Crosslinkable materials based on organosilicon compounds

一种交联组合物、化合物的技术，应用在有机化学、周期表第4/14族元素的化合物、化学仪器和方法等方向，能够解决不足粘着剂等问题

Inactive Publication Date: 2010-05-26
WACKER CHEM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of these compositions is that only insufficient adhesion to plastics and metals is achieved

Method used

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  • Crosslinkable materials based on organosilicon compounds
  • Crosslinkable materials based on organosilicon compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0177] Example 1 (E1)

[0178] Preparation of Polymer 1

[0179] 970 gram average molecular weight is 18,000g / mol, OH number is 7.0mg KOH / g, molar mass distribution Mw / Mn is 1.1 and the poly(propylene glycol) glycol content of monoalcohol content that is 23,000mPa·s low (with " The trade name of Acclaim Polyol 18200N” was purchased from BayerMaterialScience AG, Germany), 30 g of 3-isocyanatopropyl-trimethoxysilane and 0.1 g of bismuth octoate were reacted at 90 ° C for 1 hour, and then 1 g of methanol was added to capture isocyanate groups . The reaction product was cooled to room temperature and stored in the absence of moisture.

[0180] A clear, colorless polymer with a viscosity of 35,000 mPa·s was obtained.

[0181] 400 g of polymer 1 thus prepared, 250 g of polypropylene glycol-monohydroxyl-monobutyl ether having a viscosity of 240 mPa·s at 50° C. and a water content of 120 ppm according to Karl-Fischer titration were dissolved in 1.6 6.4 grams of N-(2-ethoxyphenyl)-...

Embodiment 2

[0183] Example 2 (E2)

[0184] The procedure described in Example 1 was repeated except that the mixture was composed of about 25% methyl-1,2,2,6,6-pentamethyl-4-piperidinyl sebacate and about 75% 3 g of HALS mixture consisting of bis(1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate, also using 3 g of CAS dissolved in 5 g of dipropylene glycol dimethyl ether Polymer HALS No. 192268-64-7 (with The product name of 2020 was purchased from Bodo, Germany Chemie).

[0185] After 1 day of storage at room temperature, tests 1 to 3 were carried out. The results are summarized in Table 1.

Embodiment 3

[0186] Example 3 (E3)

[0187] The procedure described in Example 1 was repeated, except that instead of 6.4 g of N-(2-ethoxyphenyl)-N'-(4-isododecylphenyl) dissolved in 1.6 g of xylene Ethylenediamine, using 6.0 g of N-(2-ethoxyphenyl)-N'-(2-ethylphenyl)ethylenediamide dissolved in 24 g of 1-methyl-2-pyrrolidone ( by The trade name of 312 was purchased from Bodo, Germany Chemie).

[0188] After 1 day of storage at room temperature, tests 1 to 3 were carried out. The results are summarized in Table 1.

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Abstract

Moisture-curable crosslinkable composition (I) comprises: at least one silane compound (A1); one or more organosilicon compounds (B1) containing basic nitrogen; and one or more oxaldianilides. Moisture-curable crosslinkable composition (I) comprises: at least one silane compound of formula (A-[(C(R 1>) 2) b-SiR a(O(R) 2) 3 - a] x) (A1); and one or more organosilicon compounds (B1) containing basic nitrogen and one or more oxaldianilides of formula (R 3>-NH-C(=O)-C(=O)-NH-R 3>) (C1). A : x-valent polymer radical bonded via nitrogen, phosphorus, oxygen, sulfur, carbon or a carbonyl group; R : monovalent, optionally substituted hydrocarbon radicals; R 1>H or a monovalent, optionally substituted hydrocarbon radical optionally linked to the carbon atom via nitrogen, phosphorus, oxygen, sulfur or a carbonyl group; R 2>H or a monovalent, optionally substituted hydrocarbon radical; R 3>monovalent, optionally substituted phenyl radicals; x : 1-10; a : 0-2; and b : 1-10. An independent claim isincluded for a molding produced by (I).

Description

technical field [0001] The present invention relates to compositions based on organosilicon compounds which are storable in the absence of water and crosslink at room temperature upon addition of water to form elastomers, comprising oxalanilide and a silicon compound with a basic nitrogen, which Preparation method and shaped body obtained therefrom. Background technique [0002] One-component sealing compositions are known which can be stored in the absence of water and harden to elastomers at room temperature when water is added. This product is used in large quantities, for example in the construction industry. The main component of the mixture is a silyl-terminated polymer bearing reactive substituents such as OH groups or hydrolyzable groups such as alkoxy groups. [0003] Especially in transparent compositions it is difficult to produce a colorless product which simultaneously has good adhesion to substrates such as plastic or metal. US-B2-7,211,616 and US-A1-2003 / 01...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/12C08L83/10C08K5/544C08K5/20C08G65/48
CPCC08G65/336C08L33/08C08L71/02C07F7/18C08L83/06C09J183/06
Inventor M·普拉瑟
Owner WACKER CHEM GMBH
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