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US 10,240,000 B2Granted
Aromatic polyimides suitable for 3D printing processes
AssigneesPolyOne Corporation, The Unted States of America as represented by The Administrator of the National Aeronautics and Space Administrations
InventorsRoger W. Avakian, Ling Hu, Chun-Hua Chuang
Life of this patent
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Abstract
Novel aromatic polyimides are disclosed with sufficient physical properties to be useful in 3D printing.
Claims14
An aromatic polyimide which is a
- reaction product of
- (1) 3,4′-oxydianiline (3,4′ ODA);
- (2) 4,4′-[1,3-phenylenebis(1-methyl-ethylidene)bisaniline (Bisaniline-M);
- (3) 2,3,3′,4′-biphenyldianhydride (a-BPDA);
- and
- (4) phthalic anhydride in a molar ratio of 0.9:0.1:0.975:0.05;
- wherein the reaction product is in a shape of a filament sufficiently ductile to form a loop of about 64 cm in circumference.
4 more elements
Dependencies are inferred from the claim text.