Invention Grant
- Patent Title: Clear polypropylene composition for thermoforming
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Application No.: US18516697Application Date: 2023-11-21
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Publication No.: US12116475B2Publication Date: 2024-10-15
- Inventor: Douglas Burmaster , Joachin Azzi , Russell McDonald
- Applicant: FINA TECHNOLOGY, INC.
- Applicant Address: US TX Houston
- Assignee: FINA TECHNOLOGY, INC.
- Current Assignee: FINA TECHNOLOGY, INC.
- Current Assignee Address: US TX Houston
- Agency: NORTON ROSE FULBRIGHT US LLP
- Main IPC: C08L23/16
- IPC: C08L23/16 ; B29C48/00 ; C08K5/098 ; C08K5/105 ; C08K5/134 ; C08K5/20 ; C08K5/52

Abstract:
Disclosed is a polymeric composition that can include at least 95 wt. % of a polypropylene copolymer, and 50 ppm to 2000 ppm of an aryl amide containing clarifying agent, a phosphate ester salt containing clarifying agent, or a combination thereof. The polymeric composition can have a haze value of A after being extruded once and a haze value of B after being extruded 2 times, wherein the ratio of A to B is 1 to 1.35, wherein A is less than 25%, and wherein A and B are determined in accordance with ASTM D1003, at a thickness of about 40 mil.
Public/Granted literature
- US20240093015A1 CLEAR POLYPROPYLENE COMPOSITION FOR THERMOFORMING Public/Granted day:2024-03-21
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