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US 12,139,622 B2Granted
Hollow resin particles for thermosensitive recording media
AssigneeMatsumoto Yushi-Seiyaku Co., Ltd.
InventorsKoichi Sakabe, Katsushi Miki
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Abstract
Hollow resin particles for thermosensitive recording media containing a thermoplastic resin shell and a hollow part surrounded by the shell. The hollow resin particles contain a thermally-vaporizable hydrocarbon in an encapsulation ratio of at least 0.2 wt %. The hollow resin particles preferably have a mean volume particle size ranging from 0.1 to 10 μm.
Claims9
Hollow resin particles for thermosensitive recording media, the particles comprising a thermoplastic resin shell and a hollow part surrounded by the shell,
- wherein the hollow resin particles contain a thermally-vaporizable hydrocarbon in an encapsulation ratio of at least 0.2 wt %,
- a mean volume particle size of the hollow resin particles ranges from 0.1 to 10 μm,
- a hollow ratio of the hollow resin particles ranges from 71 to 95%, and
- a compression recovery rate of the hollow resin particles is at least 70%.
1 more element
Dependencies are inferred from the claim text.