WO2026058137 - POLYCARBONATE-POLYBUTYLENE TEREPHTHALATE COMPOSITIONS WITH IMPROVED HEAT RESISTANCE AND FLAME RETARDANT PERFORMANCE
National phase entry is expected:
Publication Number
WO/2026/058137
Publication Date
19.03.2026
International Application No.
PCT/IB2025/059020
International Filing Date
08.09.2025
Title **
[English]
POLYCARBONATE-POLYBUTYLENE TEREPHTHALATE COMPOSITIONS WITH IMPROVED HEAT RESISTANCE AND FLAME RETARDANT PERFORMANCE
[French]
COMPOSITIONS DE POLYCARBONATE-POLYBUTYLÈNE TÉRÉPHTALATE PRÉSENTANT UNE RÉSISTANCE À LA CHALEUR ET DES PERFORMANCES IGNIFUGES AMÉLIORÉES
Applicants **
SHPP GLOBAL TECHNOLOGIES B.V.
Inventors
SHAN, Wei
JI, Weiyun
VOLLENBERG, Peter
WANG, Qin
Priority Data
24199391.4
10.09.2024
EP
Application details
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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 | 2024 | |
| EPO | Filing, Examination, Granting | 8113 | |
| Japan | Filing, Examination, Granting | 2153 | |
| South Korea | Filing, Examination, Granting | 2071 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,101
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Abstract[English]
Thermoplastic compositions include: a. from about 1 wt% to about 70 wt% of a polycarbonate homopolymer component; b. from about 10 wt% to about 40 wt% of a polybutylene terephthalate (PBT) component; c. from about 5 wt% to about 30 wt% of a polycarbonate copolymer component; and d. from about 1 wt% to about 15 wt% of a flame retardant component comprising a cyclic phosphazene compound having an oxaphosphorin ring-containing structure. The compositions have improved heat resistance and flame retardant properties.[French]
L'invention concerne des compositions thermoplastiques comprenant : a. d'environ 1 % en poids à environ 70 % en poids d'un composant homopolymère de polycarbonate ; b. d'environ 10 % en poids à environ 40 % en poids d'un composant polybutylène téréphtalate (PBT) ; c. d'environ 5 % en poids à environ 30 % en poids d'un composant copolymère de polycarbonate ; et d. d'environ 1 % en poids à environ 15 % en poids d'un composant ignifuge comprenant un composé phosphazène cyclique ayant une structure contenant un cycle oxaphosphorine. Les compositions présentent une résistance à la chaleur et des propriétés ignifuges améliorées.