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Impact-modified reaction resin

Inactive Publication Date: 2013-10-31
EVONIK ROEHM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a new type of reactive resin that can be used for different applications. This resin has a longer lifetime than previous versions, and also has improved mechanical properties. Specifically, it is harder and more flexible, which reduces crack propagation and makes it stronger and more durable. Additionally, the new formulation for marking trafficway surfaces lasts longer than previous versions.

Problems solved by technology

A disadvantage of the latter is that they are complicated to produce and to apply.
There are also restrictions on the freedom available in respect of the design of the marking for desirable long life, e.g. use of glass beads.
Their use has the great disadvantage of an additional step in that the product first has to be melted, for example at 200° C., before it can be applied.
Firstly, this is potentially dangerous because of the high temperature, and secondly thermoplastic systems per se have relatively high susceptibility to abrasion, and relatively low thermal stability.
An established method is incorporation by mixing before further operations, but a factor requiring attention here is that only a limited amount of open time, e.g. 2 or 40 min, remains for the application process once mixing to incorporate the hardener component has been carried out.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0109]0.05 part of topanol-O, 15 parts of Degacryl M339 (Evonik Röhm GmbH), 10 parts of core-shell-shell particles, and 0.5 part of paraffin were intimately mixed with 63 parts of methyl methacrylate and 5 parts of triethylene glycol dimethacrylate and heated, with vigorous stirring, to 63° C. until all of the polymer constituents had been dissolved or dispersed. For curing, 1 part of benzoyl peroxide (50% by weight formulation in dioctyl phthalate) and 1.9 parts of N,N-diisopropoxytoluidine were added and incorporated by stirring for 1 minute at room temperature (21° C.). For hardening, the composition was poured onto a metal sheet, and test specimens were produced in accordance with DIN 50125.

[0110]Pot life: 11 min; curing time: 22 min; flow time (8 mm): 74 sec.

example 2

[0111]0.05 part of topanol-O, 13 parts of Degacryl M339, 9 parts of core-shell-shell particles, and 0.5 part of paraffin were intimately mixed with 63 parts of methyl methacrylate and 5 parts of butyl diglycol dimethacrylate and heated, with vigorous stirring, to 63° C. until all of the polymer constituents had been dissolved or dispersed. For curing, 1 part of benzoyl peroxide (50% by weight formulation in dioctyl phthalate) and 2 parts of N,N-diisopropoxytoluidine were added and incorporated by stirring for 1 minute at room temperature (21° C.).

[0112]For hardening, the composition was poured onto a metal sheet, and test specimens were produced in accordance with DIN 50125.

[0113]Pot life: 14 min; curing time: 30 min; flow time (4 mm): 244 sec.

example 3

[0114]0.05 part of topanol-O, 25 parts of Degalan LP 66 / 02, and 0.5 part of paraffin were intimately mixed with 63 parts of methyl methacrylate and 5 parts of triethylene glycol dimethacrylate and heated, with vigorous stirring, to 63° C. until all of the polymer constituents had been dissolved. For curing, 1 part of benzoyl peroxide (50% by weight formulation in dioctyl phthalate) and 1.9 parts of N,N-diisopropoxytoluidine were added and incorporated by stirring for 1 minute at room temperature (21° C.). For hardening, the composition was poured onto a metal sheet, and test specimens were produced in accordance with DIN 50125.

[0115]Pot life: 13 min; curing time: 29 min; flow time (4 mm): 78 sec.

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Abstract

The present invention comprises a novel formulation for marking trafficways, for example roads, which when compared with the prior art have improved mechanical properties and improved heat resistance during curing. The invention also relates to improved reactive resins for other applications than roadmarkings. The present invention in particular relates to reactive resins which comprise core-shell particles.

Description

FIELD OF THE INVENTION[0001]The present invention comprises a novel formulation for marking or coating floor surfaces or trafficways, for example roads, which when compared with the prior art have improved mechanical properties and improved heat resistance during curing. The invention also relates to improved reactive resins for other applications than roadmarkings. The present invention in particular relates to reactive resins which comprise core-shell particles.[0002]Modern trafficway markings are subject to a large number of requirements. Firstly, these systems are expected to be easy to apply on the road surface and at the same time to provide long shelf life, and also to provide a marking with long lifetime. Other important factors are capability for rapid operations and in particular capability for operations over the widest possible temperature range. Many reactive roadmarking and floorcoating systems of the prior art cure in an excessively uncontrolled manner at temperatures...

Claims

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Application Information

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IPC IPC(8): E01F9/04
CPCE01F9/041C08F220/10C08F265/06C08F285/00E01F9/506C08L33/04C08J5/18
Inventor HILF, STEFANPOPPE, DIRKKLEIN, ALEXANDERHEEB, HEIKESTEFFAN, ARMIN
Owner EVONIK ROEHM GMBH
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