stream of such aqueous dispersion onto a moving porous support surface, wherein the filler comprises at least about 50 wt. % of the solids portion of the dispersion, the improvement comprising the use in the aqueous dispersion of a filler consisting essentially of calcium carbonate and a cationic polymeric flocculant having a charge-density of at least about 2 equivalents of cationic nitrogen per kilogram of polymer, and a highly-filled calcium carbonate-containing sheet, and the use of carbon black to impart opacity to paper or sheet that has a white appearance.