Patents by Inventor Milind V. Karkare

Milind V. Karkare 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).

  • Method for enhancing flexural bond strength mortar
    Publication number: 20040122144
    Abstract: Admixture or additive which provides water-repellency and flexural bond strength improvement in mortar, concrete, or cement, and particularly in masonry mortars. An exemplary admixture composition includes: (a) at least one C8-C30 fatty acid or a derivative thereof, such as a salt, ester, or triglyceride; and (b) a flexural bond strength enhancing material comprising a polymer having a backbone to which are attached carboxyl cement anchoring groups and oxyalkylene groups attached by linkages selected from the group consisting of an amide, an imide, and an ester. A preferred additive optionally includes an air entraining admixture for improving workability of a masonry mortar into which the fatty acid or derivative and the flexural bond strength enhancing material are added. A cementitious composition and method for enhancing water-repellency and flexural bond strength in a masonry mortar are also disclosed.
    Type: Application
    Filed: October 10, 2003
    Publication date: June 24, 2004
    Applicant: W.R. GRACE & CO.-CONN.
    Inventors: Milind V. Karkare, Chia-Chih Ou, Craig T. Walloch, Ara A. Jeknavorian
  • MORTAR ADMIXTURES AND METHOD OF PREPARING SAME
    Publication number: 20020005149
    Abstract: Admixture or additive which provides water-repellency and flexural bond strength improvement in mortar, concrete, or cement, and particularly in masonry mortars. An exemplary admixture composition includes: (a) at least one C8-C30 fatty acid or a derivative thereof, such as a salt, ester, or triglyceride; and (b) a flexural bond strength enhancing material comprising a polymer having a backbone to which are attached carboxyl cement anchoring groups and oxyalkylene groups attached by linkages selected from the group consisting of an amide, an imide, and an ester. A preferred additive optionally includes an air entraining admixture for improving workability of a masonry mortar into which the fatty acid or derivative and the flexural bond strength enhancing material are added. A cementitious composition and method for enhancing water-repellency and flexural bond strength in a masonry mortar are also disclosed.
    Type: Application
    Filed: May 25, 1999
    Publication date: January 17, 2002
    Inventors: MILIND V. KARKARE, CHIA-CHIH OU, CRAIG T. WALLOCH, ARA A. JEKNAVORIAN
  • Mortar admixtures and method of preparing same
    Patent number: 5736600
    Abstract: Additive which simultaneously provides water-repellency and flexural bond strength improvement in mortar, concrete, or cement. An exemplary composition include calcium stearate and a flexural bond strength enhancing material comprising a polymer having a backbone to which are attached carboxyl cement anchoring groups. A cementious composition and method for enhancing water-repellency and flexural bond strength in a mortar are also disclosed.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: April 7, 1998
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Milind V. Karkare, Chia-Chih Ou, Craig T. Walloch, Ara A. Jeknavorian