WO2026033381 - THERMOPLASTIC COMPOSITIONS HAVING HIGH STIFFNESS AND LOW EMI SHIELDING PROPERTIES
National phase entry is expected:
Publication Number
WO/2026/033381
Publication Date
12.02.2026
International Application No.
PCT/IB2025/057925
International Filing Date
04.08.2025
Title **
[English]
THERMOPLASTIC COMPOSITIONS HAVING HIGH STIFFNESS AND LOW EMI SHIELDING PROPERTIES
[French]
COMPOSITIONS THERMOPLASTIQUES AYANT DES PROPRIÉTÉS DE RIGIDITÉ ÉLEVÉE ET DE BLINDAGE CONTRE LES EMI FAIBLE
Applicants **
SHPP GLOBAL TECHNOLOGIES B.V.
Inventors
WANG, Jian
CHENG, Yunan
ZHENG, Yun
Priority Data
24193005.6
06.08.2024
EP
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2023 | |
| EPO | Filing, Examination, Granting | 8159 | |
| Japan | Filing, Examination, Granting | 2170 | |
| South Korea | Filing, Examination, Granting | 2051 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,143
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Abstract[English]
Thermoplastic compositions include: a) from about 30 wt% to about 75 wt% of a polymer base resin including polycarbonate, polybutylene terephthalate, polyamine, polyphenylene sulfide, polyetherimide, polyphenylene oxide, copolymers thereof, or a combination thereof; b) from about 5 wt% to about 20 wt% of a carbon fiber having a tensile modulus of at least 200 GPa; c) from about 5 wt% to about 45 wt% of a first reinforcing filler including a flat glass fiber, a round glass fiber, or a combination thereof; and d) from about 0.1 wt% to about 2 wt% of at least one additional additive. The composition has a density of no more than 1.60 g/cm3, a flexural modulus of at least 12 GPa, and an EMI shielding effectiveness of no more than 35 dB at a frequency of from 1 GHz to 6 GHz.[French]
Les compositions thermoplastiques selon l'invention comprennent : a) d'environ 30 % en poids à environ 75 % en poids d'une résine de base polymère comprenant du polycarbonate, du polybutylène téréphtalate, de la polyamine, du sulfure de polyphénylène, du polyétherimide, de l'oxyde de polyphénylène, des copolymères de ceux-ci, ou une combinaison de ceux-ci ; b) d'environ 5 % en poids à environ 20 % en poids d'une fibre de carbone ayant un module de traction d'au moins 200 GPa ; c) d'environ 5 % en poids à environ 45 % en poids d'une première charge de renforcement comprenant une fibre de verre plate, une fibre de verre ronde, ou une combinaison de celles-ci ; et d) d'environ 0,1 % en poids à environ 2 % en poids d'au moins un additif supplémentaire. La composition a une densité inférieure ou égale à 1,60 g/cm3, un module de flexion d'au moins 12 GPa, et une efficacité de blindage contre les EMI inférieure ou égale à 35 dB à une fréquence de 1 GHz à 6 GHz.