Erodible device comprising surfactant for modifying the rate of

Details Erodible device comprising surfactant for modifying the rate of Erodible device comprising surfactant for modifying the rate of

1980-12-01

1982-03-30

Michl, Paul R.

Drug, bio-affecting and body treating compositions

Solid synthetic organic polymer as designated organic active...

Polymer from ethylenic monomers only

523105, 524612, 524161, 524156, 524397, 424 19, C08K 509

Patent

active

043223230

ABSTRACT:
An erodible device is disclosed for delivering an agent to an environment of use. The device comprises (1) a structure sized and adapted for placement in an environment of use, the structure comprising a poly(orthoester) or a poly(orthocarbonate) having a repeating mer consisting of hydrocarbon radical and a symmetrical dioxycarbon unit of the general formula: ##STR1## wherein R.sub.1 is a multivalent hydrocarbon radical, R.sub.2 and R.sub.3 are hydrocarbon radicals with at least one of R.sub.2 or R.sub.3 bonded to the dioxycarbon through an oxygen covalent bond, (2) a beneficial agent, and (3) a surfactant erosion rate modifier. The devices are useful for delivering numerous agents to many environments. A composition also is disclosed comprising a poly(orthoester) or a poly(orthocarbonate), and a surfactant.

REFERENCES:
patent: 3301824 (1967-01-01), Hostettler
patent: 3553117 (1971-01-01), Gutweiler
patent: 3652465 (1972-03-01), Takakura
patent: 3879348 (1975-04-01), Serini
patent: 4066747 (1978-01-01), Capozza
patent: 4079038 (1978-03-01), Choi
patent: 4119579 (1978-10-01), Capozza
patent: 4136252 (1979-01-01), Capozza
patent: 4140847 (1979-02-01), Orvik
patent: 4180646 (1979-12-01), Choi

Affiliated with

Also associated with

Rating

Erodible device comprising surfactant for modifying the rate 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 Erodible device comprising surfactant for modifying the rate of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erodible device comprising surfactant for modifying the rate of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-381640