Invention Application
- Patent Title: ANISOTROPIC COPOLY(IMIDE OXETANE) COATINGS AND ARTICLES OF MANUFACTURE, COPOLY(IMIDE OXETANE)S CONTAINING PENDANT FLUOROCARBON MOIETIES, OLIGOMERS AND PROCESSES THEREFOR
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Application No.: US16854265Application Date: 2020-04-21
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Publication No.: US20200247770A1Publication Date: 2020-08-06
- Inventor: Christopher J. Wohl, JR. , John W. Connell , Emilie J. Siochi , Joseph G. Smith, JR.
- Applicant: United States of America as represented by the Administrator of NASA
- Main IPC: C07D305/08
- IPC: C07D305/08 ; C08G65/333 ; C08G65/322 ; C08G65/18 ; C08G73/10 ; C09D179/08

Abstract:
Copoly(imide oxetane) materials are disclosed that can exhibit a low surface energy while possessing the mechanical, thermal, chemical and optical properties associated with polyimides. The copoly(imide oxetane)s are prepared using a minor amount of fluorinated oxetane-derived oligomer with sufficient fluorine-containing segments of the copoly(imide oxetane)s migrate to the exterior surface of the polymeric material to yield low surface energies. Thus the coatings and articles of manufacture made with the copoly(imide oxetane)s of this invention are characterized as having an anisotropic fluorine composition. The low surface energies can be achieved with very low content of fluorinated oxetane-derived oligomer. The copolymers of this invention can enhance the viability of polyimides for many applications and may be acceptable where homopolyimide materials have been unacceptable.
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