Urea urethanes (II)
AssigneeCliq Swisstech B.V.
InventorsDaniel Haveman, Adrianus Peter Van Veen, Neeltje Wijma
Life of this patent
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Abstract
Suggested is a urea urethane with improved rheological properties, obtainable or obtained according to a process encompassing or consisting of the following steps: (a) providing a monohydroxyl compound; (b) providing a diisocyanate compound; (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer; (d) reacting said pre-polymer with a diamine compound, Wherein said pre-polymer and said diamine are reacted in the presence of a surfactant.
Claims22
A urea urethane obtained according to a process comprising the following steps:
- (a) providing a monohydroxyl compound of formula (I)
- R—OH (I)
- in which R is selected from the group consisting of n-alkyl or isoalkyl containing from 4 to about 22 carbon atoms, cycloalkyl containing from 6 to about 12 carbon atoms, aralkyl containing from 7 to about 12 carbon atoms and a radical of the formula:
- CmH2m+1(O—CnH2n)x— or CmH2m+1(OOC—CvH2v)x—,
- where m is an integer of from 1 to 22, n is an integer of from 2 to 4, x is an integer of from 1 to 15 and v is 4 or 5;
- (b) providing a diisocyanate compound of formula (II)
- OCN-[A]-NCO (II)
- in which A is selected from the group consisting of a linear or branched alkylene radical having from 2 to 10 carbon atoms and a toluylene radical;
- (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer;
- (d) reacting said pre-polymer with a diamine compound, said diamine compound being selected from the group consisting of
- (d1) compound (III)
- H2N-[B]-NH2 (III)
- where B is a linear, branched or cyclicalkylene group having from 2 to 12 carbon atoms;
- and/or
- (d2) compound (IV)
- H2N—(CH2)a-Ph-(CH2)bNH2 (IV)
- in which a and b are integers of from 1 to 5 and are independent of each other, and Ph is a phenyl radical, wherein
- said pre-polymer and said diamine are reacted in the presence of an anionic surfactant and absence of lithium salt.
A process for obtaining a urea urethane comprising the following steps:
- (a) providing a monohydroxyl compound of formula (I)
- R—OH (I)
- in which R is selected from the group consisting of n-alkyl or isoalkyl containing from 4 to about 22 carbon atoms, cycloalkyl containing from 6 to about 12 carbon atoms, aralkyl containing from 7 to about 12 carbon atoms and a radical of the formula:
- CmH2m+1(O—CnH2n)x— or CmH2m+1(OOC—CvH2v)x—,
- where m is an integer of from 1 to 22, n is an integer of from 2 to 4, x is an integer of from 1 to 15 and v is 4 or 5;
- (b) providing a diisocyanate compound of formula (II)
- OCN-[A]-NCO (II)
- in which A is selected from the group consisting of a linear or branched alkylene radical having from 2 to 10 carbon atoms and a toluylene radical;
- (c) reacting said monohydroxyl compound and said diisocyanate compound to form a pre-polymer;
- (d) reacting said pre-polymer with a diamine compound, said diamine compound being selected from the group consisting of
- (d1) compound (III)
- H2N-[B]-NH2 (III)
- where B is a linear, branched or cyclicalkylene group having from 2 to 12 carbon atoms;
- and/or
- (d2) compound (IV)
- H2N—(CH2)a-Ph-(CH2)bNH2 (IV)
- in which a and b are integers of from 1 to 5 and are independent of each other, and Ph is a phenyl radical, wherein
- said pre-polymer and said diamine are reacted in the presence of an anionic surfactant and absence of lithium salt.
Dependencies are inferred from the claim text.