Patents Represented by Attorney Matthew T. McDonald

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  • Detergent composition containing PVP and process of using same
    Patent number: 4954292
    Abstract: A detergent composition contains(i) an anionic detergent active material;(ii) polyvinyl pyrrolidone; and(iii) a nonionic material or a mixture of nonionic materials, the nonionic material or its mixture having an HLB of not more than 10.5The polyvinyl pyrrolidone and the nonionic material are present to reduce redeposition of suspended soil onto fabrics washed with this composition.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: September 4, 1990
    Assignee: Lever Brothers Co.
    Inventors: Michael Hull, Reginald V. Scowen