Patents by Inventor Laila Raki

Laila Raki 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).

  • Controlled release of chemical admixtures
    Patent number: 8404041
    Abstract: A method of controlling release of an admixture in a cement-based composition involves intercalating an admixture (e.g. an accelerator, a set retarder, a superplasticizer) for the cement-based composition into a layered double hydroxide or mixture thereof. A cement-based composition prepared in such a manner and containing a cement-based material (e.g. cement, mortar or concrete) has better workability, especially in respect of slump-loss characteristics.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: March 26, 2013
    Assignee: National Research Council of Canada
    Inventors: Laila Raki, James J. Beaudoin
  • CONTROLLED RELEASE OF CHEMICAL ADMIXTURES
    Publication number: 20110083586
    Abstract: A method of controlling release of an admixture in a cement-based composition involves intercalating an admixture (e.g. an accelerator, a set retarder, a superplasticizer) for the cement-based composition into a layered double hydroxide or mixture thereof. A cement-based composition prepared in such a manner and containing a cement-based material (e.g. cement, mortar or concrete) has better workability, especially in respect of slump-loss characteristics.
    Type: Application
    Filed: December 16, 2010
    Publication date: April 14, 2011
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Laila RAKI, James J. BEAUDOIN
  • Controlled release of chemical admixtures
    Patent number: 7879146
    Abstract: A controlled release formulation for a cement-based composition can be produced by intercalating an admixture (e.g. an accelerator, a set retarder, a superplasticizer) for the cement-based composition into a layered inorganic material (e.g. a layered double hydroxide (LDH)). A cement-based composition containing a cement-based material (e.g. cement, mortar or concrete) and such a controlled release formulation has better workability, especially in respect of slump-loss characteristics. With such a formulation release of an admixture in a cement-based composition may be controlled.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: February 1, 2011
    Assignee: National Research Council of Canada
    Inventors: Laila Raki, James J. Beaudoin
  • Controlled release of chemical admixtures
    Publication number: 20070022916
    Abstract: A controlled release formulation for a cement-based composition can be produced by intercalating an admixture (e.g. an accelerator, a set retarder, a superplasticizer) for the cement-based composition into a layered inorganic material (e.g. a layered double hydroxide (LDH)). A cement-based composition containing a cement-based material (e.g. cement, mortar or concrete) and such a controlled release formulation has better workability, especially in respect of slump-loss characteristics. With such a formulation release of an admixture in a cement-based composition may be controlled.
    Type: Application
    Filed: July 27, 2006
    Publication date: February 1, 2007
    Inventors: Laila Raki, James Beaudoin