JP2005120295A - Adhesive aerosol composition and aerosol for bonding - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive aerosol composition and aerosol for bonding, capable of exhibiting sufficient adhesive force even to paper, wood, cloth, etc., and giving a bonded surface having excellent appearance free from spots, etc. <P>SOLUTION: The adhesive aerosol composition is composed of an adhesive substance 1, a solvent 2 which does not dissolve the adhesive substance and a propellent gas 3 dissolving the adhesive substance 1 and the solvent 2. The aerosol for bonding is produced by filling the adhesive aerosol composition in a spray can. The composition preferably contains 0.1-30 wt.% adhesive substance, 5-95 wt.% solvent and 5-95 wt.% propellent gas. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pressure-sensitive aerosol composition and an adhesive aerosol that can exhibit sufficient adhesion to paper, wood, cloth, and the like.

  Conventionally, various aerosol type adhesives used for materials having a smooth surface such as metals, plastics, and glasses have been developed and proposed. However, if such an adhesive is used for a material that does not have a smooth surface such as paper, wood, and cloth, the adhesive substance penetrates into the fiber and cannot exhibit sufficient adhesive force. There was a problem and a problem that the permeated part became a stain and deteriorated the appearance quality of the product. Therefore, there is a great demand for an aerosol-type adhesive that can exert sufficient adhesive force on paper, wood, cloth, and the like, and its development has been awaited.

On the other hand, as disclosed in Patent Document 1, an adhesive composition using a block polymer composed of a vinyl aromatic hydrocarbon and butadiene for the purpose of adhesive discharge stability of an intermittent spray coating machine in a production line such as a paper diaper. Has been proposed. However, this prevents nozzle clogging of a spray coating machine having a large discharge pressure, and cannot be applied as it is to an aerosol that is easily used in general households.
Japanese Patent Laid-Open No. 10-46129

  The present invention solves the conventional problems as described above, can exhibit sufficient adhesive force to paper, wood, cloth, etc., and has an excellent appearance without causing stains or the like It is to provide a sticky aerosol composition and an adhesive aerosol capable of obtaining a quality adhesive surface.

  The present invention comprises an adhesive substance comprising an adhesive substance, a solvent that does not dissolve the adhesive substance, and a propellant gas that dissolves both the adhesive substance and the solvent, and such an adhesive. An aerosol for adhesion characterized by filling an aerosol composition into a spray can. In addition, it is preferable that the said component contains 0.1-30% adhesive substance, 5-95% solvent, and 5-95% propellant gas by weight%.

  The adhesive aerosol composition of the present invention comprises an adhesive substance, a solvent that does not dissolve the adhesive substance, and a jet gas that dissolves both the adhesive substance and the solvent. By agglomerating on a base material such as a conventional adhesive material prevents the adhesive material from penetrating into fibers such as paper and cloth, ensuring sufficient adhesive force and preventing the occurrence of spots and the like. It is.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  The adhesive aerosol composition of the present invention has a characteristic constitution in that it comprises an adhesive substance, a solvent that does not dissolve the adhesive substance, and a propellant gas that dissolves both the adhesive substance and the solvent. As a result of the study by the present inventors, the conventional one is obtained by dissolving a sticky substance in a solvent, and when sprayed on the base material, the sticky substance penetrates into the base material together with the solvent, and the surface In order to solve this problem, the present inventors have completed the present invention. It is a thing.

  The conventional one will be described with reference to FIG. 2. Immediately after spraying, the adhesive substance 1, the solvent 2, and the jet gas 3 are in a state of being uniformly dissolved (see FIG. 2A). Next, in the process of reaching the substrate, the jet gas 3 gradually evaporates, but the adhesive substance 1 is in a state dissolved in the solvent 2 (see FIG. 2B). Furthermore, when it reaches | attains on the base material 10, the film | membrane of the state in which the adhesive substance 1 melt | dissolved in the solvent 2 uniformly will be formed on the base material 10 (refer FIG.2 (c)). Thereafter, most of the adhesive substance 1 soaks into the base material 10 together with the solvent 2, and only a small amount of the adhesive substance 1 remains on the surface. In addition, the solvent 2 soaked in the base material 10 is eventually volatilized, and the adhesive substance 1 remains in the interior to cause a stain (see FIG. 2D). .

