Patent Number: 7,714,096

Title: Resin composition, cured product and optical parts

Abstract: It is provided for a resin composition including (A) at least one polyamic acid having the structure represented by the following formula (1): ##STR00001## wherein R.sup.1 is independently an alkyl group having 1 to 3 carbon atoms or a cyano group; a is independently an integer of 0 to 4; R is a tetravalent organic group; n is an integer of 1 to 4; and m is an integer of 1 to 100,000, and (E) an organic solvent.

Inventors: Ueda; Mitsuru (Tokyo, JP), Ando; Shinji (Tokyo, JP), Liu; Jin-gang (Tokyo, JP), Shibasaki; Yuzi (Tokyo, JP), Nakamura; Yasuhiro (Tokyo, JP), Sugawara; Shuichi (Tokyo, JP), Ariyuki; Miwa (Tokyo, JP), Eriyama; Yuichi (Tokyo, JP), Kuriyama; Keisuke (Tokyo, JP), Takase; Hideaki (Tokyo, JP)

Assignee: Tokyo Institute of Technology

International Classification: C08K 3/10 (20060101); C08F 283/04 (20060101); C08G 69/26 (20060101); C08G 69/42 (20060101); C08K 3/22 (20060101); C08G 69/48 (20060101); C08G 75/00 (20060101); C08G 79/02 (20060101); C09K 19/00 (20060101)

Expiration Date: 5/11/12018