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US 9,434,807 B2Granted
Carbodiimide-containing compositions and method for the production and use thereof
AssigneeRhein Chemie Rheinau GmbH
InventorsWilhelm Laufer, Armin Eckert, Martina Hauck
Life of this patent
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Abstract
Carbodiimide containing compositions include diilsocyenates, polyols, and liquid carbodiimide of the formula where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and R3 and R5 are each independently C1-C3-alkyl.
Claims14
A composition comprising:
- a polyether ester polyol that is liquid at temperatures of 30° C.-80° C., and/or a polyester polyol that is liquid at temperatures of 30° C.-80° C.;
- a carbodiimide of the formula (I) that is liquid at room temperature
- where R1, R2, R4 and R6 are each independently C3-C6-alkyl, and
- R3 and R6 are each independently C1-C3-alkyl, and
- a diisocyanate,
- where a ratio of diisocyanate to polyol is 20-50:100 parts by weight.
3 more elements
A polymer obtained by reaction of:
- a polyether ester polyol that is liquid at temperatures of 30° C.-80° C., and/or a polyester polyol that is liquid at temperatures of 30° C.-80° C., and
- a carbodiimide of the formula (I) that is liquid at room temperature
- where R1, R2, R4 and R6 is each independently C3-C6-alkyl, and
- R3 and R5 is each independently C1-C3-alkyl,
- with a diisocyanate at temperatures between 80° C. and 130° C., where a ratio of diisocyanate to polyol is 20-50:100 parts by weight.
2 more elements
Dependencies are inferred from the claim text.