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

Oligomeric coordination hybrid organometallic catalyst and its preparation method and application

An organometallic and catalyst technology, applied in the field of oligomeric coordination hybrid organometallic catalysts, can solve the problems of easily polluting the environment, cumbersome, highly toxic, etc.

Active Publication Date: 2021-04-09
广州优润合成材料有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyurethane products are widely used. In order to produce non-bubble polyurethane products, prolong the flow time of polyurethane resin in the mold and accelerate the post-curing rate, catalysts are needed to delay gelation during processing. The catalyst with the best effect in traditional methods is organic Heavy metal mercury and lead catalysts, and emerging organic bismuth zinc catalysts; however, organometallic mercury and lead catalysts are highly toxic and easy to pollute the environment, and require protection when used, which is cumbersome and potentially harmful to personnel; while organic bismuth zinc catalysts It still has a strong catalytic effect on the reaction of moisture and isocyanate, resulting in the occurrence of bubbles, scales, bubbling and other undesirable phenomena in polyurethane products, and a high scrap rate

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

[0046] This embodiment provides an oligomeric coordination hybrid metal catalyst. Weigh 80g of NaOH and dissolve it in 300g of water, weigh 132.2g of cyclopentadiene and dissolve it in 300g of THF and place it in a three-necked flask, start a magnetic stirrer, gradually add the NaOH solution dropwise into the THF solution, and react for 1-2 hours. Add 129.6g NiCl 2 , keep the temperature at 70-80°C for 2-3 hours, let the reaction mixture stand, the solution is layered, the lower layer is green crystals, filter the upper layer solution, wash the lower layer crystals with deionized water 2-3 times, and use a vacuum spinner Evaporator to remove the residual water, to get nickelocene. Lower the temperature to below 50°C, add THF to dissolve the obtained nickelocene, add 60g of butyl lithium to stir the reaction, and pass CO into the reaction system 2 Gas, keep the temperature at 70-80°C and react for about 1-2 hours to get a dark green liquid, stop passing CO 2 gas, and cool th...

Embodiment 2

[0048] This embodiment provides an oligomeric coordination hybrid metal catalyst. Weigh 80g of NaOH and dissolve it in 300g of water, weigh 132.2g of cyclopentadiene and dissolve it in 300g of THF and put it in a three-necked flask, start the magnetic stirrer, gradually add the NaOH solution dropwise into the THF solution, react for 1-2 hours, add 129.6g NiCl 2 , keep the temperature at 70-80°C for 2-3 hours, let the reaction mixture stand still, the solution is layered, the lower layer is green crystal, filter the upper layer solution, wash the lower layer crystal with aqueous solution for 2-3 times, and remove it with a vacuum rotary evaporator Residual water, get nickelocene. Cool down to below 50°C, add THF to dissolve it, add 60g of butyllithium to stir the reaction, and pass CO 2 Gas, keep the temperature at 70-80°C and react for about 1-2 hours to get a dark green liquid, stop passing CO 2 gas, and the solution was cooled to below 50°C, and continued stirring; weighe...

Embodiment 3

[0050] This embodiment provides an oligomeric coordination hybrid metal catalyst. Weigh 80g of NaOH and dissolve it in 300g of water, weigh 132.2g of cyclopentadiene and dissolve it in 300g of THF and put it in a three-necked flask, start the magnetic stirrer, gradually add the NaOH solution dropwise into the THF solution, react for 1-2 hours, add 126.7g FeCl 2 , keep the temperature at 70-80°C for 2-3 hours, let the reaction mixture stand still, the solution is layered, the lower layer is orange crystals, filter the upper layer solution, wash the lower layer crystals with aqueous solution for 2-3 times, and remove them with a vacuum rotary evaporator Residual water, get ferrocene. Cool down to below 50°C, add THF to dissolve it, add 60g of butyllithium to stir the reaction, and pass CO 2 Gas, keep the temperature at 70-80°C and react for about 1-2 hours to get a brown liquid, stop the CO 2 gas, and cool the solution below 50°C, continue to stir; weigh 80g ZnSO 4 Add 200-3...

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 discloses an oligomeric coordination hybrid organic metal catalyst and a preparation method and application thereof. The oligomeric coordination hybrid organometallic catalyst of the present invention has the following structure [A-Me 1 ‑A‑B‑Me 2 ] n ; Wherein: A is a cyclopentane hydrocarbon group C 5 H 5 ‑;Me 1 , Me 2 are respectively selected from the following metal ions: Ca, Ce, Fe, Ni, Ti, Bi, Zn; n is greater than 1; B is -RCOO — . The catalyst of the present invention can be used in various fields of polyurethane materials, including non-foamed polyurethane (CASE), flexible foam, rigid foam, composite materials, and the like. The catalyst of the invention is green and environmentally friendly, does not contain highly toxic heavy metals, has strong targeted catalysis properties, and has low catalytic activity for the reaction of water and isocyanate, and can better solve the phenomenon of bubbles, scales, bulges and the like occurring in polyurethane products, and greatly improves the efficiency of the catalyst. Reduce scrap rates.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to an oligomerization coordination hybrid organometallic catalyst for polyurethane processing. Background technique [0002] Polyurethane products are widely used. In order to produce non-bubble polyurethane products, prolong the flow time of polyurethane resin in the mold and accelerate the post-curing rate, catalysts are needed to delay gelation during processing. The catalyst with the best effect in traditional methods is organic Heavy metal mercury and lead catalysts, and emerging organic bismuth zinc catalysts; however, organometallic mercury and lead catalysts are highly toxic and easy to pollute the environment, and require protection when used, which is cumbersome and potentially harmful to personnel; while organic bismuth zinc catalysts It still has a strong catalytic effect on the reaction of moisture and isocyanate, which leads to the occurrence of bubbles, scales, bubbling and o...

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): C08G18/22C08G18/66C08G18/48C08G18/32C08G18/38
CPCC08G18/222C08G18/225C08G18/227C08G18/4808C08G18/4812C08G18/4829C08G18/4854C08G18/6685
Inventor 王泽永
Owner 广州优润合成材料有限公司
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