Non-destructive carriers for cyclodextrin complexes
Patent 5384186 Issued on January 24, 1995. Estimated Expiration Date: October 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
442/96, Coating or impregnation provides a fragrance or releases an odor intended to be perceptible to humans349/123, Alignment layer428/308.8, Void-containing component is wood or paper428/372, Including structurally defined particulate matter428/378, Coating on discrete and individual rods, strands or filaments428/402, Particulate matter (e.g., sphere, flake, etc.)428/905, ODOR RELEASING MATERIAL428/913, MATERIAL DESIGNED TO BE RESPONSIVE TO TEMPERATURE, LIGHT, MOISTURE, ETC.442/102, Coating or impregnation functions to soften the feel of or improve the "hand" of the fabric442/123, Coating or impregnation functions biologically (e.g., insect repellent, antiseptic, insecticide, bactericide, etc.)510/101WITH OXYGEN, HALOGEN, SULFUR, OR NITROGEN CONTAINING OR ETHYLENICALLY UNSATURATED COMPONENT WHICH IS A FRAGRANCE OR AROMA ENHANCER (E.G., PERFUME, ORGANOLEPTIC MATERIAL, ETC.)
Cyclodextrin complex is suspended in polyalkylene glycol carrier material that does not displace the included material. The preferred perfume/cyclodextrin complexes, either alone or admixed with solvent (e.g., water), are preferably suspended in the carrier and then incorporated into solid, dryer-activated, fabric treatment (conditioning) compositions, preferably containing fabric softeners, more preferably cationic and/or nonionic fabric softeners. The perfume complexes provide fabrics with perfume benefits when they are rewetted after drying. Volatile perfume materials, including those materials that are commonly associated with "freshness" can be applied to the fabrics in an effective way.
Other References
"Suppositories Containing Beta-Cyclodextrin Complexed," Szente et al., Pharmazie, vol. 39, pp. 697-699 (1984)
USSN 07/337,036 Gardlik et al., Apr. 12, 1989
USSN 07/337,037 Gardlik et al., Apr. 12, 1989
USSN 07/486,757 Trinh., Mar. 6, 1990
Product Data, American Maize-Products Company, "Preparation of Cyclodextrin Complexes"
Application of Cyclodextrins to Foods, Toiletries and Other Products in Japan, II. Hasimoto, Eusuiko Sugar Refining Co., Ltd. (1988)
Denpun Kagaku, vol. 36, No. 1, pp. 35-42 (1989) (Starch Science) Studies on the Industrial Production and Application of Cyclodextrins, Hashimot
October 19, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
