Invention Grant
- Patent Title: Curative composition and a resin composition containing the curative composition
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Application No.: US16769762Application Date: 2018-12-20
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Publication No.: US11702516B2Publication Date: 2023-07-18
- Inventor: David Allan Tilbrook , Christopher Robert Mason , Martin Richard Simmons
- Applicant: HEXCEL COMPOSITES LIMITED
- Applicant Address: GB Duxford
- Assignee: HEXCEL COMPOSITES LIMITED
- Current Assignee: HEXCEL COMPOSITES LIMITED
- Current Assignee Address: GB Duxford
- Agent W. Mark Bielawski
- Priority: GB 21593 2017.12.21
- International Application: PCT/EP2018/086445 2018.12.20
- International Announcement: WO2019/122272A 2019.06.27
- Date entered country: 2020-06-04
- Main IPC: C08J3/24
- IPC: C08J3/24 ; C08G59/50 ; C08K9/10 ; C08L63/00 ; C08J5/24 ; C08K5/3445 ; C08K5/13 ; C08K5/09

Abstract:
This invention relates to a curative composition and its use in curing epoxy resins and prepregs, adhesives and moulded materials derived therefrom. The curative composition comprises a clathrate comprising a host component and a guest component, the host comprising a carboxylic acid or ester compounds as defined or phenolphthalin and the guest comprising an imidazole or imidazoline component.
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