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US 2020/0399439 A1Published application
New polyisocyanate compositions
AssigneeVencorex France
InventorPhilippe OLIER
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Abstract
The invention relates to a new polyisocyanate composition for producing coatings, said composition comprising at least one monophenol alkyl compound, a mixture of phosphite compounds for preventing yellowing and/or precipitation of the composition, and optionally, a catalyst.
Claims12
A polyisocyanate composition comprising:
- a) at least one polyisocyanate with the general formula (I):
- O═C═N—Y—(N═C═O)n wherein:
- Y is the remainder of an isocyanate or a polyisocyanate after elimination of an isocyanate function and
- n is at least equal to 1,
- b) at least one monophenol alkyl compound,
- c) a mixture of phosphite compounds comprising a maximum of 17% of trialkyl phosphite moles in relation to the total phosphite moles,
- d) optionally at least one cross-linking catalyst and
- e) optionally one or more additives.
5 more elements
Dependencies are inferred from the claim text.