| 发明名称 | Copolymer, aqueous ink, and ink cartridge | ||
| 摘要 | A copolymer includes structural units having the following formulae (1) and (2):; wherein each of R1 and R2 independently represents a hydrogen atom or a methyl group; X represents a hydrogen atom or a cationic ion; and L represents a single bond or —(CH2)n—O—, the oxygen atom of which is bonded with the biphenyl; and n represents an integer of from 2 to 18. | ||
| 申请公布号 | US9365670(B2) | 申请公布日期 | 2016.06.14 |
| 申请号 | US201514852724 | 申请日期 | 2015.09.14 |
| 申请人 | Ricoh Company, Ltd. | 发明人 | Harada Shigeyuki;Yanagawa Yoshiki;Katoh Keita;Fukuoka Masayuki;Nagai Kazukiyo;Koizuka Yuusuke;Shimada Tomoyuki;Sabu Akiyoshi |
| 分类号 | C09D11/30;C08F222/10;C09D133/14 | 主分类号 | C09D11/30 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P |
| 主权项 | 1. A copolymer, comprising structural units having the following formulae (1) and (2): wherein each of R1 and R2 independently represents a hydrogen atom or a methyl group; X represents a hydrogen atom or a cationic ion; and L represents a single bond or —(CH2)n—O—, the oxygen atom of which is bonded with the biphenyl; and n represents an integer of from 2 to 18. | ||
| 地址 | Tokyo JP | ||