Cleaning compositions for solid surfaces – auxiliary compositions – With oxygen – halogen – sulfur – or nitrogen containing or... – Carboxylic or thiocarboxylic ester function in the component
Patent
1999-02-19
2000-11-21
Hardee, John R.
Cleaning compositions for solid surfaces, auxiliary compositions
With oxygen, halogen, sulfur, or nitrogen containing or...
Carboxylic or thiocarboxylic ester function in the component
510101, 510276, C11D 320
Patent
active
06150310&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to laundry detergent compositions comprising .beta.-ketoester pro-fragrance compounds which release fragrance raw material alcohols thereby providing a "freshness" or "clean" scent to fabric. The present invention also relates to a method for providing a fragrance benefit to laundered fabric by contacting soiled fabric with a laundry detergent composition described herein.
BACKGROUND OF THE INVENTION
In addition to the removal of stains, dirt, soil, grime, and grease from fabric, laundry detergent formulators have attempted to deliver a "fresh" or "clean" odor to washed clothing to provide an olfactory aesthetic benefit and to serve as a signal that the product is effective. Laundry detergent compositions, including rinse-added fabric softeners and dryer-added substrates, are currently formulated with perfume and fragrance ingredients which are aesthetically pleasing to the consumer but which fail to deliver a prolonged "fragrance" or "pleasurable smell" to the finished, cleaned fabric.
Among the most readily perceived fragrance materials are the perfume "top" and "middle" notes which are highly volatile compounds and which are usually detectable at low levels. However, these highly volatile materials are typically lost either during the prolonged heating which takes place in an automatic dryer or they lack the substantivity necessary to deposit onto the fabric surface and are therefore lost during the laundry rinsing process.
Attempts have been made to deliver perfume ingredients, especially fragrance raw material alcohols, onto fabric which can survive the laundry rinsing and drying cycles and therefore provide a residual "fresh" or "clean" odor to the washed material. However, none of these attempts have suitably provided fabric with a protracted release of fragrance raw materials which provide a "fresh" or "clean" smell for a period up to two weeks after washing.
Accordingly, there remains a need in the art for a fragrance delivery system wherein fragrance raw material alcohols are delivered to fabric by way of a laundry detergent composition which provides the cleaned clothing or fabric with a "fresh" or "clean" smell for a period up to two weeks after washing.
BACKGROUND ART
The following relate to the subject matter of fragrance ingredients. U.S. Pat. No. 5,626,852 Suffis et al, issued May 6, 1997; U.S. Pat. No. 5,232,612 Trinh et al, issued Aug. 3, 1996; U.S. Pat. No. 5,506,201 McDermott et al., issued Apr. 9, 1996; U.S. Pat. No. 5,378,468 Suffis et al., issued Jan. 3, 1995; U.S. Pat. No. 5,266,592 Grub et al., issued Nov. 30, 1993; U.S. Pat. No. 5,081,111 Akimoto et al., issued Jan. 14, 1992; U.S. Pat. No. 4,994,266 Wells, issued Feb. 19, 1991; U.S. Pat. No. 4,524,018 Yemoto et al., issued Jun. 18, 1985; U.S. Pat. No. 3,849,326 Jaggers et al, issued Nov. 19, 1974; U.S. Pat. No. 3,779,932 Jaggers et al., issued Dec. 18, 1973; JP 07-179,328 published Jul. 18, 1995; JP 05-230496 published Sep. 7, 1993; WO 96/14827 published May 23, 1996; WO 95/04,809 published Feb. 16, 1995; and WO 95/16660 published Jun. 22, 1995. In addition, P. M. Muller, D. Lamparsky Perfumes Art, Science, & Technology Blackie Academic & Professional, (New York, 1994) is included herein by reference.
SUMMARY OF THE INVENTION
The present invention meets the aforementioned needs in that it has been surprisingly discovered that fragrance raw materials can be delivered onto fabric "through the wash" by way of a fragrance delivery system comprised of single precursor pro-fragrance or pro-accord compounds having high fabric substantivity and that these compounds release fragrance raw materials thereby imparting a "fresh" or "clean" aesthetic odor benefit to the fabric. In addition to the short-term pleasurable odor benefits, the pro-fragrances or pro-accords according to the present invention continue to release their fragrance raw materials for as long as several weeks depending upon the structure of the pro-fragrance.
The pro-fragrances and pro-accords described herein co
REFERENCES:
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patent: 4994266 (1991-02-01), Wells
patent: 5081111 (1992-01-01), Akimoto et al.
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patent: 5506201 (1996-04-01), McDermott et al.
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Chemical Abstracts, vol. 117, 69416.
Chemical Abstracts, vol. 119, 278389.
Costa Jill Bonham
Morelli Joseph Paul
Severns John Cort
Sivik Mark Robert
Echler, Sr. Richard S.
Hardee John R.
Rasser Jacobus C.
The Procter & Gamble & Company
Zerby Kim W.
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