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High-temperature-resistant oily leather treatment agent for synthetic leather, and preparation method for high-temperature-resistant oily leather treatment agent

A technology of high temperature resistance and treatment agent, applied in the field of high temperature resistant oil skin treatment agent and its preparation, can solve the problems that the synthetic leather treatment agent cannot be widely used, cannot meet the aesthetic requirements of consumers, etc. Good, stable performance

Inactive Publication Date: 2015-11-18
WENZHOU EVERMORE NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the synthetic leather treatment agent compounded by the original mature ordinary polyurethane resin cannot be widely applied to various synthetic leathers, nor can it meet the aesthetic requirements of consumers for hand feel and appearance. More special treatment agents are needed to satisfy customers. requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 10 parts of polymerized polyol, 17 parts of isocyanate, 2 parts of small molecule diol, 1 part of chain extension modifier, 65 parts of solvent, 3 parts of diamine, 2 parts of auxiliary agent, including 0.2 part of antioxidant and 0.05 part of catalyst , 0.75 parts of leveling agent, 1 part of hand feeling agent.

[0019] The above polymeric polyols are polytetrahydrofuran diol and polyethylene adipate-1,4-butylene glycol ester diol, the isocyanate is diphenylmethylene diisocyanate, and the small molecule diol is 1,6-hexane The diol, the chain extension modifier is trihydroxymethyl propane, the solvent is toluene and N,N-dimethylformamide, and the diamine is isophorone diamine.

[0020] The preparation method of the high-temperature-resistant oil skin treatment agent for synthetic leather comprises the following steps in sequence:

[0021] (1) Carry out vacuum dehydration to polymerized polyol, make its moisture content be less than 0.03 part;

[0022] (2) Put polymer...

Embodiment 2

[0028] 10 parts of polymerized polyol, 5 parts of isocyanate, 1 part of small molecule diol with molecular weight below 150, 0.2 part of chain extension modifier, 79 parts of solvent, 2 parts of diamine, 3 parts of auxiliary agent, of which antioxidant is 0.5 parts, 0.05 parts of catalyst, 0.45 parts of leveling agent, and 0.1 parts of hand feeling agent.

[0029] Polymerized polyols are polycarbonate diol and polyethylene glycol, isocyanate is isophorone diisocyanate, small molecule diols are ethylene glycol and 1,3-butanediol, solvents are ethyl acetate and methyl ethyl ketone, and The chain modifier is castor oil polyol, and the diamine is diethyltoluenediamine.

[0030] The preparation method of the high temperature resistant oil skin treatment agent for synthetic leather is as described in Implementation 1.

Embodiment 3

[0032] 15 parts of polymerized polyol, 7 parts of isocyanate, 4 parts of small molecule diol with molecular weight below 150, 2.5 parts of chain extension modifier, 65 parts of solvent, 4 parts of diamine, 2.5 parts of auxiliary agent, of which 0.5 parts of antioxidant parts, 0.04 parts of catalyst, 0.6 parts of leveling agent, and 1 part of hand feeling agent.

[0033] The polymer polyol is polycaprolactone diol, polyhexamethylene adipate diol and polypropylene glycol, the isocyanate is toluene diisocyanate, the small molecule diol is 1,4-butanediol, and the solvent is butyl acetate and isopropanol, the chain extension modifier is castor oil polyol, and the diamine is 3,5-dimethylthiotoluenediamine.

[0034] The preparation method of the high temperature resistant oil skin treatment agent for synthetic leather is as described in Implementation 1.

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Abstract

The invention discloses a high-temperature-resistant oily leather treatment agent for synthetic leather. The high-temperature-resistant oil skin treatment agent comprises the following components in percentage by weight: 4-20 parts of polymeric polyol, 5-20 parts of isocyanate, 1-5 parts of small molecule diol, 0.2-3 parts of a chain extension modifier, 60-80 parts of a solvent, 1-8 parts of diamine and 1-5 parts of additives, wherein the additives comprise the following components in parts by weight: 0.1-1 part of an antioxidant, 0.05-0.1 part of a catalyst, 0.1-2 parts of a feeling agent and 0.1-1 part of a leveling agent, the polymeric polyol comprises at least one of polymeric polyol and polyether polyol, and the number-average molecular weight of the polymeric polyol is 700-3000 g / mol. Through the adoption of the high-temperature-resistant oil skin treatment agent, a coating surface can be formed on the surface of the synthetic leather; the coating is excellent in vividness, high in oil transmitting light performance, dry in hand touch feeling, and good in leather simulation effect, and the glossiness cannot be changed after high-temperature secondary processing.

Description

technical field [0001] The invention belongs to the technical field of leather treatment agents, in particular to a high-temperature-resistant oily leather treatment agent for synthetic leather and a preparation method thereof. Background technique [0002] At present, synthetic leather has largely replaced natural leather with insufficient resources to make bags, clothing, shoes, and decorations for vehicles and furniture. With the improvement of people's living standards and aesthetic tastes, synthetic leather products not only need to be durable, It should also have a good appearance and touch, which not only puts forward higher requirements for the polyurethane resin for the production of synthetic leather, but also puts forward higher requirements for the leather finishing agent. Synthetic leather is required to have a special visual effect and a strong sense of genuine leather; the oil leather finishing agent of polyurethane materials on the market now feels sticky to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/568D06M15/572C14C11/00C08G18/42C08G18/48C08G18/32C08G18/66C08G18/73C08G18/76C08G18/75
Inventor 张佑寅
Owner WENZHOU EVERMORE NEW MATERIAL TECH
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