Isosorbide derivatives as reactive additives in reactive resins and chemical dowels

Abstract

A reactive resin includes a vinyl ester resin based on renewable raw materials, in particular a dianhydrohexitol-based vinyl ester resin as the base resin. A reactive resin component containing this reactive resin is useful for chemical fastening.

Claims

1. A reactive resin, comprising: at least one dianhydrohexitol compound of formula (I), ##STR00010## in which R represents a hydrogen atom or a methyl group, X represents a dianhydrohexitol, L represents, independently of one another, a bridging C.sub.1-C.sub.8 alkylene group, which may be unsubstituted or hydroxy-substituted, and n may be 1 to 5.

2. The reactive resin according to claim 1, wherein X is selected from the group consisting of isosorbide, isomannide, and isoidide.

3. The reactive according to claim 1, wherein X represents isosorbide.

4. The reactive resin according to claim 1, wherein the at least one dianhydrohexitol compound is an isosorbide compound of formula (Ib), ##STR00011## in which R represents a hydrogen atom or a methyl group.

5. The reactive resin according to claim 1, wherein L represents, independently of one another, a bridging C.sub.3-C.sub.5 alkylene group which is hydroxy-substituted.

6. The reactive resin according to claim 1, wherein L represents ##STR00012##

7. The reactive resin according to claim 1, comprising: up to 70 wt. % of the at least one dianhydrohexitol compound of formula (I), based on a total weight of the reactive resin.

8. A method for chemical fastening, comprising: applying the reactive resin according to claim 1 to an anchoring agent in a borehole.

9. A reactive resin cotrrponent, comprising: the reactive resin according to claim 1; and an inorganic and/or organic aggregate.

10. The reactive resin component according to claim 9, comprising the inorganic aggregate,. wherein the inorganic aggregate is selected from the group consisting of quartz, glass, corundum, porcelain, earthenware, light spar, baryte, gypsum, talc, chalk, and mixtures thereof, and wherein the inorganic aggregate is present in form of sand, flour, or molded bodies.

11. The reactive resin component according to claim 9, wherein the reactive resin is contained in an amount of from 10 to 60 wt. %, based on a total weight of the reactive resin component.

12. A two-component system, comprising: the reactive resin component according to claim 9; and a hardener component.

13. The two-component system according to claim 12, wherein the hardener component comprises: a radical initiator as a curing agent.

14. A method for chemical fastening, comprising: applying a two-component system according to claim 12 to an anchoring agent in a borehole.

15. The method according to claim 8, wherein the anchoring agent is made of steel or iron.

16. The method according to claim 8, wherein the borehole is in a mineral or metal substrate.

17. The method according to claim 16, wherein the mineral or metal substrate is selected from the group consisting of concrete, aerated concrete, brickwork, limestone, sandstone, natural stone, glass, steel, and combinations thereof.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0127] FIG. 1 is a schematic representation of the evaluation of temperature-time curves

[0128] FIG. 2 shows the temperature-time curves measured in Example B