公开(公告)号：US20230279220A1

公开(公告)日：2023-09-07

申请号：US18016780

申请日：2021-07-20

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI ,  Kristi Jean NARANG ,  Martin SAS ,  Hochul JUNG ,  Jiali JIANG

IPC: C08L67/02 ,  C08K3/04 ,  H05K9/00 ,  G01S7/02

CPC classification number: C08L67/02 ,  C08K3/04 ,  H05K9/0083 ,  G01S7/02 ,  C08K2201/006 ,  C08K2201/001 ,  C08L2203/20

Abstract: Disclosed is a composite comprising from about 50 wt. % to about 97 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a polyester; and from about 3 wt. % to about 15 wt. % of a carbon-based filler, wherein the carbon-based filler has a primary surface area of from about 500 to about 1000 m2/g, wherein the composite exhibits a dielectric constant ε′ of between 5 and 30 and a dissipation loss ε″ of between 0.5 and 45, measured at frequencies between about 10 and about 120 GHz. A molded sample of the composite exhibits a percent reflected power measured in transmission mode of at least 15% when observed according to a Free Space method at frequencies from about 75 GHz to 110 GHz.

公开(公告)号：US20230053977A1

公开(公告)日：2023-02-23

申请号：US17789807

申请日：2020-12-31

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI ,  Martin SAS ,  Joel THAMBI ,  Wei ZHAO ,  Jianhua XU

IPC: C08L69/00 ,  C08K3/04

Abstract: Disclosed is a composite from about 50 wt. % to about 90 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a polycarbonate polysiloxane copolymer; and from about 10 wt. % to about 50 wt. % of a carbon-based filler. The composite exhibits a dielectric constant ε′ of between 5 and 20 and a dissipation loss ε″ of between 0.1 and 6, measured at frequencies between about 10 and 120 GHz.