Antifogging coating composition and article coated therewith

一种防雾涂料、组合物的技术，应用在涂层、对表面涂布液体的装置等方向，能够解决很难擦掉污染、污染、流水的痕迹显著等问题

Inactive Publication Date: 2004-10-06
NOF CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at the same time, a water film is formed on the surface of the anti-fog coating film after hardening, and the water is flowed down to be dried, but there is a problem in appearance that traces of running water are conspicuous and cause contamination
[0005] In the case when an anti-fog coating film is formed on the inner surface such as a meter cover or a lamp cover, it is difficult to wipe off the contamination of running water traces due to the structure of the meter or lamp

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0094] Hereinafter, the present invention will be further explained by referring to Reference Examples, Preparation Examples, Examples and Comparative Examples. Hereinafter, % means % by weight.

[0095] Reference example 1 (preparation of block polymer A)

[0096] In a reactor equipped with a thermometer and a stirrer, 550 g of propylene glycol monoethyl ether was added as an organic solvent. The reactor was simultaneously heated to 70° C. under the nitrogen gas flow. In the reactor, drop the mixed solution in 2 hours, and its component is 5g polyperoxide as the initiator of polymerization reaction, and its molecular formula is as shown in (6); 135g of N,N-dimethylacrylamide as a water-soluble vinyl monomer; and 15 g of N-methylolacrylamide as a crosslinkable vinyl monomer. Then, a polymerization reaction was carried out for another 2 hours, thereby synthesizing a matrix of a block copolymer.

[0097] Then, within 1 hour, a mixed solution consisting of 140 g of methyl met...

example 1

[0111] Example 1 (preparation of anti-fog coating composition)

[0112] Anti-fog coating composition is mixed by following compound: 140g block copolymer A (solution) prepared by reference example 1, 2g sodium dioctylsulfosuccinate (produced by NOF company, product name: RapizolA-80) , 0.5g polyoxyethylene octyl phenyl ether (produced by NOF company, product name: Nonion discloses HS-210HS-210), diisobutyl phosphate as surfactant, and organic silicon additive (Toray organic Silicon company production, product name: SH28PA).

[0113] The composition ratio (parts by weight, block copolymer / surfactant / acid alkyl phosphate) in the solid component of the anti-fog coating composition is 100 / 5 / 0.1.

example 2-5 and comparative example 1-4

[0114] Example 2-5 and comparative example 1-4 (preparation of anti-fog coating composition)

[0115] The anti-fog coating compositions in Examples 2-5 and Comparative Examples 1-4 were prepared according to the method shown in Example 1, but the types and amounts of materials used were changed. The types and amounts of materials used in the anti-fog coating composition and the final results of preparation are shown in Table 1 and Table 2.

[0116] example

1

2

3

4

5

Block copolymer A (g)

140

140

0

0

140

Block copolymer B(g)

0

0

0

140

0

Graft copolymer (g)

0

0

165

0

0

Random Copolymer (g)

0

0

0

0

Surfactant

(g)

a

2

4

5.4

2

0

b

0.5

1

1.5

0.5

...

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Abstract

An antifogging paint composition for forming an antifogging coating film without generation of the running water trace. The antifogging paint composition contains a block or grafted copolymer comprising a hydrophilic polymer part formed from a vinyl monomer having a cross-linking functional group and a water-soluble vinyl monomer, and a hydrophobic polymer part formed from a non water-soluble vinyl monomer, and an acidic alkyl phosphate.

Description

technical field [0001] The invention relates to an anti-fog coating composition. More specifically, the present invention relates to an antifog coating composition for forming an antifog coating film on the surface of a transparent plastic material or glass material, and a coating substance having the formed coating film. Background technique [0002] Conventional thermosetting antifog compositions using random copolymers do not have sufficient adhesion properties to plastic or glass substrates. The present inventors disclosed a thermosetting antifogging agent composition having enhanced adhesion properties in Japanese Laid-Open Patent Publication Nos. hei6-212146 and hei6-107967. In the case of forming a coating film with an antifogging agent composition, in order to obtain a hard coating film with good properties, severe process conditions are required: a high temperature of 120° C. or higher and a hardening time of 30 minutes or longer. Sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/04C08F283/06C08F291/00C08F293/00C08F297/00C08K5/521C09D133/06C09D151/00C09D153/00
CPCC08F291/00C08K5/521C08F297/00C09D151/003C08F265/04C09D133/066C08F293/005C08F283/06C09D153/00C09D151/00C08L53/00C08L2666/02C08L2666/40C09D133/06
Inventor 滝塚典和原田英治杉浦正人
Owner NOF CORP
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