Hydroxy-aromatic compound, process for the preparation thereof, and use of the compound
AssigneeDsm IP Assets B.V.
InventorsRudolfus A T M Van Benthem, Renier H M Kierkels
Life of this patent
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Abstract
Hydroxy-aromatic compounds of formula (I) are provided: wherein at least one of the set consisting of R1, R3, and R5 is a group of formula (II); any remaining one or two of the set consisting of R1, R3, and R5 being H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; R2 and R4 are H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; wherein formula (II) is the following group: wherein EWG is an electron-withdrawing group.
Claims11
A resin comprising a hydroxy-aromatic compound of formula
- wherein:
- at least one of the set consisting of R1, R3,and R5 is a group of formula (III);
- any remaining one or two of the set consisting of R1, R3, and R5 being H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system;
- R2 and R4 are H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system;
- formula (III) is the following group:
- wherein R6 is a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group.
A resin comprising a hydroxy-aromatic compound of formula (VIII)
- wherein R1 and R5 is a group of formula (III):
- wherein R6 is a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group;
- and
- wherein any remaining one of the set consisting of R1 and R5 being H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system;
- and
- wherein R2 and R4 are H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system.
Process for the preparation of a resin comprising a reaction step which includes bringing a hydroxy-aromatic compound of formula (IV) into contact with an alkanol hemiacetal compound according to formula (VI), optionally in the presence of a catalyst, wherein formula (IV) is:
- wherein R7, R8, R9, R10 and R11 are H, OH, C1-C12 alkyl group, or an oligomeric or polymeric system, whereby at least one of the set consisting of R7, R9, and R11 is H;
- and
- wherein formula (VI) is:
- wherein R6 is a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group;
- and
- wherein R12 is H, a C1-C12 alkyl group, an aryl group, an aralkyl group or a cycloalkyl group.
Process for the preparation of a hydroxy-aromatic resin, wherein the raw materials comprise a compound according to formula(IV) as hydroxy-aromatic compound, and a compound according to formula (VI), wherein formula (IV) is:
- wherein R7, R8, R9, R10 and R11 are H, OH, C1-C12 alkyl group, or an oligomeric or polymeric system, whereby at least one of the set consisting of R7, R9, and R11 is H;
- and
- formula (VI) is an alkanol hemiacetal according to formula:
- wherein R6 is a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group;
- and
- wherein R12 is H, a C1-C12 alkyl group, an aryl group, an aralkyl group or a cycloakyl group.
Hydroxy-aromatic resin which is the reaction product of a hydroxy-aromatic compound according to formula (IV), and an alkanol hemiacetal compound according to formula (VI), wherein formula (IV) is:
- wherein R7, R8, R9, R10 and R11 are H, OH, C1-C12 alkyl group, or an oligomeric or polymeric system, whereby at least one of the set consisting of R7, R9, and R11 is H;
- and
- wherein formula (VI) is:
- wherein R6 is a C1-C12 alkyl group, aryl group, aralkyl group or cycloalkyl group;
- and
- wherein R12 is H, a C1-C12 alkyl group, an aryl group, an aralkyl group or a cycloalkyl group.
Dependencies are inferred from the claim text.