Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Special material for case and bag casters, and preparation method thereof

A special material and caster technology, which is applied in the field of special material for luggage casters and its preparation, can solve the problems of long molding time, hardness and tear strength that cannot meet the requirements, etc., and achieve good bonding effect, high tear strength and good toughness Effect

Inactive Publication Date: 2019-09-24
淮安市宏川箱包有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Casters are an indispensable component of luggage. Due to the characteristics of luggage, there are high requirements for the hardness, toughness and tear strength of casters. The existing casters are made of conventional TPU70D. The molding time is long, and the hardness and tear strength cannot meet the requirements

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: A preparation method of a special material for luggage casters, the method steps are as follows:

[0017] A. Weigh PEBA-2000—50%, 1,4-BDO—11.8%, MDI38.2% by weight percentage;

[0018] B. Mix and stir 1,4-BDO and PEBA-2000 evenly. The initial stirring temperature is 80°C. Increase the heating temperature evenly. The heating rate is 5°C / 3min until the temperature rises to 95°C and no longer heats up. Add MDI Continue stirring for 10 minutes to obtain the primary material;

[0019] C. Add the primary material to the oven for drying, the drying temperature is 150°C, and dry for 8 hours to solidify the primary material into a block material, take it out and put it in a curing room at 85°C for 15 hours of curing, after curing, put the block material It is broken into small pieces with a diameter of about 1cm by a crusher, and finally extruded by a single screw, and processed into a special material for luggage casters by a granulator.

Embodiment 2

[0020] Embodiment 2: A preparation method of a special material for luggage casters, the method steps are as follows:

[0021] A. Weigh PEBA-2000—49%, 1,4-BDO—12%, MDI39% by weight percentage;

[0022] B. Mix and stir 1,4-BDO and PEBA-2000 evenly, the initial stirring temperature is 80°C, increase the heating temperature evenly, the heating rate is 3°C / 3min, until the temperature rises to 95°C and no longer heats up, add MDI Continue stirring for 8 minutes to obtain the primary material;

[0023] C. Put the primary material into the oven for drying, the drying temperature is 160°C, and dry for 7 hours to make the primary material solidify into a block material, take it out and put it in a 90°C curing room for aging for 15 hours, after aging, put the block material It is broken into small pieces with a diameter of about 1.5cm by a crusher, and finally extruded by a single screw, and processed into a special material for luggage casters by a granulator.

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 invention relates to a special material for case and bag casters, and a preparation method thereof. The special material comprises 49-51 wt% of PEBA-2000, 10-12 wt% of 1,4-BDO and 37-39 wt% of MDI. All above components are uniformly stirred, dried, aged, crushed, extruded and granulated to obtain the finished special material product. The special material has the advantages of low cost, fastness in molding, good toughness and high tearing strength.

Description

technical field [0001] The invention relates to a special material for luggage casters and a preparation method thereof. Background technique [0002] Casters are an indispensable component of luggage. Due to the characteristics of luggage, there are high requirements for the hardness, toughness and tear strength of casters. The existing casters are made of conventional TPU70D. The molding time is longer, and the hardness and tear strength cannot meet the requirements. Contents of the invention [0003] The object of the present invention is to overcome the defects in the prior art, and provide a special material for luggage casters and a preparation method thereof, which have low cost, fast forming, good toughness and high tear strength. [0004] The present invention is achieved through the following technical solutions. [0005] A special material for luggage casters, the composition of which is as follows by weight percentage: PEBA-2000 49~51% 1,4-BDO10~12% MDI 37~39...

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 Applications(China)
IPC IPC(8): C08G18/66C08G18/42C08G18/32C08L75/06
CPCC08G18/3206C08G18/4238C08G18/664C08L75/06
Inventor 孙幼花
Owner 淮安市宏川箱包有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com