Detergent bar containing poly(epsilon caprolactone) and aromatizing agent
US4469613A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1983 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Feb 23, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/041
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Described is the use of homopolymers of (epsilon caprolactone) defined according to the structure: ##STR1## as controlled release materials for physiological or psychological diagnostic compositions, pheromones, 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, pheromones, 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…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.