Two-component composition

一种组合物、聚合物的技术，应用在粘合剂类型、聚脲/聚氨酯粘合剂、环氧树脂胶等方向，能够解决基材变色、物料变黄、难胺气味等问题

Active Publication Date: 2017-08-29
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the Mannich base imparts a pronounced unpleasant amine odor to the material and causes the material to turn yellow over time
Since the Mannich base is not incorporated into the polymer upon curing, undesired migration effects and substrate discoloration may also occur

Method used

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  • Two-component composition
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Examples

Experimental program
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Effect test

Embodiment 1 to 36

[0272] For each example, a centrifugal mixer (SpeedMixer TM DAC 150, FlackTek Inc.) was mixed with the ingredients specified in Tables 1 to 7 in the amount (parts by weight) of the specified component-1, and stored with moisture excluded.

[0273] Similarly, process and save the components of component-2 specified in Tables 1 to 7.

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Abstract

The invention relates to a two-component composition, containing at least one silane-group-containing polymer that is liquid at room temperature, at least one epoxide liquid resin, at least one polyetheramine, and at least one aminosilane or mercaptosilane. The composition has low odor, cures quickly and without blistering at room temperature, and, when cured, forms a tough elastic material of high strength, high adhesive force, and good thermal resistance that has no tendency toward yellowing or substrate discoloration. The composition is excellently suitable as a tough elastic adhesive for structural adhesive joints in the field of construction and in industrial production.

Description

Technical field [0001] The present invention relates to a two-component composition curable at room temperature based on a combination of a silane group-containing polymer and an epoxy resin, and its use in particular as a viscoelastic adhesive. Background technique [0002] As adhesives for structural bonding, two-component polyurethane systems are known. The two-component polyurethane system cures quickly and forms a viscoelastic material with high strength, but in some cases contains isocyanates that are harmful to health and may form bubbles during curing. [0003] Also known are two-component epoxy resin adhesives. The two-component epoxy resin adhesive achieves extremely high strength, but is not viscoelastic but brittle and hardly stretchable, so it is not suitable for many structural bonding applications. [0004] Also known are curable materials based on silane-functional polymers. The curable material is usually formulated in a one-component form and crosslinked by react...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/71C08G18/75C08G18/10C08G18/28C08L63/00C09D175/08C09J175/08C09J183/12
CPCC08G18/10C08G18/4866C08G18/718C08G18/755C09D175/08C09J175/08C09J183/12C08G18/289C08L63/00C08L71/02C08G77/458C08G77/46C08G2190/00C08K5/5415C08K5/548C08L75/08C08L2205/03C09J163/00
Inventor U·布尔克哈德特S·科尔西U·斯塔德尔曼
Owner SIKA TECH AG
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