Compositions – Oxidative bleachant – oxidant containing – or generative – Contains activator admixed with inorganic peroxide
Patent
1999-12-27
2000-12-12
Anthony, Joseph D.
Compositions
Oxidative bleachant, oxidant containing, or generative
Contains activator admixed with inorganic peroxide
25218639, 510312, 510313, C09K 300, C11D 339, C11D 718, C11D 738
Patent
active
061593915
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a hydrogen peroxide bleaching agent composition having excellent bleaching power. The bleaching agent composition of the present invention is used for the purpose of cleaning, bleaching, disinfecting/sterilizing, and deodorizing, in particular, it is favorably used for removing and bleaching mildew.
BACKGROUND ART
Bleaching agents and fungicides can be divided into chlorine bleaching agents and peroxide bleaching agents. The chlorine bleaching agents containing sodium hypochlorite as their main component have been used for bleaching clothes, or bleaching mildew on the walls of a house or on furniture since they nave high bleaching power. However, though the chlorine bleaching agents have excellent bleaching power, since they discolor the clothes, they are not appropriate for bleaching dyed or patterned cloths. They also have defects that they generate a peculiar odor due to the molecular chlorine, and give unpleasant feel to the users, and that they may cause chlorine gas poisoning if they are misused.
On the other hand, peroxide bleaching agents have a broader range of use application as a bleaching agent than that of the chlorine bleaching agents, and have no unpleasant smell, thus the usage thereof, particularly that of the household bleaching agent has been increased. But, peroxides alone have poorer bleaching power in comparison with the chlorine bleaching agents, and the bleaching power thereof is not sufficient for bleaching the clothes at a low temperature, or for bleaching mildew and the like, which is attached on walls of a house or on furniture, in particular, on the bathroom walls, kitchen counter, ceiling or tile joints and the like.
Accordingly, peroxides such as hydrogen peroxide, sodium carbonate-hydrogen peroxide adduct, and sodium perborate have been conventionally used together with N-acyl compounds such as tetraacetylethylenediamine (TAED), tetraacetylglycoluryl (TAGU), and esters such as glucose pentaacetate and saccharose octaacetate, to improve the bleaching power. Various nitrile compounds have been also proposed as a bleach activating agent for improving the bleaching power of the peroxides. For example, various nitrites have been proposed as a useful bleach activating agent in United Kingdom Patent No. 802,035, iminodiacetonitrile has been proposed as a useful bleach activating agent in U.S. Pat. No. 3,882,035, and p-chlorobenzoyl cyanamide has been proposed as a useful bleach activating agent in Japanese Patent Application Laid-Open No. 52-52880.
However, even though these activating agents are used together with the peroxides, the bleaching of clothes can not be carried out sufficiently at a low temperature, and the bleaching effect on the mildew in a house has been insufficient as well. Besides, acetylamide compounds such as TAED and acetyl esters such as glucose pentaacetate have a drawback that they react with hydrogen peroxide to generate peracetic acid and produce a peculiar odor.
DISCLOSURE OF INVENTION
An object of the present invention is to provide a bleaching agent composition which has an excellent effect in bleaching clothes and the like, exercises excellent bleaching power to the mildew generated on walls of a house or on furniture, and which does not have an odor.
As a result of their intensive study on the above-mentioned problems, the present inventors found that a bleaching agent composition comprising (A) hydrogen peroxide or a peroxide which generates hydrogen peroxide in an aqueous solution, and (B) an addition reaction product of dicyandiamide and a glycidyl ether compound, wherein the pH value of the mixed aqueous solution of the component (A) and the component (B) becomes at least 7.5, has a very high activity in the bleaching of clothes and the bleaching of mildew grown on the walls of a house and the like, and has no irritating smell, and completed the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
As hydrogen peroxide or a peroxide to generate hydrogen peroxide, a commercially available
REFERENCES:
patent: 3882035 (1975-05-01), Loffelman et al.
patent: 4025453 (1977-05-01), Kravetz et al.
patent: 4199466 (1980-04-01), Benson, Jr.
Article Entitled: "Mechanism of the Tertiary Amine-Catalyzed Dicyandiamide Cure of Epoxy Resins", by Saunders et al. Maker from Journal of Polymer Science, Part-1, vol. 5, pp. 1609-1617 (1967).
Hiro Yasuo
Kobayashi Tsuneo
Kokubu Jun
Kuriyama Yasuhisa
Mikami Masahito
Anthony Joseph D.
S. C. Johnson & Son Inc.
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