Patents by Inventor Urvil B. Shah

Urvil B. Shah 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: 8158731
    Abstract: The present disclosure is directed to polymer blends comprising a biopolymer and a substituted or unsubstituted aliphatic polyester. The aliphatic polyester comprises repeating units derivable from a substituted or unsubstituted aliphatic diacid, repeating units derivable from a substituted or unsubstituted aliphatic diol, and one or two terminator units derivable from a substituted or unsubstituted aliphatic alcohol. The polymer blends disclosed herein provide improved flexibility, and are useful, for example, in the production of packaging materials, industrial products, durable goods, and the like.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: April 17, 2012
    Assignee: Hallstar Innovations Corp.
    Inventors: Kimberly L. Stefanisin, Urvil B. Shah, Stephen O'Rourke, Gary Wentworth
  • Publication number: 20110184094
    Abstract: The present disclosure is directed to polymer blends comprising a biopolymer and a substituted or unsubstituted aliphatic polyester. The aliphatic polyester comprises repeating units derivable from a substituted or unsubstituted aliphatic diacid, repeating units derivable from a substituted or unsubstituted aliphatic diol, and one or two terminator units derivable from a substituted or unsubstituted aliphatic alcohol. The polymer blends disclosed herein provide improved flexibility, and are useful, for example, in the production of packaging materials, industrial products, durable goods, and the like.
    Type: Application
    Filed: January 27, 2010
    Publication date: July 28, 2011
    Applicant: HALLSTAR INNOVATIONS CORP.
    Inventors: Kimberly L. Stefanisin, Urvil B. Shah, Stephen O'Rourke, Gary Wentworth
  • Patent number: 7544350
    Abstract: A method of decreasing the UV light degradation of a UV-light degradable polymer comprising adding to said polymer an effective amount of a compound of formula (IX): wherein, R19, R20 and R21 are the same or different and are selected from the group consisting of C1-C30 alkyl, C3-C8 cycloalkyl, substituted alkyl, substituted cycloalkyl, ester, aryl, heteroaryl, heterocycloalkyl, substituted aryl, substituted heteroaryl, substituted heterocycloalkyl, and amino; R17 and R23 are the same or different and are selected from the group consisting of C1-C30 alkyl, C3-C8 cycloalkyl, substituted alkyl, substituted cycloalkyl, ester, aryl, heteroaryl, heterocycloalkyl, substituted aryl, substituted heteroaryl, substituted heterocycloalkyl, cyano, and amino; R18 and R22 are the same or different and are selected from the group consisting of substituted diphenylmethylene, unsubstituted diphenylmethylene, substituted 9H-fluorene, and unsubstituted 9H-fluorene; t and u are each in the range of 1 to 100; s is in the rang
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: June 9, 2009
    Assignee: Hallstar Innovations Corp.
    Inventors: Craig A. Bonda, Stephen O'Rourke, Anna Pavlovic, Urvil B. Shah
  • Patent number: 7232855
    Abstract: A thermoplastic polymer/elastomer composite composition including one or more thermoplastic polymers, a natural or synthetic rubber, and a long chain cyclic dimerate ester and/or long chain cyclic trimerate ester plasticizer.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: June 19, 2007
    Assignee: CPH Innovations Corp.
    Inventors: Stephen O'Rourke, Kimberly L. Stefanisin, Gary Wentworth, Urvil B. Shah, Yen Vu
  • Patent number: 7109264
    Abstract: An elastomeric composition including a natural or synthetic rubber, and a cyclic dimerate ester and/or a cyclic trimerate ester plasticizer.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: September 19, 2006
    Assignee: CPH Innovations Corp.
    Inventors: Stephen E. O'Rourke, Kimberly L. Stefanisin, Gary Wentworth, Urvil B. Shah
  • Patent number: 6962692
    Abstract: Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives, and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene. Synergistic combinations of the polymer with (1) diesters or polyesters of a naphthalene dicarboxylic acid, or (2) oxybenzone enhance the photostability of sunscreen compositions containing a photodegradable sunscreen active compound, such as avobenzone.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: November 8, 2005
    Assignee: CPH Innovations Corp.
    Inventors: Craig A. Bonda, Anna Pavlovic, Urvil B. Shah
  • Patent number: 6800274
    Abstract: Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives, and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: October 5, 2004
    Assignee: The C.P. Hall Company
    Inventors: Craig A. Bonda, Anna B. Pavlovic, Urvil B. Shah
  • Publication number: 20040072934
    Abstract: An elastomeric composition including a natural or synthetic rubber, and a cyclic dimerate ester and/or a cyclic trimerate ester plasticizer.
    Type: Application
    Filed: July 10, 2003
    Publication date: April 15, 2004
    Applicant: The C.P. Hall Company
    Inventors: Stephen E. O'Rourke, Kimberly L. Stefanisin, Gary Wentworth, Urvil B. Shah
  • Publication number: 20040057914
    Abstract: Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives, and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene.
    Type: Application
    Filed: November 22, 2002
    Publication date: March 25, 2004
    Inventors: Craig A. Bonda, Anna B. Pavlovic, Urvil B. Shah
  • Publication number: 20040057916
    Abstract: Polymers and compounds including a diphenylmethylene or a 9H-fluorene moiety; and sunscreen compositions including a mixture of a photoactive compound and any one of the foregoing derivatives are disclosed herein. Also disclosed are methods for stabilizing a sunscreen composition by the addition of one or more of the foregoing derivatives, methods of filtering out ultra-violet light from a substrate by the use of one or more such derivatives; and methods for terminating a polymerization reaction by the addition of derivatives of diphenylmethylene and/or 9H-fluorene. Synergistic combinations of the polymer with (1) diesters or polyesters of a naphthalene dicarboxylic acid, or (2) oxybenzone enhance the photostability of sunscreen compositions containing a photodegradable sunscreen active compound, such as avobenzone.
    Type: Application
    Filed: March 11, 2003
    Publication date: March 25, 2004
    Applicant: THE C.P. HALL COMPANY
    Inventors: Craig A. Bonda, Anna Pavlovic, Urvil B. Shah
  • Patent number: 6485713
    Abstract: A method of preparing a sunscreen including a solvent system and a filter system, the method including the step of controlling the polarity of the solvent system to control the rate of photodecay of the filter system, as well as sunscreen compositions and compounds for producing sunscreen compositions, are disclosed.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: November 26, 2002
    Assignee: The C. P. Hall Company
    Inventors: Craig A. Bonda, Urvil B. Shah, Robert J. Mcmillin, Magda M. Roth
  • Patent number: 6355261
    Abstract: The compounds of formula (I), suitable solvents for the compounds, and use of the compounds as waxes, UV absorbers, and skin conditioners is disclosed. A compound of formula (I) is a wax at room temperature, absorbs UVA and UVB radiation, and boosts the sun protection factor of sunscreen compositions. The compounds of formula (I) have utility in a variety of cosmetics and other compositions including waxes for coating, polishing, and sealing, textile and leather manufacture, adhesives, and crafts. The compounds of formula (I) also have utility in the treatment of skin conditions including acne, psoriasis, seborrheic dermatitis, dandruff, warts, corns, calluses, ringworm infection, wrinkling, yellowing, leatheriness, mottling, and hyperpigmentation.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: March 12, 2002
    Assignee: The C. P. Hall Company
    Inventors: Craig A. Bonda, Urvil B. Shah, Peter J. Marinelli