  In contrast, in the present invention, as shown in FIG. 1, the state immediately after spraying is a state in which the adhesive substance 1, the solvent 2 and the injection gas 3 are uniformly dissolved, which is the same as the conventional one (FIG. 1 (a). Since the solvent 2 does not dissolve the adhesive substance 1, the adhesive substance 1 gradually aggregates in the process of reaching the substrate (see FIG. 1B). And when it reaches | attains on the base material 10, the adhesive substance 1 and the solvent 2 will isolate | separate completely, and the film | membrane which the adhesive substance 1 aggregated will be formed on the base material 10 (FIG.1 (c) )reference). Next, most of the solvent 2 is volatilized, and part of the solvent 2 penetrates into the base material 10 to form a film in which the adhesive substance 1 having sufficient adhesive force is aggregated on the base material 10. . Note that the solvent 2 that has soaked into the substrate 10 will eventually volatilize (see FIG. 1D). As a result, the adhesive substance particles are re-aggregated on the base material 10 so that the adhesive substance does not penetrate between fibers such as paper and cloth as in the past, and sufficient adhesive force is secured. The occurrence of stains and the like is surely prevented.

  Examples of the adhesive substance 1 include rubber adhesives such as SBR, NBR, IIR, SIS, NR, CR, BR, urea resin, melamine resin, phenol resin, acrylic resin, epoxy resin, urethane resin, and silicone resin. A resin adhesive such as cyanoacrylate resin can be used.

  Solvent 2 is an organic solvent containing 1 to 10 carbon atoms such as normal hexane, isohexane, cyclohexane, methyl alcohol, ethyl alcohol, isopropyl alcohol, acetone, methyl ethyl ketone, cyclohexanone, toluene, xylene, ethyl acetate, butyl acetate and the like. Alternatively, a mixed solution containing two or more kinds can be used.

  As the propellant gas 3, one that dissolves both the adhesive substance 1 and the solvent 2 is used. Specifically, a liquefied gas such as propane, butane, or dimethyl ether (DME), a chlorofluorocarbon gas such as HFC-152a or HFC-134a, or a mixed gas containing two or more of them can be used.

  Moreover, it is preferable that each said component contains 0.1-30% adhesive substance 1, 5-95% solvent 2, and 5-95% propellant gas 3 by weight%.

  Such a sticky aerosol composition can be filled in a spray can and used as an adhesive aerosol. In this case, the adhesive layer can be easily formed simply by spraying toward the portion of the substrate 10 to be applied, which is convenient. In addition, the adhesive substance 1 does not penetrate between fibers such as paper and cloth as in the past, ensuring sufficient adhesive strength and ensuring the prevention of stains and ensuring excellent appearance quality. Will be.

  A spray can was filled with SBR adhesive: 7% by weight, isohexane: 55% by weight, and dimethyl ether (DME): 38% by weight to prepare an adhesive aerosol. When sprayed on cloth and paper using this, it was confirmed that it was possible to spray uniformly and that good adhesiveness could be exhibited without the penetration of the adhesive.

It is explanatory drawing which shows the formation process of the adhesive film in this invention. It is explanatory drawing which shows the formation process of the adhesive film in a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Adhesive substance 2 Solvent 3 Injection gas 10 Base material

Claims (3)

  An adhesive aerosol composition comprising an adhesive substance, a solvent that does not dissolve the adhesive substance, and a propellant gas that dissolves both the adhesive substance and the solvent.   The adhesive aerosol composition according to claim 1, comprising 0.1 to 30% adhesive substance, 5 to 95% solvent, and 5 to 95% propellant gas by weight%. An adhesive aerosol comprising a spray can filled with the adhesive aerosol composition according to claim 1.

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