SU1130581A1 - Wallpaper adhesive - Google Patents

Abstract

GLUE FOR WALLPAPERS, including butadiene-latex latex, urea-formaldehyde resin, urea, Carboxymethylcellulose, ethylene glycol, a mixture of sodium salts of alkyl monosulfonic acids with an alkyl chain length -. and water. characterized in that, in order to reduce foaming and increase bonding strength, it additionally contains sodium sulfate in the following ratio of components, in May.%: Styrene-butadiene latex (dry 14, 40-33.29 substance) Urea formal 25, 0-40.0 gfd resin 0.5-3.0 Urea Na-Carboxymethylcellulose, 4-2.0 lulose. 1.0-5.0 Ethylene glycol A mixture of sodium salts of alkyl monosulfonic acids with chain length. the alkali radical is 0.015-0.225 C / 11 - 0.05-0.5, with sodium sulfate Else Water CO o ate 00 taoA.

Description

; The invention relates to the production of water-soluble adhesives and can be used for gluing paper and multilayer paper and washable wallpaper on paper and fabric bases. A wallpaper glue is known that contains a thickening agent, a softener, a filler, and a binder, which includes EP butadiene styrene latex. The disadvantage of this composer is the presence of a rigid indelible glue line. I The closest in technical essence of the invention is glue d wallpaper t23, containing, by weight; Butadiene-lateral latex (on a dry basis) 30.5-86, Urea-formaldehyde resin 10.5-59, Urea 0.5-3.1 Na-Carboxymethylcellulose0, 4-2.0 Ethylene glycol1.0-5, O Mixture of alkyl monosulfonates (15% solution) 0.1-1.5 Water 1.5-5.0 A disadvantage of the known composition is the tendency to foaming during the production of glue on the industrial scale. The formation of small air bubbles caused by the composition of the glue. The effect of bleeding adversely affects the technological process: it takes a long time to sediment the finished product, which reduces the performance of the equipment. The increase in the volume of finished products

This, due to the inclusion of air bubbles, makes the packaging of glue into prefabricated containers impossible. Adhesive properties are also deteriorating, which is especially important for gluing heavy multi-layer wallpaper.

. The purpose of the invention is to reduce foaming and increase adhesive ability. The goal is achieved by 50

that glue for wallpaper, styrene-butadiene-latex, urea-formaldehyde resin, urea, Na-carboxymethylcellulose, ethylene glycol, a mixture of sodium salts of alkyl monosulfonic acids with a long chain of the alkyl radical Cii - C | g and water, additionally contains sodium sulfate

are 25 May.% urea-formaldehyde resin. After 0.5 h of stirring, 1.0% by weight of ethylene glycol and 0.1% by weight of a 15% solution of the mixture of alkyl monosulfonates (dry substance 0.015) are introduced into the thickened glue and mixed for 0.5 hour. 20 ° C.

PRI mme R 2. Adhesive for example 1

ponent, wt.%: water 9.0; sodium sulfate 0.2; urea 1.5; Na-carboxymethylcellulose 1.0; latex 50.0; , (24 in terms of dry substance) urea formaldehyde resin 35; Ethylene glycol 2.5 and 15% solution of alkyl monosulfonates (0.12% on dry basis) 0.8. in the following ratio, wt.%: Wutadiene styrene latex (on a dry basis) 14.40-33.29 Urea formaldehyde resin25.0-40.0 Urea 0.5-3.0 Na-Carboxymethylcellulose 0, 4-2.0 Ethylene glycol1.0 -5.0 A mixture of sodium salts - alkyl monosulfonic acids with alkyl chain radical C, - 0.015-0.225 Sodium sulfate 0.05-0.5 Water Else The composition uses a mixture of alkyl monosulfonates - a surfactant Volgonate - a mixture of sodium salts of isomeric alkylsulfonic acids with chain length of an alkyl radical C ,,, - of the general formula R - SOzONa. The mixture of alkyl monosulfonates is introduced into the composition in the form of a 15% aqueous solution. Example 1. In a stirred reactor of 3.6% by weight of water, 0.05% by weight of sodium sulfate is dissolved. Then load 0.5 wt.% Urea. To the resulting solution was added 0.4% by weight of Na-carboxymethylcellulose, stirring for 1 hour until it was completely swollen. 69.35 wt.% (Or 33.29 wt.%, Calculated on the dry matter) of the latex are added in portions at short intervals, stirring after each addition. After that, the tide is obtained when introduced into the reactor

P p and m e p 3. Similarly to examples 1 and 2, components are introduced into the reactor, May. %: water 18.0; sodium sulfate 0.5; urea 3; sodium carboxymethyl cellulose 2; latex 30 (14.4 wt.% in terms of dry substance); urea formaldehyde resin 40; ethylene glycol 5; A 15% solution of a mixture of apkyl monosulfonates (0.225 wt.% On dry basis) 1.5.

In examples 1 to 3, calculations are given for latex, and the dry residue is 48 wt.%.

Obtained in examples 1-3 adhesive formulations were tested for foaming and adhesive ability. The chemical properties of the compositions are given in table. I.

305814

As can be seen from the table, the proposed composition has increased flesh, which indicates cross-linking, foaming ability, 5 increased bonding strength and is characterized by low absorbency. The adhesive has the ability to be flushed (completely). In spite of the increased density of the adhesive 10, the washability of the adhesive is improved (the emulsification time is reduced).

Data on ability to emlingiou presented in table. 2

The adhesive can be used to adhere multilayered wallpaper of the type: izoshlen, foam, polyplen, etc. heavy rolled lining materials on a vertical surface.

Table 1

Famous

Known adhesive The proposed adhesive is 1.08 1.08 1.08 J, 08 1.08 1.08 0.8.

table 2

20-30

15-20

32-50

40-60 1.08 1.08 1.08 0.9

Claims (1)

ADHESIVE FOR WALLPAPERS, including styrene-butadiene latex, urea-formaldehyde resin, urea, Na-carboxymethyl cellulose, ethylene glycol, a mixture of sodium salts of alkyl monosulfonic acids with the chain length of the alkyl radical Sc - and water, characterized in that, with In order to reduce foaming and increase the bonding strength, it additionally contains sodium sulfate in the following ratio of components, Styrene butadiene latex (dry matter) Urea-formaldehyde resin Urea Na-carboxymethyl cellulose Ethylene glycol A mixture of sodium salts of alkyl monosulfonic acids with a chain length. alkyl radical Sodium sulfate Water 14.40-33.29 25.0-40.0 0.5-3.0 0.4-2.0), 0-5.0 0.015-0.225 0.05-0.5, Rest SU „„ 1130581