Robert N Gabriel

US Patent:

6358914, Mar 19, 2002

Filed:

Jun 17, 1999

Appl. No.:

09/335128

Inventors:

Gladys S. Gabriel - Cranbury NJ 08512
Robert Gabriel - Cranbury NJ 08512
Manilal S. Dahanayake - Princeton Junction NJ 08550
Paul-Joel Derian - St. Jean/St. Maurice-sur-Loire, FR

International Classification:

C11D 162

US Classification:

510528, 510276, 510329, 510330, 510299, 510400, 510504, 510515, 510517

Abstract:

Compositions are disclosed comprising a conventional surfactant, a cationic or amphoteric gemini surfactant and a polymeric soil release agent. The conventional surfactant comprises a hydrophilic group and a hydrophobic group. The gemini surfactant comprises two surfactant moieties attached to each other by a spacer moiety. Each surfactant moiety having at least one hydrophilic group and at least one hydrophobic group. Novel trimeric and tetrameric cationic gemini surfactants are also disclosed along with their use in combination with soil release polymer compositions that exhibit superior cleaning efficacies when incorporated in laundry and other cleaning detergent systems. Novel surfactant/soil release polymer compositions are also disclosed employing known cationic gemini surfactants. The polymeric soil release agent can be any conventional polymeric soil release agent, but preferably comprising PETâPOET copolymer. The compositions are useful as surfactant additive packages, detergents and fabric softeners.

US Patent:

60402881, Mar 21, 2000

Filed:

Feb 20, 1998

Appl. No.:

9/026828

Inventors:

Christine Popoff - Morganville NJ
Alwyn Nartey - Plainsboro NJ
Robert Gabriel - Cranbury NJ
Eric Aubay - Courbevoie, FR

Assignee:

Rhodia Inc. - Cranbury NJ

International Classification:

C11D 304
C11D 316

US Classification:

510466

Abstract:

Provided are methods of washing fabric articles in the presence of silicone oils to provide for color protection and/or fragrance retention in the washing of fabric articles with detergents. Fabric articles are washed in a washing medium comprised of a major amount by weight of water, a first minor amount by weight of a detergent and a second minor amount by weight of an aminosilicone having the formula: ##STR1## wherein: the variables are defined in the specification wherein said first minor amount by weight is greater than said second minor amount by weight. In preferred embodiments of this method, said washing medium is the product of mixing water with a composition comprised of said aminosilicone compound in association with an insoluble support. In particularly preferred embodiments, an aminosilicone compound wherein R. sup. 1 and R. sup. 8 are both alkoxy, (typically methoxy) is employed.

US Patent:

59226633, Jul 13, 1999

Filed:

Oct 4, 1996

Appl. No.:

8/726437

Inventors:

Robert Gabriel - Cranbury NJ
Gladys Saliba Gabriel - Cranbury NJ
Mark David Einziger - Manalapan NJ

Assignee:

Rhodia Inc. - Cranbury NJ

International Classification:

C11D 170
C11D 183
C11D 1835
B01F 1142

US Classification:

510299

Abstract:

A composition comprising a conventional surfactant, a gemini surfactant and a polymeric soil release agent. The conventional surfactant comprises a hydrophilic group and a hydrophobic group. The gemini surfactant comprises two surfactant moieties attached to each other by a spacer moiety; each surfactant moiety having at least one hydrophilic group and at least one hydrophobic group. The polymeric soil release agent can be any conventional polymeric soil release agent, but preferably comprising PET-POET copolymer. The compositions are useful as surfactant additive packages, detergents and fabric softeners.