Thermoforming sheets and molded containers
JP7873318B2Active Publication Date: 2026-06-11FP CORP
Patent Information
- Application Number
- JP2025004674
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2024-04-05
- Filing Date
- 2025-01-14
- Publication Date
- 2026-06-11
- Estimated Expiration
- 2045-01-14
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Abstract
To provide a thermoforming sheet and a molded container that have an excellent elastic modulus, use a small amount of resin, and have impact resistance in a freezing environment such as -30°C.SOLUTION: There is provided a thermoforming sheet (1) having a base layer (2) containing an inorganic filler and a polypropylene-based resin, in which the base layer (2) contains an inorganic filler containing talc and calcium carbonate in an amount of 20 to 30 mass% relative to the base layer (2), a mass composition ratio of the talc to the calcium carbonate is 50 / 50 to 75 / 25, an amount of the talc is 12 to 18 mass% of the base layer (2), an average particle diameter (D50) of the talc is 3 to 7 μm, the polypropylene resin is mainly composed of block polypropylene, and has a tensile modulus of elasticity in at least one of MD and TD of 1500 MPa or more, and a DuPont 50% breaking energy at a test temperature (-30°C) of 1.5 J or more.SELECTED DRAWING: Figure 1
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Citation Information
Patent Citations
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