Invention Grant
- Patent Title: Polyacrylonitrile (PAN) polymers with low polydispersity index (PDI) and carbon fibers made therefrom
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Application No.: US16257908Application Date: 2019-01-25
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Publication No.: US10647844B2Publication Date: 2020-05-12
- Inventor: Longgui Tang , Alan D. Thomas , Billy D. Harmon
- Applicant: Cytec Industries Inc.
- Applicant Address: US NJ Princeton
- Assignee: Cytec Industries Inc.
- Current Assignee: Cytec Industries Inc.
- Current Assignee Address: US NJ Princeton
- Agent Thi Dang
- Main IPC: C08L33/20
- IPC: C08L33/20 ; C08F120/44 ; B29C48/00 ; C08F2/06 ; C08F2/38 ; C08F220/44 ; C08F6/00 ; B29C71/02 ; D01F9/22 ; B29D99/00 ; B29K55/00 ; B29L31/00 ; D01D5/06 ; B82Y40/00
Abstract:
A method for synthesizing polyacrylonitrile (PAN) polymer with a narrow molecular weight distribution is disclosed. The preferred PAN polymer has a PDI (Mw/Mn) of about 2 or less. Such PAN polymer is synthesized by controlled/living radical polymerization using a special RAFT (Reversible Addition-Fragmentation Chain Transfer) agent. Also disclosed is a method for producing carbon fibers from PAN polymer with low PDI.
Public/Granted literature
- US20190153211A1 POLYACRYLONITRILE (PAN) POLYMERS WITH LOW POLYDISPERSITY INDEX (PDI) AND CARBON FIBERS MADE THEREFROM Public/Granted day:2019-05-23
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