公开(公告)号：US11505647B2

公开(公告)日：2022-11-22

申请号：US17253771

申请日：2019-04-08

Applicant: ENEOS Corporation

Inventor： Gosuke Washino

IPC: C08G63/60 ,  H01B3/42

Abstract: The invention provides a resin molded article containing a wholly aromatic liquid crystalline polyester resin and formed by being subjected to heat treatment, in which the enthalpy change Δ H1 at the melting point of the first cycle and the enthalpy change Δ H2 at the melting point of the second cycle of the temperature elevation process measured by a differential scanning calorimeter satisfy Δ H1/Δ H2≥2.0, and the dielectric loss tangent measured by the split-post dielectric resonator (SPDR) method at a measurement frequency of 10 GHz is 0.85×10−3 or less.

公开(公告)号：US11781009B2

公开(公告)日：2023-10-10

申请号：US17286760

申请日：2019-10-29

Applicant: ENEOS Corporation

Inventor： Gosuke Washino

IPC: C08L67/03 ,  C08G63/60 ,  C08G63/80

CPC classification number: C08L67/03 ,  C08G63/605 ,  C08G63/80 ,  C08L2203/20

Abstract: The invention provides a resin composition that is capable of relaxing anisotropy while keeping the crystalline structure derived from liquid crystallinity and that has isotropic structure and physicality from a macroscopic view, even after the melt-processed molded article obtained by applying shear has been molded, cooled and fused without applying shear stress and subsequently re-cooled. The resin composition comprises a liquid crystal polyester resin (A) comprising structural unit (I) derived from a hydroxycarboxylic acid, structural unit (II) derived from a diol compound, and structural unit (III) derived from a dicarboxylic acid, and a resin (B) other than the liquid crystal polyester resin (A), and has an X-ray diffraction measured after fusing the resin composition that satisfies a specific condition.

公开(公告)号：US10822453B2

公开(公告)日：2020-11-03

申请号：US16314998

申请日：2017-07-03

Applicant: ENEOS CORPORATION

Inventor： Gosuke Washino

IPC: C08G63/60 ,  H01B17/56 ,  H01B3/42 ,  B29C45/00 ,  B29K67/00

Abstract: The present invention provides a wholly aromatic liquid crystalline polyester resin having an excellent heat resistance while having an extremely low dielectric tangent.