Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-08-30
2011-08-30
Teskin, Fred M (Department: 1762)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C526S134000, C526S145000, C526S172000, C526S239000, C526S274000, C526S279000, C526S256000, C526S262000, C526S263000, C526S266000
Reexamination Certificate
active
08008415
ABSTRACT:
The present invention relates to a norbornene polymer that comprises a norbornene monomer having a photoreactive functional group, and a method of manufacturing the same. The norbornene polymer comprises at least 50 mol % of exo isomers among the norbornene monomers having the photoreactive functional group. Since the norbornene polymer according to the present invention comprises at least 50 mol % of exo isomers among the norbornene monomers having the photoreactive functional group, a molecular weight is significantly increased while the yield is not reduced during the manufacturing of the polymer. In views of the three dimensional structure, stability is ensured because the polymer has a planar structure in which the photoreactive groups between the molecules are close to each other. Therefore, the distance between the photoreactive groups is reduced, thus increasing the photoreaction rate.
REFERENCES:
patent: 5464669 (1995-11-01), Kang et al.
patent: 5498799 (1996-03-01), Torihara et al.
patent: 6875555 (2005-04-01), Feiring et al.
patent: 2005/0010006 (2005-01-01), Chun et al.
patent: 2006/0115448 (2006-06-01), Tew et al.
patent: 2006/0160970 (2006-07-01), Kim et al.
patent: 1 415 974 (2004-05-01), None
patent: 1 453 350 (2004-07-01), None
patent: 1 623 967 (2006-02-01), None
patent: 11-181127 (1999-07-01), None
patent: 10-2004-0005593 (2004-01-01), None
Schadt et al., “Surface-Induced Parallel Alignment of Liquid Crystals by Linearly Polymerized Photopolymers”, Jpn. J. Appl. Phys., vol. 31, 1992, pp. 2155-2164.
Dyaduysha et al., “Peculiarity of an Oblique Liquid Crystal Alignment Induced by a Photosensitive Orientant”, Jpn. J. Appl. Phys., vol. 34, 1995, pp. L 1000-L 1002.
Choi Dai-Seung
Chun Sung-Ho
Jung Hye-Young
Kim Heon
Kim Jong-Chan
LG Chem Ltd.
McKenna Long & Aldridge LLP
Teskin Fred M
LandOfFree
Photoreactive exo-rich norbornene polymer and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Photoreactive exo-rich norbornene polymer and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoreactive exo-rich norbornene polymer and method for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2735737