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    • 4. 发明授权
    • Aqueous suspension polymerization process
    • 水悬浮聚合法
    • US4558108A
    • 1985-12-10
    • US658719
    • 1984-10-09
    • Lupu AlexandruPeter G. Odell
    • Lupu AlexandruPeter G. Odell
    • C08F2/18C08F212/08G03G9/08
    • C08F2/18C08F212/08G03G9/08
    • A process for forming a copolymer of styrene and butadiene is disclosed including providing an aqueous phase comprising an aqueous mixture comprising water, styrene monomer, butadiene monomer, a suspension stabilizing agent, and a chain propogating amount of one or more free radical polymerization initiators, the ratio of the styrene monomer and the butadiene monomer being between about 80:20 and about 95:5 by weight, the weight proportion of water to the combination of styrene monomer and butadiene monomer being between about 0.8:1 and about 2:1 and a vapor phase comprising an inert gas and butadiene monomer, heating the aqueous phase and the vapor phase to a temperature between about 50.degree. C. and about 130.degree. C. at a pressure between about 20 psi and about 140 psi, removing butadiene monomer from the vapor phase after at least about 75 percent by weight of the butadiene monomer and the styrene monomer in the aqueous phase are converted to a copolymer and prior to conversion of more than about 98 percent by weight of the butadiene monomer and the styrene monomer to a copolymer in the aqueous phase, and heating the aqueous phase at a temperature between about 50.degree. C. and about 130.degree. C. at a pressure between about 20 psi and about 140 psi until at least about 90 percent by weight of the styrene monomer and butadiene monomer are copolymerized to form an aqueous suspension of discrete copolymer particles.
    • 公开了一种形成苯乙烯和丁二烯的共聚物的方法,其包括提供含有水,苯乙烯单体,丁二烯单体,悬浮稳定剂和链传递量的一种或多种自由基聚合引发剂的水性混合物的水相, 苯乙烯单体和丁二烯单体的重量比在约80:20至约95:5之间,水与苯乙烯单体和丁二烯单体的组合的重量比例在约0.8:1和约2:1之间,和 蒸汽相包含惰性气体和丁二烯单体,在约20psi至约140psi之间的压力下将水相和气相加热至约50℃至约130℃之间的温度,从而将丁二烯单体从 至少约75重量%的丁二烯单体和水相中的苯乙烯单体之间的气相转化为共聚物,并且在更多的转化之前 约98重量%的丁二烯单体和苯乙烯单体与水相中的共聚物反应,并在约50psi至约130℃的温度下在约20psi至约130psi的压力下加热该水相, 约140psi,直到至少约90重量%的苯乙烯单体和丁二烯单体共聚以形成离散共聚物颗粒的水悬浮液。
    • 8. 发明授权
    • Bead suspension polymerization process
    • 珠悬浮聚合工艺
    • US5274057A
    • 1993-12-28
    • US812082
    • 1991-12-23
    • Michael K. GeorgesRobert D. BayleyLupu Alexandru
    • Michael K. GeorgesRobert D. BayleyLupu Alexandru
    • C08F2/20C08F236/10
    • C08F2/20C08F236/10
    • An improved process for producing resin particles by a bead suspension polymerization reaction, and a polymer formed by the process wherein the process comprises: providing a liquid reaction medium suitable for conducting the polymerization; forming a suspension agent system in the reaction medium by an in situ interaction of at least two components in the reaction medium, for example, certain water soluble metal halides and polyvinylacetate derived polymers; adding at least one polymerizable monomer compound to the resulting reaction medium having the suspension agent system dispersed therein; and effecting polymerization of the monomer in the reaction medium to form low ash content beads of the polymer.A second embodiment comprises conducting a bead suspension polymerization process utilizing the suspension agent system formed in situ to limit the amount of fine particles of less than about 100 microns produced during the process comprising: providing a reaction medium suitable for conducting the polymerization in the reaction system; utilizing a suspension agent system which is appropriate for forming polymer beads having a desired size and for minimizing fine particle formation; adding at least one polymerizable monomer compound to the resulting reaction medium having the suspension agent system dispersed therein; effecting polymerization of the monomer in the reaction medium to form the beads of the polymer; and separating resin particles from the reaction followed by optional washing and drying.
