Plastic and nonmetallic article shaping or treating: processes – Random variegated coloring during molding – By compression in a closed mold cavity
Patent
1975-07-14
1977-07-05
White, Robert F.
Plastic and nonmetallic article shaping or treating: processes
Random variegated coloring during molding
By compression in a closed mold cavity
B29C 900
Patent
active
040340350
ABSTRACT:
Multitoned compressed tablet forms of pleasing and distinctive appearance are obtained in a single granulation and coloring step by treating an excipient mixture of microcrystalline cellulose and modified corn starch containing a therapeutically effective quantity of an active drug or drugs with a granulating solution containing a water soluble dye suitable for pharmaceutical application. Work-up of the wetted granulation by usual wet granulation techniques followed by compression of the finished granules results in a distinctive multitoned tablet form.
REFERENCES:
patent: 3436453 (1969-04-01), Vincent, Jr. et al.
patent: 3655852 (1972-04-01), Koff et al.
Restaino Frederick A.
Schwartz Joseph B.
Anderson Rudy J.
Hall James R.
Mahon Frank M.
Merck & Co. , Inc.
Westlake Harry E.
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