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    • 6. 发明申请
    • THERMAL RECORDING MATERIAL WITH IMPROVED INITIAL CONTRAST
    • 热记录材料与改进的初步对比
    • US20150049152A1
    • 2015-02-19
    • US14458631
    • 2014-08-13
    • Rohm and Haas Company
    • Edward La FleurGaurav PranamiHimal Ray
    • B41M5/36B41J2/32
    • B41J2/32B32B27/20B41M5/1243B41M5/366Y10T428/254
    • The present invention provides a thermal recording material having a thermosensitive layer comprising single phase diffuser polymer particles. Each of the diffuser polymer particles has a refractive index at the center thereof (RIcenter) different from a refractive index at the surface thereof (RIsurface), and a continuous refractive index gradient, sometimes referred to as GRIN technology. The diffuser polymer particles may have a RIcenter of from 1.46 to 1.61 and a particle size of 0.85 to 15 microns. Additionally, the thermal recording material of the present invention may also include heat deformable particles and a binder.The present invention also provides a method for providing an image by subjecting selected portions of a recording material such as that described above to a physical agent selected from the group consisting of heat, pressure, and combinations thereof, sufficient to reduce the opacity of said selected portions.
    • 本发明提供一种具有包含单相扩散聚合物颗粒的热敏层的热敏记录材料。 每个扩散聚合物颗粒在其中心处的折射率(RIcenter)与其表面处的折射率(RIsurface)不同,并且连续折射率梯度有时称为GRIN技术。 扩散聚合物颗粒可以具有1.46至1.61的RI中心和0.85至15微米的粒度。 此外,本发明的热敏记录材料还可以包括热变形颗粒和粘合剂。 本发明还提供了一种用于通过将选自上述记录材料的选定部分从选自热,压力及其组合的物质中选出的部分,以充分降低所选择的不透明度 部分。
    • 7. 发明授权
    • Microcapsular coating composition containing a hydrophobic silica
    • 含有疏水性二氧化硅的微胶囊涂料组合物
    • US4398954A
    • 1983-08-16
    • US195910
    • 1980-10-10
    • John J. Stolfo
    • John J. Stolfo
    • B41M5/124C09D11/00B01J13/02
    • B41M5/1243Y10T428/2984
    • A novel coating composition is disclosed comprising oil-containing microcapsules dispersed in an aqueous continuous phase, which phase also contains finely divided silica particles and a binder for said microcapsules and said silica particles. The silica particles have been treated with an organic material such as an organic silicon compound to give the particles a hydrophobic surface. The coating composition has utility in the manufacture of paper coated with microcapsules. Such paper is characterized by a substantial reduction of specking when used in photocopying apparatus which utilizes a pressure nip to assist transfer of a powder image from a photoreceptor belt to the paper.In a preferred form, the oil contains a color precursor of the electron donating type and the aqueous composition contains stilt material such as starch particles. The coating composition is applied to paper to form a transfer coating on copy paper, said copy paper having utility in the production of multi-part forms.
    • 公开了一种新颖的涂料组合物,其包含分散在水性连续相中的含油微胶囊,该相还含有细碎的二氧化硅颗粒和用于所述微胶囊和所述二氧化硅颗粒的粘合剂。 二氧化硅颗粒已经用诸如有机硅化合物的有机材料处理,以使颗粒成为疏水性表面。 涂料组合物可用于制造涂有微胶囊的纸张。 这种纸的特征在于当用于复印设备中时,斑点的显着减少,其利用压力压区来辅助将粉末图像从感光带传送到纸张。 在优选的形式中,油含有供电型的着色前体,含水组合物含有淀粉颗粒等高锶材料。 将涂料组合物施加到纸上以在复印纸上形成转印涂层,所述复印纸可用于生产多部分形式。