Polyester-polyether hybrid urethane acrylate oligomer for UV...

Details Polyester-polyether hybrid urethane acrylate oligomer for UV... Polyester-polyether hybrid urethane acrylate oligomer for UV...

2007-01-23

2007-01-23

McClendon, Sanza L. (Department: 1711)

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

C522S090000, C522S097000, C522S150000, C522S152000, C522S173000, C522S174000, C522S182000, C428S3550EN, C428S3550RA, C427S208400, C427S207100

Reexamination Certificate

active

10832871

ABSTRACT:
The invention is a pressure sensitive adhesive (PSA) composition, which is the ultraviolet radiation (UV) cured reaction product of a polyester-polyether-based urethane acrylate, one or more acrylate monomers, and a UV photosensitizer. The polyester-polyether-based urethane acrylate is the reaction product of between about 50 and 90 wt-% of a polyester diol having a molecular weight ranging from about 500 to 3200; between about 10 and 50 wt-% of a polyether polyol having a molecular weight ranging from about 1000 to 6000; between about 1 and 5 wt-% of a hydroxy-functional acrylate; and a polyisocyanate.

REFERENCES:
patent: 2004/0084138 (2004-05-01), Henke et al.
patent: WO 0234858 (2002-05-01), None

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