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OwnerRory Daussin, Jorge Jimenez +2inventors
InventorsRory Daussin, Jorge Jimenez, Debkumar Bhattacharjee, John Agryropoulbs
Estimating the term…
Isocyanurate polyisocyanates compositions derived from bis(isocyanotomethyl)cyclohexane are disclosed. The compositions are prepared by cyclizing (i) 1,3-bis(isocyanotomethyl)cyclohexane or 1,4-bis(isocyanotomethyl)cyclohexane or (ii) an isomeric mixture of two or more of cis-1,3-bis(isocyanotomethyl)cyclohexane, trans-1,3-bis(isocyanotomethyl)cyclohexane, cis-1,4-bis(isocyanotomethyl)cyclohexane and trans-1,4-bis(isocyanotomethyl)cyclohexane in the presence of a trimerization catalysts, and then deactivating these catalysts. The isocyanurate polyisocyanates can be further modified to contain urethane, urea, biuret, allophanate, imino-s-triazine, uretonimine or carbodiimide moieties.
An isocyanurate polyisocyanate composition comprising the reactions product of bis(isocyanotomethyl)cyclohexane wherein the bis(isocyanotomethyl)cyclohexane comprises one or more of cis-1,3-bis(isocyanotomethyl)cyclohexane, trans-1,3-bis(isocyanotomethyl)cyclohexane, cis-1,4-bis(isocyanotomethyl)cyclohexane and trans-1,4-bis(isocyanotomethyl)cyclohexane with the proviso that the isomeric mixture comprises at least about 5 weight percent of the 1,4-isomer.
A process for the preparation of an isocyanurate polyisocyanate mixture comprising partially cyclizing an organic diisocyanates in the presence of a trimerization catalyst, deactivating the trimerization catalyst when the cyclization is complete, wherein the diisocyanate comprises one or more of cis-1,3-bis(isocyanotomethyl)cyclohexane, trans-1,3-bis(isocyanotomethyl)cyclohexane, cis-1,4-bis(isocyanotomethyl)cyclohexane and trans-1,4-bis(isocyanotomethyl)cyclohexane with the proviso that the isomeric mixture comprises at least about 5 weight percent of the 1,4-isomer.
Dependencies are inferred from the claim text.