Polarizing plate and optical display including the same
A polarizing plate and polarizer technology, applied in the field of optical displays, can solve problems such as poor durability
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preparation example Construction
[0035] The (meth)acrylic copolymer can be produced by an ordinary production method. For example, a (meth)acrylic copolymer can be prepared by adding an initiator to a monomer mixture, followed by polymerization.
[0036] The crosslinking agent may include at least one selected from the following substances: isocyanate curing agent, carbodiimide curing agent, epoxy curing agent, aziridine curing agent, melamine curing agent, amine curing agent, imide curing agent and amide curing agent.
[0037] Based on 100 parts by weight of the (meth)acrylic acid copolymer, the content of the crosslinking agent is about 0.1 to about 10 parts by weight, such as about 0.1 to about 9 parts by weight. Within this range, the adhesive may exhibit improved adhesion.
[0038] The adhesive may further contain a silane coupling agent. The content of the silane coupling agent may be about 0.01 parts by weight to about 5 parts by weight based on 100 parts by weight of the (meth)acrylic copolymer. W...
preparation example 1
[0070] Preparation Example 1: Preparation of Cellulose Sheets
[0071] Cellulose sheets were prepared using Acetobacter xylinum (Gluconacetobacter xylinum BRC 5, Yonsei Univ.). After placing 5ml to 10ml of Hestrin&Schramm medium in a petri dish, add 50μl of culture solution to the medium, and then culture it statically in an incubator at 30°C for 3 days to 7 days, so that the product with the desired thickness sheets, thus making cellulose sheets, such as Figure 5 shown. according to Figure 5 As a part of the observation results, it can be seen that microbial cells mixed with cellulose fibers were obtained, such as Figure 6 shown. After culturing, cellulose in a gel state is prepared. The cellulose was washed with distilled water, and then soaked in 0.25 M NaOH solution for 48 hours to remove bacterial components therein. In order to increase the elution efficiency of bacterial components, the NaOH solution was replaced at various time points after 3, 6, 12, 24 and 48...
preparation example 2
[0072] Preparation Example 2: Preparation of Adhesive I
[0073] 100 parts by weight of acrylic binder resin, 20 parts by weight of methyl ethyl ketone as a diluent, 0.5 parts by weight of an adduct of diisocyanate and trimethylolpropane as a crosslinking agent, and 0.06 parts by weight of The methoxysilane of the epoxy part is mixed, and then the mixture is stirred for 20 minutes to prepare an adhesive coating solution. The above-mentioned acrylic adhesive resin is obtained by copolymerizing 95 parts by weight of C-containing 1 to C 16 Alkyl monomer (butyl acrylate), 2.5 parts by weight of carboxylic acid group-containing monomer (acrylic acid) and 2.5 parts by weight of hydroxyl group-containing monomer (2-hydroxyethyl methacrylate) to have 1,000,000g / mol average molecular weight and prepared.
[0074] Next, the above coating solution was applied onto a release film, followed by drying, thereby preparing an adhesive sheet having an adhesive layer having a thickness of 25 ...
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