Patents by Inventor Christian R. Barrat

Christian R. Barrat 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: 4714565
    Abstract: Homogeneous concentrated liquid detergent compositions containing specific monoesters of dicarboxylic acids are disclosed. Substantial levels of nonionic surfactants are present. Preferred compositions additionally contain low levels of oleic acid.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: December 22, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Jean Wevers, Christian R. Barrat, Frederick E. Hardy
  • Patent number: 4639321
    Abstract: Liquid detergent compositions containing additive levels of organo-functional polysiloxanes are disclosed. The siloxanes are derived from poly-di-short-alkyl siloxanes by substituting part of the alkyl moieties by specific organo-functional groups, preferably amino-groups, with the proviso that the degree of substitution is in the range from 0.01-0.7. The liquid compositions herein unexpectedly provide through-the-wash softening benefits comparable to what can be obtained from the utilization of conventional cationic rinse-softeners.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: January 27, 1987
    Assignee: The Procter and Gamble Company
    Inventors: Christian R. Barrat, Alfred Busch, Kosmas Sardelis
  • Patent number: 4548757
    Abstract: Aqueous solutions of aminomethylenephosphonic acid, chiefly diethylenetriaminepenta(methylenephosphonic acid), are disclosed containing a crystallization inhibitor which is an alkali-metal salt of an organic carboxylic acid and residual hydrochloric acid originating from the manufacturing process. The equivalent molar concentration ratio of carboxylic acid salt to hydrochloric acid is greater than 1, preferably from 1.5 to 3.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: October 22, 1985
    Assignee: The Procter & Gamble Company
    Inventors: Jean Wevers, Hubert Ernst, Stephen Cassidy, Christian R. Barrat
  • Patent number: 4448699
    Abstract: Laundry additive products having improved machine compatibility containing specific amino-silanes. A preferred execution of the technology is a combination of a flexible substrate and the amino-silane. The claimed additives provide enhanced machine protection especially in relation to enamel coated surfaces.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: May 15, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Christian R. Barrat, John R. Walker, Jean Wevers
  • Patent number: 4446035
    Abstract: Compositions of matter useful in the manufacture of superior cleaning and fabric treating compositions, bleaches, and the like, comprise amino-silane compounds in combination with ingredients such as cationic fabric softeners, or detersive surfactants, or bleach or the like.Such compositions are especially useful in aqueous fabric laundering baths and in combined fabric drying/softening operations since the amino-silane provides a protective effect to the surface of the washing machine or dryer. The compositions are also useful in the formulation of porcelain-safe toilet cleaners, machine- and hand-dishwashing compositions that protect fine chinaware, and for similar uses wherein silicate or metal surfaces come in contact with harsh chemicals, especially in the presence of hot water.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: May 1, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Christian R. Barrat, John R. Walker, Jean Wevers
  • Patent number: 4446033
    Abstract: Fabric conditioning compositions containing an active component and liquid or solid diluents and furthermore a low level of amino-silane components are disclosed. Preferred executions highlight fabric softener compositions, particularly liquid rinse softener compositions. The amino-silanes provide enhanced washing machine compatibility especially in relation to enamel-coated surfaces.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: May 1, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Christian R. Barrat, John R. Walker, Jean Wevers
  • Patent number: 4416794
    Abstract: A liquid rinse aid for use in automatic dishwashing machines comprises a low foaming ethoxylated nonionic surfactant, an organic chelating agent, a hydrotrope-water solubilizing system and 0.05-10%, by weight of the rinse aid, of an amino-silane.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: November 22, 1983
    Assignee: The Procter & Gamble Company
    Inventors: Christian R. Barrat, John R. Walker, Jean Wevers
  • Patent number: 4416793
    Abstract: Neutral to alkaline liquid detergent compositions containing organic surface-active agents, optionally detergent builders, and additive levels of particular amino-silanes are disclosed. These compositions provide outstanding washing machine compatibility, particularly if the detergent is used in conjunction with enamel-coated surfaces.
    Type: Grant
    Filed: September 22, 1982
    Date of Patent: November 22, 1983
    Assignee: The Procter & Gamble Company
    Inventors: Christian R. Barrat, John R. Walker, Jean Wevers
  • Patent number: 4287082
    Abstract: Homogeneous aqueous enzyme-containing liquid detergent compositions containing substantial levels of saturated fatty acids, minute amounts of enzyme-accessible calcium, and additive levels of selected short chain carboxylic acids are disclosed. These compositions exhibit a broad range of stability benefits with respect to the activity of the individual ingredients as well as in respect to homegeneity.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: September 1, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Flavio Tolfo, Christian R. Barrat
  • Patent number: 4285841
    Abstract: Builder-free highly concentrated homogeneous fatty acid containing liquid detergent compositions are disclosed. The surface-active system in addition to the fatty acids also contains substantial amounts of anionic sulfonate/sulfate detergents and nonionic ethoxylates. The compositions are mildly acid to neutral and are capable of providing unexpectedly superior textile cleaning benefits, especially on oily and bleach sensitive soils.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: August 25, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Christian R. Barrat, Jean Wevers, Robertus J. C. Koster
  • Patent number: 4147649
    Abstract: Concentrated, stable, liquid, heavy duty detergent composition containing an ethoxylate of a primary alcohol of from 14 to 22 carbon atoms and of at least 65% branched structure; an ethoxylate of a straight or branched, primary or secondary alcohol of 9 to 15 carbon atoms; a surfactant of the sulfonate type; and a liquid carrier. These compositions are especially adapted for stain and soil removal from fabrics, either by topical application to such fabrics prior to washing, or for a conventional fabric laundering.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: April 3, 1979
    Assignee: The Procter & Gamble Company
    Inventors: Jose L. Arnau, Christian R. Barrat, Jean Wevers
  • Patent number: 4110262
    Abstract: The present invention relates to liquid, concentrated, homogeneous, stable, heavy duty detergent compositions. Such compositions contain a polyethoxylated nonionic detergent compound, a minor amount of a polyacid having at least one pK value of at least 5.0, and a liquid carrier, whereby the pH of the liquid composition has a pH in the range between 6.0 and 7.5. The compositions can also contain mixtures of polyethoxylated nonionic detergent compounds, additional amounts of synthetic, anionic detergent compounds, minor amounts of brighteners, suds-regulating and pH-regulating agents, perfumes, dyes and other usual liquid detergent compound additives. Such compositions show enhanced cleaning performance, particularly on bleach-sensitive stains, and have excelled stability on storage.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: August 29, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Jose L. Arnau, Christian R. Barrat, Jean Wevers