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Modified solvent-free bio-based polyurethane resin and application thereof

A polyurethane resin, bio-based technology, applied in the field of polyurethane, can solve the problems of poor peel strength and low hydrolysis resistance of solvent-free polyurethane resin, and achieve the effect of good hydrolysis resistance, peel strength and hydrolysis resistance improvement.

Active Publication Date: 2020-04-07
HEFEI KETIAN WATERBORNE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, solvent-free polyurethane resins generally have the disadvantages of poor peel strength and low hydrolysis resistance.

Method used

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  • Modified solvent-free bio-based polyurethane resin and application thereof
  • Modified solvent-free bio-based polyurethane resin and application thereof
  • Modified solvent-free bio-based polyurethane resin and application thereof

Examples

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Embodiment Construction

[0050] The present invention will be further described below through several specific examples, but it should be pointed out that the specific material proportions, process conditions and results described in the examples of the present invention are only used to illustrate the present invention, and cannot be used as This limits the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

[0051] Note that "%" and "parts" shown in the description herein refer to "mass%" and "mass parts", respectively, unless otherwise specified. In the present invention, letters such as A1 and B1 are used to distinguish the products prepared in each embodiment.

[0052] The present invention modifies the solvent-free bio-based polyurethane resin by introducing an aromatic compound reactive with the isocyanate group of the isocyanate, and inserts...

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Abstract

The invention discloses a modified solvent-free bio-based polyurethane resin and application thereof. The modified solvent-free bio-based polyurethane resin is formed by mixing a component A and a component B. According to the invention, an aromatic compound having reactivity with isocyanato group of isocyanate is adopted to modify solvent-free bio-based polyurethane resin, so that the peel strength and hydrolysis resistance of the modified solvent-free bio-based polyurethane resin are greatly improved.

Description

technical field [0001] The invention belongs to the field of polyurethane, and in particular relates to a modified solvent-free bio-based polyurethane resin and its application. Background technique [0002] The full name of polyurethane is polyurethane, which is a general term for macromolecular compounds containing repeated urethane groups on the main chain. It is a polymer compound obtained by the interaction of binary or polyvalent organic isocyanates and polyol compounds. According to its physical properties and uses, polyurethane can generally be divided into rigid polyurethane foam, flexible polyurethane foam, polyurethane elastomer and polyurethane coating. Due to its excellent performance, polyurethane is widely used in many fields such as construction, automobile, light industry, textile, petrochemical and so on. It is an emerging organic polymer material and is known as the "fifth largest plastic". Recently, the development of solvent-free polyurethane synthetic ...

Claims

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Application Information

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IPC IPC(8): C08G18/76C08G18/66C08G18/42C08G18/32D06N3/14
CPCC08G18/3215C08G18/4238C08G18/664C08G18/7671D06N3/14D06N2203/068D06N2211/28
Inventor 李维虎杜春毅朱保凌戴家兵
Owner HEFEI KETIAN WATERBORNE TECH CO LTD
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