Keycaps comprising furanoate polyesters
AssigneeYazaki Corporation
InventorsStefan Maat, Rajkiran Tiwari
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Abstract
The present invention relates to a keycap on top of a switching mechanism used as part of an integrated or peripheral keyboard or discrete switch. The keycap includes a polymer of butylene 2,5-furandicarboxylate (PBF), a polymer of butylene bifuranoate (PBBf), a copolymer of butylene 2,5-furandicarboxylate (BF) and butylene bifuranoate (BBf), a copolymer of ethylene 2,5-furandicarboxylate (EF) and one or both of BF and BBf, a copolymer of (i) butylene terephthalate (BT) and (ii) one or more of BF, BBf, and EF, or any combination thereof. The keycap is configured to mount on top of a switching mechanism of a key of a keyboard.
Claims20
A keycap comprising one or more materials selected from the group consisting of:
- a polymer of butylene 2,5-furandicarboxylate (PBF),
- a polymer of butylene bifuranoate (PBBf),
- a copolymer of (i) butylene 2,5-furandicarboxylate (BF) and (ii) butylene bifuranoate (BBf),
- a copolymer of (i) ethylene 2,5-furandicarboxylate (EF) and (ii) one or both of BF and BBf, and
- a copolymer of (i) butylene terephthalate (BT) and (ii) one or more of BF, BBf, and EF,
- wherein the keycap is configured to mount on top of a switching mechanism of a key of a keyboard.
A method of injection molding a keycap, the method comprising the steps of:
- obtaining one or more materials comprising:
- a polymer of butylene 2,5-furandicarboxylate (PBF),
- a polymer of butylene bifuranoate (PBBf),
- a copolymer of (i) butylene 2,5-furandicarboxylate (BF) and (ii) butylene bifuranoate (BBf),
- a copolymer of (i) ethylene 2,5-furandicarboxylate (EF) and (ii) one or both of BF and BBf,
- a copolymer of (i) butylene terephthalate (BT) and (ii) one or more of BF, BBf, and EF, or
- any combination thereof;
- heating the one or more materials to a molten state;
- and
- injecting the one or more materials into a mold to form the keycap.
Dependencies are inferred from the claim text.