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Hot melt pressure sensitive adhesive and preparation process thereof

A technology of hot-melt pressure-sensitive adhesive and rubber softening oil, which is applied in adhesives, rosin adhesives, etc., can solve the problems of meager profits of hot-melt pressure-sensitive adhesives, and achieve the effect of reducing production costs

Inactive Publication Date: 2009-06-03
HENGYANG KETAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In recent years, due to the rising international market prices of various raw materials, the current cost price of hot-melt pressure-sensitive adhesives is as high as 15,000 yuan / ton, while the product market sales price is 16,000-20,000 yuan / ton. The profit of sensitive adhesive is meager, and the raw material formula needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 220Kg of rubber softening oil 4010, 40Kg of polyisobutylene PB2400 and 5Kg of antioxidant BHT into the stainless steel reactor; add 40Kg of SBS168, 50Kg of SBS796, 35Kg of SIS822 and 200Kg of SIS1105 after the temperature in the reactor rises to 140°C , and control the temperature of the reactor within 155°C; after the SBS and SIS are completely dissolved, put in 80Kg terpene T-1095, 80Kg terpene modified resin T-100 and 250Kg rosin modified resin 138 # , Control the temperature in the stainless steel reactor at about 185°C and stir for 45 minutes; vacuumize the reactor to -0.085Mpa, discharge the material, and pack it after cooling.

[0022] The above products are tested for performance: 1) According to the method described in the national standard GB / T 4852-2002, the initial tack of the pressure-sensitive adhesive is tested, and the results show that the product of the present invention can stick to the No. 17 ball, which meets the national standard; The method de...

Embodiment 2

[0024] Add 215Kg of rubber softening oil 4010, 44Kg of polyisobutylene PB2400 and 4Kg of antioxidant BHT into the stainless steel reactor; add 45Kg of SBS168, 45Kg of SBS796, 38Kg of SIS822 and 197Kg of SIS1105 after the temperature in the reactor rises to 140°C , and control the temperature of the reactor within 155°C; after the SBS and SIS are completely dissolved, put in 80Kg terpene T-1095, 86Kg terpene modified resin T-100 and 246Kg rosin modified resin 138 # , Control the temperature in the stainless steel reactor at about 180°C and stir for 55 minutes; vacuumize the reactor to -0.085Mpa, discharge the material, and pack it after cooling.

[0025] The above products are tested for performance, and the detection method is the same as in Example 1. The results show that: 1) the product of the present invention can stick to No. 18 balls in the initial tack test, which meets the national standard; 72 hours, three times more than similar products; 3) In the oil leakage test, ...

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PUM

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Abstract

The invention discloses a hot melt pressure sensitive adhesive. The main raw materials (by weight parts) of the hot melt pressure sensitive adhesive comprises the following component by weight: 3 to 5 portions of SBS168, 4 to 6 portions of SBS796, 2 to 5 portions of SIS822, 15 to 25 portions of SIS1105, 4 to 12 portions of terpene T-1095, 4 to 12 portions of terpene-modified resin T-100, 20 to 30 portions of rosin-modified resin 138<#>, 16 to 28 portions of rubber-softening oil KN4010, 2 to 6 portions of polyisobutylene PB2400, and 0.2 to 0.6 portions of antioxidant BHT. With the modified formulation of raw materials, the cost of the hot-melt pressure-sensitive adhesive is greatly reduced and the adhesion property of the hot-melt pressure-sensitive adhesive is better than the similar products.

Description

technical field [0001] The invention belongs to the technical field of polymer adhesives, and in particular relates to a hot-melt pressure-sensitive adhesive and a preparation process thereof. Background technique [0002] Hot-melt pressure-sensitive adhesive is a new type of hot-melt adhesive, which does not contain solvents and water, is non-polluting and non-carcinogenic, and has a simple production process. It is an important branch of adhesives. When the solid hot melt pressure sensitive adhesive is heated to 150 ~ 200 ℃, it becomes fluid and produces extremely high thermal viscosity. It can be used by spraying and roller coating. When it is cooled to room temperature, it becomes solid again. Pressure produces good adhesion. It is usually coated on paper, plastic film, fabric or metal foil to make pressure-sensitive adhesive tape or pressure-sensitive adhesive sheet, which is mainly used for sealing packaging or bundling of various cartons, pasting of trademarks and la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J153/02C09J193/04
Inventor 刘林
Owner HENGYANG KETAI CHEM
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