David W Greene

US Patent:

55434398, Aug 6, 1996

Filed:

Feb 24, 1995

Appl. No.:

8/394614

Inventors:

Keith J. McDermott - Bound Brook NJ
John M. Teffenhart - Edison NJ
Shmuel D. Shefer - East Brunswick NJ
David A. Greene - Wanamassa NJ
Leslie C. Smith - Jamesburg NJ
Charles E. J. Beck - Summit NJ

Assignee:

International Flavors & Fragrances Inc. - New York NY

International Classification:

A61L 901
E03D 902

US Classification:

523102

Abstract:

Described is a composition of matter particularly useful in fabricating toilet rim blocks consisting of: (a) extruded polyvinyl alcohol or partially hydrolyzed polyvinyl acetate with the maximum mole ratio of acetyl moiety:hydroxyl moiety being about 3:1 having a number average molecular weight of from about 15,000 up to about 68,000 containing 0 up to about 13% by weight of plasticizer; (b) from about 1 up to about 20% by weight of a compatible fragrance contained within the polyvinyl alcohol or partially hydrolyzed polyvinyl acetate; (c) from 0 up to about 20% by weight of a "foaming agent" which is a first surfactant and which can be a detergent, contained within the polyvinyl alcohol or partially hydrolyzed polyvinyl acetate; (d) from 0 up to about 20% by weight of a hydrophobic silica contained within the polyvinyl alcohol or partially hydrolyzed polyvinyl acetate; (e) from 0 up to about 20% by weight of at least one second surfactant in addition to the "foaming agent"; (f) from 0 up to about 5% by weight of a water soluble dye; and (g) from 0 up to about 4% by weight of a "foam booster". Also described are processes for preparing such compositions of matter and such toilet rim blocks. When used for the fabrication of toilet rim blocks, the maximum mole ratio of acetyl moiety:hydroxyl moiety is about 1:3.

US Patent:

55823890, Dec 10, 1996

Filed:

Jun 21, 1994

Appl. No.:

8/263057

Inventors:

David N. Greene - New York NY

International Classification:

B28B 734

US Classification:

249 61

Abstract:

A cooking utensil has a base portion and a wall portion, wherein at least the wall portion is disposable after a single use. The wall portion includes a score line for irreversibly forming an opening in the wall portion. Tabs may be provided on either side of the score line for facilitating opening of the wall portion along the score line.

US Patent:

39897982, Nov 2, 1976

Filed:

Jul 23, 1973

Appl. No.:

5/381369

Inventors:

David F. Greene - Westfield NJ
Robert J. Lang - Watchung NJ
Albert B. Welty - Westfield NJ

Assignee:

Exxon Research and Engineering Company - Linden NJ

International Classification:

B01J 800
C01B 1700

US Classification:

423244

Abstract:

Flue gas is desulfurized by absorbing it onto a selective absorbent-catalytic material. The absorbed SO. sub. 2 is recovered by contacting it in a desorption cycle with a reducing desorption gas. In one embodiment, multiple absorbent beds are employed and alternate absorption-desorption cycles are used in each of the multiple beds with the flue gas and the desorption gas used alternately. The sulfur oxide is recovered in concentrated form in the desorption gas stream and is then utilized as feed in a conventional sulfuric acid plant yielding concentrated sulfuric acid.