Patents by Inventor Janine Andrea Preston

Janine Andrea Preston 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: 8993112
    Abstract: Polymeric particles comprising a polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., wherein secondary particles are distributed throughout the matrix, in which the secondary particles comprise a hydrophobic polymer that has been formed from an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C. and optionally other monomers, which hydrophobic polymer is different from the polymeric matrix. Also claimed is a process for preparing particles. The particles have improved shatter resistance. Preferably the polymeric particles comprise an active ingredient, especially a colorant.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: March 31, 2015
    Assignee: BASF SE
    Inventors: Stewart Todd Elder, Christina Ligia Andrianov, Kishor Kumar Mistry, Janine Andrea Preston, Mark Christopher Baxter
  • Patent number: 7947294
    Abstract: The present invention relates to personal care or cosmetic compositions that contain a shatter-resistant blend of microencapsulated colorants that can produce a natural, textured tone effect. A method for cosmetic treatment comprises application of such personal care or cosmetic compositions onto at least a part of the body.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 24, 2011
    Assignee: BASF SE
    Inventors: Todd Elder, Christina Ligia Andrianov, Kishor Kumar Mistry, Janine Andrea Preston, Mark Christopher Baxter
  • Patent number: 7648715
    Abstract: Polymeric particles comprising a polymeric matrix and colourant distributed throughout the matrix, wherein the polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an ethylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C., and in which the first monomer is a salt of a volatile counterion component, characterized in that the polymeric matrix is impermeable to the colourant The particles obtainable by the process of the invention can be used in a variety of industrial processes, for instance in the manufacture of inks, paper and cosmetics.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: January 19, 2010
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Kishor Kumar Mistry, Kenneth Charles Symes, Janine Andrea Preston
  • Publication number: 20040152618
    Abstract: A particulate composition comprising particles having a polymeric matrix including a fabric conditioning active ingredient and wherein the polymeric matrix is formed of a co-polymer of (a) an ethylenically unsaturated hydrophobic monomer with (b) a free base monomer. Preferably the composition is comprised in a detergent concentrate in which the particles are dispersed wherein the fabric conditioner is not released in the concentrate or during the wash cycle of a laundry operation but is released during the rinse cycle of said laundry operation.
    Type: Application
    Filed: December 4, 2003
    Publication date: August 5, 2004
    Inventors: Kishor Kumar Mistry, Bryan David Grey, Helen Marie Clare Coulter, Janine Andrea Preston
  • Publication number: 20040136933
    Abstract: Polymeric particles comprising a polymeric matrix and colourant distributed throughout the matrix, wherein the polymeric matrix that has been formed from a blend of monomers comprising a first monomer which is an etnylenically unsaturated ionic monomer and a second monomer which is an ethylenically unsaturated hydrophobic monomer which is capable of forming a homopolymer of glass transition temperature in excess of 50° C, and in which the first monomer is a salt of a volatile counterion component, characterised in that the polymeric matrix is impermeable to the colourant The particles obtainable by the process of the invention can be used in a variety of industrial processes, for instance in the manufacture of inks, paper and cosmetics.
    Type: Application
    Filed: October 20, 2003
    Publication date: July 15, 2004
    Inventors: Kishor Kumar Mistry, Kenneth Charles Symes, Janine Andrea Preston
  • Patent number: 6753083
    Abstract: A particulate composition comprising particles having a core comprising a hydrophobic polymer within a shell, characterised in that the shell comprises a semi-permeable membrane. Particulate composition can be used for making a stable dispersion of particles uniformly distributed throughout a first hydrophobic liquid, wherein the particles comprise a core within a shell and the core comprises a hydrophobic polymer into has been imbibed a second hydrophobic liquid, Compositions can be used to encapsulate active substances and may be used in sustained release mechanisms.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: June 22, 2004
    Assignee: Ciba Specialty Chemicals Water Treatments Ltd.
    Inventors: Kishor Kumar Mistry, Janine Andrea Preston, Kenneth Charles Symes
  • Publication number: 20020058732
    Abstract: A particulate composition comprising particles having a core comprising a hydrophobic polymer within a shell, characterised in that the shell comprises a semi-permeable membrane. Particulate composition can be used for making a stable dispersion of particles uniformly distributed throughout a first hydrophobic liquid, wherein the particles comprise a core within a shell and the core comprises a hydrophobic polymer into has been imbibed a second hydrophobic liquid, Compositions can be used to encapsulate active substances and may be used in sustained release mechanisms.
    Type: Application
    Filed: October 18, 2001
    Publication date: May 16, 2002
    Inventors: Kishor Kumar Mistry, Janine Andrea Preston, Kenneth Charles Symes