Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1982-02-03
1984-06-05
Schofer, Joseph L.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
524365, 524385, 524391, 524548, 524555, 524312, 424 33, B32B 516
Patent
active
044528620
ABSTRACT:
Coating materials for pharmaceutical dosage forms contain, besides the conventional liquid or solid additives for pharmaceutical coatings, a binder comprising a synthetic polymer, prepared by emulsion polymerization, having 5 to 100% by weight of units derived from monomers of the formula ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl group, R.sub.2 is an alkylene or aralkylene group having at least 3 carbon atoms in the chain between the amino nitrogen and the ester oxygen atom of which at least one is tertiary or quaternary, and R.sub.3 and R.sub.4 are lower alkyl radicals or together with the amino-nitrogen atom form a heteroaliphatic ring, and, optionally, additional comonomer units.
REFERENCES:
patent: 3959540 (1976-05-01), Leiberich et al.
patent: 4036768 (1977-07-01), Crawford et al.
patent: 4180519 (1979-12-01), Neel et al.
patent: 4234565 (1980-11-01), Flodin et al.
patent: 4297185 (1981-10-01), Cherreux et al.
patent: 4325862 (1982-04-01), Schuster
Dreher Dieter
Lehmann Klaus
Markert Gerhard
Rauch Hubert
Siol Werner
Lipman Bernard
Rohm GMBH Chemische Fabrik
Schofer Joseph L.
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