Organopolysiloxane emulsion compositon and resin composition

一种乳化组合物、聚硅氧烷的技术，应用在有机聚硅氧烷乳化组合物领域，能够解决没有均匀分散、白化、外观问题等问题，达到赋予滑动性的效果

Active Publication Date: 2019-04-02
SHIN ETSU CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if an emulsified composition of polydimethylsiloxane emulsified with a nonionic surfactant, an anionic surfactant, or a cationic surfactant is blended into a solvent-based resin composition such as DMF, there is no uniform Dispersion, no longer able to maintain emulsified state, polydimethylsiloxane precipitates
In addition, if a polydimethylsiloxane emulsion composition with a high degree of polymerization is blended into a resin composition such as a polyurethane resin or an acrylic resin, repelling and whitening may occur in the resin composition, and sometimes Problems with the appearance of the formed artificial leather or synthetic resin, etc.

Method used

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  • Organopolysiloxane emulsion compositon and resin composition
  • Organopolysiloxane emulsion compositon and resin composition
  • Organopolysiloxane emulsion compositon and resin composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0241] [Preparation of composition]

[0242] The specific emulsification method of the organopolysiloxane emulsion composition of this invention is mainly as follows.

[0243] The first is to combine (A) polyoxyalkylene-modified organopolysiloxane compound, (B) polyoxyalkylene-modified organosiloxane compound, (C) surfactant and (D) organopolysiloxane The method of compounding (E) water after the mixture is emulsified.

[0244] The second is to combine (A) polyoxyalkylene modified organopolysiloxane compound, (B) polyoxyalkylene modified organosiloxane compound, (C) surfactant, (D) organopolysiloxane and ( E) A method of emulsifying a mixture of water.

[0245] The third is to compound (A) polyoxyalkylene after emulsifying a mixture of (B) polyoxyalkylene-modified organosiloxane compound, (C) surfactant, (D) organopolysiloxane and (E) water Method for modifying organopolysiloxane compounds.

[0246] The fourth is to emulsify the mixture of (A) polyoxyalkylene modified orga...

Embodiment 1

[0277] Under nitrogen atmosphere, add by following general formula (8a)

[0278] [chem 33]

[0279]

[0280] Organopolysiloxane containing silicon atoms combined with hydrogen atoms (viscosity 2,800mm 2 / s, the amount of hydrogen atoms combined with silicon atoms (0.00625mol / 100g) 79 parts by mass (79g), by the following general formula (7a)

[0281] [chem 34]

[0282] CH 2 =CHCH 2 O(CH 2 CH 2 O) 25 (CH 2 CHCH 3 O) 35 H (7a)

[0283] After 21 parts by mass (21 g) of the indicated unsaturated group-containing polyoxyalkylene compound and 250 parts by mass (250 g) of isopropyl alcohol were heated, the internal temperature was adjusted to 75°C. Next, a toluene solution of 5 mass ppm of platinum vinylsiloxane complex was added to siloxane in terms of platinum metal, and stirred for 8 hours to synthesize the following compound with a reaction rate of 90% or more. Polyoxyalkylene-modified organopolysiloxane compound A represented by general formula (5a) (the weight av...

Embodiment 2

[0304] will be given by the following general formula (11b)

[0305] [chemical 40]

[0306]

[0307] (k represents a number that makes the viscosity described below.)

[0308] 30 parts by mass (30 g) of the two-terminal hydroxydimethylpolysiloxane (viscosity: 30 million mPa·s) and the polyoxyalkylene-modified organopolysiloxane compound obtained in Example 1 above were dissolved in the surfactant 15 parts by mass (15 g) of compound A-1 and 5 parts by mass (5 g) of the polyoxyalkylene-modified organosiloxane compound a represented by the above general formula (3a) obtained in Example 1 were used HIVIS MIX (manufactured by PRIMIX Corporation) It stirred at 35 rpm at 20-60 degreeC for 180 minutes, and the emulsion composition B was obtained. The average particle diameter was measured with Multisizer 3 manufactured by Beckman Coulter, and was 10.5 μm.

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Abstract

By incorporating a polyoxyalkylene-modified organo(poly)siloxane compound having a specific structure as an emulsifier or emulsification aid, an organopolysiloxane having a high degree of polymerization can be easily emulsified. The obtained organpolysiloxane emulsion composition has excellent resistance to polar solvents including DMF and is dispersible in water. When incorporated into a resin composition of either the solvent-based type including an organic solvent or the water-based type, the emulsion composition can hence impart slipperiness, wear resistance, and glossiness without causingcissing or blushing.

Description

technical field [0001] The present invention relates to an organopolysiloxane emulsion composition containing a polyoxyalkylene-modified organopolysiloxane compound as an emulsifier or an emulsification auxiliary agent, and a resin composition containing the emulsion composition. Background technique [0002] Resin compositions such as polyurethane resins and acrylic resins are classified into solvent-based resin compositions that use organic solvents to improve film-forming properties, and water-based resin compositions that do not contain organic solvents due to concerns about environmental pollution. . Solvent-based resin compositions use organic solvents with high boiling points such as N,N'-dimethylformamide (DMF) in many cases due to concerns about the volatilization of organic solvents during the drying process and adverse effects on the health of workers. . [0003] Artificial leather and synthetic leather that have been internally treated or surface-treated with s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/12C08L101/00
CPCC08L83/12C08L101/00C08G77/46C08G81/00C08L87/005C08G77/12C08G77/16C08G77/26C08G77/20C08G77/80C08L83/00C08L2205/025C08L2205/035
Inventor 高田有子多和田华子生方早央里
Owner SHIN ETSU CHEM CO LTD
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