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公开(公告)号：US4798778A
公开(公告)日：1989-01-17
申请号：US80669
申请日：1987-08-03
CPC分类号： G03G9/131
摘要： A positive-working liquid electrostatic developer consisting essentially of(A) nonpolar liquid having a Kauri-butanol value of less than 30, present in major amount;(B) thermoplastic resin of an ethylene homopolymer or copolymer of ethylene and at least one other monomer, the resin having as a substituent thereon an ester, ester having substitutents, e.g., hydroxyl, carboxyl, amine, alkyl; an amide, amide having substituents, e.g., hydroxyl, carboxyl, amine, alkyl; or acid halide of a carboxylic acid, the resin being in particulate form having an average particle size by area of less than 10 .mu.m; and(C) nonpolar liquid soluble ionic or zwitterionic compound.Several procedures can be used to prepare the developer, e.g., using toner concentrate, modifying a thermoplastic resin before developer is prepared. Pigments and adjuvants can be present in the developer which is useful in copying, making proofs including digital proofs, lithographic printing plates and resists.
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公开(公告)号：US5026427A
公开(公告)日：1991-06-25
申请号：US256809
申请日：1988-10-12
CPC分类号： C09D11/322 , B01F13/1027 , B01F3/1207 , B01F2003/125 , B01F2215/0059 , B01F5/02
摘要： In accordance with this invention there is provided a process for the preparation of pigmented ink jet inks comprising:(a) mixing at least one pigment and at least one pigment dispersant in a dispersant medium to form a pigmented ink mixture wherein pigment is present in an amount up to 60% by weight based on the total weight of the mixture;(b) deflocculating the pigmented ink mixture by passing the pigmented ink mixture through at least a plurality of nozzles within a liquid jet interaction chamber at a liquid pressure of at least 1,000 psi to produce a substantially uniform dispersion of pigment particles in the dispersant medium.
摘要翻译： 根据本发明，提供了一种制备着色喷墨油墨的方法，其包括：（a）在分散介质中混合至少一种颜料和至少一种颜料分散剂以形成着色油墨混合物，其中颜料存在于 基于混合物的总重量可达60重量％ （b）通过使着色的油墨混合物通过液体喷射相互作用室内的至少多个喷嘴在至少1,000psi的液体压力下使颜料混合物反絮凝，以产生颜料颗粒在分散介质中的基本上均匀的分散体。
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公开(公告)号：US4959283A
公开(公告)日：1990-09-25
申请号：US380933
申请日：1989-07-14
CPC分类号： G03F7/027 , G03F7/001 , G03H1/18 , G03H1/24 , G03H1/182 , G03H2001/186 , G03H2250/44 , G03H2260/12 , Y10S430/113
摘要： Wavelength response of volume holograms is altered by contact with a dry film diffusion element.
摘要翻译： 通过与干膜扩散元件的接触改变体积全息图的波长响应。
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4.发明授权Organic sulfur-containing compounds as adjuvants for positive electrostatic liquid developers 失效有机含硫化合物作为正静电液体显影剂的佐剂
公开(公告)号：US4917985A
公开(公告)日：1990-04-17
申请号：US292291
申请日：1988-12-30
申请人： Lyla M. El-Sayed , Torence J. Trout
发明人： Lyla M. El-Sayed , Torence J. Trout
CPC分类号： G03G9/1355 , G03G9/135
摘要： Positive electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) thermoplastic resin particles having an organic sulfur-containing compound which is substantially insoluble in the nonpolar liquid at ambient temperatures, as defined dispersed therein and average particle size by area being less than 10 .mu.m, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound. Optionally a colorant and charge adjuvant are present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
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公开(公告)号：US4794066A
公开(公告)日：1988-12-27
申请号：US116657
申请日：1987-11-04
申请人： Arthur J. Taggi , Torence J. Trout
发明人： Arthur J. Taggi , Torence J. Trout
CPC分类号： G03G9/12
摘要： Improved liquid electrostatic developer containing electrostatic toner particles is prepared by a process wherein an aqueous, e.g., water-wet pigment cake is flushed with a water insoluble vehicle, water is removed, and the developer is formed from the flushed pigment dispersion, thermoplastic resin, dispersant nonpolar liquid having a Kauri-butanol value of less than 30, in a vessel at elevated temperature under high shear, and the dispersion is cooled. The liquid electrostatic developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
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6.发明授权Mineral acids as charge adjuvants for positive liquid electrostatic developers 失效矿物酸作为阳性液体静电显影剂的电荷佐剂
公开(公告)号：US5034299A
公开(公告)日：1991-07-23
申请号：US522277
申请日：1990-05-11
CPC分类号： G03G9/135
摘要： A positive charged electrostatic liquid developer consisting essentially of(A) a non-polar liquid having a Kauri-butanol value of less than 30,(B) thermoplastic resin particles, average by area particle size of less than 10 .mu.m,(C) a charge director compound, and(D) at least one inorganic acid having a solubility of at least 0.5% based on the weight of charge director compound in a mixture of (A) and (C) and represented by the formula:H.sub.x Y wherein x is an integer from 1-4 and is equal to the negative charge on the anion,Y is a moiety selected from the group consisting of Cl.sup.-, F.sup.-, NO.sub.3.sup.-, NO.sub.2.sup.-, PO.sub.4.sup.-3, SO.sub.4.sup.-2, SO.sub.3.sup.-2, ClO.sub.4.sup.-, and IO.sub.4.sup.-.The liquid developer is useful in copying, color proofing, digital color proofing, making lithographic printing plates, and resists.
