Composition for the preparation of bone cement

Patent 4239113 Issued on December 16, 1980. Estimated Expiration Date:

June 1, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3922155

Biocompatible glass ceramic material
Patent #: 3981736
Issued on: 09/21/1976
Inventor: Broemer , et al.

Tooth-filling material based on synthetic plastics material
Patent #: 4001939
Issued on: 01/11/1977
Inventor: Gross

Glass ceramic as filler in polymerizable dental filling compositions Patent #: 4017454
Issued on: 04/12/1977
Inventor: Muller

Inventors

Assignee

Kulzer & Co. GmbH

Application

No. 05/911425 filed on 06/01/1978

US Classes:

206/568, Specified mixture components424/9.42, Transition, actinide, or lanthanide metal containing514/40, Two saccharide radicals bonded through only oxygen to 4- and 6- positions of the cyclohexyl ring523/118, Sealant or adhesive523/220, Process of forming a composition having two or more solid materials having defined physical dimensions or surface areas; or composition containing same524/494Material contains glass

Examiners

Primary: Marquis, Melvyn I.

Attorney, Agent or Firm

Frishauf, Holtz, Goodman & Woodward

International Classes

A61F 2/46 (20060101)
A61K 6/06 (20060101)
A61L 27/00 (20060101)
A61L 27/46 (20060101)
C08K 7/00 (20060101)
C08K 7/14 (20060101)
A61K 6/083 (20060101)
A61K 6/02 (20060101)
A61F 2/00 (20060101)
A61F 2/30 (20060101)

Foreign Application Priority Data

1977-06-02 DE

Abstract

A bone cement in pliable and moldable form which when applied to bone and cured has superior characteristics containing an admixture of methylmethacrylate copolymers, methylmethacrylate, and between 15 and 75% by weight of an inorganic composition of between about 90 and 99% of a bio-active glass ceramic powder having a particle size of 10-200 micrometer and between 1 and 10% of vitreous mineral fibers having a length of less than 20 mm. The composition also contains a curing catalyst and, preferably, an accelerator.