Antifogging agent for automobile inner window glass and preparation method of antifogging agent

A technology of window glass and anti-fogging agent, which is applied in the direction of chemical instruments and methods, and other chemical processes, and can solve problems such as affecting sightlines, injuring people in the car, and forming water marks on the glass surface, and achieves the effect of simple preparation and convenient use

Active Publication Date: 2017-06-13
上海开米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patents CN201410576210.5, CN201410576216.2, CN201410689443.6, CN201410689366.4, CN201410689378.7, and CN201510281559.0 all disclose a glass antifogging agent formula, which all contain more surfactants, and the Foam is very easy to form water marks on the glass surface if it accumulates for a long time for the interior window glass of the car that is not cleaned frequently, affecting the line of sight
Chinese patent CN201310351373.9 A high-efficiency automobile glass antifogging agent discloses a formula containing 40-68 parts of low-carbon alcohol and alcohol ether solvent, 2-3 parts of surfactant, 1-3 parts of methyl silicone oil, etc.; CN201110391824.2- The composition of the window glass anti-fogging agent contains 43-69 parts of low-carbon alcohol solvents in the disclosed formula. This anti-fogging agent using a large amount of solvents is not suitable for use in confined spaces and will cause harm to people in the car

Method used

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  • Antifogging agent for automobile inner window glass and preparation method of antifogging agent
  • Antifogging agent for automobile inner window glass and preparation method of antifogging agent

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preparation example Construction

[0075] The preparation method of above-mentioned antifogging agent for interior window glass of automobile comprises the following steps:

[0076] ①Add the spreading agent into the water, raise the temperature to 50-60°C, and stir evenly;

[0077] ②Add surface modification film-forming agent and stir evenly;

[0078] ③Add thickener and antistatic agent in sequence, heat up to 65-70°C, and stir evenly;

[0079] ④ When cooling to 30-40°C, add preservative and essence, stir evenly, and prepare the anti-fogging agent for automobile inner window glass.

Embodiment 1

[0081] 0.05% spreading agent;

[0082] 2% surface modification film former;

[0083] 0.01% preservatives;

[0084] Make up to 100% with water.

[0085] The formula also contains:

[0086] Antistatic agent 2%;

[0087] Thickener 1%;

[0088] Fragrance 3%.

[0089] Described spreading agent is polyether modified siloxane, and its structural formula is:

[0090] (CH 3 ) 3 SiO(CH 3 SiRO) m (CH 3 SiOCH 3 ) n Si (CH 3 ) 3

[0091] Among them, R stands for (CH 2 ) 3 O(EO) a (PO) b H), a+b=3~10, m+n=4~20.

[0092] The surface-modified film-forming agent is a copolymer of two monomers, A and B;

[0093] A is a quaternary ammonium compound containing alkene in the structure:

[0094] Cl - [R 1 (CH 3 ) 2 N + (CH 2 )nNR 2 COCR 3 =CH 2 ]

[0095] R 1 for C 1-4 the alkyl group, R 2 with R 3 for H or C 1-4 The alkyl group, n=1~6;

[0096] B is a mixture of alkyl acrylate and sodium acrylate in equal amounts.

[0097] Described preservative is Kethon.

...

Embodiment 2

[0106] 2% spreading agent;

[0107] 0.05% surface modification film former;

[0108] 1% preservatives;

[0109] Make up to 100% with water.

[0110] The formula also contains:

[0111] Antistatic agent 1%;

[0112] Thickener 3%;

[0113] Fragrance 1%.

[0114] Described spreading agent is polyether modified siloxane, and its structural formula is:

[0115] (CH 3 ) 3 SiO(CH 3 SiRO) m (CH 3 SiOCH 3 ) n Si (CH 3 ) 3

[0116] Among them, R stands for (CH 2 ) 3 O(EO) a (PO) b H), a+b=3~10, m+n=4~20.

[0117] The surface-modified film-forming agent is a copolymer of two monomers, A and B;

[0118] A is a quaternary ammonium compound containing alkene in the structure:

[0119] Cl - [R 1 (CH 3 ) 2 N + (CH 2 )nNR 2 COCR 3 =CH 2 ]

[0120] R 1 for C 1-4 the alkyl group, R 2 with R 3 for H or C 1-4 The alkyl group, n=1~6;

[0121] B is the mixture of styrene and maleic acid in equal amounts.

[0122] Described preservative is Kethon.

[0123] The ...

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Abstract

The invention relates to an antifogging agent for automobile inner window glass and a preparation method of the antifogging agent. An antifogging agent composition is prepared from a water solution of a spreading agent and a surface modification film forming agent, and further is prepared from a preservative, an antistatic agent, a thickener and an essence component. The composition is used for preventing fog from formation through reducing the surface tension of the glass; meanwhile, one waterproof film is formed on the surface of the glass; when the composition is sprayed on the glass, fog can be removed rapidly and traces are not formed on the surface of the glass to influence eyesight; no solvent is used, so that potential damages to human bodies are not caused in a sealed vehicle; the antifogging agent has friction resistance and has a lasting antifogging effect.

Description

technical field [0001] The invention relates to the technical field of glass antifogging, in particular to an antifogging agent for automobile inner window glass and a preparation method thereof. Background technique [0002] When we usually drive out, a clear vision is an important item to ensure our driving safety. But when it rains or the temperature is low, when the water vapor with a certain partial pressure is cooled to its dew point, the water vapor reaches saturation, and small water droplets are condensed. Atomization occurs when small water droplets adhere to the glass surface. The so-called "fogging" is the formation of a large number of small water droplets on the glass surface. Due to the different curvature radii of the small water droplets, the diffuse reflection of light is different. This fogging phenomenon has a strong impact on driving safety. At present, the methods generally adopted are: in winter, turn on the warm air to blow hot air on the glass, qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 于文李妮妮
Owner 上海开米科技有限公司
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