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US 12,630,712 B2Granted
Thermoplastic compositions including blends of polyether ether ketone and polyetherimide
AssigneeShpp Global Technologies B.V.
InventorsWeibing Teng, Hao Zhou
Life of this patent
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Abstract
Thermoplastic compositions include: from about 50 wt % to about 70 wt % of a PEEK (polyether ether ketone) component; from about 5 wt % to about 20 wt % of a PEI (polyetherimide) component; and from about 20 wt % to about 40 wt % of a glass fiber component. The combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the composition. Methods for forming a molded article including the thermoplastic composition are described.
Claims14
A thermoplastic composition consisting of:
- from about 50 wt % to about 70 wt % of a PEEK (polyether ether ketone) homopolymer;
- from about 5 wt % to about 20 wt % of a PEI (polyetherimide) homopolymer;
- and
- from about 20 wt % to about 40 wt % glass fiber,
- wherein a rectangular sample of the composition injection molded into a mold having a length of 8 in (inches), a width of 6 in, and a thickness of 3.2 mm (millimeters) exhibits a shrinkage of less than 0.5% in length and less than 0.5% in width at 23° C., and
- wherein the combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the composition.
3 more elements
A method for forming a molded article, consisting of:
- combining, to form a mixture, (a) from about 50 wt % to about 70 wt % of a PEEK (polyether ether ketone) homopolymer, (b) from about 5 wt % to about 20 wt % of a PEI (polyetherimide) homopolymer, and (c) from about 20 wt % to about 40 wt % glass fiber;
- and
- molding the mixture to form the molded article,
- wherein a rectangular molded sample of the mixture that is injection molded into a mold having a length of 8 in (inches), a width of 6 in, and a thickness of 3.2 mm (millimeters) exhibits a shrinkage of less than 0.5% in length and less than 0.5% in width at 23° C., and
- wherein the combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the article.
2 more elements
Dependencies are inferred from the claim text.