    • 通过珠粒悬浮聚合反应制备树脂颗粒的改进方法和通过该方法形成的聚合物,其中所述方法包括:提供适于进行聚合的液体反应介质; 在反应介质中通过反应介质中至少两种组分的原位相互作用形成悬浮剂体系,例如某些水溶性金属卤化物和聚乙酸乙烯酯衍生的聚合物; 向其中分散有悬浮剂体系的所得反应介质中加入至少一种可聚合单体化合物; 并且在反应介质中进行单体的聚合以形成聚合物的低灰分珠粒。 第二实施方案包括使用原位形成的悬浮剂体系进行珠粒悬浮聚合方法,以限制在该方法期间产生的小于约100微米的细颗粒的量,其包括:提供适于在反应体系中进行聚合的反应介质 ; 利用适于形成具有所需尺寸的聚合物珠粒并用于最小化细颗粒形成的悬浮剂体系; 向其中分散有悬浮剂体系的所得反应介质中加入至少一种可聚合单体化合物; 在反应介质中进行单体的聚合以形成聚合物的珠粒; 并从反应中分离树脂颗粒,然后任选地洗涤和干燥。
    • 9. 发明授权
    • Hot melt ink compositions
    • 热熔油墨组合物
    • US5122187A
    • 1992-06-16
    • US641844
    • 1991-01-17
    • William M. SchwarzRobert H. MarchessaultLupu AlexandruBernard Henrissat
    • William M. SchwarzRobert H. MarchessaultLupu AlexandruBernard Henrissat
    • C09D11/00
    • C09D11/34
    • Disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a binder, and a propellant selected from the group consisting of hydrazine; cyclic amines; ureas; carboxylic acids; sulfonic acids; aldehydes; ketones; hydrocarbons; esters; phenols; amides; imides; halocarbons; urethanes; ethers; sulfones; sulfamides; sulfonamides; phosphites; phosphonates; phosphates; alkyl sulfides; alkyl acetates; and sulfur dioxide. Also disclosed are hot melt ink compositions suitable for ink jet printing which comprise a colorant, a propellant, and a binder selected from the group consisting of rosin esters; polyamides; dimer acid amides; fatty acid amides; epoxy resins; fluid paraffin waxes; fluid microcrystalline waxes; Fischer-Tropsch waxes; polyvinyl alcohol resins; polyols; cellulose esters; cellulose ethers; polyvinyl pyridine resins; fatty acids; fatty acid esters; poly sulfonamides; benzoate esters; long chain alcohols; phthalate plasticizers; citrate plasticizers; maleate plasticizers; sulfones; polyvinyl pyrrolidinone copolymers; polyvinyl pyrrolidone/polyvinyl acetate copolymers; novalac resins; natural product waxes; mixtures of linear primary alcohols and linear long chain amides; and mixtures of linear primary alcohols and fatty acid amides. In one embodiment, the binder comprises a liquid crystalline material.
    • 公开了适用于喷墨印刷的热熔油墨组合物,其包含着色剂,粘合剂和选自肼的推进剂; 环胺; 尿素 羧酸; 磺酸; 醛 酮类 碳氢化合物 酯类 酚类 酰胺 酰亚胺 卤代烃; 聚氨酯; 醚类 砜; 磺酰胺; 磺胺类 亚磷酸酯 膦酸盐 磷酸盐 烷基硫化物; 烷基乙酸酯; 和二氧化硫。 还公开了适用于喷墨印刷的热熔油墨组合物,其包含着色剂,推进剂和选自松香酯的粘合剂; 聚酰胺 二聚酸酰胺; 脂肪酸酰胺; 环氧树脂; 流体石蜡; 流体微晶蜡; 费托蜡 聚乙烯醇树脂; 多元醇; 纤维素酯; 纤维素醚; 聚乙烯吡啶树脂; 脂肪酸; 脂肪酸酯; 聚磺酰胺; 苯甲酸酯; 长链醇; 邻苯二甲酸酯增塑剂; 柠檬酸增塑剂; 马来酸增塑剂; 砜; 聚乙烯吡咯烷酮共聚物; 聚乙烯吡咯烷酮/聚乙酸乙烯酯共聚物; 诺瓦克树脂; 天然产品蜡; 线性伯醇和线性长链酰胺的混合物; 和直链伯醇和脂肪酸酰胺的混合物。 在一个实施方案中,粘合剂包含液晶材料。