公开(公告)号：US20240158604A1

公开(公告)日：2024-05-16

申请号：US18281605

申请日：2022-03-16

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI ,  Paul Scott LONG ,  Walter THOMPSON ,  Matthew NIEMEYER ,  Scott DAVIS

IPC: C08K3/04

CPC classification number: C08K3/04 ,  C08K2201/001 ,  C08K2201/006 ,  C08K2201/014

Abstract: Aspects of the disclosure relate to a composition including: from about 35 wt % to about 70 wt % of at least one polyethylene polymer; from about 25 wt % to about 55 wt % of at least one graphite filler; and from about 2 wt % to about 15 wt % of a carbon powder filler having a BET surface area of at least 50 square meters per gram (m2/g). The polyethylene polymer has a density of at least 0.94 gram per cubic centimeter (g/cm3), a melt flow rate (MFR) of at least 10 g per 10 minutes (g/10 min) measured at 190° C. and 21.6 kilogram (kg), and an Environmental Stress-Cracking Resistance (ESCR) of at least 500 hours. The composition has a volume electrical resistivity of less than 5 ohm·centimeter (ohm·cm) and a MFR of at least 4 g/10 min measured at 280° C. and 21.6 kg.

公开(公告)号：US20240093004A1

公开(公告)日：2024-03-21

申请号：US18269643

申请日：2021-12-31

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI

IPC: C08K7/06 ,  C08K3/04 ,  C08L67/02 ,  H05K9/00

CPC classification number: C08K7/06 ,  C08K3/04 ,  C08L67/02 ,  H05K9/009 ,  C08K2201/004 ,  C08K2201/016 ,  C08K2201/019 ,  G01S7/027

Abstract: Disclosed is a composite comprising: from about 50 wt. % to about 99 wt. % of a thermoplastic resin, wherein the thermoplastic resin comprises a polyester; and from about 0.1 wt. % to 15 wt. % of a carbon fiber filler, wherein the carbon fiber has a bulk density of at least 500 g/l and a volume electrical resistivity of less than 2,000 μΩ#cm, with individual filaments that have a length-to-diameter ratio of at least 300, wherein a 3.175 mm thick molded sample of the composite exhibits a Transmission of less than 15% of incident microwave radiation when observed according to a Free Space method, measured at frequencies of 75 to 110 GHz, wherein the combined weight percent value of all components does not exceed 100 wt. %, and all weight percent values are based on the total weight of the composite.

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.

公开(公告)号：US20210198483A1

公开(公告)日：2021-07-01

申请号：US17128435

申请日：2020-12-21

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI ,  Edward KUNG ,  Peter VOLLENBERG ,  Christopher ZIEGLER

IPC: C08L69/00 ,  C08L83/04 ,  C08K3/04

Abstract: Thermoplastic compositions include: (a) a thermoplastic polymer including a polycarbonate component; (b) a poly(carbonate-siloxane) copolymer; and (c) from 4 wt % to 25 wt % carbon black. The composition has a total siloxane content of from 2 wt % to 14 wt %. The thermoplastic compositions exhibit improved physical properties as compared to compositions that do not include the poly(carbonate-siloxane) copolymer, including volume resistivity, melt viscosity, impact strength, puncture impact energy and surface resistivity.

公开(公告)号：US20240084132A1

公开(公告)日：2024-03-14

申请号：US18269635

申请日：2021-12-28

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI

IPC: C08L71/12 ,  C08K3/04

CPC classification number: C08L71/12 ,  C08K3/04 ,  C08K2201/001 ,  C08K2201/006 ,  C08K2201/014 ,  C08L2203/20 ,  C08L2205/03

Abstract: A thermoplastic composition includes: (a) from about 82 wt % to about 92 wt % of a thermoplastic resin including poly(phenylene ether) and polystyrene; and (b) from about 3 wt % to about 13 wt % of a carbon-based filler. The carbon-based filler has a specific surface area of at least 650 square meters per gram (m2/g) and an Oil Absorption Number of at least 250 milliliter per 100 gram (ml/100 g). The composition has a dielectric constant ε′ of between 3.5 and 10 and a dissipation loss ε″ of between 0.25 and 5, as measured at a frequency of between about 75 gigahertz (GHz) and about 110 GHz. A ⅛-inch-thick molded sample of the composition exhibits a Percent Absorbed Power measured in Transmission mode of at least 50% when observed according to a Free Space method at frequencies from about 75 GHz to about 110 GHz.

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：US20250066578A1

公开(公告)日：2025-02-27

申请号：US18576778

申请日：2022-07-07

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI

IPC: C08K3/04 ,  C08L67/02 ,  H01Q1/52

Abstract: Thermoplastic compositions include: a thermoplastic polymer component including a polyester; and from greater than 0.10 wt % to about 1.95 wt % of a carbon nanotube (CNT) fdler. A 6 in×8 in×⅛ in molded sample of the composition has a percent Absorbed Power measured in Transmission mode of at least 60% when observed at a 77 GHz frequency according to a Free Space method. In some aspects the polyester includes polybutylene terephthalate (PBT). Further aspects include articles (e.g., a radar sensor, a camera, an electronic control unit, etc.) including a molded part including a microwave absorbing material (absorber). The article may have at least two openings to allow the transmission of microwave radiation between a transmitting antenna and a receiving antenna located in/on the printed circuit board of the sensor.

公开(公告)号：US20240417530A1

公开(公告)日：2024-12-19

申请号：US18705105

申请日：2022-10-26

Applicant: SHPP GLOBAL TECHNOLOGIES B.V.

Inventor： Norberto SILVI

IPC: C08K3/04 ,  C08J3/22 ,  C08L83/10 ,  H05K9/00

Abstract: Thermoplastic compositions include: (a) a polycarbonate resin: (b) a poly (carbonate-siloxane) copolymer having a siloxane content of at least about 5 wt %; and (c) from about 0.15 wt % to about 4.5 wt % of a carbon nanotube filler. The carbon nanotubes have an average diameter of from about 8-12 nanometers (nm), a length of about 5 micron (μm) or less, a surface area of about 220 square meters per gram (m2/gr) or higher, and a volume resistivity lower than about 10−2 Ohm·centimeters (Ohm·cm). The composition has a volume electrical resistivity of at least about 1.0E+06 Ohm·cm as determined in accordance with ASTM D257. A molded sample of the composition has a percent absorbed power measured in Transmission mode of at least about 60% when observed according to a Free Space method at frequencies from about 75 GHz to 110 GHZ.