Mixture of radically curable compounds and use thereof

Patent metadata

Field	Value
Publication number	US-11655320-B2
Application number	US-202016938536-A
Country	US
Kind code	B2
Filing date	Jul 24, 2020
Priority date	Jul 3, 2017
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

A mixture includes at least two radically curable compounds as a backbone resin, and is useful in reactive resins. In particular, the mixture reduces the viscosity of such reactive resin-containing mixtures and thus the dispensing forces required for ejecting the reactive resin components produced therefrom. The mixture also increases the performance of the reactive resins containing such mixtures and of the reactive resin components produced therefrom. Further, said reactive resins and the reactive resin components thereof are useful for construction purposes, in particular for chemical fastening.

First claim

The invention claimed is:

1. A reactive resin system, comprising:
a reactive resin component (A), comprising
at least two radically curable compounds each having a structure of at least one of compounds of the general formula (I), compounds of the general formula (V) and compounds of the general formula (VII)

in which
each R 1 is independently a branched or linear aliphatic C 1 -C 15 alkylene group,
A is a linear or branched aliphatic C 3 -C 10 alkylene group,
B is a linear, branched or cyclic aliphatic hydrocarbon group or an aromatic hydrocarbon group,
X is a divalent linear, branched or cyclic aliphatic or aromatic hydrocarbon group, or a group Z of the formula

in which R 2 is a divalent branched or linear aliphatic C 1 -C 6 alkylene group,
Y is an aromatic hydrocarbon group,
n is a whole number greater than or equal to 0,
m is a whole number greater than or equal to 3, and
p is a whole number greater than or equal to 2,

an inhibitor,
an accelerator, and
optionally a reactive diluent, and
a hardener component (B) comprising an initiator,
wherein at least one of the components (A) or (B) contains an inorganic aggregate having a particle size minimum diameter of about 50 nm and an amount of 30-90°,(0 wt. %.

2. The reactive resin system according to claim 1 , wherein X is a divalent aromatic C 6 -C 20 hydrocarbon group or a divalent linear, branched or cyclic aliphatic hydrocarbon group.

3. The reactive resin system according to claim 1 , wherein X is a divalent C 6 -C 20 aromatic hydrocarbon group containing one or two benzene rings which are optionally alkyl substituted.

4. The reactive resin system according to claim 1 , wherein B is an aliphatic hydrocarbon group which is optionally hydroxy and/or alkyl substituted.

5. The reactive resin system according to claim 4 , wherein the aliphatic hydrocarbon group B is a linear or branched C 2 -C 12 alkylene group.

6. The reactive resin system according to claim 1 , wherein B is an aromatic hydrocarbon group.

7. The reactive resin system according to claim 1 , wherein p is 2 or 3.

8. The reactive resin system according to claim 1 , wherein Y is a C 6 -C 20 aromatic hydrocarbon group.

9. The reactive resin system according to claim 1 , wherein Y contains one or two benzene rings, which are optionally alkyl substituted.

10. The reactive resin system according to claim 1 , wherein A is a trivalent or higher-valency-group, as obtained by removing the hydroxyl groups from a trifunctional or higher-function alcohol.

11. The reactive resin system according to claim 1 , wherein n=0, 1, or 2 and m 3, 4, or 5.

12. The reactive resin system according to claim 1 , wherein n=0 or 1 and m=3, 4, or 5, where n+m=4 or 5.

13. The reactive resin system according to claim 1 , wherein R 1 is a divalent linear or branched C 1 -C 6 alkylene group.

14. A method of preparing the reactive resin system according to claim 1 for construction purposes, the method comprising:
combining the reactive resin component (A) and the hardener component (B).

15. A method for chemical fastening of an anchor in a borehole for construction purposes, the method comprising:
chemically fastening an anchor in a borehole with the reactive resin system according to claim 1 .

Assignees

• Hilti Ag

Inventors

• Nickerl Georg
• Bunzen Jens
• Gnass Beate
• Gaefke Gerald
• Bürgel Thomas
• Schaefers Klaus

Classifications

• C08G18/7642

  containing at least two isocyanate or isothiocyanate groups linked to the aromatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate groups, e.g. xylylene diisocyanate or homologues substituted on the aromatic ring · CPC title

• E04B1/4157

  Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head · CPC title

• C08G18/3206

  aliphatic · CPC title

• C08G18/10

  Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step · CPC title

• C08G18/246

  containing also tin-carbon bonds · CPC title