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

Process for producing frost resistant polyurethane viscose glue

A technology of polyurethane glue and frost resistance, applied in the direction of polyurea/polyurethane adhesive, monocarboxylate copolymer adhesive, adhesive, etc., can solve the problems of complicated storage and use process, increase cost, etc. Effect of glue storage and use temperature

Inactive Publication Date: 2009-04-08
上海九元石油化工有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyurethane adhesives with highly crystalline properties have the advantages of fast drying and good bond strength, but because of the gel problem, it seriously affects the use and storage in winter, especially in severe cold areas. In traditional applications, manufacturers and users have to build insulation Room storage or various heating measures before use to restore the performance of the glue, which makes the storage and use process complicated and greatly increases the cost

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

[0017] First, add a mixed organic solvent A composed of 80g butyl acetate and 80g N'N-dimethylformamide, mix well, and gradually add B while stirring at a speed of 600-1000 rpm: 200g toluene diisocyanate, C : 100g polyethylene adipate and 100g polybutylene adipate, D: 0.2g dibutyltin dilaurate, heat up to 50-100°C for 2-5 hours, then add E: 1, React 5g of 4-butanediol for 2.5h, then lower the temperature to 35-60°C, add a mixed organic solvent F consisting of 54g of butanone and 54g of ethyl acetate, and then add 11g of JY8500 antifreeze modifier G, fully Stir and mix for 1 hour, finally add 8g of JY-Stab 8733 antioxidant as auxiliary agent H, fully stir and mix for 45 minutes, lower the system to room temperature, filter and pack to obtain the finished product.

Embodiment 2

[0019] First add A: 150g of N'N-dimethylformamide, gradually add B: 100g of modified diphenylmethane diisocyanate and 50g of toluene diisocyanate while stirring at a speed of 600-1000 rpm, C: Polybutylene adipate 190g, D: Dibutyltin dilaurate 0.1g, heat up to 50-100°C for 2-5h, then add E: Trimethylolpropane 4g for 2.5h, then cool down to 35-60°C, add F: butanone 100g, then add 5g JY9508 antifreeze modifier G, stir and mix thoroughly for 1 hour, lower the system to room temperature, filter and pack to obtain the finished product.

Embodiment 3

[0021] First add A: 180g of butyl acetate, gradually add B: 160g of modified diphenylmethane diisocyanate, C: 150g of polyethylene adipate and polyethylene adipate 50g of butanediol diacid, D: 0.1g of dibutyltin dilaurate, heat up to 50-100°C for 2-5h, then add E: 9g of 1,4-butanediol for 2h, then cool down to 35 ~60°C, add F: 100g of ethyl acetate, then add 15g of JY9053 antifreeze modifier G, stir and mix thoroughly for 1 hour, finally add 8g of UV-328 UV absorber as auxiliary agent H, and mix well After 30 minutes, the system was lowered to room temperature, filtered and packaged to obtain the finished product.

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

PropertyMeasurementUnit
boiling pointaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of a polymer material and chemical industry, in particular to a preparation method of frost resistance polyurethane glue, which is characterized in that: isocyanate or an isocyanate compound B, polyester polyol C with symmetrical structure, and a catalyst D are added into an organic solvent A for reaction for 2 to 5 hours at 50 and 100 DEG C; then a chain extendor E is added for reaction for 1 to 4 hours; the temperature is reduced to 35 to 60 DEG C; an organic solvent F of 10 to 25 percent is added for dilution to achieve solid content of 35 to 65 percent; a frost resistance modifier G is added for stirring; then 0 to 10 percent of other accessory ingredients are added for fully stirring; the temperature is reduced to be 20 to 35 DEG C; and then the mixture is filtered and packaged for obtaining the finished product. The adding amount of the frost resistance modifier G accounts for 0.01 to 10 percent of the weight of the finished frost resistance polyurethane glue system. Compared with the prior art, the preparation method of the frost resistance polyurethane glue can be used under a condition of minus15 DEG C to 5 DEG C, thus reducing the storage and use temperature of the glue, and therefore can be broadly applied to the industries of vehicles and furniture.

Description

[technical field] [0001] The invention relates to the technical fields of polymer materials and chemical industry, in particular to a preparation method of frost-resistant polyurethane glue. [technical background] [0002] Polyurethane adhesives with highly crystalline properties have the advantages of fast drying and good bond strength, but because of the gel problem, it seriously affects the use and storage in winter, especially in severe cold areas. In traditional applications, manufacturers and users have to build insulation Room storage or use various heating measures before use to restore the performance of the glue, which makes the storage and use process complicated and greatly increases the cost. [Content of the invention] [0003] The object of the present invention is to enable the polyurethane glue with highly crystalline structure to be stored and used at -10°C. [0004] In order to achieve the above object, a preparation method of frost-resistant polyurethan...

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): C09J175/06C09J131/04
Inventor 程诗强陈县萍
Owner 上海九元石油化工有限公司
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