Patents by Inventor Vicky S. Cobb

Vicky S. Cobb 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).

  • Alkylhydrido siloxane fluids
    Patent number: 5493040
    Abstract: Describes alkylhydrido siloxanes RSi(OSiMe.sub.2 H).sub.3. Me is methyl and R is a C.sub.6 to C.sub.18 straight or branched-chain alkyl group.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 20, 1996
    Assignee: Dow Corning Corporation
    Inventors: Vicky S. Cobb, Gary E. Le Grow, Ann W. Norris, Donald E. Mc Vannel
  • Alkylpolyether siloxanes
    Patent number: 5488124
    Abstract: New alkylpolyether siloxanes are prepared by reacting an unsaturated ether with alkylhydrido siloxanes such as (i) comonomers RSi(OSiMe.sub.2 H).sub.3, (ii) oligomers (HMe.sub.2 SiO).sub.2 --Si(R)--O--Si(R)--(OSiMe.sub.2 H).sub.2, and (iii) higher molecular weight siloxane species RSi[(OSiMe.sub.2).sub.x OSiMe.sub.2 H].sub.3 and [HMe.sub.2 SiO(Me.sub.2 SiO).sub.x ].sub.2 Si(R)O(R)Si[(OSiMe.sub.2).sub.x OSiMe.sub.2 H].sub.2. R is a C.sub.2 to C.sub.18 straight-chain or branched-chain alkyl substituent.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: January 30, 1996
    Assignee: Dow Corning Corporation
    Inventors: Vicky S. Cobb, Beth I. Gutek, Gary E. Le Grow
  • Alkylhydrido siloxanes
    Patent number: 5446185
    Abstract: Alkylhydrido siloxane fluids including (i) comonomers of the formula RSi(OSiMe.sub.2 H).sub.3, (ii) oligomers of the formula (HMe.sub.2 SiO).sub.2 -Si(R)-O-Si(R)-(OSiMe.sub.2 H).sub.2, and (iii) higher molecular weight siloxane species of the formulas RSi[(OSiMe.sub.2).sub.x OSiMe.sub.2 H].sub.3 and [HMe.sub.2 SiO(Me.sub.2 SiO).sub.x ].sub.2 SiRORSi[(OSiMe.sub.2).sub.x OSiMe.sub.2 H].sub.2, are described in which Me is methyl, and R is a C.sub.2 to C.sub.18 straight-chain or branched-chain alkyl substituent. Methods of making the siloxane comonomers, oligomers, and higher molecular weight species, are also disclosed.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: August 29, 1995
    Assignee: Dow Corning Corporation
    Inventors: Vicky S. Cobb, Donald E. Mc Vannel, Ann W. Norris, Gary E. Legrow