Isobutylene polymer active compound release systems

Details Isobutylene polymer active compound release systems Isobutylene polymer active compound release systems

1984-11-27

1986-11-18

Lieberman, Allan

Surgery

Controlled release therapeutic device or system

Osmotic or diffusion pumped device or system

604897, A61K 960, A61K 970, A61L 1500

Patent

active

046233466

ABSTRACT:
In a therapeutic system such as a plaster for administration of an active compound through the skin and comprising a covering layer which is essentially impermeable to the active compound an active compound reservoir layer and a protective layer which can be pulled off and which is essentially impermeable to the active compound, the improvement wherein the reservoir layer contains about 1-30% of active compound in an elastomer mixture comprising at least one of polyisobutylene, polybutadiene oil and paraffin oil, and a tackifying resin. Thereby the active compound can be released in regulated relatively large quantity over a prolonged period of time.

REFERENCES:
patent: 3996934 (1976-12-01), Zafforoni
patent: 4031894 (1977-06-01), Urguhart et al.
patent: 4201211 (1980-05-01), Chandrasekoran et al.
patent: 4455146 (1984-06-01), Noda et al.

Affiliated with

Also associated with

Rating

Isobutylene polymer active compound release systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Isobutylene polymer active compound release systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isobutylene polymer active compound release systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1615578