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Polyurethane reaction type organometallic catalyst and its preparation method and application

An organometallic, reactive technology, applied in organic chemistry, chemical instruments and methods, metallocenes, etc., can solve the problems of high toxicity, personal injury, cumbersome and other problems, achieve strong targeted catalytic properties, reduce waste rate, solve bubble effect

Active Publication Date: 2022-07-22
广州优润合成材料有限公司
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  • 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 need to be used during processing to achieve proper gel time and faster curing time. Traditional methods The catalysts with the best effect are 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. They need to be protected when used, which is cumbersome and harmful to personnel. Potential damage; while organic bismuth-zinc catalysts still have a strong catalytic effect on the reaction of moisture and isocyanate, resulting in polyurethane products prone to bubbles, scales, bubbling and other undesirable phenomena, high scrap rate

Method used

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  • Polyurethane reaction type organometallic catalyst and its preparation method and application
  • Polyurethane reaction type organometallic catalyst and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0061] This example provides the preparation of a polyurethane-reactive organometallic catalyst.

[0062] (1) In a reactor equipped with a stirrer, a thermometer, and a condensing reflux device, add 18.6 g of ferrocene, and add 70-75 ml of dichloromethane to dissolve it completely; under nitrogen protection, slowly dropwise add 7.3 g of N , N-dimethylformamide, keep the temperature at -10 ℃ to -5 ℃, continue to stir for 10-20min after the dropwise addition; slowly add 15.3 grams of phosphorus oxychloride dropwise into the above reactor, and stir slowly after the dropwise addition is completed The temperature was raised to 40-50 °C, and the reaction was refluxed for 18-20 h; the dichloromethane was evaporated under reduced pressure under the condition of less than 60 °C, and the residue was poured into ice water at 0-4 °C, stirred, stood, and filtered with suction. The filtrate was The saturated sodium bicarbonate solution was neutralized to pH=7, extracted with ether, the extr...

Embodiment 2

[0066] This example provides the preparation of a polyurethane-reactive organometallic catalyst.

[0067] (1) In a reactor equipped with a stirrer, a thermometer, and a condensing reflux device, add 18.6 g of ferrocene, and add 70-75 ml of dichloromethane to dissolve it completely; under nitrogen protection, slowly dropwise add 7.3 g of N , N-dimethylformamide, keep the temperature at -10 ℃ to -5 ℃, continue to stir for 10-20min after the dropwise addition; slowly add 15.3 grams of phosphorus oxychloride dropwise into the above reactor, and stir slowly after the dropwise addition is completed The temperature was raised to 40-50 °C, and the reaction was refluxed for 18-20 h; the dichloromethane was evaporated under reduced pressure under the condition of less than 60 °C, and the residue was poured into ice water at 0-4 °C, stirred, stood, and filtered with suction. The filtrate was The saturated sodium bicarbonate solution was neutralized to pH=7, extracted with ether, the extr...

Embodiment 3

[0071] This example provides the preparation of a polyurethane-reactive organometallic catalyst.

[0072] (1) In a reactor equipped with a stirrer, a thermometer, and a condensing reflux device, add 18.6 g of ferrocene, and add 70-75 ml of dichloromethane to dissolve it completely; under nitrogen protection, slowly dropwise add 7.3 g of N , N-dimethylformamide, keep the temperature at -10 ℃ to -5 ℃, continue to stir for 10-20min after the dropwise addition; slowly add 15.3 grams of phosphorus oxychloride dropwise into the above reactor, and stir slowly after the dropwise addition is completed The temperature was raised to 40-50 °C, and the reaction was refluxed for 18-20 h; the dichloromethane was evaporated under reduced pressure under the condition of less than 60 °C, and the residue was poured into ice water at 0-4 °C, stirred, stood, and filtered with suction. The filtrate was The saturated sodium bicarbonate solution was neutralized to pH=7, extracted with ether, the extr...

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Abstract

The invention relates to a preparation method and application of a polyurethane reaction type organic metal catalyst. The polyurethane reaction type organometallic catalyst of the present invention has the following structure: wherein: Me 1 Metal ions selected from the group consisting of Fe, Ni, Ce, Zn, or Mn; R is C2-C10 alkyl, or aralkyl, cycloalkyl or alkoxy substituted with 2 to 10 carbon atoms Alkyl; X 1 and X 2 same or different, independently representing hydrogen, halogen, C1-C10 alkyl, or C1-C10 alkoxy; Me 2 Metal ions selected from Fe, Ni, Ce, Zn, Mn, Co, or Bi; X 3 is halogen, C1-C22 aliphatic carboxyl group, C1-C22 aliphatic mercapto group, aralkyl-substituted or cycloalkyl-substituted aliphatic carboxyl group with 1 to 22 carbon atoms, or aralkyl-substituted with 1 to 22 carbon atoms or cycloalkyl-substituted aliphatic thiol; and n≥1.

Description

technical field [0001] The present invention relates to the field of catalysts, in particular to a polyurethane reaction type organometallic catalyst for polyurethane processing. Background technique [0002] Polyurethane products are widely used. In order to make bubble-free polyurethane products, prolong the flow time of polyurethane resin in the mold and speed up the post-curing rate, catalysts are required during processing to achieve proper gel time and faster curing time. Traditional methods The catalysts with the best effect are organic heavy metal mercury, lead catalysts, and emerging organic bismuth zinc catalysts; however, organic metal mercury and lead catalysts are highly toxic and easily pollute the environment. There is potential damage; and the organic bismuth zinc catalyst still has a strong catalytic effect on the reaction of moisture and isocyanate, which leads to the occurrence of air bubbles, scales, bubbling and other undesirable phenomena in polyurethan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/22C07F19/00C07F17/02
CPCC08G18/222C07F17/02C07F17/00
Inventor 王泽永古凌华
Owner 广州优润合成材料有限公司
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