Patents by Inventor Sigrid Diener

Sigrid Diener 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).

  • Aqueous stable suspensions of water insoluble silicates capable of binding calcium ions and their use for the production of washing and cleaning agents
    Patent number: 4671887
    Abstract: There is prepared an aqueous stable suspension of a water insoluble silicate capable of binding calcium ions and it is used for the production of washing and cleaning agents. The suspension contains in addition to water components A and B wherein component A is a silicate capable of binding calcium and having the formula(Cat.sub.2/n O).sub.x -Me.sub.2 O.sub.3 .multidot.(SiO.sub.2).sub.y Iand component B is a dispersing agent comprising a mixture of at least two fatty alcohols polyglycol ether based on isotridecyl alcohol or another aliphatic C.sub.13 alcohol and ethylene oxide having the following properties:(a) Fatty alcohol polyglycol ether having 4.5 to 5.5 EO units______________________________________ Turbidity point DIN 53917 56 to 60.degree. C. Solidification point +4 to -25.degree. C. Viscosity at 50.degree. C. 13 to 28 m Pas Density at 50.degree. C. 0.94 to 0.
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: June 9, 1987
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Diehl, Roland Bergmann, Gunter Stadtmuller, Sigrid Diener