Oligomer diacetyl acetate alkylene diester metal chelate coating drier and preparation and application

A diacetoacetate and metal chelate technology, which is applied in the direction of drier, chemical instruments and methods, etc., can solve the problems that have not been seen, and the emulsification technology of drier is backward, so as to achieve low toxicity and increase storage stability , the effect of high yield

Inactive Publication Date: 2007-05-02
上海市涂料研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, NUDEX WEB series drier of ELEMENTS company, ADDITOL VXW 4940, 6206 of UCB company, etc. Compared with them, domestic manufacturers are relatively backward in the emulsification technology of traditional drier, and no such products have been seen so far.

Method used

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  • Oligomer diacetyl acetate alkylene diester metal chelate coating drier and preparation and application
  • Oligomer diacetyl acetate alkylene diester metal chelate coating drier and preparation and application
  • Oligomer diacetyl acetate alkylene diester metal chelate coating drier and preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A: Preparation of ethylene diacetoacetate

[0074] 1. Reaction equation:

[0075]

[0076] 2. Formulation:

[0077] Reactant Mole Mass (g)

[0078] Ethylene glycol 1.0 62

[0079] Diketene 2.0 168

[0080] Triethylamine (catalyst) 0.5

[0081] 3. Operation process:

[0082] Install the four-neck flask on an electric constant speed stirrer, install a reflux water separator, a condenser tube, and a drying tube at the left port, install a constant-pressure dropping funnel at the right port, and connect the nitrogen inlet pipe at the top port of the dropping funnel. The four ports were equipped with thermometers, and the reaction flask was heated with an electric heating mantle without an open flame.

[0083] Put ethylene glycol (anhydrous) and triethylamine (anhydrous) into the reaction bottle according to the recipe, heat up under stirring, and protect with nitrogen gas. Heat to 80°C, and slowly add diketene dropwise after the temperature stabilizes (the reactio...

Embodiment 2

[0114] A: Preparation of 1,4-butylene diester of diacetoacetate

[0115] 1. Reaction equation:

[0116]

[0117] 2. Formulation:

[0118] Reactant Mole Mass (g)

[0119] 1,4 Butanediol 1.0 90

[0120] Diketene 2.2 184.8

[0121] Triethylamine (catalyst) 0.5

[0122] 3. Operation process:

[0123] According to the reaction device of Example 1, 1,4-butanediol and triethylamine were put into the reaction bottle, and the temperature was raised under stirring, and nitrogen protection was carried out. Heating to 80°C, and slowly adding diketene dropwise after stabilization (the reaction exothermic is violent, so the rate of addition is controlled so that the temperature is controlled at about 80°C). After the diketene is added dropwise, react at 90°C-100°C for 2 hours.

[0124] After the reaction is completed, distill under reduced pressure to recover unreacted diketene (diketene is easy to polymerize at high temperature) at 10 mm Hg, with a boiling range of 50° C. to 70° ...

Embodiment 3

[0155] A: Preparation of 1,3 neopentylene diester of diacetoacetate:

[0156] 1. Reaction equation:

[0157]

[0158] 2. Formulation:

[0159] Reactant Mole Mass (g)

[0160] Neopentyl glycol 1.0 104

[0161] Diketene 2.0 168

[0162] Triethylamine (catalyst) 0.5

[0163] 3. Operation process:

[0164] According to the reaction device of Example 1, put neopentyl glycol and an appropriate amount of toluene into the reaction bottle, heat up to 114°C under stirring, reflux for dehydration, cool to 80°C after removing water, add triethylamine, and start after the reaction temperature is stable. Slowly add diketene dropwise, and the temperature is controlled at about 80°C. After the diketene is added dropwise, react at about 80°C for 1 hour, depending on the completeness of the reaction of diketene, and the end point of the reaction is controlled by gas chromatography.

[0165] After the reaction was complete, the reactant was cooled. Toluene and diketene were distilled ...

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Abstract

This invention is an oligomerization diacetic acid alkylene diester metal chelate compound, and it is a neotype oxidoreduction polymerizing siccative which can be used in coating industry. It not only can be used in solvent coating containing dry vegetable oil, but also can be used in waterborne coating after making into aqueous dispersions. The diacetic acid alkylene diester metal chelate agent is made by the reaction of dihydric alcohol and diethenone under accelerant, and then this metal chelate agent reacts with inorganic metallic salt to obtain oligomerization diacetic acid alkylene diester metal chelate compound siccative. The drying properties of this siccative are similar to traditional metallic soap siccative in solvent coating and waterborne coating. But it is different from traditional metallic soap siccative, beacuase this invention is oligomerization metal chelate polymer, which can be preserved in solid. It is of light color and luster, low toxicity, extensive synthesis material, simple preparation and higher yield, and so it is suitable for industrial production.

Description

technical field [0001] The invention relates to a drier for solvent-based paints containing drying vegetable oils and water-based paints, in particular to an oligomeric metal chelate containing bis-β-diketone esters, which is composed of alkylene bis Acetoacetate diester chelated with metal elements is a new type of paint drier. Background technique [0002] The invention is an oligomeric diacetoacetate alkylene diester metal chelate compound and a novel drier. As we all know, paint driers have a long history of application in solvent-based paints containing drying vegetable oils. The traditional driers are organometallic soaps, such as cobalt isooctanoate, manganese, rare earth, cobalt naphthenate, manganese, rare earth, etc. . There are various problems in the application process of traditional metal soaps. In recent years, the continuous development of water-based coatings has made these problems more prominent. Over the years, the main method to solve these problems ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F9/00
Inventor 何新照吕俊杰
Owner 上海市涂料研究所有限公司
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