Patent application number | Description | Published |
20090104450 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRODUCTION METHOD THEREOF, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive composition for an optical film of the present invention comprises 100 parts by weight of a (meth)acrylic polymer comprising 45 to 99.99% by weight of an alkyl (meth)acrylate monomer unit and 0.01 to 2% by weight of a tertiary amino group-containing monomer unit; and 0.01 to 2 parts by weight of a peroxide as a crosslinking agent. The pressure-sensitive adhesive composition can form an pressure-sensitive adhesive layer that has satisfactory reworkability such that optical films can be easily peeled from liquid crystal panels with no adhesive residue and also has satisfactory processability such that it can be worked without pressure-sensitive adhesive fouling or dropout. | 04-23-2009 |
20090116111 | PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, PRODUCTION METHOD THEREOF, AND IMAGE DISPLAY - A pressure-sensitive adhesive optical film of the present invention comprises an optical film; and a pressure-sensitive adhesive layer laminated on at least one side of the optical film, wherein the pressure-sensitive adhesive layer is formed from an acrylic pressure-sensitive adhesive comprising a (meth)acrylic polymer comprising 30 to 99.99% by weight of an alkyl (meth)acrylate monomer unit and 0.01 to 15% by weight of a functional group-containing monomer unit, and the (meth)acrylic polymer in the acrylic pressure-sensitive adhesive is crosslinked by electron beam irradiation. The pressure-sensitive adhesive optical film has a high level of reworkability, durability and workability. | 05-07-2009 |
20090208741 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILMS, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - There is provided a pressure-sensitive adhesive composition for optical films. The composition can form a pressure-sensitive adhesive layer that can prevent light leakage caused by stress associated with dimensional change of a component such as an optical film, which include the pressure-sensitive adhesive layer that has reworkability such that it can be easily peeled from a component, and that has satisfactory processability such that it can be processed without pressure-sensitive adhesive stain or dropout, after it is formed on an optical film. A pressure-sensitive adhesive optical film produced using the composition is also provided. The pressure-sensitive adhesive composition includes a (meth)acrylic polymer including (a) 34 to 94% by weight of an alkyl(meth)acrylate monomer unit, (b) 5 to 35% by weight of an aromatic ring-containing (meth)acrylate monomer unit, and (c) 0.01 to 0.5% by weight of an amino group-containing (meth)acrylate monomer unit and further including (d) 0.05 to 3% by weight of a carboxyl group-containing (meth)acrylate monomer unit and/or (e) 0.05 to 2% by weight of a hydroxyl group-containing (meth)acrylate monomer unit and having a weight average molecular weight of 1,600,000 to 3,000,000 as determined by gel permeation chromatography; crosslinking agents including 0.01 to 5 parts by weight of an isocyanate crosslinking agent and 0.01 to 2 parts by weight of a silane coupling agent based on 100 parts by weight of the (meth)acrylic polymer. | 08-20-2009 |
20110045289 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILMS, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - There is provided a pressure-sensitive adhesive composition for optical films. The composition can form a pressure-sensitive adhesive layer that can prevent light leakage caused by stress associated with dimensional change of a component such as an optical film, which include the pressure-sensitive adhesive layer that has reworkability such that it can be easily peeled from a component, and that has satisfactory processability such that it can be processed without pressure-sensitive adhesive stain or dropout, after it is formed on an optical film. A pressure-sensitive adhesive optical film produced using the composition is also provided. The pressure-sensitive adhesive composition includes a (meth)acrylic polymer including (a) 34 to 94% by weight of an alkyl (meth)acrylate monomer unit, (b) 5 to 35% by weight of an aromatic ring-containing (meth)acrylate monomer unit, and (c) 0.01 to 0.5% by weight of an amino group-containing (meth)acrylate monomer unit and further including (d) 0.05 to 3% by weight of a carboxyl group-containing (meth)acrylate monomer unit and/or (e) 0.05 to 2% by weight of a hydroxyl group-containing (meth)acrylate monomer unit and having a weight average molecular weight of 1,600,000 to 3,000,000 as determined by gel permeation chromatography; crosslinking agents including 0.01 to 5 parts by weight of an isocyanate crosslinking agent and 0.01 to 2 parts by weight of a silane coupling agent based on 100 parts by weight of the (meth)acrylic polymer. | 02-24-2011 |
20110070435 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILMS, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - There is provided a pressure-sensitive adhesive composition for optical films. The composition can form a pressure-sensitive adhesive layer that can prevent light leakage caused by stress associated with dimensional change of a component such as an optical film, that has reworkability such that it can be easily peeled from a component, and that has satisfactory processability such that it can be processed without pressure-sensitive adhesive stain or dropout, after it is formed on an optical film. A pressure-sensitive adhesive optical film produced using the composition is also provided. The pressure-sensitive adhesive composition is prepared to include a (meth)acrylic polymer including (a) 34 to 94% by weight of an alkyl (meth)acrylate monomer unit, (b) 5 to 50% by weight of an aromatic ring-containing (meth)acrylate monomer unit, and (c) 0.01 to 0.5% by weight of an amino group-containing (meth)acrylate monomer unit; 0.01 to 2 parts by weight of a peroxide as a crosslinking agent; and 0.01 to 2 parts by weight of a silane coupling agent based on 100 parts by weight of the (meth)acrylic polymer. | 03-24-2011 |
