Propylene-based block copolymers and polymer compositions

JP7880674B2Active Publication Date: 2026-06-26MITSUBISHI CHEM CORP
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Patent Information

Application Number
JP2022090744
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-06-03
Publication Date
2026-06-26
Estimated Expiration
2042-06-03

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Abstract

To provide a propylene block copolymer that can yield a molding with superior surface properties such as fouling prevention and low friction, and a polymer composition including the same and a molding thereof.SOLUTION: A propylene block copolymer includes a structural unit wherein a block predominantly composed of a propylene unit and a block predominantly composed of a siloxane unit form Si-C bonds. For example, the number of siloxane units is 50 or more and 300 or less for every 1000 propylene units.SELECTED DRAWING: None
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Citation Information

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