04548764 is referenced by 29 patents and cites 31 patents.

Described is the use of homopolymers of (epsilon caprolactone) defined according to the structure: ##STR1## and, optionally, ##STR2## as controlled release materials for physiological or psychological diagnostic compositions, pheremones, insect repellent compositions, animal repellent compositions, and/or aroma augmenting or enhancing media for use in perfume compositions or perfumed articles or colognes; wherein n represents an integer of from about 500 up to about 1,200 with the proviso that the average "n" varies from about 600 up to about 800. Also described are mixtures of such homopolymers with other polymers such as polyethylene, polypropylene, mixtures of polyethylene and polyvinyl acetate, copolymers of ethylene and vinyl acetate, and the like, useful for controlled release of such physiological or psychological diagnostic compositions, pheremones, insect repellents, animal repellents and perfume materials into a gaseous environment surrounding the polymer matrix. Also described are methods for blending such polycaprolactone homopolymers whereby a first amount of a liquified polycaprolactone is admixed in an extruder, for example, with a diagnostic material and/or scent imparting material and/or an animal repellent material and/or insect repellent material and/or a pheremone material. The solidified pellets may if desired, then be mixed in, for example, a second extruder with a second amount of unscented polycaprolactone or other polymer, e.g., polyolefin, the second amount of polymer being the same or somewhat larger then the first amount. The mixture thus obtained may again be solidified and, if desired, repelletized. The resulting pellets may, if desired, be formed into functional articles by means of, for example, injection molding.

Title
Insect repellent, pheremonal, animal repellent, diagnostic or aroma enhancing compositions containing poly(epsilon caprolactone) having embedded therein functional substances
Application Number
468997
Publication Number
4548764
Application Date
July 31, 1984
Publication Date
October 22, 1985
Inventor
Craig B Warren
Rumson
NJ, US
Leon Shechter
Summit
NJ, US
Edward S Oltarzewski
Mercerville
NJ, US
Marina A Munteanu
New York
NY, US
Agent
Arthur L Liberman
Assignee
International Flavors & Fragrances
NY, US
IPC
C11D 3/50
C11D 3/48
B01D 47/04
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