Acid anhydrides as rate controlling agents for the erosion...

Details Acid anhydrides as rate controlling agents for the erosion... Acid anhydrides as rate controlling agents for the erosion...

A - Human Necessities

61

K

167/166

A61K 9/22 (2006.01) A01N 25/10 (2006.01) A61K 9/20 (2006.01) A61K 9/26 (2006.01) A61K 9/52 (2006.01) C08G 67/04 (2006.01) C08L 73/02 (2006.01)

Patent

CA 1210330

TITLE OF THE INVENTION ACID ANHYDRIDES AS RATE CONTROLLING AGENT FOR THE EROSION OF POLYMERS WHICH LATTER POLYMERS HAVE BENEFICIAL SUBSTANCES DISPERSED THROUGHOUT THEIR MATRIX OR WHERE THE POLYMER MATRIX SURROUNDS THE BENEFICIAL SUBSTANCE ABSTRACT OF THE INVENTION The invention relates to the use of an acid anhydride incorporated as a latentiated catalyst in poly(ortho ester) and other polymers such that upon exposure to aqueous environments the acid anhydride generates the corresponding acid which catalyzes the matrix erosion. The releasing rate of a loaded drug substance incorporated into or surrounded by the poly(ortho ester) or other polymers can be controlled in that the drug is released as the poly(ortho ester)s or other polymer is eroded by action of the acid anhydride incorporated therein.

431332

Affiliated with

Also associated with

Rating

Acid anhydrides as rate controlling agents for the erosion... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acid anhydrides as rate controlling agents for the erosion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acid anhydrides as rate controlling agents for the erosion... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1267416