Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1987-03-02
1988-03-08
Phillips, Delbert R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 58, 523105, 424427, 424428, A61K 922, C08L 126
Patent
active
047300132
ABSTRACT:
Ocular inserts with or without pharmacologically active agents comprising low molecular weight polymers have a lower propensity to cause blurred vision compared with inserts prepared from high molecular weight hydroxypropyl cellulose. When an enteric coating material is included as a constituent of the matrix there is provided a means for controlling and predicting dissolution rates of the insert to yield a prolonged residence time.
REFERENCES:
patent: 3968201 (1976-07-01), Ryde et al.
patent: 3993071 (1976-11-01), Higuchi et al.
patent: 4179497 (1979-12-01), Cohen et al.
patent: 4343787 (1982-08-01), Katz
Bondi Joseph V.
Harwood Richard J.
Merck & Co. , Inc.
Nicholson William H.
Nutter Nathan M.
Phillips Delbert R.
Sudol Michael C.
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