NORBORNENE-BASED ADDITION TYPE COPOLYMER, EPOXY GROUP-CONTAINING NORBORNENE-BASED ADDITION TYPE COPOLYMER AND CROSSLINKABLE POLYMER COMPOSITION

Japanese Patent JP3971476

B2

PROBLEM TO BE SOLVED: To obtain the subject copolymer, having a specific recurring unit and capable of producing a copolymer excellent in electrical characteristics such as permittivity and dielectric loss tangent and heat resistance and exhibiting excellent adhesion to a metal layer by reacting the subject copolymer with a peroxide as an epoxidizing agent.
SOLUTION: The objective copolymer comprises at least one kind of norbornene-based addition type recurring unit selected from a group comprising a recurring unit of formula I [(a) to (c) are each 0, 1 or 2; R1 to R14 are independently H, a hydrocarbon, a halogen, an alkoxy, etc.] and a recurring unit of formula II [(d) to (g) and π are each 0 or 1 or 2; R15 to R30 are independently H, an alkyl, a hologen, an alkoxy, etc.), and a norbornene-based addition type recurring unit of formula III [(h) to (j) are each 0, 1 or 2; R31 to R44 are independently H, an alkyl, a halogen, an alkoxy, cyano, etc.) and the copolymer has 500-500,000 number-average molecular weight. The copolymer can thereby widely utilized as an insulating material, etc., in electrical and electronic equipment fields.

Hosaka Ryo
Kazue Tsunogae
Yasuhiro Wakisaka

JP33489996A

September 05, 2007

November 29, 1996

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Zeon Corporation

C08F232/08; C08L45/00; C08F8/08; C08L63/00; (IPC1-7): C08F232/08; C08F8/08; C08L45/00; C08L63/00

JP3205408A
JP2298510A
JP8259784A
JP9508649A

Shigeaki Nishikawa

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