A kind of polyurethane resin composition and its preparation method and application

A technology of polyurethane resin and composition, which is applied in the field of polyurethane, can solve the problems such as the inability to realize the injection molding of TPR soles, and achieve the effects of easy sliding and bending, good low-temperature flexibility, and good compatibility

Active Publication Date: 2022-07-19
SHANGHAI HUIDE TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The shoe leather prepared by the invention has excellent air and moisture permeability, good scratch and wear resistance, smooth surface and good hand feeling, but it cannot be injection molded with TPR sole

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of polyurethane resin composition and its preparation method and application
  • A kind of polyurethane resin composition and its preparation method and application
  • A kind of polyurethane resin composition and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] In this embodiment, a polyurethane resin composition is provided, and the polyurethane resin composition includes a first composition and a second composition, and the first composition includes the following components by weight percentage:

[0057]

[0058] The second composition includes the following components by weight:

[0059]

[0060] The preparation method includes the following steps:

[0061] (1) Preparation of the first composition: HDPOL-8320, 1,4-butanediol, 2-butyl-2-ethyl-1,3-propanediol, N,N-dimethylformamide and part of toluene Mix evenly, cool down to 58°C, add part of diphenylmethane-4,4'-diisocyanate to start the reaction, the solid content of the reaction is 40%, the molar ratio of isocyanate groups and hydroxyl groups in the reaction solution is 0.95, and the temperature is raised to 70°C , react until the hydrogen peroxide test does not turn yellow; add part of diphenylmethane-4,4'-diisocyanate, so that the molar ratio of isocyanate group...

Embodiment 2

[0064] In this embodiment, a polyurethane resin composition is provided, and the polyurethane resin composition includes a first composition and a second composition, and the first composition includes the following components by weight percentage:

[0065]

[0066]

[0067] The second composition includes the following components by weight:

[0068]

[0069] The preparation method includes the following steps:

[0070] (1) Preparation of the first composition: HDPOL-8320, 1,4-butanediol, 2-butyl-2-ethyl-1,3-propanediol, N,N-dimethylformamide and part of toluene Mix evenly, cool down to 60°C, add part of diphenylmethane-4,4'-diisocyanate to start the reaction, the solid content of the reaction is 40%, the molar ratio of isocyanate groups and hydroxyl groups in the reaction solution is 0.95, and the temperature is raised to 75°C , react until the hydrogen peroxide test does not turn yellow; add part of diphenylmethane-4,4'-diisocyanate, so that the molar ratio of isoc...

Embodiment 3

[0073] In this embodiment, a polyurethane resin composition is provided, and the polyurethane resin composition includes a first composition and a second composition, and the first composition includes the following components by weight percentage:

[0074]

[0075] The second composition includes the following components by weight:

[0076]

[0077]

[0078] The preparation method includes the following steps:

[0079] (1) Preparation of the first composition: HDPOL-8330, 1,4-butanediol, 2-butyl-2-ethyl-1,3-propanediol, N,N-dimethylformamide and part of toluene Mix evenly, cool down to 55°C, add part of diphenylmethane-4,4'-diisocyanate to start the reaction, the solid content of the reaction is 40%, the molar ratio of isocyanate groups and hydroxyl groups in the reaction solution is 0.95, and the temperature is raised to 73°C , react until the hydrogen peroxide test does not turn yellow; add a part of diphenylmethane-4,4'-diisocyanate, so that the molar ratio of is...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides a polyurethane resin composition, a preparation method and application thereof. The polyurethane resin composition includes a first composition and a second composition, and the first composition includes the following components by weight: polyester multicomponent Alcohol 11.5-12.1%, small molecule diol 2.3-3.6%, diphenylmethane-4,4'-diisocyanate 8-8.5%, solvent 70% and styrene-butadiene-styrene block copolymer 6.9-7%; the second composition comprises the following components by weight percentage: polyester polyol 12-14%, small molecular diol 2.3-3.4%, diphenylmethane-4,4'-diisocyanate 7.5‑8.5%, solvent 70% and liquid nitrile rubber 4.9‑7%. Compared with the conventional polyurethane resin, the polyurethane resin composition of the present invention has lower polarity, can realize injection molding with TPR, and is suitable for the field of shoe leather materials.

Description

technical field [0001] The invention belongs to the technical field of polyurethane, and relates to a polyurethane resin composition, a preparation method and application thereof, and in particular to a polyurethane resin composition for TPR injection molding, a preparation method and application thereof. Background technique [0002] TPR (Thermo-Plastic-Rubber) material is a thermoplastic rubber material, which is a kind of thermoplastic soft rubber material with rubber elasticity and without vulcanization, which can be directly processed (such as injection molding, extrusion, blow molding, etc.). TPR material is based on thermoplastic styrene-butadiene rubber as the basic raw material, adding resin, filler, plasticizer and other functional additives to blend and modify the material. [0003] TPR sole is an environmentally friendly material of a new type of thermoplastic rubber mixed with styrene-butadiene-styrene block copolymer (SBS) as the base material. Simple processi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/06C08L53/02C08L9/02C08G18/66C08G18/42C08G18/32A43B23/02
CPCC08L75/06C08G18/664C08G18/4238C08G18/3206A43B23/0215A43B23/0235C08L53/02C08L9/02
Inventor 郭海英钱建中钱洪祥却靖邹寒卞如虎
Owner SHANGHAI HUIDE TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap