Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Deodorizing
Reexamination Certificate
1998-12-01
2002-03-19
McKane, Elizabeth (Department: 1744)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Deodorizing
C424S076100, C424S076210, C424S076500, C424S641000
Reexamination Certificate
active
06358469
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to as aqueous formulation that substantially reduces odors. In particular, the invention relates to an aqueous solution of divalent metal ions, most preferably zinc ions, and an anionic alkoxy carboxylate/carboxylic acid surfactant.
2. Related Background
Offensive odors are a common problem. For example, offensive odors can emanate from contaminant materials, decaying materials, or incompatible materials. Even when such materials have been substantially removed, offensive odors can continue to be noticeable because of the high olfactory sensitivity of people. Further, offensive odors are caused by a variety of materials in a variety of environments. Thus, different deodorizing applications have varying requirements. Accordingly, there is a continuing need for deodorizing compositions to substantially eliminate offensive odors.
Attempts to ameliorate offensive odors include the use of perfumes to mask such malodors. U.S. Pat. No. 5,490,982 describes a cosmetic microemulsion compositions that is formed by two immiscible liquid phases containing isoeicosane, water, a fragrance, and a fatty glyceride ester alkoxylated with alkylene oxide such as alkylene oxide alkoxylated caprylic/capric fatty glyceride ester. U.S. Pat. No. 4,938,416 describes a water based fragrance dispersion that includes a fragrance oil and a fragrance enhancer such as an alcohol, ester, ketone, aldehyde, acid, terpene, ether, or other complex materials. A preferable nonionic surfactant such as nonylphenol polyoxyethylene or polyoxyethylene sorbitan monooleate can be included.
Other attempts to form a composition that deodorizes include U.S. Pat. No. 5,076,960 which describes an aqueous composition containing alkali metal halogenites such as sodium chlorite, a salt of a transition or post transition metal such as zinc chloride, and an alcohol to assist in stabilizing the sodium chlorite. The composition can include a perfume, in which case the perfume can be stabilized against the alkali metal halogenite by the use of an anionic surfactant. U.S. Pat. No. 4,963,287 also describes a cleaner composition which includes an alkali metal halogenite, a perfume, and an anionic surfactant to stabilize the perfume. International Patent Publication WO 95/15186 and European Patent Publication EP 0 401 140 B1 describe deodorizing compositions containing aldehydes.
U.S. Pat. No. 4,840,792 describes a composition for neutralizing bad smells utilizing a compound that is an aliphatic alcohol, aldehyde, aliphatic ketone, aliphatic ester, aromatic lactone, phenol, aromatic ether, amine, or an aromatic amine. U.S. Pat. Nos. 4,946,672 and 4,818,524 describe deodorizing compositions containing imino (HN═) moieties such a polymeric biguanide. U.S. Pat. No. 3,172,817 describes deodorizing compositions containing a beta-diketone.
British Patent No. 941,105, and U.S. Pat. Nos. 2,544,093, and 3,074,891 describe deodorizing compositions containing esters of alpha,beta-unsaturated monocarboxylic acids. U.S. Pat. No. 5,089,258 describes deodorizing compositions containing citric acid and a monovalent salt of citric acid. U.S. Pat. No. 5,211,870 describes deodorizing compositions containing a zeolite. International Patent Publication No. WO 91/12029 describes deodorizing compositions containing zeolite and an absorbent gelling material.
U.S. Pat. No. 4,983,578 describes deodorizing compositions containing hydroxyphosphoric acid, polyalkylene glycol alkyl ether, alcohol,and perfume. U.S. Pat. No. 4,909,986 describes aqueous deodorizing compositions containing a water-soluble organic polymer having a carboxyl group and its ammonium salt. Organic monobasic acids and their salts may be included. The salts may include alkali metal salts, calcium salts, iron salts, ammonium salts and alkanol/alkanol-amine salts.
