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公开(公告)号：EP0438269B1
公开(公告)日：1996-03-13
申请号：EP91300290.3
申请日：1991-01-16
IPC分类号： G03G9/087
CPC分类号： G03G9/08793 , C08G18/4202 , C08L67/00 , G03G9/08755 , G03G9/08764
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公开(公告)号：EP0381896A3
公开(公告)日：1991-09-25
申请号：EP89313199.5
申请日：1989-12-18
IPC分类号： G03G9/087
CPC分类号： C08G18/4255 , G03G9/08764 , Y10S430/105
摘要： The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose gel fraction ranges from 2 to 75% by weight. The toner composition exhibits good melting properties upon heating suitable for fast reproduction such as a low lower limit of the fixing temperature and a wide range of permitted fixing temperature and is further excellent in resistance to blocking, resistance to carrier contamination and image-forming properties. The binder resin as the main component of the toner composition can be prepared according to a method comprising the step of continuously adding an isocyanate compound (B) to a polyester resin (A) in an equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (B) to that of OH groups of the polyester resin (A) ranging from 0.3 to 1.00 with kneading to react them, in a kneading means having a built-in screw.
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公开(公告)号：EP0438269A1
公开(公告)日：1991-07-24
申请号：EP91300290.3
申请日：1991-01-16
IPC分类号： G03G9/087
CPC分类号： G03G9/08793 , C08G18/4202 , C08L67/00 , G03G9/08755 , G03G9/08764
摘要： A toner composition for electrophotography comprises, as a principal component, a reaction product of a mixture which comprises 20 to 80% by weight of a polyester resin (A) whose number average molecular weight ranges from 1,000 to 5,000, whose glass transition point ranges from 0 to 50°C , whose OH value ranges from 20 to 60 KOHmg/g and which is prepared by using at least one trifunctional alcohol in an amount of from 2 to 10 mole% on the basis of the total amount of starting raw alcohols consisting of at least one diol and at least one trifunctional alcohol; and 80 to 20% by weight of a polyester resin (B) whose number average molecular weight ranges from 1,000 to 5,000, whose glass transition point ranges from 50 to 90°C and whose OH value is not more than 5 KOH mg/g, with a diisocyanate. The toner composition has hot-melt properties suitable for rapid copying, for instance, the lower limit of fixing temperature, thereof is low and the temperature range within which the toner can be fixed is very wide. Moreover, the toner composition is excellent in resistance to offset, antiblocking properties, resistance to ADF contamination, pulverization properties and quality of images. Thus, the toner composition shows practically excellent quality as a toner composition for ectrophotography.
摘要翻译： 用于电子照相术的调色剂组合物包含作为主要组分的混合物的反应产物，其包含20至80重量％的数均分子量为1,000至5,000的聚酯树脂（A），其玻璃化转变温度范围为 0至50℃，其OH值为20至60KOHmg / g，其通过使用至少一种二官能醇为2至10摩尔％，基于所组分的起始原料醇的总量 的至少一种二醇和至少一种三官能醇; 和80〜20重量％的数均分子量为1000〜5000的聚酯树脂（B），其玻璃化转变温度为50〜90℃，OH值不大于5KOHmg / g， 与二异氰酸酯。 调色剂组合物具有适合于快速复印的热熔性能，例如定影温度的下限，其低，调色剂固定的温度范围非常宽。 此外，调色剂组合物具有优异的耐偏移性，防粘连性，耐ADF污染，粉碎性能和图像质量。 因此，调色剂组合物显示出作为电摄影的调色剂组合物的实际优异的质量。
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公开(公告)号：EP0381896B1
公开(公告)日：1995-10-04
申请号：EP89313199.5
申请日：1989-12-18
IPC分类号： G03G9/087
CPC分类号： C08G18/4255 , G03G9/08764 , Y10S430/105
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公开(公告)号：EP0381896A2
公开(公告)日：1990-08-16
申请号：EP89313199.5
申请日：1989-12-18
IPC分类号： G03G9/087
CPC分类号： C08G18/4255 , G03G9/08764 , Y10S430/105
摘要： The present invention provides a toner composition mainly comprising a binder resin (D) which contains at least 20% by weight of an urethane-modified polyester resin (C) obtained by reacting a polyester resin (A) with an isocyanate compound (B) and whose gel fraction ranges from 2 to 75% by weight. The toner composition exhibits good melting properties upon heating suitable for fast reproduction such as a low lower limit of the fixing temperature and a wide range of permitted fixing temperature and is further excellent in resistance to blocking, resistance to carrier contamination and image-forming properties. The binder resin as the main component of the toner composition can be prepared according to a method comprising the step of continuously adding an isocyanate compound (B) to a polyester resin (A) in an equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (B) to that of OH groups of the polyester resin (A) ranging from 0.3 to 1.00 with kneading to react them, in a kneading means having a built-in screw.
