Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate
2006-04-25
2006-04-25
Goodrow, John L (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
C430S078000, C540S141000
Reexamination Certificate
active
07033716
ABSTRACT:
An amorphous mixture consisting essentially of TiOFPc and TiOPc and containing more than 75 weight percent of substantially chlorine-free TiOPc is produced by forming a mixture of crude crystalline TiOFPc and crude crystalline, substantially chlorine-free TiOPc that contains less than 80 weight percent TiOPc, treating the mixture under conditions effective to form a substantially amorphous mixture of TiOFPc and TiOPc containing less than 75 weight percent TiOPc, which is then treated with water, and dried. A further amount of crude crystalline, substantially chlorine-free TiOPc sufficient to form a new mixture containing more than 75 weight percent of substantially chlorine-free TiOPc is added, and the new mixture is converted to a substantially amorphous mixture of TiOFPc and TiOPc. A nanoparticulate cocrystalline composition is obtained by forming a slurry in an organic solvent of the dried substantially amorphous mixture, and wet milling the slurry to form the cocrystalline composition.
REFERENCES:
patent: 3589924 (1971-06-01), Giambalvo et al.
patent: 4555467 (1985-11-01), Hasegawa et al.
patent: 4701396 (1987-10-01), Hung et al.
patent: 4785999 (1988-11-01), Takijiri
patent: 4882427 (1989-11-01), Enokida et al.
patent: 4994566 (1991-02-01), Mimura et al.
patent: 5008173 (1991-04-01), Mimura et al.
patent: 5039586 (1991-08-01), Itami et al.
patent: 5055368 (1991-10-01), Nguyen et al.
patent: 5059355 (1991-10-01), Ono et al.
patent: 5112711 (1992-05-01), Nguyen et al.
patent: 5132197 (1992-07-01), Iuchi et al.
patent: 5166339 (1992-11-01), Duff et al.
patent: 5194354 (1993-03-01), Takai et al.
patent: 5206359 (1993-04-01), Mayo et al.
patent: 5238764 (1993-08-01), Molaire et al.
patent: 5238766 (1993-08-01), Molaire et al.
patent: 5523189 (1996-06-01), Molaire
patent: 5614342 (1997-03-01), Molaire et al.
patent: 5629418 (1997-05-01), Molaire et al.
patent: 5753395 (1998-05-01), Kinoshita et al.
patent: 5766810 (1998-06-01), Molaire et al.
patent: 5773181 (1998-06-01), Molaire et al.
Kaeding Jeanne E.
Molaire Michel F.
Zubil Theodore
Goodrow John L
Ruoff Carl F.
LandOfFree
Two-stage milling process for preparing cocrystals 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 Two-stage milling process for preparing cocrystals of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-stage milling process for preparing cocrystals of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3537935