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Two-component mortar composition suitable for construction purposes, its use and cured structures obtained therefrom

A composition, two-component technology, applied in the direction of foundation structure engineering, sheet pile wall, construction, etc., can solve the problems of weak system, high sensitivity to changes in reactive diluent content, etc., achieve long gel time, shrinkage Low rate, fast curing effect

Inactive Publication Date: 2015-11-25
HILTI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Another disadvantage is that changing the amount of reactive diluent by only a small amount has a large impact on the amount of mercaptan required, making the system less robust, i.e. highly sensitive to changes in reactive diluent content

Method used

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  • Two-component mortar composition suitable for construction purposes, its use and cured structures obtained therefrom
  • Two-component mortar composition suitable for construction purposes, its use and cured structures obtained therefrom
  • Two-component mortar composition suitable for construction purposes, its use and cured structures obtained therefrom

Examples

Experimental program
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Embodiment Construction

[0050] Example / Comparative example

[0051] A) Synthesis of resins containing norbornene groups

[0052] A 2 L reactor equipped with a mechanical stirrer and Dean Stark apparatus was charged with 402 g trimethylolpropane, 147 g maleic anhydride and 1.1 g dibutylhydroquinone. After heating the mixture to 100° C. during 2 h, 218 g of toluene, 10.9 g of p-toluenesulfonic acid and 541 g of crotonic acid were added. The reaction mixture was heated to reflux and water was removed azeotropically over 28 hours. A further 7.7 g of trimethylolpropane oxetane were added and the mixture was stirred at 100°C for a further 1 hour. Toluene and excess crotonic acid were then distilled off, resulting in the formation of a yellowish resin. The resin was heated to 165°C and 550 g of DCPD were slowly added over a period of 8 hours while maintaining the reaction temperature between 165 and 180°C. After the addition was complete, the reaction mixture was kept at 170° C. for more than 2 hours, t...

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Abstract

The present invention relates to a two-component mortar composition suitable for construction purposes, comprising a two-component mortar composition suitable for construction purposes comprising a resin component A, a resin curable with a peroxide containing at least one norbornene group and at least one methacrylate containing compound; and a hardener component B comprising a peroxide and at least one thiol; wherein at least one of the resin component A and the hardener component B contains at least one inorganic filler; and wherein the resin component A and the hardener component B are spatially separated from one another to inhibit any reaction before mixing of said components; the use of said mortar composition for fastening of threaded anchor rods, reinforcing irons, threaded sleeves and screws in boreholes of any substrate and for the manufacture of cured structural objects; and relates also to the cured structural objects obtained thereby.

Description

technical field [0001] The present invention relates to the use of a two-component mortar composition for construction purposes, preferably for fastening threaded bolts, reinforcing irons, threaded sleeves and screws in boreholes in any kind of substrate, And a cured structure obtained by curing said mortar composition. [0002] As used herein, "suitable for structural purposes" means that the mortar composition when cured results in the formation of a structure. By this it is meant that a structure is considered to have a thickness of at least 0.5 mm and suitable mechanical properties. Background technique [0003] To define the technical term used herein, a mortar composition comprises a curable resin, a filler and further additives which adjust the reactivity and rheology of the mortar. Usually, it is applied as a two-component system consisting of a filler resin in the first component and a hardener in the second component. Use of the two-component mortar composition ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/04C08F283/01E02D5/74
CPCC08G75/045C08F222/1006C08F232/08C08F222/103
Inventor A·普法伊尔
Owner HILTI AG
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