20110123799 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive composition for an optical film of the present invention includes a (meth)acrylic polymer(A) that comprises, as monomer units, 67 to 96.99% by weight of alkyl (meth)acrylate(a1), 1 to 20% by weight of benzyl (meth)acrylate(a2), 2 to 10% by weight of a carboxyl group-containing monomer(a3) and 0.01 to 3% by weight of a hydroxyl group-containing monomer(a4), has a weight average molecular weight(Mw) of 1,600,000 or more, and satisfy a weight average molecular weight(Mw)/number average molecular weight(Mn) ratio of 1.8 to 10. The pressure-sensitive adhesive composition can satisfy durability that does not cause peeling, separation at the state in which the optical film was attached, and can form a pressure-sensitive adhesive layer capable of improving display non-uniformity caused by a white display leakage at a peripheral portion. | 05-26-2011 |
20120121824 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive composition for an optical film of the present invention comprises a (meth)acryl-based polymer (A): and a polyether compound (B) having a polyether skeleton and a reactive silyl group represented by formula (1): —SiR | 05-17-2012 |
Patent application number | Description | Published |
20090110924 | PRESSURE-SENSITIVE ADHESIVE FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, PRODUCTION METHOD THEREOF, AND IMAGE DISPLAY - A pressure-sensitive adhesive for an optical film of the present invention comprises a (meth)acrylic polymer comprising 50 to 99.99% by weight of alkyl (meth)acrylate monomer unit and 0.01 to 30% by weight of a photocrosslinkable monomer unit having an unsaturated double bond-containing polymerizable functional group and a photocrosslinkable moiety different from the functional group. A pressure-sensitive adhesive layer is formed from the pressure-sensitive adhesive on at least one side of an optical film, wherein the photocrosslinkable moiety of the (meth)acrylic polymer in the pressure-sensitive adhesive is crosslinked by active energy ray irradiation. The pressure-sensitive adhesive can form the pressure-sensitive adhesive layer with a high level of durability and preferable workability. | 04-30-2009 |
20090162577 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILMS, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - There is provided an optical film pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer that has reworkability such that optical films therewith can be easily separated from liquid crystal panels with no adhesive residue and also has satisfactory processability such that it can be processed without causing adhesive stain or dropout after it is formed on an optical film. The optical film pressure-sensitive adhesive composition includes 100 parts by weight of a (meth)acrylic polymer including, as monomer units, (a) 50 to 99.79% by weight of an alkyl (meth)acrylate monomer, (b) 0.01 to 0.45% by weight of a tertiary amino group-containing monomer, and (c) 0.1 to 3% by weight of a hydroxyl group-containing monomer; and 0.01 to 2 parts by weight of a crosslinking agent that is at least one selected from the group consisting of hexamethylene diisocyanate, hydrogenated xylylene diisocyanate, and isophorone diisocyanate, or a polyisocyanate compound derived therefrom. | 06-25-2009 |
20090233093 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILMS, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - There is provided a pressure-sensitive adhesive composition for optical films. The composition can form a pressure-sensitive adhesive layer that can prevent light leakage caused by stress associated with dimensional change of a component such as an optical film, that has reworkability such that it can be easily peeled from a component, and that has satisfactory processability such that it can be processed without pressure-sensitive adhesive stain or dropout, after it is formed on an optical film. A pressure-sensitive adhesive optical film produced using the composition is also provided. The pressure-sensitive adhesive composition is prepared to include a (meth)acrylic polymer including (a) 34 to 94% by weight of an alkyl (meth)acrylate monomer unit, (b) 5 to 50% by weight of an aromatic ring-containing (meth)acrylate monomer unit, and (c) 0.01 to 0.5% by weight of an amino group-containing (meth)acrylate monomer unit; 0.01 to 2 parts by weight of a peroxide as a crosslinking agent; and 0.01 to 2 parts by weight of a silane coupling agent based on 100 parts by weight of the (meth)acrylic polymer. | 09-17-2009 |
20130098663 | TOUCH PANEL SENSOR - A capacitive touch panel sensor in which waviness generated in a film furnished with a transparent electrode pattern can be small. The touch panel sensor according to the present invention includes a first film, a first transparent electrode pattern formed on the first film, a first adhesive layer laminated on the first film so as to cover the first transparent electrode pattern, a second film laminated on the first adhesive layer, a second adhesive layer laminated on the second film, a third film laminated on the second adhesive layer, and a second transparent electrode pattern formed on the third film, wherein Da/Db is 0.5 to 0.9 where a total thickness of the second film and the second adhesive layer is Da, and a distance between the first transparent electrode pattern and the second transparent electrode pattern is Db. | 04-25-2013 |