26-12-2013 дата публикации
Номер: US20130344340A1
Принадлежит:
Polyurea/polythiourea compositions comprising the reaction product of a first component comprising isocyanate and a second component comprising an amine, wherein the first component further comprises an isocyanate functional polythioether-polyurethane and/or polythiourethane, and/or the second component further comprises an amine/hydroxy functional polythioether, are disclosed. Methods for using the coating, and substrates coated therewith, are also disclosed. 1. A coating composition comprising polyurea and polythiourea formed from a reaction mixture comprising:{'sub': 12', '3', '2', '6', '4', '3', '2, 'a first component comprising (i) an isocyanate selected from one or more of isophorone diisocyanate (IPDI), cyclohexylene diisocyanate, 4,4′-methylenedicyclohexyl diisocyanate (HMDI), tetramethylxylyl diisocyanate, OCN—C(CH)—CHC(CH)—NCO, 1,4-tetramethylene diisocyanate, 1,5-pentamethylene diisocyanate, 1,6-hexamethylene diisocyanate (HMDI), 1,7-heptamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, 1,10-decamethylene diisocyanate, 2-methyl-1,5-pentamethylene diisocyanate, phenylene diisocyanate, toluene diisocyanate (TDI), xylene diisocyanate, 1,5-naphthalene diisocyanate, chlorophenylene 2,4-diisocyanate, bitoluene diisocyanate, dianisidine diisocyanate, tolidine diisocyanate, alkylated benzene diisocyanates, methylenediphenyl diisocyanate, 3,3′-dimethyl-4,4′-diphenylmethane diisocyanate, the uretdione of 1,6-hexamethylene diisocyanate, the biuret of 1,6-hexanediisocyanate, the isocyanurate of 1,6-hexanediisocyanate, and the isocyanurate of isophorone diisocyanate; and (ii) an isocyanate functional compound comprising a polythioether-polyurethane and/or polythiourethane; wherein at least 1 percent by weight of the first component comprises at least one polyisocyanate monomer; and'}a second component comprising an amine and an amine/hydroxy functional polythioether that is different from the amine, wherein ...
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