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Microgels in cross-linkable, organic media

一种微粒凝胶、介质的技术，应用在模塑体或涂层领域，达到稳定均匀分布的效果

Active Publication Date: 2012-11-14
ARLANXEO DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the presence of such emulsifiers or dispersants is disruptive in many applications

Method used

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  • Microgels in cross-linkable, organic media
  • Microgels in cross-linkable, organic media
  • Microgels in cross-linkable, organic media

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0162] Example 1: Hydroxyl-modified SBR gel in Desmophen 1150 (RFL 403A)

[0163] In the following examples, it is shown that using a homogenizer, applying a pressure of 900-1000 bar, and using a microgel based on hydroxyl-modified SBR, the microgel composition according to the present invention having a particle size of ≤220 nm can be prepared.

[0164] The composition of the microgel composition according to the present invention is shown in the following table:

[0165] 1.Desmophen 1150 79.7

[0166] 2.RFL 403A 20

[0167] 3.Tego Airex 980 0.3

[0168] Total 100

[0169] Desmophen 1150 is a branched polyol carrying ester and ether groups from Bayer AG used to prepare viscoelastic coatings.

[0170] Tego Airex 980, an organically modified polysiloxane, is a degassing agent from Tego Chemie ServiceGmbH.

[0171] RFL 403A is a cross-linked, surface-modified SBR-based rubber gel from RheinChemie Rheinau GmbH.

[0172] RFL 403A consists of 70% butadiene, 22wt% styrene, 5wt% ethylene glycol dim...

preparation Embodiment 1

[0174] Microgels based on hydroxyl-modified SBR are prepared by direct emulsion polymerization using the crosslinking monomer ethylene glycol dimethacrylate.

[0175] 350 g of the sodium salt of long-chain alkyl sulfonic acid (368.4 g of Mersolat K30 / 95 from Bayer AG) and 27 g of the sodium salt of methylene bridged naphthalenesulfonic acid (Baykanol PQ from Bayer AG) were dissolved in 2.03kg of water was put into a 5L autoclave. The autoclave was evacuated three times and filled with nitrogen. Thereafter, 872 g butadiene, 274 g styrene, 69 g ethylene glycol dimethacrylate (90%), 38.5 g hydroxyethyl methacrylate (96%) were added. While stirring, the reaction mixture was heated to 30°C. Then metered in by 25g water, 180mg ethylenediaminetetraacetic acid (Merck-Schuchardt), 150mg ferrous (II) sulfate 7H 2 O, 400mg Rongalit C (Merck-Schuchardt) and 500mg trisodium phosphate 12H 2 O composed of aqueous solution. The reaction is started by adding an aqueous solution of 350 mg p-men...

Embodiment 2

[0183] Example 2: Hydroxyl-modified SBR gel (RFL 403A) in Desmophen RC-PUR KE 8306

[0184] The following examples show that in a homogenizer, by applying a pressure of 900-1000 bar, the use of hydroxyl-modified SBR-based microgels can prepare particles with a particle size of mainly 50-500nm and an average particle size of about 250nm. The composition according to the invention of particles or agglomerates of particles.

[0185] The composition of the microgel paste is shown in the table below:

[0186] 1.RC-PUR KE8306 93.3

[0187] 2.Byk-LP X6331 0.2

[0188] 3.RFL 403A 6.5

[0189] Total 100

[0190] RC-PUR KE 8306 is an activated polyol blend from RheinChemie Rheinau GmbH for preparing PUR by a cold casting method.

[0191] The crosslinking component used was RC-DUR 120, an aromatic polyisocyanate from RheinChemie Rheinau GmbH.

[0192] Byk-LP X 6331 is a degassing agent for the PU system from Byk-Chemie GmbH.

[0193] RFL 403A is a cross-linked, surface-modified SBR-based rubber gel fr...

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Abstract

The invention relates to a composition containing at least one specific organic, cross-linkable medium and at least one microgel that is not cross-linked by energy-rich beams. The invention also relates to methods for producing one such composition, to uses thereof, to microgel-containing polymers produced from said compositions, and to moulded bodies or coatings produced from the same.

Description

Technical field [0001] The present invention relates to a composition comprising at least one specific organic crosslinkable medium and at least one microgel not crosslinked with high-energy radiation, a preparation method thereof, use of the composition, and a composition prepared thereby The polymer of the microgel, and the molded body or coating produced therefrom. Background technique [0002] It is known to use rubber gels, including modified rubber gels, mixed with various rubbers, for example to improve rolling resistance in the manufacture of motor vehicle tires (for example, see DE 42 20563, GB-PS 10 78 400, EP 405 216 and EP 854 171). In these cases, the rubber gel is always incorporated into the solid matrix. [0003] It is also known to introduce printing ink pigments in a highly dispersed form into a suitable liquid medium, ultimately for the preparation of printing inks (see, for example, EP 0 953 615 A2, EP 0 953 615 A3). This resulted in a particle size as fine a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/24C08J3/075C08J3/22C08K7/16C08L21/00C09D7/80C09D121/00C10M119/06
CPCC08L75/04C08G2220/00C08J3/075
Inventor T·齐泽尔T·弗吕L·赫利格W·奥布雷希特
Owner ARLANXEO DEUT GMBH
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