Resin mixture, reaction resin—mortar, multi-component mortar system, and their application

Patent metadata

Field	Value
Publication number	US-10239787-B2
Application number	US-201615003105-A
Country	US
Kind code	B2
Filing date	Jan 21, 2016
Priority date	Jul 24, 2013
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A resin mixture is described, comprising at least one compound that can be radically polymerized, at least one reactive diluent selected from 1,3-dicarbonyl compounds, and at least one polymerization inhibitor, selected from stable N-oxyl-radicals or 4-hydroxy-3,5-di-tert-butyl toluene, with the molar ratio of at least one 1,3-dicarbonyl compound and the polymerization inhibitor ranging from 30:1 to 150:1, a reaction resin mortar comprising said resin mixture, a two-component or multi-component system, as well as the use for construction purposes, particularly for the chemical fastening in mineral undergrounds.

First claim

The invention claimed is:

1. A resin mixture, comprising:
at least one compound that can be radically polymerized,
at least one first polymerization inhibitor, which is selected from the group consisting of stable N-oxyl-radicals and 4-hydroxy-3,5-di-tert-butyl toluene, and
at least one first reactive diluent, which is selected from the group consisting of 1,3-dicarbonyl compounds with the formula (I)

in which
R 1 represents a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group;
R 3 represents hydrogen or a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group, a C 1 -C 6 -alkoxy group, or a methacryloyloxy group with the formula (II)

in which X represents a methylene glycol, ethylene glycol, or propylene glycol group, and n an integer with a value from 1 up to including 6,
R 2 represents hydrogen, a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group or a C 1 -C 6 -alkoxy group, or together with R 3 forms an optionally substituted five or six-membered aliphatic ring, which optionally comprises heteroatoms in or at the ring;
or 1,3-dicarbonyl compounds with the general formula (III)

in which
R 4 represents a bivalent or polyvalent alcohol,
X represents an integer between 1 and 6, and
R 1 and R 2 are the same as defined above,
wherein the ratio of at least one 1,3-dicarbonyl compound and the polymerization inhibitor ranges from 30:1 to 150:1,
wherein the reactive diluent is included in an amount of from 1 to 15% by weight of the resin mixture and the at least one first polymerization inhibitor is included in an amount of from 0.005 to 2% by weight of the resin mixture, and
wherein an Mn metal salt is excluded from the resin mixture, and
wherein the viscosity of the resin mixture ranges from 200 to 800 mPa·s.

2. The resin mixture of claim 1 , wherein the at least one reactive diluent is selected from the group consisting of acetyl acetone, 2-(aceto-acetoxy)ethyl methacrylate, tri-aceto-acetato-trimethylol-propane, benzyl-aceto-acetate, α-acetyl-γ-butyrol-actone, tert-butyl aceto-acetate, ethyl aceto-acetate and mixtures thereof.

3. The resin mixture of claim 1 , wherein the polymerization inhibitor is selected from the group consisting piperidinyl-N-oxyl-tetrahydropyrrol-N-oxyl, indolin-N-oxyl, β-phosphorylated N-oxyl-radicals, 4-hydroxy-3,5-di-tert-butyl toluene and mixtures thereof.

4. The resin mixture of claim 1 , wherein the compound that can be radically polymerized is selected from the group consisting of an unsaturated polyester resin, a vinyl ester resin, a urethane(meth)acrylate resin, an epoxy(meth)acrylate resin and mixtures thereof.

5. The resin mixture of claim 1 , further comprising at least one accelerant.

6. The resin mixture of claim 1 , further comprising a second reactive diluent and/or a second polymerization inhibitor.

7. A reaction resin mortar, comprising:
a resin mixture comprising:
at least one compound that can be radically polymerized,
at least one first polymerization inhibitor, which is selected from the group consisting of stable N-oxyl-radicals and 4-hydroxy-3,5-di-tert-butyl toluene, and
at least one first reactive diluent, which is selected from the group consisting of 1,3-dicarbonyl compounds with the formula (I)

in which
R 1 represents a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group;
R 3 represents hydrogen or a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group, a C 1 -C 6 -alkoxy group, or a methacryloyloxy group with the formula (II)

in which X represents a methylene glycol, ethylene glycol, or propylene glycol group, and n an integer with a value from 1 up to including 6,
R 2 represents hydrogen, a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group or a C 1 -C 6 -alkoxy group, or together with R 3 forms an optionally substituted five or six-membered aliphatic ring, which optionally comprises heteroatoms in or at the ring;
or 1,3-dicarbonyl compounds with the general formula (III)

in which
R 4 represents a bivalent or polyvalent alcohol,
X represents an integer between 1 and 6, and
R 1 and R 2 are the same as defined above,
wherein the ratio of at least one 1,3-dicarbonyl compound and the polymerization inhibitor ranges from 30:1 to 150:1,
wherein the reactive diluent is included in an amount of from 1 to 15% by weight of the resin mixture and the at least one first polymerization inhibitor is included in an amount of from 0.005 to 2% by weight of the resin mixture, and
wherein an Mn metal salt is excluded from the resin mixture, and
wherein the viscosity of the resin mixture ranges from 200 to 800 mPa·s, and
an inorganic and/or organic aggregate.

8. The reaction resin mortar of claim 7 , comprising an inorganic filler as an aggregate, which is selected from the group consisting of quartz, sand, pyrogenic silicic acid, corundum, chalk, talcum, ceramic, clay, glass, cement, light spar, barite and mixtures thereof in a suitable distribution of particle sizes.

9. The reaction resin mortar of claim 7 , comprising a thickening agent as the aggregate, which is selected from the group consisting of pyrogenic silicic acids, sheet silicates, acrylate or polyurethane thickening agents, castor oil compounds, Neuburg siliceous earth, xanthan gum and mixtures thereof.

10. A two-component or hi-component mortar system, comprising:
a reaction resin mortar of claim 9 and separated therefrom, in a reaction inhibiting fashion,
a hardener, comprising a curing agent and an inorganic and/or organic aggregate.

11. The two-component or multi-component mortar system of claim 10 , wherein the curing agent is an inorganic or organic peroxide.

12. The two-component or multi-component mortar system of claim 10 , wherein the accelerant is included in an amount of from 0.1 to 1.5% by weight, the inhibitors in an amount of from 0.003 to 0.35% by weight, and the curing agent in an amount of from 0.1 to 3% by weight, each in reference to the total weight of the two-component or multi-component mortar system.

13. The two-component or multi-component mortar system of claim 10 , wherein the accelerant is included in an amount of from 0.1 to 0.5% by weight, the inhibitor in an amount of from 0.003 to 0.07% by weight, and the curing agent in an amount of from 0.1 to 0.35% by weight, each in reference to the total weight of the two-component or multi-component system.

14. A method of constructing an article, comprising:
applying the reaction resin mortar of claim 7 comprising
inorganic and/or organic aggregates and
a resin mixture comprising:
at least one compound that can be radically polymerized,
at least one first polymerization inhibitor in an amount of from 0.005 to 2% by weight of th

Assignees

• Hilti Ag

Inventors

• Burgel Thomas
• Monch Monika

Classifications

• C04B14/066

  Precipitated or pyrogenic silica · CPC title

• C04B14/10

  Clay {(sepiolite C04B14/042; grog C04B18/025)} · CPC title

• C04B2103/44

  Thickening, gelling or viscosity increasing agents · CPC title

• C04B14/06

  Quartz; Sand · CPC title

• C04B40/065

  Two or more component mortars · CPC title