Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1995-08-09
1997-12-30
Jagannathan, Vasu
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
523102, 524423, 524425, C08J 510, C08K 310, C08L 2304
Patent
active
057031525
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a deodorizing composition and a deodorzing resin composition each containing an iron (II) compound.
BACKGROUND ART
Hitherto, paints have been generally applied to ceilings, interior walls, floors or the like surfaces of buildings or houses for the purpose of beauty and protection thereof. No paints have been known which have a function of deodorization. If a deodorizing property is imparted to a paint to be applied to interior walls, ceilings and floors, then it is possible to deodorize and clean the rooms. This is apparently desirable from the stand point of living environment maintenance.
A liquid deodorizing composition containing an iron (II) compound and a chelating agent dissolved in water is known (JP-A-60-145143 and JP-A-211240). In use, the deodorzing composition is sprayed over a source of bad odors. Alternatively, a liquid absorbing paper-like body, such as wall paper, or a porous material, such as activated carbon or zeolite, is impregnated with the deodorizing composition. There have been no proposals to use such a composition as a paint.
The known deodorizing composition containing an iron (II) compound and a chelating agent is reactive with bad odor substances such as ammonia, amines, hydrogen sulfide, mercaptans. Thus, when air containing odorous substances is contacted with the composition, the substances are reacted with the deodorizing composition and are removed from the air to give odorless air.
The function of the deodorizing composition to remove bad, odor substances is, however, not effective for the removal of a bad odor substance which does not react with ferrous ion. Further, the known composition has a drawback that coloring and precipitation are caused upon reaction with odorous substances.
It is, therefore, a primary object of the present invention to provide a deodorizing composition which contains an iron (II) compound and a chelating agent and which can effectively capture odorous substances that are inert to ferrous ion.
Another object of the present invention is to provide a deodorizing composition which contains an iron (II) compound and a chelating agent and which is substantially free of coloration upon reaction with bad odor substances.
It is a further object of the present invention to provide a deodorizing resin composition containing an iron (II) compound.
It is yet a further object of the present invention to provide a deodorizing paint composition containing an iron (II) compound.
It is yet a further object of the present invention to provide a deodorizing ink composition containing an iron (II) compound.
It is yet a further object of the present invention to provide a deodorizing resin molding composition containing an iron (II) compound.
It is yet a further object of the present invention to provide a deodorizing resin molded article containing an iron (II) compound.
Further objects of the present invention will be easily understood from the description of the present specification.
DISCLOSURE OF THE INVENTION
The present inventor has made an intensive study with a view toward accomplishing the foregoing objects and has completed the present invention.
In accordance with the present invention, there is provided a deodorizing composition comprising an aqueous slurry including an iron (II) compound, a chelating agent, a porous substance and water, wherein the amount of said chelating agent is at least one equivalent per equivalent of said iron (II) compound and wherein the amount of said porous substance is at least 0.5 part by weight per part by weight of said iron (II) compound.
The present invention also provides a deodorizing resin composition comprising an aqueous slurry including an iron (II) compound, a chelating agent, a porous substance, a resin and water, wherein the amount of said chelating agent is at least one equivalent per equivalent of said iron (II) compound and wherein the amount of said porous substance is at least 0.5 part by weight per part by weight of said iron (II) compound.
The present inve
REFERENCES:
patent: 4735972 (1988-04-01), Shigematso et al.
patent: 5015668 (1991-05-01), Ueda et al.
patent: 5534165 (1996-07-01), Pilosof et al.
Jagannathan Vasu
Minato Company, Ltd.
Rajguru U. K.
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