Epoxy-based substance for fixing purposes, the use thereof and the use of specific components

Patent metadata

Field	Value
Publication number	US-2016355437-A1
Application number	US-201615241201-A
Country	US
Kind code	A1
Filing date	Aug 19, 2016
Priority date	Dec 11, 2012
Publication date	Dec 8, 2016
Grant date	—

Abstract

Compositions for a curable substance for fixing purposes, comprising an epoxy component (a), which contains curable epoxides, and a hardener component (b), which comprises a Mannich base formulation, obtainable by reaction of specific amines, and/or mixtures of styrenated phenols with low molecular weight amines, to novel Mannich base formulations or mixtures of styrenated phenols with low molecular weight amines, and to the use of such Mannich base formulations and/or of such mixtures of styrenated phenols with low molecular weight amines, and in each case especially further additional ingredients, especially in hardener components for epoxy resins.

First claim

1 . A method for embedding an anchoring element in mortar in a hole or cavity, the method comprising:
introducing into the hole or crevice a fixing mortar comprising a non-aqueous composition, the non-aqueous composition comprising an epoxy component (a), which contains curable epoxides, and a hardener component (b), which comprises
(i) a Mannich base formulation obtainable by reaction of one or more specific amines with phenols and aldehydes, the specific amines being those of the formula

wherein
“CYC” is a monocyclic saturated ring having from 3 to 12 ring atoms or a condensed dicyclic saturated ring system having from 6 to 12 ring atoms, wherein in each case the ring atoms are selected from 0 to 2 nitrogen atoms, 0 to 1 oxygen atoms and 0 to 1 sulfur atoms and from carbon atoms;
X is CH 2 , NH, O or S, wherein for each group —[X] n —NH 2 one or zero X is NH, O or S, with the proviso that in the case of an X═O or S, in the group —[X] n —NH 2 in question n is at least 2 and the O or S is not bonded directly to a nitrogen atom, and in the case of an X═NH, n is at least 2 and the X═NH is bonded neither directly to a nitrogen ring atom nor to a nitrogen atom present in the group —[X] n —NH 2 in question;
n is from 0 to 5, with the proviso that in at least one of the groups —[X] n —NH 2 , n is from 1 to 5; and
m is a whole positive number greater than or equal to 2, especially 2 to 3;
or salts thereof,

and/or
(ii) mixtures of styrenated phenols with one or more low molecular weight amines, which are di- or poly-amines, or salts thereof; and
introducing an anchoring element into the hole or crevice simultaneously with or subsequent to the introduction of the fixing mortar.

2 . The method according to claim 1 , wherein, in the case of (ii), the low molecular weight amine(s) are those of the formula shown under (i) in claim 1 .

3 . The method according to claim 1 , wherein, in the case of (ii), the low molecular weight amine(s) are xylylenediamines, aliphatic polyamines, oligomeric diamines of the formula H 2 N—(CH 2 ) i —NH—[(CH 2 ) j —NH] k —(CH 2 ) l —NH 2 , wherein l, j and l are each independently of the others from 2 to 4 and k is 0, 1 or 2; cycloaliphatic amines; or amine adducts; or mixtures of two or more thereof.

4 . The method according to claim 1 , wherein, in the case of (ii), the low molecular weight amine(s) are selected from m-xylylenediamine, 1,3-bis(aminomethyl)cyclohexane (BAC), triethylenetetraamine and isophoronediamine, or mixtures of two or more thereof.

5 . The method according to claim 1 , wherein, in the case of (i), the specific amines(s) are selected from 1,3-bis(aminomethyl)cyclohexane (BAC), 4-(2-aminoethyl)piperazine, N,N′-bis(3-amino-n-propyl)piperazine, and mixtures of two or more thereof.

6 . The method according to claim 1 , wherein, in the case of (i), for the Mannich base preparation there are used as phenols styrenated phenol or phenol and as aldehydes formaldehyde or a precursor thereof.

7 . The method according to claim 6 , wherein the content of free phenol is less than 1% by weight of the Mannich base formulation.

8 . The method according to claim 1 , wherein the ratio by weight of components (a) to (b) is 10 to 1 or less.

9 . The method according to claim 1 , wherein the ratio by weight of components (a) to (b) is 5 to 1 or less.

