A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
18/1166, 167/153
A61K 9/00 (2006.01) A01N 25/34 (2006.01) A61L 15/20 (2006.01) A61L 15/28 (2006.01) C08K 5/053 (2006.01)
Patent
CA 1211266
ABSTRACT The invention is concerned with a method of forming a semi-solid shaped article. The method of the invention comprises the steps of (a) forming a mixture comprising (i) a monomeric alicyclic or aliphatic polyhydroxy compound having at least one hydroxy group per 4 carbon atoms, with (ii) a polymeric polyhydroxy compound which is insoluble in the mono- meric polyhydroxy compound at room temperature, but is soluble therein at elevated temperatures; (b) forming a shaped article from the mixture; (c) heating the shaped article to a temperature at which the polymeric polyhydroxy compound dissolves in the monomeric poly- hydroxy compound; and (d) cooling the shaped article while maintaining the shape thereof. Steps (a) and (b) are effected at a temperature insufficient to dissolve the polymeric polyhydroxy compound in the monomeric polyhydroxy compound. The semi-solid material produced in accordance with the invention behaves like a solid in the sense that it retains its shape in the absence of chemical stress and resists deformation if mechanical stress is applied, and also exhibits elas- ticity if deformed and is restored in a substantial degree to its original shape if mechanical stress causing the deformation is released.
440776
Adnovum Ag
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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