Bone replacement compound comprising poly(polypropylene fumarate

Details Bone replacement compound comprising poly(polypropylene fumarate Bone replacement compound comprising poly(polypropylene fumarate

1999-04-09

2000-09-26

Merriam, Andrew E. C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523113, 524539, 528272, 424 7831, 424423, 424426, C08L 6706

Patent

active

061243736

ABSTRACT:
A method for controlling the gel point of a bone cement containing poly(polypropylene fumarate), a cross-linking monomer, an initiator, an inorganic filler, and a radical initiator. The gel point is controlled by varying the molecular weight of the poly(polypropylene fumarate) while maintaining the weight average molecular weight (M.sub.w) of the poly(polypropylene fumarate) above 2000 and the polydispersity index of the poly(polypropylene fumarate) below 2. In a preferred embodiment, the molecular weight of the poly(polypropylene fumarate) greater than 4000, and more preferably greater than 5000.

REFERENCES:
patent: 5286763 (1994-02-01), Gerhart et al.
patent: 5644005 (1997-07-01), Suggs et al.
patent: 5733951 (1998-03-01), Yaszemski et al.

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