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

Patent metadata

Field	Value
Publication number	US-2016159689-A1
Application number	US-201615003105-A
Country	US
Kind code	A1
Filing date	Jan 21, 2016
Priority date	Jul 24, 2013
Publication date	Jun 9, 2016
Grant date	—

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

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

in which
R 1 represents a straight-chained or branched, optionally substituted C 1 -C 6 -alkyl group, preferably C 1 -C 2 -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 (Ill)

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.

2 . A resin mixture of claim 1 wherein the at least one reactive diluent is included in an amount of from 1 to 15% by weight and the at least one polymerization inhibitor in an amount of from 0.005 to 2% by weight.

3 . A 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.

4 . A 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.

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

6 . A resin mixture of claim 1 further comprising at least one accelerant.

7 . A resin mixture of claim 1 further comprising additional reactive diluents and/or polymerization inhibitors.

8 . A resin mixture of claim 1 wherein the viscosity of the resin mixture ranges from 200 to 800 mPa·s.

9 . A reaction resin mortar comprising a resin mixture of claim 1 and inorganic and/or organic aggregates.

10 . A reaction resin mortar of claim 9 , 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 or combinations thereof.

11 . A reaction resin mortar of claim 9 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 derivatives, Neuburg siliceous earth, xanthan gum and mixtures thereof.

12 . A two-component or multi-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 inorganic and/or organic aggregates.

13 . A two-component or multi-component mortar system of claim 12 wherein the curing agent represents an inorganic or organic peroxide.

14 . A two-component or multi-component mortar system of claim 12 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.

15 . A two-component or multi-component mortar system of claim 14 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.

16 . The use of a reaction resin mortar for construction purposes comprising:
providing a reaction resin mortar comprising
inorganic and/or organic aggregates and
a resin mixture comprising:
at least one compound that can be radically polymerized,
at least one polymerization inhibitor, which is selected from stable N-oxyl-radicals or 4-hydroxy-3,5-di-tert-butyl toluene, and
at least one reactive diluent, which is selected from 1,3-dicarbonyl compounds with the general formula (I)

in which
R 1 represents a straight-chained or branched, perhaps substituted C 1 -C 6 -alkyl group, preferably C 1 -C 2 -alkyl group;
R 3 represents hydrogen or a straight-chained or branched, perhaps 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, perhaps substituted C 1 -C 6 -alkyl group or a C 1 -C 6 -alkoxy group, or together with R 3 forms a potentially substituted five or six-link aliphatic ring, which perhaps includes 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 represent the same substances 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 applying the reaction resin mortar to a first substrate, and applying a second substrate to the reaction resin mortar.

17 . The use according to claim 16 for the chemical fastening of fastening and/or anchoring means in boreholes in mineral undergrounds.

Assignees

• Hilti Ag

Inventors

• Burgel Thomas
• Monch Monika

Classifications

• C04B2111/00715

  for fixing bolts or the like · CPC title

• C04B26/06

  Acrylates · CPC title

• C04B24/008 Primary

  Aldehydes, ketones · CPC title

• E21B33/13

  Methods or devices for cementing, for plugging holes, crevices or the like · CPC title

• E21D20/02

  with provisions for grouting · CPC title