Patents by Inventor Ian R. Kenyon

Ian R. Kenyon 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: 5300236
    Abstract: A particulate composition useful in the softening of fabrics from a wash liquor, the composition comprising a fabric softening clay material and a nonionic surfactant system which consists of one or more nonionic surfactants, wherein the nonionic surfactant system exists as a cloudy phase, at 1% concentration in water, somewhere in the range of 0.degree. C. to 80.degree. C., the weight ratio of the clay to the nonionic surfactant system is from 2:3 to 20:1, and the moisture content of the composition, as measured by the water loss at 135.degree. C., is from 7.5% to 12% by weight.
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: April 5, 1994
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Fabrizio Bortolotti, David G. Evans, Ian R. Kenyon
  • Patent number: 5209857
    Abstract: A detergent composition for washing and softening fabrics comprising at least one detergent active material and, as a fabric softening agent, a smectite clay mineral which is a 2:1 layer phyllosilicate possessing a lattice charge deficiency in the range of 0.2 to 0.4 g equivalents per half unit cell.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: May 11, 1993
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Ian R. Kenyon, Robin S. Heslam, William D. Emery, Hermes J. Murakami
  • Patent number: 4970028
    Abstract: A detergent composition for softening fabrics while maintaining good detergency comprises a fatty amine such as di tallow methyl tertiary amine and a nonionic surfactant with a low cloud point, such as an ethoxylated fatty alcohol with 3 moles of ethylene oxide per molecule.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: November 13, 1990
    Assignee: Lever Brothers Company
    Inventors: Ian R. Kenyon, Bryan C. Smith
  • Patent number: 4961866
    Abstract: A particulate composition useful in the softening of fabrics from a wash liquor, especially in the form of a fabric washing product, comprises a fabric softening clay in intimate contact with a nonionic surfactant system which has a cloud point below 80.degree. C. The clay/nonionic weight ratio is from 2:3 to 20:1. A typical nonionic surfactant is a fatty alcohol with a low degree of ethoxylation, such as a C.sub.13-15 alcohol with 3 ethylene oxide groups per molecule.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: October 9, 1990
    Assignee: Lever Brothers Company
    Inventors: Ian R. Kenyon, Bryan C. Smith
  • Patent number: 4956112
    Abstract: A particulate composition useful in the softening of fabrics from a wash liquor, especially in the form of a fabric washing product, comprises a fabric softening clay and a nonionic surfactant system which has a cloud point below 15.degree. C. The clay/nonionic weight ratio is from 2:3 to 20:1. A typical nonionic surfactant is a fatty alcohol with a low degree of ethoxylation, such as a C.sub.13-15 alcohol with 3 ethylene oxide groups per molecule.
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: September 11, 1990
    Assignee: Lever Brothers Company
    Inventors: Ian R. Kenyon, Bryan C. Smith
  • Patent number: 4882074
    Abstract: A particulate composition for softening textile fabrics in the wash comprises:(a) from 5 to 30% by weight of a primary, secondary or tertiary amine capable of softening fabrics, sorbed onto(b) from 70 to 95% by weight of a particulate carrier comprising a porous crystal-growth-modified carbonate-based salt.The preferred particulate carrier is the sodium carbonate/sodium sulphate double salt Burkeite modified by means of a polymeric polycarboxylate. The softening composition may be incorporated in a detergent powder, suitably in an amount providing from 0.5 to 15% by weight of amine in the total powder.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: November 21, 1989
    Assignee: Lever Brothers Company
    Inventors: Ian R. Kenyon, Peter J. Russell, Thomas Taylor