Francis C Mccarthy

US Patent:

42997496, Nov 10, 1981

Filed:

Oct 16, 1980

Appl. No.:

6/197546

Inventors:

Francis L. McCarthy - Pompton Plains NJ
Thomas H. Bach - Pearl River NY

Assignee:

Sterling Drug Inc. - New York NY

International Classification:

C08L 3302

US Classification:

260 296Z

Abstract:

The invention relates to a stable aqueous self-stripping floor cleaning, coating and polishing composition containing a low molecular weight alkali-soluble acrylic type addition-polymer, a fugitive plasticizer, tributoxyethyl phosphate, tetrasodium ethylenediaminetetraacetate, an anionic or nonionic fluorocarbon surfactant, a dimethylpolysiloxane antifoaming agent, 1,2-benzothiazolin-3-one, an alkali metal bicarbonate, water and ammonia to pH 9 to 9. 7; and optionally formaldehyde, caprolactam and a styrene-maleic anhydride copolymer, the composition having a solids content of from 5 to 15% by weight.

US Patent:

56792417, Oct 21, 1997

Filed:

May 17, 1995

Appl. No.:

8/442954

Inventors:

Stephen J. Stanley - Matawan NJ
Francis D. McCarthy - Wayne NJ
Charles Sumner - Livingston NJ
Gary Robert Gildert - Houston TX

Assignee:

ABB Lummus Global Inc. - Bloomfield NJ
Chemical Research & Licensing Company - Pasadena TX

International Classification:

C10G 700

US Classification:

208 92

Abstract:

The C. sub. 2 to C. sub. 5 and heavier acetylenes and dienes in a thermally cracked feed stream are hydrogenated without significantly hydrogenating the C. sub. 2 and C. sub. 3 olefins. Additionally, the C. sub. 4 and heavier olefins may be hydrogenated. Specifically, the cracked gas feed in an olefin plant is hydrogenated in a distillation reaction column containing a hydrogenation catalyst without the necessity of separating the hydrogen out of the feed and without any significant hydrogenation of the ethylene and propylene. A combined reaction-fractionation step known as catalytic distillation hydrogenation is used to simultaneously carry out the reactions and separations while maintaining the hydrogenation conditions such that the ethylene and propylene remain substantially un-hydrogenated and essentially all of the other C. sub. 2 and heavier unsaturated hydrocarbons are hydrogenated. Any unreacted hydrogen can be separated by a membrane and then reacted with separated C. sub.