Aqueous coating agent composition

A technology of coating agent and composition, which is applied in the field of water-based emulsion-type coating agent composition, and can solve the problems of uniform coating property of coating agent, non-adhesive water repellency, insufficient lubricity and adhesiveness, etc. , to achieve the effects of excellent adhesion, low coefficient of friction and excellent wear resistance

Active Publication Date: 2022-02-01
MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, the coating agent has insufficient uniform coating properties, non-adhesive properties, water repellency, lubricity, and adhesion to substrates. Request for further improvement

Method used

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  • Aqueous coating agent composition
  • Aqueous coating agent composition
  • Aqueous coating agent composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~15

[0107] Examples 1 to 15 and Comparative Examples 1 to 7

[0108] As shown in Table 1 to Table 3 to form each component of the fitting shown in Table, the aqueous coating composition was prepared. Incidentally, in Examples and Example 6, not directly add zinc octylate, but premixed with the surfactant added 1 embodiment. Further, in addition to the particularly stated, an emulsion with water as a dispersion medium.

[0109] Details of each component in the table below.

[0110]

[0111] · Polydimethylsiloxane emulsion -1

[0112] Ratio of 50% at the end of 1,400,000mPa · s viscosity containing a hydroxy terminated polydimethylsiloxane emulsion polymerization of

[0113] · Polydimethylsiloxane emulsion -2

[0114] At a ratio of 50% 10,000,000mPa · s viscosity containing terminal hydroxyl terminated polydimethylsiloxane emulsion mechanical emulsification

[0115]

[0116] Methyl hydrogen siloxane emulsion

[0117] Containing a ratio of 30% of the average formula: (CH 3 ) 3 SiO (CH ...

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Abstract

The present invention provides an aqueous coating agent composition which does not contain an organic tin compound and forms a coating film that has good lubricity, excellent bondability (adhesiveness) and excellent wear resistance. This aqueous coating agent composition contains (A) a polydiorganosiloxane which has a viscosity (at 25 DEG C) of 50 to 100,000,000 mPa.s, while having both terminals blocked with hydroxyl groups, (B) a polyorganohydrogen siloxane which has at least three hydrogen atoms in each molecule, (C) a zinc compound which serves as a curing catalyst, (D) an organic compound having at least one of a primary amino group and a secondary amino group and/or a polyorganosiloxane, (E) an adhesion improving component and (F) spherical fine particles.

Description

Technical field [0001] The present invention relates to an aqueous dispersion medium as an aqueous coating composition, in particular, relates to a compound as a free organotin curing catalyst, by coating the surface of rubber, plastic substrate to form lubricating property, and the base an adhesive material (adhesion) and excellent in abrasion resistance of the coating film of the aqueous emulsion type coating composition. Background technique [0002] Conventionally, as automotive weatherstrip ethylene - propylene - diene terpolymers (EPDM) rubber, a variety of rubber products, in order to impart the non-adhesive surface, water repellency, abrasion resistance, lubricity, applying a coating agent comprising a polyorganosiloxane composition. [0003] Add polydiorganosiloxane coating agent such as, for example, is known having a hydroxyl group at the terminal having a hydrogen atom bonded to a silicon atom of the polyorganosiloxane and / or organoalkoxysilane and a curing catalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D183/05C09D7/63C09D7/65C09D7/20C08J7/046C08J9/36C08L23/16
CPCC09D183/04C09D7/63C09D7/65C09D7/20C08J7/046C08J9/365C08J2323/16C08J2483/04C08L83/04C08L83/08C08L51/003C08L75/04C08L33/04C08K5/17C08K5/098C08K5/544C08K5/5435C08K5/16C08L23/28B05D7/02B05D2201/02B05D2518/10B05D2401/20B05D3/0254B05D5/08B05D2601/20C09D7/70C09D7/68C09D7/69C09D5/024C08G77/12C08G77/26C08G77/18C08G77/08C08L83/00C08L23/286C08G2150/00C08K5/5415C08L23/14
Inventor 木村正宪
Owner MOMENTIVE PERFORMANCE MATERIALS JAPAN LLC
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