05-01-2017 дата публикации
Номер: US20170002231A1
The present disclosure relates to a two-component composition containing a polymer polyol, a dial chain extender, an aldimine of formula (I), optionally additional polyols and diphenylmethandiisocyanates in the two components. The composition is particularly suitable as a manually applicable solvent-free liquid film for coating and/or sealing floors and roofs. It also has a long open time, cures quickly and without complications in a wide temperature and humidity range, has a high level of strength and is weather resistant. 2. The composition as claimed in claim 1 , wherein the aldimine of the formula (I) is selected from the group consisting of:N,N′-bis(2,2-dimethyl-3-lauroyloxypropylidene)hexamethylene-1,6-diamine, N,N′-bis(2,2-dimethyl-3-lauroyloxypropylidene)-3-aminomethyl-3, 5, 5-trimethylcyclohexylamine, N-2,2-dimethyl-3-lauroyloxypropylidene-2-(2-aminoethoxy)ethanol, N,N′-bis(2,2-dimethyl-3-lauroyloxypropylidene)polyoxypropylenediamine with average molecular weight in a range from 710 to 810 g/mol and N,N′,N″-tris(2,2-dimethyl-3-lauroyloxypropylidene)polyoxypropylenetriamine with average molecular weight in a range from 1190 to 1290 g/mol.3. The composition as claimed in claim 1 , wherein the solid polymer is a copolymer of acrylonitrile and styrene (SAN) or is a polyurea/polyhydrazodicarbonamide (PHD) or is a polyurethane.4. The composition as claimed in claim 1 , wherein the polyether polyol is an ethylene-oxide-terminated polyoxypropylenetriol with molecular weight in a range from 1000 to 6000 g/mol.5. The composition as claimed in claim 1 , wherein the diol chain extender is selected from the group consisting of:1,2-ethanediol, 1,2-propanediol, 1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, 2-methyl-1,3-propanediol, 1,5-pentanediol, 1,2-pentanediol, 2,4-pentanediol, 2-methyl-1,4-pentanediol, 2,2-dimethyl-1,3-propanediol, 1,6-hexanediol, 1,2-hexanediol, 3-methyl-1,5-pentanediol, 1,8-octanediol, 1,2-octanediol, 3,6- ...
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