# US 2023/0053898 A1 · Use of reaction resin mixtures with predefined polarity for setting the robustness of a mortar composition and method for setting the robustness of a mortar composition

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- Number: US 2023/0053898 A1
- Document ID: US20230053898A1
- Status: Published application
- Kind: A1
- Application number: 17/758,598
- Filed: 2021-01-12
- Published: 2023-02-23
- Earliest claimed: 2020-01-14
- Assignees: Hilti Aktiengesellschaft
- Applicants: Hilti Aktiengesellschaft
- Inventors: Memet-Emin KUMRU
- Web page: https://patentgrep.com/patent/US20230053898A1

## CPC

- C04B 26/06: Acrylates
- C04B 26/16: Polyurethanes
- C04B 28/06: Aluminous cements (monolithic refractories or refractory mortars C04B35/66)
- C08F 220/343: {in the form of urethane links}
- C04B 2111/00715: {for fixing bolts or the like}
- C08F 2800/20: as weight or mass percentages
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS

## Abstract

A non-polar reaction resin mixture can be used to improve the adhesion of a mortar composition based on radically polymerizable compounds, in particular based on urethane (meth)acrylates, on the surface of semi-cleaned and/or damp boreholes in mineral substrates. The use of a non-polar reaction resin mixture in the corresponding mortar composition reduced the sensitivity thereof to dampness and inadequate cleaning conditions, so that mortar compositions are obtained overall which are characterized by improved robustness against external influences.

## Claims

### Claim 1

A method. comprising:
mixing a non-polar reaction resin mixture into a mortar composition based on radically polvmerizable compounds,
wherein the non-polar reaction resin mixture contains
a reaction resin, and
one or more reactive diluents.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the mortar composition based on radically polymerizable compounds is a multi-component reaction resin system.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the non-polar reaction resin mixture has a polarity <7 mN/m.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the reaction resin comprises at least one compound selected from the group consisting of a compound based on urethane (tneth)acrylate, a compound based on epoxy (meth)acrylate, a compound based on a (tneth)acrylate of an alkoxylated bisphenol, and a compound based on further ethylenically unsaturated compounds.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the one or more reactive diluents has little or no dipole moment.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the one or more reactive diluents is selected from the group consisting of ethyl methacrylate (EMA), 3,3,5-trimethylcyclohexyl methacrylate (TMCHMA), isobornyl methacrylate (IBOMA), isobutyl methacrylate (i-BMA), tetrahydrofurfuryl methacrylate (THFMA), 2-ethylhexyl methacrylate (2-HEMA), cyclohexyl methacrylate (c-HMA), allyl methacrylate (AMA), benzyl methacrylate (BNMA), isodecyl methacrylate (IDMA), 1,12-dodecanediol dimethacrylate (1,12-DDDDMA), 1,6-hexanediol dimethacrylate (1,6-HDDMA), 1,4-butanediol dimethacrylate (1,4-BDDMA), 1,3-butanediol dimethacrylate (1,3-BDDMA), ethylene glycol dimethacrylate (EGDMA), and glycerol dimethacrylate.

### Claim 7

A resin component based on radically polymerizable compounds for a multi-component reaction resin system, comprising:
at least one non-polar reaction resin mixture containing at least one reaction resin and one or more reactive diluents.

### Claim 8 (depends on 7)

A multi-component reaction resin system, comprising:
the resin component according to claim 7, and
a hardener component arranged separately to inhibit a reaction.

### Claim 9 (depends on 8)

A cartridge or film pouch containing the multi-component reaction resin system according to claim 8, which comprises two or more separate chambers in which the resin component and the hardener component are arranged.

### Claim 10

A method for improving adhesion of a mortar composition based on radically polytnerizable compounds on a surface of a semi-cleaned and/or damp borehole in a mineral substrate, the method comprising:
providing a reaction resin,
mixing the reaction resin with one or more reactive diluents to produce a non-polar reaction resin mixture, and
using the non-polar reaction resin mixture thus produced in a resin component of a multi-component reaction resin system.

### Claim 11 (depends on 2)

The method according to claim 2, wherein the multi-component reaction resin system is a two-component reaction resin system.