Patent ID: 6800366
Filing Date: 2004-10-05
Classification: C09J,C09K,Y10T

Abstract:
An acrylic pressure sensitive adhesive (PSA) composition for a polarizer comprising a component having a positive stress optical coefficient, wherein the component having a positive stress optical coefficient is an aromatic compound represented by formula 1: whereinX and Y, and R1 and R2 are substituted groups selected from C1ËœC20 alkyl, C1ËœC20 alkoxy, C6ËœC20 aryl, hydrogen, cyano, chloride, bromide, hydroxy, dimethyl amine, or cumyl; Aâ€”B is â€”CH&boxH;Nâ€”, â€”N&boxH;Nâ€”, â€”N&boxH;N(O)â€”, â€”COOâ€”, â€”CH2Oâ€”, â€”C(R1)COâ€”, â€”COOâ€”CH2â€”, â€”C&boxH;Câ€”, â€”Câ‰¡Câ€”, â€”Sâ€”, â€”SO2â€”, -&PHgr;(R1)â€”, â€”CH&boxH;N-&PHgr;(R1)â€”N&boxH;CHâ€”, â€”C&boxH;C-&PHgr;(R1)â€”N&boxH;Câ€”, â€”C&boxH;C-&PHgr;(R1)â€”C&boxH;Câ€”, â€”C&boxH;Câ€”&PHgr;(R1) -&PHgr;(R2) â€”C&boxH;Câ€”, â€”C&boxH;N-&PHgr;(R1) -&PHgr;(R2)â€”N&boxH;Câ€”, â€”C&boxH;N-&PHgr;(R1)-&PHgr;(R2)â€”C&boxH;Câ€” that act as cores, or a core of naphthalene or anthracene, or Aâ€”B can be eliminated for direct connection; wherein when a is an integer of 1 to 3, b is an integer of 0 to 3; and when a is 0, b is an integer of 1 to 3.