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Mixed solvent for preparing neoprene adhesive

A technology of mixing solvents and solvent oils, applied in the direction of chloroprene adhesives, adhesives, adhesive types, etc., can solve the problems of uncommon use of solvents, high production costs, and high prices, and achieve excellent environmental protection and low odor , low toxicity effect

Inactive Publication Date: 2007-04-25
BALING PETRO CHEM CO LTD SINOPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the solvent is not commonly used, and the price is high, and the production cost is relatively high

Method used

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  • Mixed solvent for preparing neoprene adhesive

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Effect test

Embodiment 1

[0017] Embodiment 1: get 100 parts of 130# solvent naphtha, 40 parts of dimethyl carbonate, 33 parts of butyl acetate, 22 parts of methylcyclohexane, 27 parts of butanone and mix and stir evenly, obtain clear and transparent colorless solvent, product Small odor, low toxicity, excellent environmental protection, good solubility to chloroprene rubber, no adverse effect on the synthesis process of chloroprene rubber, the conversion rate of MMA monomer after grafting reaction with MMA is 41%, and the initial tensile strength of the obtained product is Up to 3.4KN / m.

Embodiment 2～6

[0018] Embodiment 2~6: preparation method is the same as embodiment 1, 100 parts of 130# solvent naphthas, change the content of dimethyl carbonate, butyl acetate, ethyl acetate, methylcyclohexane, cyclohexane, butanone, pentanone Consumption, the results are as follows in Table 1:

[0019] Table 1: The effect of mixed solvents with different ratios

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Abstract

The invention discloses a composite solvent to prepare neoprene adhesive, which comprises the following parts: 130# solvent oil, dimethyl carbonate, butyl acetate or acetic ester, cyclohexyl-methane or cyclohexane, methyl ethyl ketone or pentanone. The solvent possesses aromatic smell and little toxicity, which improves adhesive strength.

Description

technical field [0001] The invention relates to a mixed solvent for preparing neoprene adhesive. Background technique [0002] The neoprene adhesive prepared by graft copolymerization of neoprene and methyl methacrylate (MMA) is mainly used for bonding between artificial leather, synthetic leather, imitation leather and genuine leather. Neoprene adhesive is a solvent-based adhesive Benzene, toluene, and xylene are excellent solvents for chloroprene rubber. Using "triphenyl" as a solvent can have the best effect on its preparation process and product performance. Therefore, "triphenyl" is used in the manufacture of chloroprene adhesives. widely used in the field. However, "triphenyl" has a great impact on the health of workers and the environment, and should be used as little as possible. Therefore, the current national standard "GB18583-2001" stipulates that benzene is less than 0.5% and "triphenyl" is less than 20% for solvent-based rubber adhesives. Benzene solvents belo...

Claims

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Application Information

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IPC IPC(8): C09J111/00C09J7/00
Inventor 袁红星余卫勋黄志坚
Owner BALING PETRO CHEM CO LTD SINOPEC
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