WO2023228124 - ANTI-DRIP POLYCARBONATE COMPOSITIONS
National phase entry:
Publication Number
WO/2023/228124
Publication Date
30.11.2023
International Application No.
PCT/IB2023/055377
International Filing Date
25.05.2023
Title **
[English]
ANTI-DRIP POLYCARBONATE COMPOSITIONS
[French]
COMPOSITIONS DE POLYCARBONATE ANTI-GOUTTE
Applicants **
SHPP GLOBAL TECHNOLOGIES B.V.
Inventors
VOLLENBERG, Peter Hendrikus Theodorus
EVANS, Tom L.
Priority Data
22175409.6
25.05.2022
EP
Application details
| Total Number of Claims/PCT | * |
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| Number of Drawings | * |
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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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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2101 | |
| EPO | Filing, Examination, Granting | 8353 | |
| Japan | Filing, Examination, Granting | 2153 | |
| South Korea | Filing, Examination, Granting | 2071 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,418
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A polycarbonate composition comprises a linear homopolycarbonate and optionally, a styrene-containing copolymer; a poly(carbonate-siloxane) including about 10 to less than about 30 wt% siloxane, present in amount effective to provide about 1 to about 6 wt% siloxane, based on the total weight of the composition; a poly(carbonate-siloxane) having about 30 to about 70 wt%, present in an amount effective to provide greater than about 0.3 wt% siloxane, based on the total weight of the composition; a flame retardant; and optionally, an additive composition. Molded samples can have a UL94 flame test rating or V-0 at one or both of 1.5 mm and 2.9 mm thickness, can exhibit anti-drip properties, and can be essentially halogen-free, i.e., the polycarbonate compositions can include about 900 ppm or less of each of chlorine, bromine, and optionally fluorine and also can include about 1500 ppm or less of total chlorine, bromine, and fluorine.[French]
L'invention concerne une composition de polycarbonate comprenant un homopolycarbonate linéaire et éventuellement un copolymère contenant du styrène ; un poly(carbonate-siloxane) comprenant d'environ 10 à moins d'environ 30 % en poids de siloxane, présent en une quantité efficace pour fournir d'environ 1 à environ 6 % en poids de siloxane, sur la base du poids total de la composition ; un poly(carbonate-siloxane) ayant d'environ 30 à environ 70 % en poids, présent en une quantité efficace pour fournir plus d'environ 0,3 % en poids de siloxane, sur la base du poids total de la composition ; un retardateur de flamme ; et éventuellement, une composition d'additif. Des échantillons moulés peuvent avoir un indice d'essai de flamme UL94 ou V -0 à une ou deux de 1,5 mm et 2,9 mm d'épaisseur, peuvent présenter des propriétés anti-goutte, et peuvent être essentiellement exempts d'halogène, c'est-à-dire que les compositions de polycarbonate peuvent comprendre environ 900 ppm ou moins de respectivement du chlore, du brome et éventuellement du fluor et peuvent également comprendre environ 1500 ppm ou moins de globalement du chlore, du brome et du fluor.