Controlled release preparations of active materials

Details Controlled release preparations of active materials Controlled release preparations of active materials

1991-09-23

1994-06-14

Page, Thurman K.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Aftertreated polymer

424 7821, 424484, 424485, A61K 3174, C08F 3402

Patent

active

053208374

ABSTRACT:
A controlled release preparation of an active material comprising a reaction product obtained by reacting (a) a copolymer consisting essentially of maleic anhydride and at least one polyalkylene glycol ether represented by formula (I): ##STR1## wherein B represents a residue of a compound having from 2 to 8 hydroxyl groups; R.sup.1 represents an alkenyl group having from 2 to 5 carbon atoms; AO represents an oxyalkylene group having from 2 to 18 carbon atoms or a combination thereof which may be linked together in blocks or at random; R.sup.2 represents a hydrocarbon group having from 1 to 24 carbon atoms; a represents a positive integer, b and c each represents 0 or a positive integer, and a+b+c=2 to 8; l.gtoreq.0, m.gtoreq.0, n.gtoreq.0, and l+m+n =1 to 1000; and (b) an active material. The preparation is soluble both in water and in an organic solvent and exhibits activity for a prolonged period of time.

REFERENCES:
Takaheshi et al. (1984), Biochemical and Biophysical Res. Comm., vol. 121, 261-265.
N.Y. Acad. Sciences (1985), pp. 160-181.

Affiliated with

Also associated with

Rating

Controlled release preparations of active materials does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled release preparations of active materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled release preparations of active materials will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1247584