Slow-releasing medicated resin moldings, and process for producing the same
AssigneeSumitomo Chemical Company, Limited
InventorsTakashi Chinuki, Tatsuhiro Nagamatsu, Tomomi Satoh
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Abstract
Disclosed in this invention are the slow-releasing medicated resin moldings which are the porous bodies obtained by stretching 1.1-10 times the resin compositions comprising 100 parts by weight of a thermoplastic resin, 50 to 400 parts by weight of a filler and a drug(s) in an amount not less than the saturation dissolution rate for the thermoplastic resin, and a process for producing such slow-releasing medicated resin moldings.
Claims11
A slow-releasing medicated resin molding, wherein an organic drug selected from the group consisting of insecticides, antifungal agents, repellents, germicides, rust inhibitors, aromatics and mixtures thereof is contained in a porous resin molding obtained by stretching 1.1-10 times a resin composition comprising 100 parts by weight of a thermoplastic resin selected from the group consisting of .alpha.-olefin homopolymers, copolymers of ethylene and at least One a-olefin selected from .alpha.-olefins having 3 to 18 carbon atoms copolymers of propylene, ethylene and/or butene-1, copolymers of ethylene, vinyl acetate and/or organic carboxylic acid derivatives having ethylenic unsaturated bonds and 50 to 400 parts by weight of a filler selected from the group consisting of carbonates, sulfates, phosphates, hydroxides, oxides, chlorides, inorganic fillers, cellulose powders, synthetic resin powders and organic fillers, the amount of the drug being not less than the saturation dissolution rate for the thermoplastic resin.
Dependencies are inferred from the claim text.