Polyalkenyl ether resin

Details Polyalkenyl ether resin Polyalkenyl ether resin

2006-10-10

2006-10-10

Gorr, Rachel (Department: 1711)

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S271000, C525S093000, C525S123000, C525S165000, C522S090000, C522S096000, C522S114000, C522S120000, C526S262000, C526S300000, C526S319000, C526S320000, C526S321000, C526S323100, C526S323200

Reexamination Certificate

active

07119160

ABSTRACT:
There are provided a polyalkenyl ether type polyurethane, which is excellent in flexibility, aor the like, and which has in the molecule, a structural unit represented by formula (XXX):(wherein n represents an integer of 2 to 1000, R1represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl, and R2, R3and R4, which are the same or different, each represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted aralkyl, and R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be respectively the same or different), and the like.

REFERENCES:
patent: 3635914 (1972-01-01), Daniels et al.
patent: 1 227 108 (2003-07-01), None
patent: 2001-072728 (2001-03-01), None
Bennevault, et al., “Polyurethane networks based on α,ω-dihydroxytelechelic and on random hydroxyl-functionalized side chain. . . ”,Macromol. Chem. Phys., vol. 198 (1997), pp. 3051-3064.

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