Invention Grant
- Patent Title: Phosphonate polymers, copolymers, and their respective oligomers as flame retardants for polyester fibers
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Application No.: US15050365Application Date: 2016-02-22
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Publication No.: US10724154B2Publication Date: 2020-07-28
- Inventor: Marc-Andre Lebel , Lawino Kagumba , Pin Go
- Applicant: FRX POLYMERS, INC.
- Applicant Address: US MA Chelmsford
- Assignee: FRX POLYMERS, INC.
- Current Assignee: FRX POLYMERS, INC.
- Current Assignee Address: US MA Chelmsford
- Agency: Pepper Hamilton LLP
- Main IPC: C08L67/02
- IPC: C08L67/02 ; D01F6/92 ; A47G9/02 ; A47G9/10 ; D01F1/02 ; D01F1/07 ; D01F6/62 ; D03D15/12 ; D04H3/011 ; D06N7/00
Abstract:
The invention relates to the use of polyphosphonates, copoly(phosphonate ester)s, copoly(phosphonate carbonate)s, and their respective oligomers, as flame retardant additives for polyester fibers to impart fire resistance while maintaining or improving processing characteristics for melt spinning fibers.
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