Polymerizable compositions and the use of arylamines as hardening accelerators for these compositions
AssigneeBayer Aktiengesellschaft
InventorsHelmut-Martin Meier, Rolf Dhein, Jens Winkel, Gerhard Klein, Werner Kloker
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Abstract
The invention relates to the use of novel N,N-disubstituted arylamines containing polymerizable groups as hardening accelerators for polymerizable compositions based on unsaturated polyester resins, in particular for trowelling and water compositions.
Claims10
Unsaturated polyester resin composition containing an N,N-dialkylarylamine as the polymerization accelerator, wherein the accelerator is a compound of the formula ##STR11## wherein R is hydrogen or methyl,
- Y.sup.1 is a branched or straight chain alkyl with 1 to 6 carbon atoms,
- Y.sup.2 is a branched or straight chain alkylene with 2 to 8 carbon atoms,
- X is oxygen or --NH--,
- R.sup.1 and R.sup.2 are identical or different and each is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkyl, cycloalkenyl, aryl, aralkyl or alkaryl group which has 1 to 11 carbon atoms and which is unsubstituted or substituted by one or more hydroxyl amino, epoxy, urethane, urea, ester or ether groups,
- or R.sup.1 and R.sup.2 together form a 3-membered to 6-membered ring, which is carbocyclic or contains a nitrogen, oxygen or sulphur hetero-atoms,
- R.sup.3 has the meaning of R.sup.1 or is ##STR12## or R.sup.2 and R.sup.3, together with the adjacent ##STR13## form a 5-membered or 6-membered ring, which contains only the nitrogen atom as a heterocyclic ring member or which additionally is oxygen as a further heteroatom, and
- R.sup.4 and R.sup.5 are identical or different and each is hydrogen, halogen, alkyl or alkenyl having 1 to 10 carbon atoms which is unsubstituted or substituted by halogen.
In an improved process of hardening an unsaturated polyester resin-containing composition by reaction with a polymerization accelerator,
- the improvement comprises said composition being reacted with a polymerization accelerating amount of compound of the formula ##STR14## wherein R is hydrogen or methyl,
- Y.sup.1 is a branched or straight chain alkyl with 1 to 6 carbon atoms,
- Y.sup.2 is a branched or straight chain alkylene with 2 to 8 carbon atoms,
- X is oxygen or --NH--,
- R.sup.1 and R.sup.2 are identical or different and each is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkyl, cycloalkenyl, aryl, aralkyl or alkaryl group which has 1 to 11 carbon atoms and which is unsubstituted or substituted by one or more hydroxyl, amono, epoxy, urethane, urea, ester or ether groups,
- or R.sup.1 and R.sup.2 together form a 3-membered to 6-membered ring, which is carbocyclic or contains a nitrogen, oxygen or sulphur hetero-atoms,
- R.sup.3 has the meaning of R.sup.1 or is ##STR15## or R.sup.2 and R.sup.3 together with the adjacent ##STR16## form a 5-membered or 6-membered ring, which contains only the nitrogen atom as a heterocyclic ring member or which additionally is oxygen as a further heteroatom, and
- R.sup.4 and R.sup.5 are identical or different and each is hydrogen, halogen, alkyl or alkenyl having 1 to 10 carbon atoms which is unsubstituted or substituted by halogen.
Dependencies are inferred from the claim text.