公开(公告)号：US20250154352A1

公开(公告)日：2025-05-15

申请号：US18838642

申请日：2023-02-06

Applicant: BASF SE

Inventor： Zhen Ke Wei ,  Qiong Jie Han ,  Li Xia Wang ,  Xi Lin

IPC: C08L67/06 ,  C08K3/26 ,  C08K3/40 ,  C08K7/14

Abstract: Disclosed is a polybutylene terephthalate composition, comprising polybutylene terephthalate (PBT); amorphous polymer, in which the amorphous polymer has a refractive index of at least 1.55, and does not comprise carbonate group; alkali metal carbonate and/or bicarbonate; optionally glass fiber; and optionally additives. This polybutylene terephthalate composition exhibits greatly enhanced LT, in the meantime, balanced other properties are retained comparing with polybutylene terephthalate composition without such carbonate and/or bicarbon.

公开(公告)号：US20240301162A1

公开(公告)日：2024-09-12

申请号：US18558431

申请日：2022-04-27

Applicant: BASF SE

Inventor： Li Xia Wang ,  Zhen Ke Wei ,  Tao Liu ,  Li Rong He

IPC: C08K3/04 ,  C08K7/14

CPC classification number: C08K3/041 ,  C08K7/14 ,  C08K2201/001 ,  C08K2201/011

Abstract: The present invention relates to a polybutylene terephthalate composition, comprising (A) 40 to 99.8% by weight of polybutylene terephthalate, (B) 0.2 to 10% by weight of at least one conductive filler selected from the group consisting of carbon nanotubes, carbon nanostructures, and a combination thereof, and (C) 0 to 50% by weight of glass fiber, each being based on the total weight of the poly butylene terephthalate composition, wherein the carbon nanostructures each comprise a plurality of carbon nanotubes which are branched, crosslinked, and/or sharing common walls with one another. The present invention also relates to an EMI shielding article produced from the polybutylene terephthalate composition.

公开(公告)号：US20240059871A1

公开(公告)日：2024-02-22

申请号：US18269586

申请日：2021-12-10

Applicant: BASF SE

Inventor： Zhen Ke Wei ,  Li Rong He ,  Tao Liu ,  Li Xia Wang

IPC: C08K9/08 ,  C08K3/04 ,  H05K9/00

CPC classification number: C08K9/08 ,  C08K3/04 ,  H05K9/0081 ,  H05K9/006

Abstract: The present invention relates to a polybutylene terephthalate composition, comprising (A) 45 to 75% by weight of polybutylene terephthalate, (B) 20 to 45% by weight of at least one carbon fiber, (C) 0 to 20% by weight of at least one solid filler other than the carbon fiber (B), and (D) 0 to 30% by weight of at least one thermoplastic polyester other than polybutylene terephthalate, each being based on the total weight of the polybutylene terephthalate composition, wherein the at least one carbon fiber has a carbon content of 93% by weight or greater, and comprises a sizing agent other than epoxy sizing agent. The present invention also relates to an EMI shielding article produced from the polybutylene terephthalate composition.