Patents by Inventor Ashutosh H. Sharma

Ashutosh H. Sharma 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).

  • Patent number: 7842630
    Abstract: The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 12 to 15 carbon atoms, or is straight or branched chain alkenyl of 12 to 18 carbon atoms. The alkyl metal sulfonates are present from about 2% to about 5% by weight based on the weight of the polyester. A post treatment step such as an alkaline treatment step is not included. The melt extrusion mixtures do not include certain additives such as polyoxyalkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: November 30, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Colin J. H. Morton, Thomas Thompson, Ashutosh H. Sharma
  • Publication number: 20080176475
    Abstract: The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more additives selected from the group consisting of a) phenylalkyl-oxy-alkyl metal sulfonates of the formula b) alkyl-oxy-alkyl metal sulfonates of the formula c) polyethyleneoxy-alkyl metal sulfonates of the formula d) alkyl-polyethyleneoxy-alkyl metal sulfonates of the formula and e) alkyl-1,2-disulfonate metal sulfonates where m is 0, 1 or 2, n is an integer from 1 to 6, p is an integer from 1 to 16, R is alkyl of 1 to 24 carbon atoms and M is Na, K or Li. into a plurality of fibers or filaments and cooling the fibers or filaments.
    Type: Application
    Filed: January 23, 2008
    Publication date: July 24, 2008
    Inventors: Suhas D. Sahasrabudhe, Paragkumar N. Thanki, Archana K. Desai, Vinayak M. Kavitkar, Matthew E. Gande, Andrew J. Leggio, Ashutosh H. Sharma
  • Patent number: 7390574
    Abstract: Polyolefin substrates, for example polypropylene, polyethylene or thermoplastic olefin molded parts, are made scratch resistant by the incorporation therein of an additive combination of a maleated alpha-olefin functionalized with a long chain alcohol or long chain amine and a primary or secondary fatty acid amide. The present polyolefins exhibit good weatherability, scratch resistance, good processability, good mechanical strength, good gloss retention and are non-sticky. The functionalized maleated alpha-olefin is for example the ester or half ester of maleated C18-C26 alpha-olefin with tallow fatty alcohol. The fatty acid amide is for example oleyl palmitamide or stearyl erucamide.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: June 24, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Ashutosh H. Sharma
  • Patent number: 7314839
    Abstract: The present invention is aimed at a method of providing wettability to polyester fibers or filaments, to woven or nonwoven fabrics made therefrom and to resultant articles of manufacture. The method comprises melt extruding a mixture comprising a polyester and one or more alkyl metal sulfonates where the metal is Na, Li or K and the alkyl is straight or branched chain alkyl of 12 to 15 carbon atoms, or is straight or branched chain alkenyl of 12 to 18 carbon atoms. The alkyl metal sulfonates are present from about 2% to about 5% by weight based on the weight of the polyester. A post treatment step such as an alkaline treatment step is not included. The melt extrusion mixtures do not include certain additives such as polyoxyalkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: January 1, 2008
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Colin J. H. Morton, Thomas Thompson, Ashutosh H. Sharma
  • Patent number: 5166435
    Abstract: The present invention relates to a process for the preparation of organic hydroxylamines as a result of the corresponding nitroderivative being hydrogenated in the presence of an inert solvent, a platinum catalyst, a nitrogen-containing base (in an amount of less than 10% by weight calculated on the amount of nitro derivative) and a tri- or pentavalent organic phosphorus compound. It has been found that if only use is made of the nitrogen-containing base or the phosphorus compound the yields of isolated hydroxyl amine are significantly reduced in comparison with those obtained with the present process.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: November 24, 1992
    Assignee: Akzo N.V.
    Inventors: Ashutosh H. Sharma, Peter Hope
  • Patent number: 4855346
    Abstract: There are disclosed novel compounds of the formula: ##STR1## wherein n=0 or 1, R.sub.1 is selected from the group consisting of a hydrogen atom, straight chain and branched chain alkyl groups and alkoxy groups, and cycloalkyl groups and cycloalkoxy groups having 5 to 8 carbon atoms, R.sub.2 is selected from the group consisting of lower alkyl groups having 1 to 5 carbon atoms, X is an oxygen atom if n=0 or a nitrogen atom if n=1, Y is selected from the group consisting of a hydrogen atom, straight chain and branched chain alkyl groups having 1 to 18 carbon atoms, cycloalkyl groups having 5 to 8 carbon atoms, alkenyl groups having 3 to 18 carbon atoms, phenyl groups, alkylphenyl groups having 7 to 14 carbon atoms and aralkyl groups having 7 to 15 carbon atoms, and R.sub.3 is selected from the same group as Y, or together with X and Y forms part of a heterocyclic ring composed of 5 or 6 atoms in which X is the hetero-nitrogen atom.
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: August 8, 1989
    Assignee: Akzona Incorporated
    Inventors: Paul K. Battey, Peter Hope, Ashutosh H. Sharma