Composition from a polyisocyanate and a polyether monoamine
AssigneeHuntsman International LLC
InventorsGerhard Jozef Bleys, Hans Godelieve Guido Verbeke
Life of this patent
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Abstract
Composition obtained by reacting a polyisocyanate which is a diphenylmethane diisocyanate, optionally comprising a homologue comprising 3 or more isocyanate groups, and/or a variant of such diisocyanate with a monoalkylether of a polyoxyalkylene monoamine having an average molecular weight of 550-3000 and an oxyethylene content of more than 50% by weight, calculated on the weight of the monoamine, and the alkyl group having 1-4 carbon atoms at index of 100-250. It is used as plasticizer, particularly in polyurethane and/or polyurea materials.
Claims16
A thermoplastic or thermosetting material comprising a urethane group, a urea group, or combinations thereof, and wherein the material has a hardblock content of less than 50% by weight, and wherein the material further comprises a reaction product obtained by reacting, at an NCO index of 100-250, (i) a polyisocyanate and (ii) a monoalkylether of a polyoxyalkylene monoamine wherein component (ii) comprises an average molecular weight of 550-3000 and an oxyethylene content of more than 50% by weight, calculated on the weight of the monoamine, and wherein the alkyl group of component (ii) comprises 1-4 carbon atoms, and wherein the reaction product does not form urethane, urea or isocyanurate groups in the presence of polyisocyanates, polyols and polyamines.
A process for making a plasticized thermoplastic or thermosetting material comprising a urethane group, a urea group, or combinations thereof, and wherein the material has a hardblock content of less than 50% by weight, and wherein the process comprises combining and mixing (A) a composition obtained by reacting, at an NCO index of 100-250, (i) a polyisocyanate with (ii) a monoalkylether of a polyoxyalkylene monoamine comprising an average molecular weight of 550-3000 and an oxyethylene content of more than 50% by weight, calculated on the weight of the monoamine, and wherein the alkyl group of component (ii) comprises 1-4 carbon atoms, and wherein the composition does not form urethane, urea or isocyanurate groups in the presence of polyisocyanates, polyols and polyamines;
- with (B) reactive ingredients used to make said thermoplastic or thermosetting material and allowing these ingredients to react to form said material;
- or (C) such thermoplastic or thermosetting material;
- and wherein the amount of the composition ranges from 5 to 80% by weight calculated on the total weight of the thermoplastic or thermosetting material.
A thermoplastic or thermosetting material comprising a urethane group, a urea group, or combinations thereof, and wherein the material has a hardblock content of less than 50% by weight and wherein the material further comprises a composition obtained by reacting, at an NCO index of 100-250, (i) a polyisocyanate with (ii) a monoalkylether of a polyoxyalkylene monoamine comprising an average molecular weight of 550-3000 and an oxyethylene content of more than 50% by weight, calculated on the weight of the monoamine, and wherein the alkyl group of component (ii) comprises 1-4 carbon atoms;
- and wherein the amount of the composition ranges from 5 to 80% by weight calculated on the total weight of the thermoplastic or thermosetting material, and wherein the composition does not form urethane, urea or isocyanurate groups in the presence of polyisocyanates, polyols and polyamines.
Dependencies are inferred from the claim text.