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公开(公告)号：EP4190835A1
公开(公告)日：2023-06-07
申请号：EP21850150.0
申请日：2021-07-30
发明人： AOYAMA, Takehiko , YOKOYAMA, Masanori , INOUE, Syoji , YAMAMOTO, Arihiro , MATSUDA, Hidekazu , SEGAWA, Shota
摘要： A wiper blade for a vehicle, the wiper blade comprising: a blade support section; and a lip section, wherein the lip section has a tapering portion having a cross-section that is taken along a direction perpendicular to the longitudinal direction of the wiper blade and that has a width that gradually becomes less from a side closer to the blade support section in a direction away from the blade support section, the lip section has a tip surface and first and second taper surfaces constituting the tapering portion, and, in a specific observation region of the first and second taper surfaces, the average value of the elastic modulus measured at an interval of 0.1 µm is 15-470 MPa and the coefficient of variation of the elastic modulus is at most 17.6%.
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2.发明公开
公开(公告)号：EP4071555A1
公开(公告)日：2022-10-12
申请号：EP20897330.5
申请日：2020-12-02
发明人： YAMAMOTO, Arihiro , INOUE, Syoji , WATANABE, Masahiro , UCHIDA, Toshirou , IKEDA, Youhei , YOKOYAMA, Masanori , KATO, Hisao , SUDO, Saki , KAWAKAMI, Tomoya , KIMURA, Masaaki
摘要： The present invention is aimed at providing an electrophotographic cleaning blade that has excellent chipping resistance and can exhibit excellent cleaning performance. This cleaning blade is provided with an elastic member that comprises a polyurethane and a support member that supports the elastic member, and cleans the surface of a member to be cleaned, by bringing a part of the elastic member into contact with the surface of the member to be cleaned that is moving. The average value of the elastic modulus of the elastic member obtained when measured using SPM is at least 15 MPa and not more than 470 MPa, and the coefficient of variation thereof is not more than 6.0%.
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公开(公告)号：EP4190834A1
公开(公告)日：2023-06-07
申请号：EP21850856.2
申请日：2021-07-30
发明人： SEGAWA, Shota , AOYAMA, Takehiko , YOKOYAMA, Masanori , MATSUDA, Hidekazu , INOUE, Syoji , YAMAMOTO, Arihiro , IKEDA, Youhei
摘要： Provided is a wiper blade for vehicle is provided capable of exhibiting excellent wipability.
The wiper blade for vehicle brings a part of the lip part into contact with a surface of the to-be-cleaned member, and cleans the surface thereof, the polyurethane of the lip part comprises a reactant of a composition including an isocyanate compound which includes diisocyanate and tri- or higher functional polyfunctional isocyanate, and an alcohol which includes tri- or higher functional polyfunctional alcohol, the diisocyanate has an aromatic ring in a molecule, when M1 represents a detected amount of all ions, M2 represents tri- or higher functional polyfunctional isocyanate, and M3 represents diisocyanate, M2/M1 is 0.001 to 0.028, M3/M1 is 0.020 to 0.110, and M2/M3 is 0.013 to 0.300, and a concentration of the tri or higher functional polyfunctional alcohol in the polyurethane is 0.12 mmol/g to 0.65 mmol/g.-
公开(公告)号：EP4190217A1
公开(公告)日：2023-06-07
申请号：EP21848587.8
申请日：2021-07-30
发明人： SEGAWA, Shota , AOYAMA, Takehiko , YOKOYAMA, Masanori , MATSUDA, Hidekazu , INOUE, Syoji , YAMAMOTO, Arihiro
摘要： Provided a cleaning wiper blade capable of exhibiting excellent wipability with respect to the to-be-cleaned surface even with a weak pressing force, the cleaning blade comprises a grip part and an elastic part comprising a polyurethane, the polyurethane comprises a reactant of a composition including an isocyanate compound which includes diisocyanate and polyfunctional isocyanate, and an alcohol which includes polyfunctional alcohol, the diisocyanate has an aromatic ring in a molecule, when M1 represents a detected amount of all ions, M2 represents tri- or higher functional polyfunctional isocyanate, and M3 represents diisocyanate, M2/M1 is 0.001 to 0.028, M3/M1 is 0.020 to 0.110, and M2/M3 is 0.013 to 0.300, and a concentration of the tri or higher functional polyfunctional alcohol in the polyurethane is 0.12 mmol/g to 0.65 mmol/g.
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公开(公告)号：EP4190216A1
公开(公告)日：2023-06-07
申请号：EP21850855.4
申请日：2021-07-30
发明人： AOYAMA, Takehiko , MATSUDA, Hidekazu , INOUE, Syoji , YAMAMOTO, Arihiro , YOKOYAMA, Masanori , SEGAWA, Shota
摘要： A wiper blade for cleaning comprises a grip part to be grasped with the hand, and an elastic part to be pressed against a surface being cleaned, the elastic part being supported by the grip part, wherein the elastic part has, on a tip-end side, a principal surface which is to face a member being cleaned, and a tip-end surface which forms a tip-end-side edge together with the principal surface, and in a specific observation region of the tip-end surface and the principal surface, the average value of elastic modulus values obtained through measurement at a 0.1 µm pitch is from 15 MPa to 470 MPa, and the coefficient of variation of the elastic modulus is 17.6% or less.
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