TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation (claimed): (I) is prepared by subjecting tetracarboxylic dianhydride, 1,2,3,4-cyclohexane tetracarboxylic dianhydride and binary primary amine to condensation reaction, or subjecting tetracarboxylic dianhydride, 1,2,3,4-cyclohexane tetracarboxylic dianhydride, binary primary amine, and monomers through polycondensation reaction. Preferred Components: The 1,2,3,4-cyclohexane tetracarboxylic dianhydride and binary primary amine by condensation reaction, or 1,2, 3, 4-cyclohexane tetracarboxylic dianhydride and two or more than two of binary primary amine by condensation reaction. 1,2,3,4-cyclohexane tetracarboxylic dianhydride is 1, 2, 3, 4-cyclohexane tetracarboxylic dianhydride and/or 1,2,3,4-cyclohexane tetracarboxylic dianhydride monomer. Binary primary amine is 4,4'-diamino dicyclohexyl methane, 3,3'4,4'-diamino dicyclohexyl methane, 1,3-diamine, 3,3'-diamino diphenylmethane, 4,4'-diamino diphenylmethane, 3,3'-diamino diphenyl ether, 4,4'-diamino diphenyl ether, 3,3'-diaminodiphenyl sulfone, 4,4'-diaminodiphenyl sulfone, 3,3'-diphenyl ketone, 4, 4'-diphenyl ketone, 2,2'-dual (trifluoromethyl) diamino biphenyl, 2, 2'-di (trifluoromethyl)-4,4'-diamino diphenyl ether, 2,2-di(trifluoromethyl)-4,4'-diamino diphenyl thioether, 2,2-bi (4 phenyl) hexafluoropropane, 2,2-di(3 phenyl)hexafluoropropane, 1,3-di(3-aminophenoxy) benzene, 1,3-di (4-aminophenoxy) benzene, 4,4'-di (3-aminophenoxy) diphenylsulfone, 2,2-(diamino phenoxy)phenylhexafluoropropane, 1,3-bis (4-aminog-2-trifluoromethylphenoxy)benzene, 1,3-(5-amino-3-trifluoromethylphenoxy) benzene, 2,6-(2-4 phenoxyl) trifluorotoluene, 2,6-(3,5-phenoxy)trifluorotoluene, 4,4'-bis(2-trifluoromethyl-4-aminophenoxy)diphenylsulfone, 4,4'-bis(3-trifluoromethyl-5-aminophenoxy)diphenylsulfone, 2,2-di-(2-trifluoromethyl-4-aminophenoxy) phenylpropane, 2,2-di-(3-trifluoromethyl-5-aminophenoxy) phenylpropane, 2,2-di-(2-4) phenylhexafluoropropane and 2,2-(3,5-phenyl)hexafluoropropane. Preferred Compounds: Compound (I) is of formula (Ia).B'=1, 2, 3, 4-cyclohexane tetracarboxylic dianhydride substituted residue comprising one or more 48 groups of compounds e.g. formulae (c)-(e).    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: Glass transition temperature of polyimide resin material is 250-400 degrees C, UV absorption cut-off wavelength is 380-450 nm (86-94%). Preferred Definitions:    A1, A2=one or more of 28 groups, e.g. groups of formulae (a)-(c); and    n1, n2=10-10000.