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AssigneeLintec Corporation
InventorsTakashi Suzuki, Kenji Sato, Kazuhiro Kon, Toshio Sugizaki
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An adhesive composition comprising a crosslinked product of (A) a copolymer of (meth)acrylic esters and (B) a crosslinking agent, and (C) a phenol derivative. An adhesive composition comprising a crosslinked product of (D) a copolymer of (meth)acrylic esters having a weight-average molecular weight of 500,000 to 2,500,000 or (D′) a mixture of the copolymer (D) and an oligomer of (meth)acrylic esters having a weight-average molecular weight of 1,000 to 10,000 in a ratio of amounts of 100:5 to 100:100 by weight and (E) a crosslinking agent, and (F) a radical scavenger. An adhesive optical component comprising a layer of the adhesive composition disposed on at least one face of an optical component. The adhesive composition serves to suppress degradation of easily hydrolyzable materials by hydrolysis, improve durability and provide excellent stress relaxation without plasticizers.
An adhesive composition which comprises a crosslinkable product of (A) a copolymer of (meth)acrylic esters and (B) a crosslinking agent, and (C) at least one phenol compound selected from the group consisting of 2,6-di-tert-butyl-p-cresol, butylhydroxyanisole, stearyl β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate, 4,4′-butylidenebis (3-methyl-6-tert-butylphenol), 3,6-dioxaoctamethylenebis[3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionate], and 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl) butane, wherein the crosslinking agent (B) is in an amount of 0.001 to 50 parts by weight per 100 parts by weight of the copolymer (A).
An adhesive composition which comprises a crosslinkable product of components which comprises (D) a copolymer of (meth)acrylic esters having a weight-average molecular weight of 500,000 to 2,500,000 and (E) a crosslinking agent, and (F) a radical scavenger, wherein the crosslinking agent (E) is in an amount of 0.001 to 50 parts by weight per 100 parts by weight of the copolymer(D), and the radical scavenger (F) is in an amount of 0.01 to 10 parts by weight per 100 parts by weight of the copolymer (D).
An adhesive composition which comprises a crosslinkable product of (D′) a mixture of a copolymer of (meth)acrylic esters having a weight-average molecular weight of 500,000 to 2,500,000 and an oligomer of (meth) acrylic esters having a weight-average molecular weight of 1,000 to 10,000 in amounts such that a ratio of the amounts by weight of the copolymer to the oligomer is 100:5 to 100:100 and (E) a crosslinking agent, and (F) a radical scavenger, wherein the crosslinking agent (E) is in an amount of 0.001 to 50 parts by weight per 100 parts by weight of the mixture (D′) and the radical scavenger (F) is in an amount of 0.01 to 10 parts by weight per 100 parts by weight of the mixture (D′).
Dependencies are inferred from the claim text.