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Silane modified additives and silane modified polymer compounds

A silane-modified, water-soluble polymer technology, applied in the direction of adhesives, etc., can solve the problem that the mixing ratio of individual components cannot be adapted

Inactive Publication Date: 2010-07-14
WACKER CHEM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Furthermore, organosilicon compounds and polymers are present in the form of final mixtures in polymer compositions known from the prior art, and the mixing ratios of the individual components cannot be adapted in an arbitrary and economical manner to the various requirements in different applications

Method used

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  • Silane modified additives and silane modified polymer compounds
  • Silane modified additives and silane modified polymer compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Embodiment 1 (ex.1):

[0078] 8.04 kg of a 20% strength aqueous solution of polyvinyl alcohol and 1.25 kg of water were precharged into a double-jacketed reactor with a stirrer and heated to 70°C. After stirring for about 30 minutes, 175 g of N-(2-aminoethyl)(3-aminopropyl)trimethoxysilane were added slowly. After stirring at 70°C for 5 hours, the volatile components were removed from the aqueous solution under reduced pressure, and the solution was cooled to room temperature.

Embodiment 2

[0079] Embodiment 2 (ex.2):

[0080] Similar to Example 1, with the difference that 15% by weight of N-(2-aminoethyl)(3-aminopropyl)trimethoxysilane was used based on the weight of polyvinyl alcohol.

Embodiment 3

[0081] Embodiment 3 (ex.3):

[0082] Similar to Example 1, with the difference that 20% by weight of N-(2-aminoethyl)(3-aminopropyl)trimethoxysilane was used based on the weight of polyvinyl alcohol.

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Abstract

The invention relates to silane modified additives obtained by condensation of one or a plurality of silanes of the general formula (RO)3-nR1nSi (R2X) in a aqueous solvent under the condition of mixing with one or a plurality of water-soluble polymers, wherein each group and coefficient being as defined in the specification, based on the dry weight of the silane modified additives, the content of the water-soluble polymers being not less than 15 wt%, and optionally a mixture containing water obtained by drying.

Description

technical field [0001] The present invention relates to silane-modified additives, their production and their use, as well as silane-modified polymer compositions, their production and their use, for example in coatings or adhesives, especially as water-curing systems The use of bonding aids. Background technique [0002] Organosilicon compounds such as silanes or siloxanes are often used in polymer compositions as hydrophobizing agents or adhesion aids. DE 44 02 408 A1 proposes polymerizing ethylenically unsaturated organic monomers in the presence of water-dispersible organosilicon compounds and subsequently drying the polymer dispersion thus obtained by means of spray drying to produce dispersions Corresponding polymer compositions in powder form. DE 44 02 409 A1 proposes to spray aqueous dispersions of polymers together with water-dispersible organosilicon compounds in order to obtain correspondingly hydrophobized dispersion powders. In DE 10040 407 A1 polymer dispers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L31/04C08L23/08C09J123/08
CPCC04B40/0039C08L83/08C08L29/04C08L23/0853C04B24/42C04B2103/65C08L43/04C04B2103/0055C08L2666/02C08L2666/14C08L2666/04
Inventor A·哈希姆扎德M·基拉特
Owner WACKER CHEM GMBH
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