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US 11,369,935 B2Granted
Hollow particles and use thereof
AssigneeSekisui Plastics Co., Ltd.
InventorsYugo Katayama, Tsuyoshi Saito, Haruhiko Matsuura, Atsushi Kotani, Momoka Noda
Life of this patent
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Abstract
Hollow particles having a shell including at least one layer, wherein the at least one layer contains a vinyl-based resin, and contains a phosphorus atom and/or a sulfur atom.
Claims11
Hollow particles comprising:
- a shell including at least one layer
- that contains a vinyl-based resin and a phosphorus atom,
- wherein the phosphorus atom is incorporated into only a part of the at least one layer,
- wherein the vinyl-based resin is a polymer obtained by crosslinking a polymer of a radical reactive monomer having at least an epoxy group or an oxetane group, with a crosslinkable monomer, and
- wherein said phosphorus atom exhibits a content of 0.2 to 5.00% by mass by fluorescent X-ray analysis.
2 more elements
Dependencies are inferred from the claim text.