Insect repellents can present unpleasant odors. Further, repellents can be more effective if the applied surface is better coated. Accordingly, repellant compositions can contain perfumes and surfactants. U.S. Pat. Nos. 4,696,676, 4,933,371, and 5,196,200 describe repellents formed from alcohols such as 1-nonen-3-ol and linalool, while U.S. Pat. No. 4,449,987 describes a fragrant insect repellent composition that includes methyl heptenone, coumarin, and an indole. Perfumes and surfactants may be included in these insect repellant compositions.
European Patent Publication 0 386 714 describes the use of monoterpenes such as borneol, isoborneol, camphor, and isobornyl acetate as a deodorizer and insect repellant.
Deodorants can be in the form of an aerosol composition. U.S. Pat. No. 3,159,535 describes an aerosol composition that is a liquid/liquid/gas three phase composition which includes an emulsifier which can be anionic, cationic or nonionic. Particularly suitable emulsifiers include long chain fatty acid esters of polyhydrocylic compounds such as the glycol, glycerol and sorbitol esters of oleic, stearic, palmitic and lauric acids; and ethoxylated fatty acids and amides. U.S. Pat. No. 3,974,270 describes an aerosol composition using a water soluble poly-lower alkoxylated cetyl alcohol such as cetyl propoxylate as a vehicle for aluminum chlorhydrate. European Patent Publication No. 0 032 779 describes water-based aerosol compositions containing dimethylether, perfume, and an ethylene oxide/propylene oxide block copolymer surfactant.
Zinc compounds have been used in oral and dental compositions to reduce calculus formation and to inhibit offensive mouth odors. U.S. Pat. No. 4,469,674 describes a composition containing zinc salt and a soluble ionic fluoride salt. U.S. Pat. No. 4,325,939 describes a composition containing an alkali metal zinc citrate or ammonium zinc citrate.
U.S. Pat. No. 4,138,477 describes a composition, to control mouth odors, containing a combination formed from a zinc salt and an anionic polymer. The anionic polymer includes carboxyl, sulfonic or phosphonic acid groups with which the zinc ion reacts.
Many attempts to control odor utilize cyclodextrin or derivatives of cyclodextrin. U.S. Pat. Nos. 3,426,011, 3,453,257, 3,453,258, 3,553,191, 3,565,887, 4,535,152, 4,638,058, 4,616,008, 4,678,598, 4,727,824, 4,746,734, 5,102,564, 5,234,610, 5,234,611, 5,578,563, 5,593,670, 5,663,134, 5,668,097, 5,714,137, 5,783,544, Japanese Patent Nos. JP 58-124452, JP 61-128973, JP 63-164953, JP 3-170415, JP 2-251681, JP 1-256597, JP 1-256596, and JP 3-284616, and International Patent Publications WO 89/02698 and WO 96/04940 describe particular perfumes, cyclodextrins, derivatives of cyclodextrin, and various compositions containing cyclodextrins, and/or its derivatives. Additional ingredients such as metallic salts such as zinc salts, anionic polymeric soil release agents, alkali carbonates and bicarbonates, clays, and surfactants are also described. U.S. Pat. No. 5,663,134 states, however, that when metallic salts such as zinc salts are utilized, anionic surfactants are not preferred because water-insoluble salts can form.
As described above, surfactants are desirably included in deodorizing compositions used for many applications to assist in forming a complete, uniform coverage of the malodorous substrate by the applied composition. Surfactants can be described as cationic, nonionic, or anionic in accordance with their ionic properties, well known to one in the art. Anionic surfactants have a negative valence charge and are generally provided in association with a cation. When divalent cationic zinc is used in deodorizing compositions, nonionic or cationic surfactants are conventionally used in order to assure that the zinc ions remain in solution.
U.S. Pat. No. 4,902,434 describes a dry granular composition, for the neutralization of odors and the removal of soil, formed from a divalent transition metal salt coated onto a solid inorganic granular carrier effective to bound malodorous materials to the surface of the carrier which then can be removed along with the dry granular carrier. Anionic surfactants such as sodium lauryl sulfate and magne
Brun Anne M.
Rees Wayne M.
McKane Elizabeth
S. C. Johnson & Son Inc.
LandOfFree
Odor eliminating aqueous formulation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Odor eliminating aqueous formulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Odor eliminating aqueous formulation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2846139