Patents by Inventor George C. Sawicki

George C. Sawicki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5486306
    Abstract: A foam control agent which is free from hydrocarbon oils and comprises (A) an organopolysiloxane with 0 to 60% of units (i) ##EQU1## wherein R denotes a C.sub.8 hydrocarbon group and a is 0-3, and 40 to 100% of units (ii) ##EQU2## wherein R" is --Z.sub.z --R' with R' being an C.sub.9-35 alkyl, Z is a linking group and z is 0 or 1, b 0, 1 or 2, c 1 or 2 and b+c 1, 2 or 3, provided more than 70% by weight of the carbon content of (A) is due to R", (B) a finely divided hydrophobic particulate material and (C) optionally a MQ organosilicon resin. The agents give improved performance and stability e.g. in detergent powders.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: January 23, 1996
    Assignee: Dow Corning, S.A.
    Inventors: Jacqueline L'Hostis, Franck A. D. Renauld, George C. Sawicki
  • Patent number: 5387364
    Abstract: Foam in an environment with free surface turbulence is controlled with a foam control agent which comprises (A) 5 to 90 parts by weight of an organopolysiloxane having at least 40% siloxane units with a substituent --Z.sub.z --R' wherein R' is a C.sub.9-35 alkyl group, Z is a linking group with silicon and z is 0 or 1, provided more than 70% by weight of its carbon content is due to the groups --Z.sub.z --R', (B) 0.1 to 30 parts by weight of a finely divided hydrophobic particulate material, (C) 5 to 95 parts by weight of a hydrocarbon oil and (D) 0 to 20 parts by weight of an organosilicon MQ resin.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: February 7, 1995
    Assignee: Dow Corning S.A.
    Inventors: Beatrice Nedelec, Franck A. D. Renauld, George C. Sawicki
  • Patent number: 5026891
    Abstract: Surface active silicone compounds which have an improved stability at a pH above 9 or below 4, have the general formula ##STR1## wherein each R independently represents an alkyl or aryl group, each R' represents an alkylene group preferably separating neighbouring silicon atoms by up to 3 carbon atoms, each R" independently denotes R or, only if a is 0, the group R.sub.3 SiR'--, Z represents a hydrophilic sulphur, nitrogen or phosphor containing substituent or a carboxy-functional group or a salt thereof, and a has the value 0, 1 or 2.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: June 25, 1991
    Assignee: Dow Corning Limited
    Inventors: Andre R. L. Colas, Franck A. D. Renauld, George C. Sawicki
  • Patent number: 4961753
    Abstract: Aqueous compositions comprising water having dispersed therein (A) a cationic compound which is substantive to water rinse on textile fabrics and (B) a mixture of a high viscosity polydiorganosiloxane and one or more methylsiloxanes having from 2 to 8 silicon atoms in the molecule.The compositions are useful as fabric conditioners in domestic and commercial laundry operations.
    Type: Grant
    Filed: July 24, 1989
    Date of Patent: October 9, 1990
    Assignee: Dow Corning Limited
    Inventors: Annemieke C. M. Donkers, George C. Sawicki
  • Patent number: 4624794
    Abstract: A textile treating composition, useful as a composition for the softening of textiles during the rinse cycle of a laundry operation, comprises a cationic surfactant which is substantive to water rinse on textiles and a polydiorganosiloxane having at least one amido containing substitutent, preferably of the formula ##STR1## where R is an alkylene group. The composition is preferably utilized in the form of an aqueous dispersion. A process for treating textile fabrics is also described.Textile fabrics when treated with this composition exhibit a less greasy feel than prior art textile fabrics and also have an improved rewet time.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: November 25, 1986
    Assignee: Dow Corning, Ltd,
    Inventors: David J. Cooke, Brian J. Griffiths, Vivian B. John, George C. Sawicki