Photocurable resin composition, finely embossed...

Details Photocurable resin composition, finely embossed... Photocurable resin composition, finely embossed...

2008-09-02

2008-09-02

McClendon, Sanza L (Department: 1796)

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

Synthetic resins

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

C522S090000, C522S096000, C522S104000, C522S107000, C522S182000, C522S074000, C522S077000, C522S079000, C522S083000, C522S084000, C522S085000, C522S086000, C524S001000, C524S003000, C524S004000, C524S005000, C524S008000, C524S080000, C524S401000, C524S413000, C524S430000, C524S437000, C524S434000, C524S442000

Reexamination Certificate

active

10178189

ABSTRACT:
The photocurable resin composition in the first aspect of the invention comprises, as essential components, (A) a binder resin having photopolymerizable functional groups and (B) inorganic superfine particles in the order of sub-micron which can be dispersed in a colloidal form; the photocurable resin composition in the second aspect comprises, as essential components, (C) a binder resin containing photopolymerizable functional groups and (D) hydrophobic fine silica particles; and the photocurable resin composition in the third aspect comprises, as essential components, (E) a binder resin containing acrylic resin and urethane acrylate resin and/or polyester acrylate having photopolymerizable functional groups and (F) an organometallic coupling agent. These photocurable resin compositions are excellent not only in fitting to the shape of a cavity in a stamper complementary to a finely embossed pattern on an optical article, thus enabling rapidly and accurately shaping a finely embossed pattern, but also in form retention after shaping and resistance to blocking, thus enabling exposure to light after removal of the stamper and storage in a rolled form to achieve excellent successive producibility.

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