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11 条记录 (耗时 0.018 秒)

    Continuous process for preparing resin particles in a liquid
    3.
    发明授权
    Continuous process for preparing resin particles in a liquid 失效
    在液体中制备树脂颗粒的连续方法

    公开(公告)号：US5017451A

    公开(公告)日：1991-05-21

    申请号：US440155

    申请日：1989-11-22

    申请人： James R. Larson ,  Kenneth W. Leffew

    发明人： James R. Larson ,  Kenneth W. Leffew

    IPC分类号： C08J3/09 ,  C08J3/16 ,  G03G9/12 ,  G03G9/135

    CPC分类号： G03G9/135 ,  G03G9/12

    摘要： A continuous process for the preparation of a dispersion of liquid and resin or polymer particles having at least one additive dispersed in the resin comprisingA. introducing an intimate blend of resin and at least one additive continuously into or blending the ingredients in an apparatus having means for melting the resin and dispersing the additive in the resin,B. melting the resin in the apparatus at an elevated temperature but below that at which the resin and/or additive decomposes,C. moving continuously the blend of melted resin and additive through at least one mixing element of the apparatus dispersing thoroughly the additive in the melted resin (molten blend),D. forming a dispersion by introducing into the molten blend while still in at least one mixing element a liquid in which the resin and additive(s) are substantially insoluble and thoroughly mixing molten blend in the in the liquid, the temperature in the at least one mixing element being maintained above the temperature at which the molten blend remains in its molten state, andE. introducing continuously the dispersion into a high shear cooling apparatus wherein the molten blend solidifies forming a stable dispersion of resin particles in the liquid. The process is useful for preparing resin particles in a liquid or electrostatic liquid developers more quickly and economically than by other processes, the resin or toner particles having controlled particle size.

    Process for pellet formation from amorphous polyester
    6.
    发明授权
    Process for pellet formation from amorphous polyester 失效
    由无定形聚酯形成颗粒的方法

    公开(公告)号：US5540868A

    公开(公告)日：1996-07-30

    申请号：US375873

    申请日：1995-01-20

    申请人： Jan M. Stouffer ,  Elwood N. Blanchard ,  Kenneth W. Leffew

    发明人： Jan M. Stouffer ,  Elwood N. Blanchard ,  Kenneth W. Leffew

    IPC分类号： C08G63/80 ,  C08G63/88 ,  C08J3/12 ,  C08G63/18 ,  B29C35/02

    CPC分类号： C08J3/12 ,  C08G63/80 ,  C08G63/88 ,  C08J2367/02

    摘要： The present invention relates to a process for forming robust, uniform, low molecular weight crystalline polyester particles. Such particles are useful for forming higher molecular weight polyesters, for example, by solid-state polymerization. Either conventionally-formed, essentially amorphous, non-molten polyester pellets at ambient temperatures or, alternatively, essentially amorphous molten polyester droplets, can be crystallized by rapidly subjecting the droplets or pellets to a thermal shock according to the process of the present invention.

    摘要翻译： 本发明涉及一种形成坚固，均匀，低分子量的结晶聚酯颗粒的方法。 这样的颗粒可用于形成较高分子量的聚酯，例如通过固相聚合。 根据本发明的方法，在环境温度下常规形成的，基本上无定形的非熔融聚酯颗粒或者基本上无定形的熔融聚酯液滴可以通过快速地对液滴或颗粒进行热冲击来结晶。

    Production of poly(ethylene terephthalate)
    9.
    发明授权
    Production of poly(ethylene terephthalate) 失效
    聚对苯二甲酸乙二醇酯的生产

    公开(公告)号：US5510454A

    公开(公告)日：1996-04-23

    申请号：US376600

    申请日：1995-01-20

    申请人： Jan M. Stouffer ,  Elwood N. Blanchard ,  Kenneth W. Leffew

    发明人： Jan M. Stouffer ,  Elwood N. Blanchard ,  Kenneth W. Leffew

    IPC分类号： C08G63/80 ,  C08G63/88 ,  C08G63/16

    CPC分类号： C08G63/88 ,  C08G63/80

    摘要： Disclosed herein is a novel crystalline form of low molecular weight poly(ethylene terephthalate). This crystalline form may be produced from molten or glassy low molecular weight poly(ethylene terephthalate) material by means of rapid heat transfer to or from the material. The poly(ethylene terephtalate) composition is suitable for use as a starting material for solid-state polymerization in order to produce polymers of higher molecular weight.

    摘要翻译： 本文公开了低分子量聚（对苯二甲酸乙二醇酯）的新型结晶形式。 该结晶形式可以由熔融或玻璃状的低分子量聚（对苯二甲酸乙二醇酯）材料通过快速热传递到材料或从材料中产生。 聚（对苯二甲酸乙二醇酯）组合物适合用作固态聚合的起始原料，以便制备较高分子量的聚合物。

    Method of producing a high solids replenishable liquid developer containing a friable toner resin
    10.
    发明授权
    Method of producing a high solids replenishable liquid developer containing a friable toner resin 失效
    制备含有易碎调色剂树脂的高固体可补充液体显影剂的方法

    公开(公告)号：US5206108A

    公开(公告)日：1993-04-27

    申请号：US812659

    申请日：1991-12-23

    申请人： Thomas C. Felder ,  Jill R. Lorey ,  Kenneth W. Leffew

    发明人： Thomas C. Felder ,  Jill R. Lorey ,  Kenneth W. Leffew

    IPC分类号： G03G9/12

    CPC分类号： G03G9/12

    摘要： A high solids replenishable electrostatic liquid developer concentrate contains toner particles formed from a friable thermoplastic resin The composition created can be concentrated up to 100% toner solids and subsequently sonicated to a working strength dilution. The composition may be formed by reducing the size of toner particles while they are mixed with a toner dispersant, and concentrating the resultant mixture.

    摘要翻译： 高固体可补充的静电液体显影剂浓缩物含有由易碎热塑性树脂形成的调色剂颗粒。产生的组合物可以浓缩至100％调色剂固体，随后超声处理至工作强度稀释。 可以通过在调色剂颗粒与调色剂分散剂混合的同时减小调色剂颗粒的尺寸并浓缩所得混合物来形成组合物。