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公开(公告)号：US4985329A
公开(公告)日：1991-01-15
申请号：US292573
申请日：1988-12-30
IPC分类号： G03G9/12
CPC分类号： G03G9/12
摘要： Bipolar liquid electrostatic developer consisting essentially of at least one charge director in a nonpolar liquid having dispersed therein two toner particles having opposite charge polarity which comprise at least one thermoplastic copolymer resin. The particle average by area size is less than 10 .mu.m. The ratio of the two toner particles is 5 to 95 and 95 to 5. A process of simultaneous transfer of such developer is included. The developer is useful in copying.
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8.发明授权Metal alkoxide modified resins for negative-working electrostatic liquid developers 失效用于负性静电液体显影剂的金属醇盐改性树脂
公开(公告)号：US4971883A
公开(公告)日：1990-11-20
申请号：US412327
申请日：1989-09-25
申请人： Dominic M. Chan , Torence J. Trout
发明人： Dominic M. Chan , Torence J. Trout
摘要： Negative-working electrostatic liquid developer consisting essentially of(A) nonpolar liquid having Kauri-butanol value less than 30, present in major amount,(B) particles, average by area particle size of less than 10 .mu.m, of a polymer prepared from the reaction product of polymeric resin having free carboxyl groups and a metal alkoxide as defined, and(C) nonpolar liquid soluble ionic or zwitterionic charge director compound.Optionally a colorant and an adjuvant compound are present. Process of preparation of electrostatic liquid developers is described. The developer is useful in copying, making proofs including digital color proofs, Lithographic printing plates, and resists.
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公开(公告)号：US4935328A
公开(公告)日：1990-06-19
申请号：US178962
申请日：1988-04-07
CPC分类号： G03G9/135 , Y10S430/105 , Y10S524/901
摘要： Electrostatic liquid developer having improved negative charging characteristics consisting essentially of(A) nonpolar liquid having a Kauri-butanol value of less than 30, present in a major amount,(B) thermoplastic resin particles having an average by area particle size of less than 10 .mu.m,(C) charge director compound, and(D) at least one soluble solid or liquid organic monofunctional amine compound of the formula: R.sub.n NH.sub.3-n wherein R is alkyl, cycloalkyl or alkylene, or substituted alkyl, the alkyl, cycloalkyl, alkylene or substituted alkyl group being of 1 to 50 carbon atoms, and n is an integer of 1 to 3.Optionally, a colorant, e.g., a pigment; metallic soap, adjuvant can be present. The electrostatic liquid developer is useful in copying, making proofs including digital color proofs, lithographic printing plates, and resists.
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公开(公告)号：US4783389A
公开(公告)日：1988-11-08
申请号：US30993
申请日：1987-03-27
申请人： Torence J. Trout , James R. Larson
发明人： Torence J. Trout , James R. Larson
IPC分类号： G03G9/12
CPC分类号： G03G9/12
摘要： Process for the preparation of toner particles for liquid electrostatic imaging comprising(A) mixing a thermoplastic resin and a nonpolar liquid at a temperature sufficient to plasticize and liquify the resin and below that at which the nonpolar liquid boils and the resin decomposes,(B) cooling the mixture to form resin particles in the nonpolar liquid,(C) reducing the size of the resin particles to below about 30 .mu.m by passing the product of step (B) through at least one liquid jet interaction chamber at a liquid pressure of at least 1000 p.s.i., e.g., a Microfluidizer.RTM..The process produces liquid electrostatic developer quicker than other known processes, the developer being useful in copying, making proofs, including digital proofs, etc.
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