Polyurethane and the use thereof for modifying rheological...

Details Polyurethane and the use thereof for modifying rheological... Polyurethane and the use thereof for modifying rheological...

2006-03-28

2006-03-28

Gorr, Rachel (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S442000, C524S875000, C528S028000, C528S049000

Reexamination Certificate

active

07019061

ABSTRACT:
A polyurethane which contains, as incorporated units,a) at least one diisocyanate,b) at least one polyether having two active hydrogen atoms per molecule andc) at least one compound of the formula Iin-line-formulae description="In-line Formulae" end="lead"?R1—Z1  (I)in-line-formulae description="In-line Formulae" end="tail"?whereR1is C8- to C30-alkyl, C8- to C30-alkenyl, aryl-C6–C22-alkyl or aryl-C6–C22-alkenyl, the alkyl group having 1, 2, 3 or 4 nonneighboring double bonds, andZ1is OH, SH or NHR2, R2being hydrogen, C1- to C6-alkyl or C5- to C8-cycloalkyl,and its use are described.

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