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US 2020/0354494 A1Published application
Biogenic oligomers as reactive additives for the curing of reactive resins
AssigneeHilti Aktiengesellschaft
InventorsJens Bunzen, Thomas Bürgel, Beate Gnass, Klaus Jaehnichen, Brigitte Voit
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Abstract
A reactive resin includes a vinyl ester resin as a base resin and an oligomeric itaconic acid ester as a reactive diluent.
Claims20
1:
- A reactive resin, comprising:
- i) a base resin comprising at least one vinyl ester resin, and
- ii) at least one itaconic acid ester of formula (I),
- in which
- R represents hydrogen or a C1-C6 alkyl group,
- X represents a C2-C10 alkylene group, and
- n is ≥2.
4 more elements
2:
- The reactive resin according to claim 1, wherein the at least one itaconic acid ester of the formula (I) has a weight-average molar mass Mw of at least 500 g/mol.
3:
- The reactive resin according to claim 1, wherein the at least one itaconic acid ester of the formula (I) is completely obtainable from a renewable raw material.
4:
- The reactive resin according to claim 1, wherein the at least one vinyl ester resin is a vinyl urethane ester resin.
5:
- The reactive resin according to claim 1, further comprising at least one inhibitor.
6:
- The reactive resin according to claim 5, wherein the at least one inhibitor is selected from the group consisting of 2-methoxyphenol, 4-methoxyphenol, 2,6-di-tert-butyl-4-methylphenol, 2,4-di-tert-butylphenol, 2,6-di-tert-butylphenol, 2,4,6-trimethylphenol, 2,4,6-tris(dimethylaminomethyl)phenol, 4,4′-thio-bis(3-methyl-6-tert-butylphenol), 4,4′-isopropylidenediphenol, 6,6′-di-tert-butyl-4,4′-bis (2,6-di-tert-butylphenol), 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, 2,2′-methylene-di-p-cresol, pyrocatechol, 4-tert-butyl pyrocatechol, 4,6-di-tert-butyl pyrocatechol, hydroquinone, 2-methylhydroquinone, 2-tert-butylhydroquinone, 2,5-di-tert-butylhydroquinone, 2,6-di-tert-butylhydroquinone, 2,6-dimethylhydroquinone, 2,3,5-trimethylhydroquinone, benzoquinone, 2,3,5,6-tetrachloro-1,4-benzoquinone, methylbenzoquinone, 2,6-dimethylbenzoquinone, naphthoquinone, and mixtures thereof.
7:
- The reactive resin according to claim 5, comprising:
- i) 50.0 to 95.0 wt. % of the base resin, comprising the at least one vinyl ester resin,
- ii) 5.0 to 40.0 wt. % of the at least one itaconic acid ester of the formula (I), and
- iii) up to 1.0 wt. % of the at least one inhibitor,
- based on a total weight of the reactive resin.
2 more elements
8:
- A reactive resin component comprising:
- the reactive resin according to claim 1, and
- at least one inorganic or organic aggregate.
9:
- The reactive resin component according to claim 8, wherein the at least one inorganic or organic aggregate is selected from the group consisting of fillers, thickeners, thixotropic agents, non-reactive solvents, agents for improving flowability, wetting agents, and mixtures thereof.
10:
- The reactive resin component according to claim 8, comprising:
- 30 to 80 wt. % of the at least one inorganic or organic aggregate, based on a total weight of the reactive resin component.
11:
- A multi-component system, comprising:
- A) the reactive resin component according to claim 8, and
- B) a hardener component.
12:
- The multi-component system according to claim 11, wherein the hardener component comprises:
- a radical initiator as a curing agent, and
- optionally inorganic and/or organic aggregates.
13:
- The multi-component system according to claim 11, wherein a weight ratio of the reactive resin component to the hardener component is in a range of approximately 3:1 to approximately 7:1.
14:
- A method for chemical fastening, comprising:
- fastening with the reactive resin of claim 1.
15:
- The method according to claim 14, wherein the chemical fastening is fastening of an anchor in a borehole.
16:
- The method according to claim 15, wherein the anchor comprises steel or iron.
17:
- The method according to claim 14, wherein the reactive resin further comprises:
- a base resin comprising at least one vinyl ester resin, and
- at least one inhibitor.
18:
- The method according to claim 17, wherein the at least one vinyl ester resin is a vinyl urethane ester resin.
19:
- The method according to claim 17, wherein the at least one inhibitor is selected from the group consisting of 2-methoxyphenol, 4-methoxyphenol, 2,6-di-tert-butyl-4-methylphenol, 2,4-di-tert-butylphenol, 2,6-di-tert-butylphenol, 2,4,6-trimethylphenol, 2,4,6-tris(dimethylaminomethyl)phenol, 4,4′-thio-bis(3-methyl-6-tert-butylphenol), 4,4′-isopropylidenediphenol, 6,6′-di-tert-butyl-4,4′-bis (2,6-di-tert-butylphenol), 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, 2,2′-methylene-di-p-cresol, pyrocatechol, 4-tert-butyl pyrocatechol, 4,6-di-tert-butyl pyrocatechol, hydroquinone, 2-methylhydroquinone, 2-tert-butylhydroquinone, 2,5-di-tert-butylhydroquinone, 2,6-di-tert-butylhydroquinone, 2,6-dimethylhydroquinone, 2,3,5-trimethylhydroquinone, benzoquinone, 2,3,5,6-tetrachloro-1,4-benzoquinone, methylbenzoquinone, 2,6-dimethylbenzoquinone, naphthoquinone, and mixtures thereof.
20:
- The method according to claim 17, wherein the reactive resin comprises:
- i) 50.0 to 95.0 wt. % of the base resin, comprising the at least one vinyl ester resin,
- ii) 5.0 to 40.0 wt. % of the at least one itaconic acid ester of formula (I), and
- iii) up to 1.0 wt. % of the at least one inhibitor,
- based on the total weight of the reactive resin.
2 more elements