C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/79 (2006.01) C08G 18/62 (2006.01) C09D 175/04 (2006.01)
Patent
CA 2516089
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.
L'invention concerne des compositions de polyisocyanates d'isocyanurate dérivées de bis(isocyanotométhyl)cyclohexane. Les compositions sont préparées par cyclisation de (i)1,3-bis(isocyanotométhyl)cyclohexane ou 1,4-bis(isocyanotométhyl)cyclohexane ou (ii) un mélange isomère d'au moins deux groupes parmi : cis-1,3--bis(isocyanotométhyl)cyclohexane, trans-1,3-bis(isocyanotométhyl)cyclohexane, cis-1,4-bis(isocyanotométhyl)cyclohexane et trans-1,4-bis(isocyanotométhyl)cyclohexane en présence de catalyseurs de trimérisation, puis par désactivation de ces catalyseurs. Les polyisocyanates d'isocyanurate peuvent encore être modifiés de manière à renfermer des fractions d'uréthane, d'urée, de biuret, d'allophanate, d'imino-s-triazine, d'urétonimine ou de carbodiimide.
Argyropoulos John N.
Bhattacharjee Debkumar
Daussin Rory D.
Jimenez Jorge
Dow Global Technologies Inc.
Dow Global Technologies Llc
Smart & Biggar
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