Propylene Polymers For Three-Dimensional Printing
Patent No. EP4495149 (titled "Propylene Polymers For Three-Dimensional Printing") was filed by Lummus Novolen Technology on Jul 18, 2024. The application was issued on Dec 3, 2025.
Patent Summary
This propylene copolymer composition for 3D printing (FFF and APF) comprises 70–95 wt% propylene and 3.0–25 wt% of at least two $\alpha$-olefin comonomers selected from ethylene, 1-butylene, 1-pentene, 1-hexene, 1-heptene, and 1-octene, as determined by FTIR. The comonomer with the lower molar mass is present at 0.3–10 wt%. Technical specifications include a melt flow rate (MFR) of 5.4–250 g/10 min (ISO 1133, 230°C, 2.16 kg), a polydispersity index (PI) of 1.0–3.7 (determined via rheological oscillatory frequency sweep at 210°C where $PI = 10^5\text{ Pa}/G_c$), and an analytical temperature rising elution fractionation full width at half maximum (ATREF FWHM) of 1.0–15.4°C determined by CRYSTAF-TREF in 1,2-dichlorobenzene using a specific cooling/heating
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Date
Description
EP4495149
- Application Number
- EP24189390A
- Filing Date
- Jul 18, 2024
- Status
- Granted And Under Opposition
- Oct 31, 2025
- Publication Date
- Dec 3, 2025
- External Links
- Slate, Register , Google Patents