Fluororesin-containing electrodeposition coating material

A technology of electrodeposition and coating, applied in the field of electrodeposition coatings, can solve the problems of insufficient storage stability of coatings, low compatibility between fluororesin composition and curing agent, etc., and achieve the effect of sufficient storage stability

Pending Publication Date: 2018-11-23
LIXIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the fluororesin composition has low compatibility with the curing agent, the storage stability as a paint is not sufficient

Method used

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  • Fluororesin-containing electrodeposition coating material
  • Fluororesin-containing electrodeposition coating material
  • Fluororesin-containing electrodeposition coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] The fluorine-containing copolymer varnish 2 and the acrylic polymer varnish 1 were mixed so that the solid content mass ratio would be 70:30. 120 parts by mass of the obtained mixed varnish (60 parts by mass as solid content), 4.5 parts by mass of triethylamine (0.8 equivalent in acid value with respect to the mixed varnish), and 100% fully etherified melamine resin (NIKALAC MX-45, triethylamine) were prepared. It was mixed with 40 parts by mass of Chemical Industry Co., Ltd.), and 835.5 parts by mass of deionized water was added with stirring to prepare the electrodeposition coating composition of Example 1.

Embodiment 2～6、 comparative example 1～6

[0119] The same substances and Method The electrodeposition paint compositions of Examples 2 to 6 and Comparative Examples 1 to 6 were prepared.

[0120] Using the obtained electrodeposition paint compositions of the respective Examples and Comparative Examples, evaluations of paint properties shown below were performed.

[0121] [Coating stability test (standing for 24 hours)]

[0122] After the above-mentioned coating composition was prepared, the appearance of the coating composition after standing for 24 hours was visually evaluated according to the following criteria, and evaluation B was evaluated as acceptable, and evaluations C and D were evaluated as unacceptable. The results are shown in Table 3 and Table 4.

[0123] (Evaluation Criteria)

[0124] B: No abnormality confirmed

[0125] C: Sedimentation of a part of the resin is observed

[0126] D: The resin settles completely

[0127] [Coating stability test (stirring for 1 month)]

[0128] After the above coat...

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Abstract

Provided is a fluororesin-containing electrodeposition coating composition which, although being an electrodeposition coating material, has sufficient storage stability. The electrodeposition coatingcomposition comprises: a fluorocopolymer comprising perhaloolefin units, units of a monomer represented by the following general formula (1), units of a carboxylated vinyl monomer, and units of a hydroxylated vinyl monomer; and an acrylic polymer. In the following general formula (1), R is preferably a C9 or higher hydrocarbon group. CH2=CH-O-CO-R (1) (In the formula, R is a C6 or higher hydrocarbon group.)

Description

technical field [0001] The present invention relates to an electrodeposition paint containing a fluororesin. Background technique [0002] Conventionally, a technique of using a fluororesin composition excellent in weather resistance as a crosslinked water-based paint is known. This cross-linked water-based paint is generally inferior in coating film performance compared to a cross-linked solvent paint, and various improvements have been made. However, since the fluororesin composition has low compatibility with a curing agent, storage stability as a paint is insufficient. [0003] Therefore, in order to solve the above-mentioned problems, an invention related to an aqueous fluororesin dispersion has been proposed. The above-mentioned aqueous fluororesin dispersion comprises: a perhalogenated olefin unit, a non-fluorinated vinyl monomer unit with 2 to 4 carbon atoms, a 10- A fluorinated copolymer of an undecylenic acid unit and a hydroxyl group-containing vinyl monomer uni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D127/12B32B15/08B32B27/30C08F214/18C09D5/44C09D133/00
CPCC08F220/1806C08F220/1802C08F220/1804C09D5/4473C09D5/4407C09D127/18C08F214/265C08F220/14C08F210/10C08F216/1416C08F218/10C08F220/00C08F218/08C08L33/12C08F212/08C08F220/20C08F220/06B05D7/14B05D2202/25B05D2502/00C08F214/18C08F220/26C09D5/4411C09D127/12C09D133/066C09D133/08B32B15/08
Inventor 大室杰海老原守井本克彦川部琢磨
Owner LIXIL CORP
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