Monomer Containing At Least Two Carboxylic Acid Or Derivative Groups Patents (Class 524/854)
  • Resin-forming material, implant material and compositions for restorative material suitable for medical or dental use
    Patent number: 4327014
    Abstract: Resin-forming material suitable for medical or dental use comprising tetramethylolmethane tri- or tetracrylate or tetramethylolmethane tri- or tetramethacrylate; and implant material suitable for medical or dental use comprising nitride of at least one member of metal selected from the group consisting of Group IVB, Group VB and Group VIB in the periodic table of elements and boron, aluminum and silicon and having Mohs' scale of hardness of at least 7.
    Type: Grant
    Filed: April 9, 1980
    Date of Patent: April 27, 1982
    Assignee: Kanebo Ltd.
    Inventors: Haruyuki Kawahara, Teruo Makita, Shozo Kudo, Takashi Funakoshi
  • Dental compositions
    Patent number: 4323348
    Abstract: The invention relates to the provision of dental compositions containing a polymerizable (meth)acrylic acid ester of the formula Id as defined herein and includes methods for filling or repairing teeth in warm-blooded animals.
    Type: Grant
    Filed: July 31, 1980
    Date of Patent: April 6, 1982
    Assignee: Bayer Aktiengesellschaft
    Inventors: Robert Schmitz-Josten, Manfred Borgardt, Hans-Hermann Schulz, Michael Walkowiak