公开(公告)号：US20240190816A1

公开(公告)日：2024-06-13

申请号：US18585198

申请日：2024-02-23

申请人： SANKO CO., LTD.

发明人： Ryoichi Kinishi ,  Yoshimi Ishibashi

IPC分类号： C07C309/76 ,  B41M5/323 ,  C07C303/28 ,  C07C303/30

CPC分类号： C07C309/76 ,  B41M5/323 ,  C07C303/28 ,  C07C303/30

摘要： The present invention relates to an N,N′-diarylurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N′-diarylurea derivative represented by the following general formula (1):




(wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and Al is a hydrogen atom or an alkyl group).

公开(公告)号：US11945769B2

公开(公告)日：2024-04-02

申请号：US16641811

申请日：2018-08-10

申请人： SANKO CO., LTD.

发明人： Ryoichi Kinishi ,  Yoshimi Ishibashi

IPC分类号： B41M5/20 ,  B41M5/24 ,  B41M5/323 ,  C07C303/28 ,  C07C303/30 ,  C07C309/76

CPC分类号： C07C309/76 ,  B41M5/323 ,  C07C303/28 ,  C07C303/30

摘要： The present invention relates to an N,N′-diurea derivative represented by the following general formula (1) and a method for producing the same. In addition, the present invention relates to a thermosensitive recording material in which a thermosensitive recording layer including a basic dye which is colorless or lightly colored at room temperature and a developer capable of developing color upon contact with the basic dye by heating is provided on a base sheet, wherein the developer is the N,N′-diurea derivative represented by the following general formula (1):






(wherein R2 is an alkyl group, an aralkyl group, or an aryl group; and A1 is a hydrogen atom or an alkyl group).

公开(公告)号：US10086634B2

公开(公告)日：2018-10-02

申请号：US15742067

申请日：2016-09-13

申请人： SANKO CO., LTD.

发明人： Yoshimi Ishibashi ,  Ryoichi Kinishi ,  Yoshito Nakagawa

IPC分类号： B41M5/333 ,  C07C237/40 ,  C07C311/19 ,  C07C275/42 ,  C07C311/51 ,  C07C323/59

摘要： A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m . . . (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR″ group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.)

公开(公告)号：US20180194151A1

公开(公告)日：2018-07-12

申请号：US15742067

申请日：2016-09-13

申请人： SANKO CO., LTD.

发明人： Yoshimi Ishibashi ,  Ryoichi Kinishi ,  Yoshito Nakagawa

IPC分类号： B41M5/333 ,  C07C237/40 ,  C07C323/59 ,  C07C275/42 ,  C07C311/51 ,  C07C311/19

CPC分类号： B41M5/3333 ,  B41M5/333 ,  C07C237/40 ,  C07C275/28 ,  C07C275/42 ,  C07C311/19 ,  C07C311/42 ,  C07C311/51 ,  C07C311/58 ,  C07C323/59 ,  C07C335/16

摘要： A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m  (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR″ group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.)