The oil filler-adhesive

 

(57) Abstract:

The oil filler-adhesive, including sodium carboxymethyl cellulose, natural drying oil, chalk and water, characterized in that it further contains an additive that increases resistance to fungal microflora in the form of soluble salts of chitosan selected from the range: hydrochloride, chitosan, chitosan sulfate, formate, chitosan, with the following ratios, wt. %: sodium carboxymethyl cellulose 1.3; natural drying oil 12,0; chalk 60,0; water-soluble salt of chitosan 0,01-01,00; water the rest. The technical result - protection putty from the damaging effects of microorganisms. table 2.

The invention relates to compositions of fillers used for leveling concrete and plastered surfaces before painting.

Putty called paste containing an adhesive substance with the solvent, which is added fillers, pigments, plasticizers and various polymer processing additives.

Appearance is homogeneous composition without clots, lumps. Putty must satisfactorily be applied with a spatula, not they minimize under it and not razvitiju fungal microflora. With this purpose in the formulation of coatings introducing various additives that increase the resistance to decay.

Thus, the composition of the filler include acidic mother liquor of Forasol, which further comprises hydrochloric acid, organic impurities and alkali (A. C. USSR N 587125, class C 04 B 26/00). Improved resistance to rotting of the filler due to the presence in the composition of the mother liquor of fluoride ions, which is antiseptic.

However, fluorine, being one of the strongest oxidizing agent that can cause lesions of the mucous membranes, irritate the respiratory system, may cause eczema. In this regard, using it as an antiseptic in the composition of the filler is not justified from the point of view of environmental safety.

The closest analogue of the proposed composition is a putty oil-adhesive, manufactured according to TU 205.11.426.-101-90 in of "Biysk paint plant".

The composition of the filler includes, in wt.%:

Sodium carboxymethyl cellulose THAT 6-55-40-90 - 1,3

The urea-formaldehyde resin K-412-01 TU 6-10-1494-80 - 0,5

The natural drying oil GOST 7931-76 to 12.0

Chalk natural powder brands MM-1; MM-2 OST 21-10-88 - 60,0

Water - the Rest

Putty has no high blagostoyaniya resin makes it non-conforming to the requirements of environmental safety.

An object of the invention is the protection of the putty from the damaging effects of microorganisms.

The problem is solved due to the fact that the oil filler-adhesive, including sodium carboxymethyl cellulose, natural drying oil, chalk and water, additionally contains an additive that improves the moisture resistance and resistance to fungal microflora in the form of soluble salts of chitosan selected from the range: hydrochloride, chitosan, chitosan sulfate, formate, chitosan, in the following ratio, wt.%:

Sodium salt of carboxymethyl - 1,3

Linseed oil is natural to 12.0

Chalk - 60,0

Water-soluble salt of chitosan - 0,01 - 1,00

Water - the Rest

Chitosan or poly[(1-4)-2-amino-2-deoxy--D-glucose] - product deep processing panzerjaeger raw materials (crabs, shrimps, and so on) produced according to TU 6-09-05-397-75. Is a homogeneous powder white or cream color without peculiar smell. Resistant to the action of light, oxygen, air, insoluble in water. Chitosan is a natural biopolymer that is widely used in medicine, cosmetics, food industry and agriculture. Has increased vlahou the>for chitosan is at the level of LD50for sucrose, or table salt. (J. Knapczyk Applications of chitosans in the dosage forms of drugs. // Polim. med. 1988. V 18. N 3. S. 178). Chitosan and its derivatives do not have any irritation or allergic effects on people.

The water-soluble salts of chitosan (chitosan hydrochloride, chitosan sulfate, formate, chitosan) are fine powders from white to light gray. Also, as the base material, they have a high moisture resistance and antibacterial activity. Well soluble in water.

Comparison of the proposed technical solution with the closest analogue shows that it is different from the latest introduction in the formulation famous oil-adhesive putty of the new component is a water - soluble salt of chitosan, i.e., this solution meets the criterion of "novelty".

In the technique known application of chitosan and its water-soluble salts in the formulations of anti musty drugs (Muzzarelli R. A. A. Chitin. London: Pergamon Press, 1977). However, none of them are suitable for oil-adhesive coatings. The proposed formulation of oil-adhesive putty includes such a set of initial components and their quantitative sootnoshenie the human fungal microflora.

The beneficial effect of the investigated water-soluble salts of chitosan in the formulation of the inventive oil-adhesive putty is almost the same. The choice of a particular salt is dictated primarily by the specific terms of technology and the availability of adequate raw material base.

The range of changes in concentrations of water-soluble salts of chitosan in the composition of the filler is primarily due to the following circumstances.

When the concentration of the water-soluble salts of chitosan less than 0.01 wt.% occurrence of fungal microflora in samples putty when stored.

On the contrary, the introduction of filler salts of chitosan at concentrations of more than 1.00 wt. % did not cause a significant qualitative and quantitative changes to increase resistance to fungal microflora.

In table. 1 shows examples of formulations of oil-adhesive putty.

The proposed composition was prepared as follows. First, prepare a paste of chalk in the water, then enter the desired number of natural drying oils, and aqueous solutions of salts of chitosan and sodium salt of carboxymethylcellulose. After thorough mixing, the finished filler Packed in the container.

Svetlanoy skin.

In table. 2 presents the test results of the inventive compositions in comparison with the known.

Thus, the proposed oil-adhesive putty to declare it a set of features allows to achieve the required technical result is to prevent the putty from the damaging effects of microorganisms.

The composition directly from the prior art in this field does not follow and is not obvious to a person. When this differences from the closest analogue directly affect the solution of the problem. This gives the basis to consider this solution as inventive.

The compositions can be obtained by standard manufacturing techniques putty using commercially available materials and standard equipment.

Thus, the claimed technical solution has industrial applicability.

The oil filler-adhesive, including sodium carboxymethyl cellulose, natural drying oil, chalk and water, characterized in that it further contains an additive that increases resistance to fungal microflora, Ana when the following ratio of components, wt.%:

Sodium salt of carboxymethyl - 1,3

Linseed oil is natural to 12.0

Chalk - 60,0

Water-soluble salt of chitosan - 0,01 - 1,00

Water - The Rest

 

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