Patents Assigned to BioMat Sciences, Inc.
  • Patent number: 6664245
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: December 16, 2003
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Patent number: 6645952
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: November 11, 2003
    Assignee: Biomat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Patent number: 6605651
    Abstract: This invention provides a method and material compositions for producing objects containing in whole, or in part, biomedical polymers, especially those having dental use. Microwave sensitive material compositions are injected under pressure into a mold, the mold containing a replica of a body tissue or tissues. While hydraulic pressure is maintained on the material, a microwave source emits metered electromagnetic energy for hardening the material in the 3-dimensionally defined space. For dental and other applications, the mold making, injection and hardening are done sequentially to rapidly produce an object which accurately fits the mold.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: August 12, 2003
    Assignee: Biomat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu
  • Publication number: 20030118523
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Application
    Filed: January 10, 2003
    Publication date: June 26, 2003
    Applicant: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Publication number: 20030069326
    Abstract: This invention provides a method and material compositions for producing objects containing in whole, or in part, biomedical polymers, especially those having dental use. Microwave sensitive material compositions are injected under pressure into a mold, the mold containing a replica of a body tissue or tissues. While hydraulic pressure is maintained on the material, a microwave source emits metered electromagnetic energy for hardening the material in the 3-dimensionally defined space. For dental and other applications, the mold making, injection and hardening are done sequentially to rapidly produce an object which accurately fits the mold.
    Type: Application
    Filed: May 14, 2002
    Publication date: April 10, 2003
    Applicant: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu
  • Patent number: 6444724
    Abstract: Composite materials particularly suitable in the dental art as a tooth filling material including a polymer matrix, a metal, metal alloy, metal oxide particulate, or combinations thereof, in the presence or absence of colloidal silica, and a coupling agent to adhere the particulate to the polymer matrix. Adhesion can also be facilitated by cleaning and/or coating the particulates prior to incorporation into the polymer matrix. One or two paste systems of the composition with suitable initiators, accelerators, etc. can be formulated.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 3, 2002
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Thomas Ellis, Erik Kruus, Edward Sacher, Robin Drew, Jingwei Xu