WO2025163359 - FLAME RETARDANT POLYCARBONATE COMPOSITIONS
National phase entry is expected:
Publication Number
WO/2025/163359
Publication Date
07.08.2025
International Application No.
PCT/IB2024/060768
International Filing Date
31.10.2024
Title **
[English]
FLAME RETARDANT POLYCARBONATE COMPOSITIONS
[French]
COMPOSITIONS IGNIFUGES DE POLYCARBONATE
Applicants **
SHPP GLOBAL TECHNOLOGIES B.V.
Inventors
WIRTZ, Remco
LUGGER, Jody Ann Martin
VAN DE GRAMPEL, Robert Dirk
HAGENAARS, Arno
Priority Data
24154955.9
31.01.2024
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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| * | |
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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.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2023 | |
| EPO | Filing, Examination, Granting | 8149 | |
| Japan | Filing, Examination, Granting | 2169 | |
| South Korea | Filing, Examination, Granting | 2050 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,131
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Abstract[English]
Thermoplastic compositions include: from about 10 wt% to about 90 wt% of a polycarbonate component including a post-consumer recycled polycarbonate (PCR-PC); from about 5 wt% to about 20 wt% of a polycarbonate-siloxane copolymer; from about 5 wt% to about 25 wt% of a glass fiber; and from about 1 wt% to about 3 wt% of a phosphazene flame retardant. The PCR-PC has a total fries rearrangement of at least 200 parts per million (ppm) as determined by proton-nuclear magnetic resonance (proton-NMR) spectroscopy, or the PCR-PC comprises at least 0.2 mol% of a branching agent. In certain aspects the composition has a UL94 flame retardant rating of V0 at a thickness of 1.5 mm, passes a Ball Pressure Test at 125 °C, has a notched Izod impact strength of at least 10 kJ/m2 at 23 °C, and/or has a VICAT softening temperature of at least 132 °C.[French]
L'invention concerne des compositions thermoplastiques qui comprennent : d'environ 10 % en poids à environ 90 % en poids d'un composant polycarbonate renfermant un polycarbonate recyclé post-consommation (PCR-PC) ; d'environ 5 % en poids à environ 20 % en poids d'un copolymère polycarbonate-siloxane ; d'environ 5 % en poids à environ 25 % en poids d'une fibre de verre ; et d'environ 1 % en poids à environ 3 % en poids d'un agent ignifugeant phosphazène. Le PCR-PC a un réarrangement de Fries total, tel que déterminé par spectroscopie par résonance magnétique nucléaire du proton (RMN du proton), d'au moins 200 parties par million (ppm) ou le PCR-PC comprend au moins 0,2 % en mole d'un agent de ramification. Dans certains aspects, la composition a un indice d'inflammabilité UL94 de V0 à une épaisseur de 1,5 mm, passe avec succès un essai de pression à la bille à 125 °C, a une résistance au choc Izod entaillé d'au moins 10 kJ/m2 à 23 °C et/ou a une température de ramollissement VICAT d'au moins 132 °C.