Controlled release compositions

Details Controlled release compositions Controlled release compositions

1980-12-10

1982-12-28

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

106170, 424 19, 536 84, 536 95, 536 96, C08B 1100

Patent

active

043663109

ABSTRACT:
Molecular coordination complexes are formed between a cellulose polymer and a non-polar solid aliphatic alcohol containing 8 to 18 carbon atoms optionally substituted with an aliphatic group containing 8 to 18 carbon atoms by solvating the polymer with a volatile polar solvent and reacting the solvated cellulose polymer directly with the aliphatic alcohol, preferably as a melt. The resulting composition may be dried. This constitutes the complex. The composition has utility as a matrix in controlled release formulations since it has a uniform porosity which may be varied.

REFERENCES:
patent: 3818107 (1974-06-01), Yolles
patent: 3899439 (1975-09-01), Mahlman
patent: 3988482 (1976-10-01), Higashiyama et al.
patent: 4137399 (1979-01-01), Hulsmann et al.
patent: 4226849 (1980-10-01), Schor
patent: 4235870 (1980-11-01), Leslie
patent: 4258179 (1981-03-01), Kawata et al.
patent: 4259314 (1981-03-01), Lowey
patent: 4259355 (1981-03-01), Marmo et al.
patent: 4264766 (1981-04-01), Fischer

Affiliated with

Also associated with

Rating

Controlled release compositions 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 compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled release compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1338144