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Solid glue stick and method for producing the same

A technology of solid glue stick and main body, applied in adhesives, N-vinylpyrrolidone copolymer adhesives, unsaturated alcohol copolymer adhesives, etc., can solve low viscosity, poor stringiness and moisture retention, and shape-forming properties , storage stability, application performance gap and other issues, to achieve the effect of simple production process, white appearance and delicate hand feeling

Inactive Publication Date: 2008-07-16
ZHONGBEI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, the commercially available solid glue sticks still generally have the defects of low viscosity, poor stringiness and poor moisture retention, and there are also certain gaps in shaping, storage stability and some application performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of waterborne polyurethane emulsion

[0037] Weigh 100g of polyether N210 with Mn=1000, pour it into a four-necked flask equipped with a stirrer, a condenser, and a thermometer, vacuum dehydrate it at 0.05Mpa and 110°C for about 2 hours, cool to room temperature, add 35.5g of TDI, and then add two Drop the catalyst dibutyltin dilaurate, continue to heat up to 85°C, and react at constant temperature for 0.5h. Cool down to below 60°C, add 7.5g of DMPA dissolved in 20mL of N-methylpyrrolidone solution, and react at about 75°C for 1 hour. Mix 5.7g of triethylamine and 230mL of deionized water to make a triethylamine aqueous solution, and slowly add the triethylamine aqueous solution into the reaction system cooled to 40°C under high-speed strong stirring, and emulsify for 30 minutes to obtain a solid content of 45.3% water-based polyurethane emulsion.

[0038] Preparation of solid glue sticks

[0039] Weigh 5.2g of stearic acid, add it into a four-necked flas...

Embodiment 2

[0041] The preparation of aqueous polyurethane emulsion is with embodiment 1.

[0042] Preparation of solid glue sticks

[0043] Weigh 5.65g of stearic acid, add it into a four-necked flask equipped with a stirring device and a condenser, and heat it to 70°C in a water bath to completely melt the stearic acid. Add 19 mL of deionized water, continue to heat up to 80° C., slowly add 8.69 g of 10% NaOH solution, stir and react for 0.5 h, and adjust the pH value of the material to about 8. Add 26g of preheated water-based polyurethane emulsion, stir and mix evenly, then add 3.0g of glycerin and 4.8g of polyvinylpyrrolidone, stir to make it fully mixed. Cool down to about 60°C, adjust the pH value to 8-9, pour the hot viscous liquid into a plastic tubular container with a rotary push button to cool and solidify, and a solid glue stick with a solid content of 51.83% can be obtained.

Embodiment 3

[0045] Preparation of waterborne polyurethane emulsion

[0046] Weigh 69.6g of polyether N210 (Mn=1000), pour it into a four-neck flask equipped with a stirrer, a condenser, and a thermometer, vacuum dehydrate it at 0.06Mpa and 110°C for about 2 hours, cool to room temperature, and add 24.3g of TDI , and then add two drops of catalyst dibutyltin dilaurate, continue to heat up to 85 ° C, constant temperature reaction 0.5h. Cool down to below 60°C, add 5.25g of DMPA dissolved in 15mL of N-methylpyrrolidone solution, and react at about 75°C for 1 hour. Mix 3.96g of triethylamine and 160mL of deionized water to make a triethylamine aqueous solution. Under high-speed strong stirring, slowly add the triethylamine aqueous solution into the reaction system cooled to 40°C, emulsify for 30 minutes, and obtain a solid content of 45.4% water-based polyurethane emulsion.

[0047] Preparation of solid glue sticks

[0048] Weigh 5g of stearic acid, add it into a four-necked flask equipped...

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Abstract

The invention discloses a solid glue stick, and is prepared with watercraft polyurethane latex as a major glue component, water as solvent, sodium stearate as gel, and polyvinyl alcohol and polyethylene pyrrole azululanone as accessory ingredients, and moderate glycerol added as humectant, wherein a self-emulsion method is adopted for the preparation of the watercraft polyurethane latex. The invention has the advantages that coated surface of the watercraft polyurethane adhesive adopted in preparing the solid glue stick is not easy to be damaged; the mechanical property is excellent; the modification is easy; the compatibility with paint is good; the prepared solid glue stick has obvious advantages in properties of assigned model, hardness, coating, and splicing, etc.; the exterior is pure white; the feeling is subtle; the splicing property is good; the drying speed is high; time for paper tearing is less than one minute; the hydrating period is as long as one year; the reserve property is fine.

Description

technical field [0001] The invention relates to a solid glue stick, in particular to a solid glue stick with water-based polyurethane as an adhesive component. Background technique [0002] Solid glue stick is also called solid glue. Compared with liquid glue, solid glue stick is not only easy to carry, but also does not flow or stick to hands, so it is very popular. The main raw material of solid glue stick is paper adhesive, and some substances that are easy to solidify and form are added as gel, and then humectants, plasticizers and fragrances are added to improve its use, storage, smell and appearance. performance. The above-mentioned various raw materials are fully mixed according to the selected formula through a certain process, dispersed evenly, and then poured into a lipstick type packaging container for cooling and molding, and the solid glue stick can be obtained. To make a solid glue stick with excellent performance, the key is to select the appropriate raw mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J9/00C09J129/04C09J139/06
Inventor 吴晓军卫晓利吴晓青
Owner ZHONGBEI UNIV
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