Method for producing specific crystalline modifications of...

Details Method for producing specific crystalline modifications of... Method for producing specific crystalline modifications of...

2007-05-01

2007-05-01

Page, Turman (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Sulfur containing

Reexamination Certificate

active

10515431

ABSTRACT:
The present invention pertains to a process for the production of a specific crystal modification of a polymorphic, organic substance by precipitation of the specific crystal modification from the aqueous solution of the salt of the polymorphic substances using ordinary water-soluble organic solvents as additives as well as an acid or base.

REFERENCES:
patent: 4695673 (1987-09-01), Heather et al.
patent: 5716445 (1998-02-01), Stirling et al.
patent: 5939555 (1999-08-01), Foguet et al.
patent: 5959108 (1999-09-01), Bauer et al.
patent: 6350871 (2002-02-01), Sanderson et al.
patent: 6809206 (2004-10-01), Wojtkowski
patent: 101 52 459 (2003-05-01), None
patent: 137 963 (2001-04-01), None
patent: 01/10830 (2001-02-01), None
patent: 01/64672 (2001-09-01), None
Angew. Chem. Int. Ed. 338, (month unavailable) 1999, pp. 3440-3461, J. Bernstein et al, “Concomitant Polymorphs”.
J. Pharm. Sci. 58, Aug. 1969, pp. 911-929, J. Haleblian et al, “Journal of Pharmaceutical” Pharmaceutical Applications of Polymorphism.
Powder Technology, 121, (month unavailable) 2001, pp. 46-52, Nicholas Blagden, “Crystal engineering of polymorph appearance: the case of sulphathiazole”.
Crystal Growth & Design, vol. 1, No. 1, (month unavailable) 2001, pp. 59-65, R.J. Davey et al, “Crystal Polymorphism as a Probe for Molecular Self-Assembly during Nucleation from Solutions: The Case of 2,6-Dihydroxybenzoic Acid”.

Affiliated with

Also associated with

Rating

Method for producing specific crystalline modifications of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for producing specific crystalline modifications of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing specific crystalline modifications of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3760009