JPH0416182B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a stabilized composition containing an iron() compound and having deodorizing and flame retardant properties. In recent years, the demand for antifouling, flame-retardant carpets, curtains, etc. has increased, and there is a demand for the development of inexpensive treatment agents that can meet this demand. For such indoor products, it would be very desirable if a treatment agent could be developed that can perform deodorizing and flame retardant treatments at the same time. The inventors of the present invention have conducted extensive research to develop a treatment agent that satisfies these demands, and have found that an aqueous solution containing ethylenediaminetetraacetic acid and alum along with an iron() compound is extremely stable over a long period of time. It has been found that it does not cause discoloration or precipitation, and has deodorizing and flame retardant properties. The present invention has been made based on this knowledge. That is, the present invention provides a composition characterized by containing ethylenediaminetetraacetic acid and miyonban together with an iron() compound. Examples of iron() compounds used in the compositions of the present invention include iron() inorganic salts such as ferrous sulfate, ferrous chloride, ferrous nitrate, ferrous bromide, and ferrous iodide. In addition, there are organic salts of iron such as ferrous gallate, ferrous malate, and ferrous fumarate. The iron () compound is not limited to those exemplified above, and any compound can be used as long as it dissolves in water and forms divalent iron ions. There are no particular restrictions on the alum, but potassium alum, ammonia alum, sodium alum, etc. are preferably used.
Particularly suitable is roasted alum. Further, as the ethylenediaminetetraacetic acid, sodium salt, potassium salt, etc. are preferably used. In the composition of the present invention, the ratio of iron() compound to alum is not particularly limited, but the weight ratio is 1:10 to 1:10.
A range of 10:1 is preferred, and a range of 1:1 to 10:5 is more preferred. This ratio is the application of this composition,
Furthermore, it varies depending on the form of use. In addition, the amount of ethylenediaminetetraacetic acid is preferably in the range of 0.01 to 20%, and 0.1 to 20%, based on the iron () compound.
A range of 5.0% is more preferred. By adding an appropriate amount of a polymer compound such as polyvinyl alcohol to the composition of the present invention, the surface texture when impregnated into paper or the like can be made fine. The composition of the present invention is prepared by once dissolving and mixing the above-mentioned components in a predetermined ratio in an aqueous solution. There are no particular restrictions on the form of the agent. For example, it may be made into an aqueous solution as it is, or it may be dried to form a powder or granules. When used as an aqueous solution, it can be applied at any concentration within the range of solubility in the ferrous compound. As the fixation material, boric acid, zeolite, etc. may be used in combination as appropriate. The preparation of the composition in this case can be, for example,
There is a method of preparing a supersaturated solution of a composition in which zeolite and boric acid are suspended or dissolved, cooling this to precipitate the composition, and separating and drying this precipitate. In this way, the composition of the present invention supported on zeolite or mixed with boric acid is obtained. The composition of the present invention is stabilized by combining alum with a ferrous compound-ethylenediaminetetraacetic acid compound system, and can remove malodorous substances such as ammonia, hydrogen sulfide, and mercaptans very efficiently. Furthermore, it has excellent flame retardant properties and can be incorporated into combustible materials such as paper, textiles, fibers, and wood to easily flameproof these objects. The composition of the present invention has both deodorizing and flame retardant effects and is extremely stable, so it is very easy to use and has a wide range of uses as a deodorizing and flame retardant. It can also be incorporated into animal feed, such as pet food, to exhibit the deodorizing effect of pet animal excrement, but in this case, the amount of ethylenediaminetetraacetic acid is determined within a relatively small range. This composition can be used, for example, by applying it as an aqueous solution to an object to be treated such as paper, resin products, textiles, fibers, wood, etc. by coating, spraying, dipping, or other treatments. In addition, in the processing of synthetic resins, it is used as a solid substance mixed into the resin in the same way as fillers, or in the case of foamed resins such as foamed urethane and styrene, it is mixed with a blowing agent during the foaming process and used in the resin. The content of the processing agent in the object to be treated varies depending on the purpose of treatment, use of the object, type, etc., but is usually preferably in the range of 5 to 70 parts by weight per 100 parts by weight of the object to be treated. Furthermore, the composition of the present invention is inexpensive, and by appropriately selecting the type of iron () compound and the amount of ethylenediaminetetraacetic acid, it has a practical advantage that it can be made into a composition that is safe from a food hygiene perspective. It also has advantages. Next, the present invention will be explained in more detail based on examples. Example 1 Preparation of aqueous solution 80 g of roasted alum was added to 1000 ml of water, dissolved at about 60°C, and then allowed to cool. ) was added and dissolved to prepare an aqueous solution (referred to as solution A). The aqueous solution was transparent and had a green color, and even after being left in open air for 30 days, the color did not change and no precipitate was observed. For comparison, an aqueous solution (referred to as solution B) in which ferrous sulfate heptahydrate and calcium disodium ethylenediaminetetraacetate were dissolved was prepared in the same manner as above except that baked alum was not added.
After just one day, the liquid turned brown, and from the second day onward, a precipitate was formed, and the color of the liquid turned even browner. Deodorizing and flame retardant test The deodorizing and flame retardant properties of the liquid A were tested. The impregnation rate of liquid A in each test is as follows. Filter paper: 35% Urethane foam: 40% [Deodorizing test] 100 ml of liquid A prepared above was placed in a beaker, and 1 to 13 ml of ammonia water (concentration 28%) was gradually added to test for the presence or absence of odor. The results are shown in Table 1.

【table】

Claims (1)

[Claims] 1. A composition comprising an iron() compound, ethylenediaminetetraacetic acid, and alum.