Use of salts as accelerators in an epoxy resin compound for chemical fastening

2:

• The method according to claim 1, wherein the epoxy resin compound is a multi-component epoxy resin compound.

3:

• The method according to claim 2, wherein the multi-component epoxy resin compound comprises an epoxy resin component (A) which contains at least one curable epoxy resin, and a curing agent component (B) which contains at least one amine which is reactive to epoxy groups, and
• wherein the epoxy resin component (A) and the curing agent component (B) are separate from one another so as to prevent a reaction.

4:

• The method Use according to claim 3, wherein the multi-component epoxy resin compound is present in cartridges or film pouches which comprise two or more separate chambers in which the epoxy resin component (A) and the curing agent component (B) are separately arranged so as to prevent a reaction.

5:

• The method Use according to claim 1 further comprising:
• chemical fastening with the epoxy resin compound of construction element or anchoring means in a borehole.

6:

• The method according to claim 1 wherein the at least one salt (S) is selected from the group consisting of nitrate (NO3−), iodide (I−), triflate (CF3SO3−) and mixtures thereof.

7:

• The method according to claim 1, where the at least one salt (S) comprises a cation selected from the group consisting of alkali metals, alkaline earth metals, lanthanides, aluminum, ammonium and combinations thereof.

8:

• The method according to claim 3, wherein the at least one amine reactive to epoxy groups is selected from 3-aminomethyl-3,5,5-trimethylcyclohexane (IPDA), 2-methyl-1,5-pentanediamine (DYTEK A), m-xylylenediamine (mXDA), 1,3-bis(aminomethyl)-cyclohexane (1,3-BAC), 4,4′-methylenebis(cyclohexyl-amine) (PACM), 4-methylcyclohexyl-1,3-diamine (mCDA), 1,2-diaminocyclohexane (1,2-BAC) and mixtures thereof.

9:

• The method according to claim 3, wherein the at least one salt (S) is present at least in the curing agent component (B).

10:

• The method according to claim 1, wherein the at least one salt (S) is present in the epoxy resin compound in a proportion of from 0.1 to 4 wt. % based on total weight of the epoxy resin compound.

11:

• The method according to claim 3, wherein the at least one curable epoxy resin is a diglycidyl ether of bisphenol A or bisphenol F or a mixture thereof.

13:

• The method according to claim 12, wherein the multi-component epoxy resin compound is present in cartridges or film pouches which comprise two or more separate chambers in which the epoxy resin component (A) and the curing agent component (B) are separately arranged so as to prevent a reaction.

14:

• The method according to claim 13, the method further comprising:
• discharging out of the separate chambers and mixing in a static mixer or dissolver the epoxy resin component (A) and the curing agent component (B).

15:

• The method according to claim 14, the method further comprising:
• introducing mixed multi-component epoxy resin compound into a borehole.

16:

• The method according to claim 1, the method further comprising:
• chemical fastening with the epoxy resin compound.

17:

• The method according to claim 1, the method further comprising:
• chemical fastening with the epoxy resin compound of an anchor rod, anchor bolt, rod, threaded rod, sleeve, threaded sleeve, reinforcing bar, and/or screw in a borehole.

18:

• A composition, comprising:
• an epoxy resin compound and at least one salt (S) selected from the group consisting of salts of nitric acid, salts of nitrous acid, salts of halogens, salts of trifluoromethanesulfonic acid and combinations thereof