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Title:
ACTIVE ESTER, CURABLE RESIN COMPOSITION, AND CURED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2021/177233
Kind Code:
A1
Abstract:
Provided are: an active ester from which a cured product exhibiting excellent flexibility and low dielectric characteristics can be obtained; a curable resin composition containing said active ester; a cured product obtained by using said curable resin composition; and a semiconductor sealing material, a semiconductor device, a prepreg, a flexible wiring board, a circuit board, a build-up film, a build-up board, a fiber-reinforced composite material, and a fiber-reinforced resin molded article, which use said curable resin composition. The present invention pertains to an active ester characterized by: having a structure in which a residue (A) of a polyhydric alcohol compound and a residue (Q) of an aromatic polyvalent carboxylic acid are bonded via an ester bond; and having a terminal that is sealed with a residue (C) of a monovalent aromatic hydroxyl group-containing compound.

Inventors:
KIM YOUNGCHAN (JP)
HAZAMA MASAKI (JP)
HAYASHI KOJI (JP)
Application Number:
PCT/JP2021/007712
Publication Date:
September 10, 2021
Filing Date:
March 01, 2021
Export Citation:
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Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C08G59/00; C07C69/80; C07C69/82; C08G59/42; C08J5/24; H01L23/29; H01L23/31; H05K1/03; H05K3/46
Domestic Patent References:
WO2016098488A12016-06-23
Foreign References:
JP2005068063A2005-03-17
JPS4915063B11974-04-12
JPS4915062B11974-04-12
JP2016098321A2016-05-30
Other References:
CHANG HAO-SHIUNG, WU TZI-YI, CHEN YUN: "Synthesis and properties of TLCPs with 2,6- naphthalene-based mesogen, polymethylene spacer, and nonlinear 4,4'- thiodiphenyl links", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 83, no. 7, 2002, pages 1536 - 1546, XP055852279
KRIIGER J K, MAN A, ROBERTS R, UNRUH H.-G, BITAR M B, NGUYEN-TRONG HA0, SELIGER H: "Segmented block copolymers of uniform chain length and defined structure", MACROMOLECULAR CHEMIE, vol. 185, no. 7, 1984, pages 1469 - 1491, XP055852283
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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