摘要翻译： 本发明提供主要包含粘合剂树脂（D）的调色剂组合物，所述粘合剂树脂（D）包含至少20重量％的通过聚酯树脂（A）与异氰酸酯化合物（B）反应获得的氨基甲酸酯改性的聚酯树脂（C）和 其凝胶分数在2-75重量％的范围内。 该调色剂组合物在适于快速复制的加热下表现出良好的熔融性，例如定影温度的下限低和定影温度范围宽，并且抗结块性，耐载体污染性和成像性更加优异。 作为调色剂组合物的主要组分的粘合剂树脂可以按照包括以下当量比NCO / OH连续地向聚酯树脂（A）中加入异氰酸酯化合物（B）的步骤的方法来制备： 在具有内置螺杆的捏合装置中，异氰酸酯化合物（B）的NCO基团与聚酯树脂（A）的OH基团的NCO基团在0.3-1.00的范围内捏合反应。
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公开(公告)号：EP0375321A2
公开(公告)日：1990-06-27
申请号：EP89313202.7
申请日：1989-12-18
CPC分类号： C08G18/0895 , C08G18/4202 , G03G9/08755 , G03G9/08764
摘要： A toner composition for electrophotography which comprises, as a principal component, an urethane-modified polyester resin whose loss tangent (tan δ ) has a maximum and a minimum both falling within the range of from 0.7 to 2.5, the loss tangent being determined at 150°C and a frequency ranging from 10⁻² to 10 Hz, is herein disclosed. The toner composition has excellent low temperature fixing ability and offset resistance as well as a wide range of permitted fixing temperature. The urethane-modified polyester resin which is a principal component of the toner composition can be prepared by continuously feeding an isocyanate compound (C) to a mixture of a polyester resin (A) and a polyester resin (B) so that the equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (C) to the total amount of OH groups of the polyester resins (A) and (B) ranges from 0.3 to 1.99 with kneading, utilizing a means for kneading having a built-in screw.
摘要翻译： 一种用于电子照相的调色剂组合物，其包含作为主要组分的氨基甲酸酯改性聚酯树脂，其损耗角正切（tanδ）具有最大值和最小值，均在0.7至2.5的范围内，损耗角正切在150 ℃和10〜10Hz的频率。 调色剂组合物具有优异的低温定影能力和抗偏移性以及宽范围的允许定影温度。 作为调色剂组合物的主要成分的氨基甲酸酯改性聚酯树脂可以通过将异氰酸酯化合物（C）连续加入到聚酯树脂（A）和聚酯树脂（B）的混合物中来制备， NCO / OH，异氰酸酯化合物（C）的NCO基量与聚酯树脂（A）和（B）的OH基总量的量在0.3至1.99的范围内，通过捏合，使用捏合装置 内置螺丝。
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公开(公告)号：EP0375321B1
公开(公告)日：1995-06-21
申请号：EP89313202.7
申请日：1989-12-18
CPC分类号： C08G18/0895 , C08G18/4202 , G03G9/08755 , G03G9/08764
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公开(公告)号：EP0375321A3
公开(公告)日：1990-11-07
申请号：EP89313202.7
申请日：1989-12-18
CPC分类号： C08G18/0895 , C08G18/4202 , G03G9/08755 , G03G9/08764
摘要： A toner composition for electrophotography which comprises, as a principal component, an urethane-modified polyester resin whose loss tangent (tan δ ) has a maximum and a minimum both falling within the range of from 0.7 to 2.5, the loss tangent being determined at 150°C and a frequency ranging from 10⁻² to 10 Hz, is herein disclosed. The toner composition has excellent low temperature fixing ability and offset resistance as well as a wide range of permitted fixing temperature. The urethane-modified polyester resin which is a principal component of the toner composition can be prepared by continuously feeding an isocyanate compound (C) to a mixture of a polyester resin (A) and a polyester resin (B) so that the equivalent ratio, NCO/OH, of the amount of the NCO groups of the isocyanate compound (C) to the total amount of OH groups of the polyester resins (A) and (B) ranges from 0.3 to 1.99 with kneading, utilizing a means for kneading having a built-in screw.
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