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Solid glue stick

A solid glue stick, polyvinyl alcohol technology, applied in the direction of glue sticks, adhesives, adhesive additives, etc., can solve the problems of dry viscosity of glue sticks, unreasonable and insufficient glue ratio, etc., and achieve the effect of good viscosity

Inactive Publication Date: 2017-10-31
RUGAO CHANGJIANG SCI & TECHCAL IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the current glue ratio is not very reasonable, it is easy to cause the problem that the glue stick is too dry or the viscosity is not enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] The invention discloses a solid glue stick, which is prepared from the following components by weight: 70 parts of vinyl formal, 5 parts of urea, 5 parts of sodium stearate, 3 parts of sodium hydroxide, 3 parts of hydrochloric acid, 3 parts of glycerin, 3 parts of ethylene glycol.

[0009] According to the above proportioning, the steps of making the finished product in the laboratory are as follows:

[0010] (1) In the three-necked bottle, add deionized water and vinyl formal, and dissolve under stirring;

[0011] (2) Vinyl formal is completely dissolved, the solution is colorless and transparent, and there is no white solid in the bottle;

[0012] (3) After the vinyl formal is completely dissolved, cool down to 35-40°C and add formaldehyde, stir for 15 minutes, then add hydrochloric acid to make the pH of the solution 1-3. Keep the reaction temperature at 85-90°C and continue to stir for 20 minutes. The reaction system will gradually thicken. When bubbles or flocs a...

Embodiment 2

[0014] On the basis of Example 1, 45 parts of polyvinyl alcohol, 35 parts of formaldehyde, 6 parts of urea, 18 parts of sodium stearate, 5 parts of sodium hydroxide, 5 parts of hydrochloric acid, 6 parts of glycerin, and 6 parts of ethylene glycol.

Embodiment 3

[0016] On the basis of Example 1 or 2, 50 parts of polyvinyl alcohol, 40 parts of formaldehyde, 7 parts of urea, 20 parts of sodium stearate, 8 parts of sodium hydroxide, 8 parts of hydrochloric acid, 10 parts of glycerin, 10 parts of ethylene glycol .

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PUM

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Abstract

The invention relates to a solid glue stick, which contains 40-50 parts of polyvinyl alcohol, 30-40 parts of formaldehyde, 5-7 parts of urea, 5-20 parts of sodium stearate, 3-8 parts of sodium hydroxide, and 3-8 parts of hydrochloric acid. 3-10 parts of glycerol, 3-10 parts of ethylene glycol. The advantage of the invention is that through reasonable proportioning, the glue stick produced not only has good viscosity, but is also moist and difficult to dry.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a solid glue stick. Background technique [0002] Polyvinyl formal solid glue stick has the characteristics of good shaping, fast drying speed, high bonding strength, wide application range and low free formaldehyde content. Compared with glue and chemical paste, the biggest feature of solid colloid stick is that it is easy to use and carry, clean and hygienic, and will not cause dripping, diffusion and penetration. It is an ideal office product to replace glue. However, the current glue ratio is not very reasonable, and it is easy to cause the problem that the glue stick is too dry or the viscosity is not enough. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a solid glue stick. [0004] In order to solve the above-mentioned technical problems, the technical solution of the present invention is: a kind of solid glue stick...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J129/14C09J11/06C09J9/00
CPCC09J129/14C08K5/053C08K5/098C08K2201/014C09J9/005C09J11/06
Inventor 朱杰
Owner RUGAO CHANGJIANG SCI & TECHCAL IND CO LTD
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