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

Transparent highly flexible gel-like polyurethane elastomer

A polyurethane elastomer, high-elasticity technology, applied in the field of polyurethane elastomers, can solve the problem that the performance parameters cannot meet the requirements at the same time, and achieve the effect of good elasticity and better performance

Inactive Publication Date: 2010-02-10
冯建龙
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defect that the various performance parameters of the existing transparent high-elastic polyurethane elastomers cannot meet the requirements at the same time, and to provide a mixture of polyester or polyether polyol mixtures, isocyanate prepolymers, and plasticizers. Prepared transparent and highly elastic jelly-like polyurethane elastomer

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

[0025] The raw materials are the following components:

[0026] The weight ratio of component A to component B plus component C is 1.15:1, wherein the weight ratio of component B to component C is 1:0.82, and component A is a mixture of polyester or polyether polyols. B is isocyanate prepolymer and component C is filler.

[0027] The polyester or polyether polyol mixture contains the following components by weight: (in kilograms) polyester polyol 55, polymer polyol 38, and functional polyol 7.

[0028] The isocyanate prepolymer contains the following components by weight (unit kilogram)

[0029] Diphenylmethane diisocyanate 38, polyester polyol 24, 1-6 hexane diisocyanate 38.

[0030] The filler contains the following components by weight (unit kilogram)

[0031] Dimethoxyethyl phthalate (DMEP, plasticizer, or KC988) 25, auxiliary component (dioctyl phthalate, namely DOP, or diisodecanoate phthalate, namely DIDP ) 75.

[0032] The preparation method of the present invention is:

[0033] ...

Embodiment 2

[0039] The raw materials are the following components:

[0040] The weight ratio of component A to component B plus component C is 1.18:1, and the weight ratio of component B to component C is 1:0.85. Component A is a mixture of polyester or polyether polyols, component B is isocyanate prepolymer, and component C is filler.

[0041] The polyester or polyether polyol mixture contains the following components by weight: (in kilograms) polyester polyol 60, polymer polyol 30, and functional polyol 10.

[0042] The isocyanate prepolymer contains the following components by weight (in kilograms):

[0043] Diphenylmethane diisocyanate 28, polyester polyol 30, 1-6 hexane diisocyanate 42;

[0044] The filler contains the following components by weight (unit kilogram):

[0045] Dimethoxyethyl phthalate (DMEP, plasticizer, or KC988) 100

[0046] The preparation method of Example 2 is the same as that of Example 1.

Embodiment 3

[0048] The raw materials are the following components:

[0049] The weight ratio of component A to component B plus component C is 1.2:1, and the weight ratio of component B to component C is 1:0.8. Component A is a mixture of polyester or polyether polyols, component B is isocyanate prepolymer, and component C is filler.

[0050] The polyester or polyether polyol mixture contains the following components by weight (in kilograms):

[0051] Polyester polyol 55, polymer polyol 32, functional polyol 13

[0052] The isocyanate prepolymer contains the following components by weight (in kilograms):

[0053] Diphenylmethane diisocyanate 40, polyester polyol 23, 1-6 hexane diisocyanate 37,

[0054] The filler contains the following components by weight (in kilograms):

[0055] Dimethoxyethyl phthalate (DMEP, plasticizer, or KC988) 36, auxiliary components (dioctyl phthalate, namely DOP, or diisodecanoate phthalate, namely DIDP )64.

[0056] The preparation method of Example 3 is the same as that...

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 the technical field of elastomer technology, in particular to a transparent highly flexible gel-like polyurethane elastomer (EPU). The elastomer is prepared by a component A,a component B and a component C, wherein the component A is polyester or a polyether glycol mixture, the polyether glycol mixture contains at least polyether glycol, polyol and functional polyol, thecomponent B is isocyanate prepolymer containing at least diphenylmethane diisocyanate, polyester polyol, 1,6-cyclohexane diisocyanate, the component C is filler containing plasticizer, the weight ratio of the component A to the sum of the component B and the component C is 1.15-1.2:1 and the weight ratio of the component B to the component C is 1:0.8-0.85. The beneficial effect of the invention isthat all the performance parameters of the obtained polyurethane elastomer can meet the demand simultaneously, the performance is excellent, the elasticity is good, and the product is environmentallyfriendly and corresponds to the demand of industrial production.

Description

Technical field: [0001] The invention relates to the technical field of elastomers, in particular to a polyurethane elastomer (referred to as EPU). Background technique: [0002] At present, in the existing technology, the performance of transparent and highly elastic polyurethane elastomer (PU) has the following key technical items: product hydrolysis resistance, high tensile strength, high tear strength, product environmental protection, non-toxicity, etc. Can not meet the requirements at the same time (see attached table 1), can not produce practical products under the conditions of real industrialization. [0003] Schedule 1 [0004] Detection method Test items Testing Machine Standard ATXY-WJ-006 Penetration firmness Sweat resistance testing machine GT-7023 5 ATXY-WJ-032 Yellowing resistance test Yellowing resistance testing machine GT-7035-UA Level 3-4 ATXY-WJ-001 Material identification PU ATXY-WJ-032 Color change after hydrolysis Standard ligh...

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
IPC IPC(8): C08G18/76C08G18/73C08G18/66C08G18/42C08G18/48C08K5/12
Inventor 冯建龙
Owner 冯建龙
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