Tulipalin copolymers

Details Tulipalin copolymers Tulipalin copolymers

2011-04-26

2011-04-26

Lipman, Bernard (Department: 1796)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S270000, C526S328500, C526S329300, C526S329600, C526S342000, C526S347000

Reexamination Certificate

active

07932336

ABSTRACT:
Copolymers are disclosed comprising structural units derived from α-methylene-γ-butyrolactone, styrene, methyl methacrylate and acrylonitrile. The copolymers may be used as protective layers in multilayer articles that include UV sensitive substrate materials. The multilayer articles may also include a silicone hardcoat.

REFERENCES:
patent: 2003/0130414 (2003-07-01), Brandenburg et al.
patent: 2004/0230019 (2004-11-01), Brandenburg
patent: 2005/0031835 (2005-02-01), Overholt et al.
patent: 2005/0101731 (2005-05-01), Brandenburg et al.
Akkapeddi et al. Polymer (1979), 20(10), 1215-16.

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