Abstract: A granular detergent composition having a bulk density of at least 650 g/l and comprising at least 5% by weight of anionic surfactants, nonionic surfactants, or mixtures thereof, and further comprising: i) from 2% to 50% by weight of granular alkalimetal percarbonate, ii) from 0.7% to 20% by weight of powdered silicate, and wherein silicate particles having a particle size diameter of less than 425 micrometers comprise at least 0.7% by weight of the composition.
Type:
Grant
Filed:
January 24, 1996
Date of Patent:
January 6, 1998
Assignee:
The Procter & Gamble Company
Inventors:
Gerard Marcel Baillely, Thomas Edward Cook
Abstract: Disclosed is a detergent composition comprising a polyhydroxy fatty acid amide surfactant of the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C.sub.4 hydrocarbyl, 2-hydroxy ethyl, 2 hyroxy propyl, or a mixture thereof, R.sup.2 is C.sub.5 -C.sub.31 hydrocarbyl, and Z is a polyhydroxy-hydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls connected directly to said chain, or an alkoxylated derivative thereof, and a non-borate, non-borate-forming bleaching agent such as the persulfates and especially the percarbonate bleaches. Mixtures of non-perborates with bleach activators such as tetraacetyl ethylene diamine are also used in the compositions. Also disclosed is a method for cleaning substrates, such as fabrics, fibers, textiles, hard surfaces, etc., at temperatures below about 50.degree. C., especially below about 40.degree. C.
Type:
Grant
Filed:
March 7, 1995
Date of Patent:
December 23, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Frederick Edward Hardy, Bruce Prentiss Murch
Abstract: Polyaminoacid builders or co-builders having the general formula: ##STR1## that are useful in the formulations of detergents are disclosed. Preferred detergent formulations contain from 5 to 50 percent by weight of the polyaminoacid builder, preferably polyaspartic aicd or polyglutamic acid, together with surface-active agents, aluminosilicates and other detergent additives.
Type:
Grant
Filed:
June 14, 1994
Date of Patent:
August 19, 1997
Assignee:
Rohm and Haas Company
Inventors:
Annick Du Vosel, Franco Francalanci, Paola Maggiorotti
Abstract: A particulate foam control agent comprises 1 to 30 parts silicone antifoam, 70 to 99 parts zeolite carrier, 1 to 60% of the antifoam of an organopolysiloxane polyoxyalkylene copolymer, deposited onto the zeolite carrier not later than the antifoam and 1 to 40 parts by weight of a polycarboxylate-type binder or encapsulant. This combination give good release in early stages, storage stability and powder characteristics.
Type:
Grant
Filed:
July 22, 1994
Date of Patent:
December 31, 1996
Assignee:
Dow Corning S.A.
Inventors:
Leonidas Kolaitis, Bertrand L. J. Lenoble, Mark A. Prince
Abstract: A process for the production of a detergent composition having a predetermined relative humidity comprising forming a crude detergent composition having a relative humidity in excess of the predetermined level, for example in excess of 30% and contacting the said crude composition with a preconditioned gas having a relative humidity below the predetermined relative humidity wherein the temperature of the crude composition is maintained below the temperature at which the crude composition agglomerates thereby to form a low relative humidity detergent composition.
Type:
Grant
Filed:
November 1, 1994
Date of Patent:
July 16, 1996
Assignee:
Lever Brothers Company, Division of Conopco, Inc.