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In-Cheon
In-Cheon Han, Garak-Dong Songpa-Gu Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100129569 | Acrylic Pressure-Sensitive Adhesive Compositions - The present invention relates to an acrylic pressure-sensitive adhesive composition, and more precisely, an acrylic pressure-sensitive adhesive composition which is prepared by copoly-merization of a vinyl and/or acrylic monomer having a cross-linkable functional group and comprises 100 weight part of a high molecular weight (meth)acrylic copolymer which is prepared by copolymerization of a vinyl and/or acrylic monomer harboring a cross-linkable functional group and whose weight average molecular weight is 40˜100 times as high as the entanglement molecular weight, 5˜50 weight part of a low molecular weight (meth)acrylic copolymer which does not contain a cross-linkable functional group and whose weight average molecular weight is 2˜15 times as high as entanglement molecular weight, and 0.01˜10 weight part of a multifunctional cross-linking agent. The acrylic pressure-sensitive adhesive composition of the present invention has reliable adhesion durability under high temperature and high humidity and at the same time reduces the light leakage due to the stress relaxation and enhances the cutting-efficiency of a polarizing plate. | 05-27-2010 |
In-Cheon Han, Songpa-Gu KR
| Patent application number | Description | Published |
|---|---|---|
| 20100068420 | OPTICALLY COMPENSATED ACRYLIC PRESSURE-SENSITIVE ADHESIVE COMPOSITION, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE CONTAINING THE SAME - The present invention relates to an acrylic pressure-sensitive adhesive composition which comprises a (meth)acrylic copolymer comprising 70 to 95 parts by weight of an alkyl(meth)acrylic acid ester monomer, in which alkyl has 2 to 14 carbon atoms, and 5 to 30 parts by weight of a (meth)acrylic acid ester monomer containing a copolymerizable aromatic group, wherein the composition has a gel fraction of 10 to 55% and a swelling ratio of 30 to 110, and a sol (uncross-linked polymer) eluted therein with a solvent has a weight average molecular weight of 600,000 or more; a polarizing plate comprising the composition; and a liquid crystal display device comprising the same. The composition according to the present invention provides workability such as an excellent durability and re-workability, and has an effect of improving a light leakage phenomenon, since the size of birefringence occurred under stress is very small. | 03-18-2010 |
In-Cheon Hwang, Gyeongju-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20100279871 | OPTICALLY ACTIVE (R)-ARYLOXYPROPIONIC ACID AMIDES AND HERBICIDAL COMPOSITION COMPRISING SAME - The present invention relates to an optically active (R)-aryloxypropionic acid amide compound which has high selectivity and safety for protecting a crop such as rice, wheat, barley and soy bean, and exhibits excellent herbicidal activity against weeds, and a herbicidal composition comprising the same. | 11-04-2010 |