Water-dispersible polymeric compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

106170, 106169, 106180, 106194, 106198, 1061972, 524311, 427 3, G08L 128, A61K 932

Patent

active

049608142

ABSTRACT:
Disclosed is a process for preparing polymeric compositions which are suitable for coating medicaments or for use in cosmetic formulations and the novel compositions prepared therefrom. The process makes stable, colloidal, latex-like dispersions of coating polymers which can be readily dried to form polymeric powder materials. The process makes use of a novel combination of a water-in-oil emulsifier and an oil-in-water emulsifier.

REFERENCES:
patent: 2196768 (1940-04-01), Hiatt
patent: 2718667 (1955-09-01), Malm et al.
patent: 2776904 (1957-01-01), Brown
patent: 2881085 (1959-04-01), Endicott et al.
patent: 3504082 (1970-03-01), Malm et al.
patent: 3577514 (1971-05-01), Robinson
patent: 3733294 (1973-05-01), Keown
patent: 4017647 (1977-04-01), Ohno et al.
patent: 4177177 (1979-12-01), Vanderhoff et al.
patent: 4177255 (1979-12-01), Dannelly
patent: 4330338 (1982-05-01), Banker
patent: 4365028 (1982-12-01), Leep et al.
patent: 4385078 (1983-05-01), Onda et al.
patent: 4428926 (1984-01-01), Keith
patent: 4462839 (1984-07-01), McGinley et al.
patent: 4518433 (1985-05-01), McGinley et al.
patent: 4543370 (1985-09-01), Porter et al.
patent: 4600645 (1986-07-01), Ghebre-Sellassie et al.
patent: 4647610 (1987-03-01), Sperry et al.
patent: 4661162 (1987-04-01), Kurihara et al.
Bulletin 268 of Witco Chemical, Mar. 1978, entitled EMPHOS.TM. D70-30C G. S. Banker and G. E. Peck, "The New, Water-Based Colloidal Dispersions," Pharmaceutical Technology, 5(4), 53-61 (1981).
R. E. Pondell, "From Solvent to Aqueous Coatings," Drug Development and Industrial Pharmacy, 10(2), 191-202 (1984).
M. B. Davis, G. E. Peck and G. S. Banker, "Preparation and Stability of Aqueous-Based Enteric Polymer Dispersions," Drug Development and Industrial Pharmacy 12(10), 1419-1448 (1986).
F. Gumowski, E. Doelker, and R. Gurny, "The Use of a New Redispersible Aqueous Enteric Coating Material," Pharmaceutical Technology, 11(2), 26-32 (1987).
R. K. Chang, C. H. Hsiao, and J. R. Robinson, "A Review of Aqueous Coating Techniques and Preliminary Data on Release from a Theophylline Product," Pharmaceutical Technology, 11(3), 56-68 (1987).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-292965

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.