10 . The method according to claim 1 , wherein in the case of (i), the proportion of Mannich base, based on the total weight of the component (b), has a proportion of from 10 to 100% by weight.

11 . The method according to claim 1 , wherein in the case of (i), the proportion of Mannich base, based on the total weight of the component (b), has a proportion of from 30 to 75% by weight.

12 . The method according to claim 1 , wherein in the case of (ii), the proportion of the mixture of styrenated phenols and low molecular weight amines, based on the total weight of the component (b), has a proportion of from 10 to 100% by weight.

13 . The method according to claim 1 , wherein in the case of (ii), the proportion of the mixture of styrenated phenols and low molecular weight amines, based on the total weight of the component (b), has a proportion of from 30 to 75% by weight.

14 . A method of making a composite, the method comprising:
combining a fiber reinforcement material with a non-aqueous composition, the non-aqueous composition comprising an epoxy component (a), which contains curable epoxides, and a hardener component (b), which comprises
(i) a Mannich base formulation obtainable by reaction of one or more specific amines with phenols and aldehydes, the specific amines being those of the formula

wherein
“CYC” is a monocyclic saturated ring having from 3 to 12 ring atoms or a condensed dicyclic saturated ring system having from 6 to 12 ring atoms, wherein in each case the ring atoms are selected from 0 to 2 nitrogen atoms, 0 to 1 oxygen atoms and 0 to 1 sulfur atoms and from carbon atoms;
X is CH 2 , NH, O or S, wherein for each group —[X] n —NH 2 one or zero X is NH, O or S, with the proviso that in the case of an X═O or S, in the group —[X] n —NH 2 in question n is at least 2 and the O or S is not bonded directly to a nitrogen atom, and in the case of an X═NH, n is at least 2 and the X═NH is bonded neither directly to a nitrogen ring atom nor to a nitrogen atom present in the group —[X] n —NH 2 in question;
n is from 0 to 5, with the proviso that in at least one of the groups —[X] n —NH 2 , n is from 1 to 5; and
m is a whole positive number greater than or equal to 2, especially 2 to 3;
or salts thereof,

and/or
(ii) mixtures of styrenated phenols with one or more low molecular weight amines, which are di- or poly-amines, or salts thereof; and
curing the non-aqueous composition to form a fiber reinforced composite.

15 . The method of claim 14 , wherein the fiber reinforcement material is selected from among a plurality of fibers, a non-crimp fabric, and a woven fabric.

16 . The method according to claim 14 , wherein, in the case of (ii), the low molecular weight amine(s) are those of the formula shown under (i) in claim 1 .

17 . The method according to claim 14 , wherein, in the case of (ii), the low molecular weight amine(s) are xylylenediamines, aliphatic polyamines, oligomeric diamines of the formula H 2 N—(CH 2 ) i —NH—[(CH 2 ) j —NH] k —(CH 2 ) l 'NH 2 , wherein l, j and l are each independently of the others from 2 to 4 and k is 0, 1 or 2; cycloaliphatic amines;
or amine adducts; or mixtures of two or more thereof.

18 . The method according to claim 14 , wherein, in the case of (ii), the low molecular weight amine(s) are selected from m-xylylenediamine, 1,3-bis(aminomethyl)cyclohexane (BAC), triethylenetetraamine and isophoronediamine, or mixtures of two or more thereof.

19 . The method according to claim 14 , wherein, in the case of (i), the specific amines(s) are selected from 1,3-bis(aminomethyl)cyclohexane (BAC), 4-(2-aminoethyl)piperazine, N,N′-bis(3-amino-n-propyl)piperazine, and mixtures of two or more thereof.

20 . The method according to claim 14 , wherein, in the case of (i), for the Mannich base preparation there are used as phenols styrenated phenol or phenol and as aldehydes formaldehyde or a precursor thereof.

Assignees

• Fischerwerke Gmbh & Co Kg

Inventors

• Grun Jurgen
• Vogel Martin
• Schlenk Christian
• Weinelt Christian

Classifications

• C08G59/623 Primary

  Aminophenols · CPC title

• C08J5/04

  Reinforcing macromolecular compounds with loose or coherent fibrous material · CPC title

• C08G59/621

  Phenols · CPC title

• C04B24/281 Primary

  Polyepoxides · CPC title

• C08J2363/00

  Characterised by the use of epoxy resins; Derivatives of epoxy resins · CPC title