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81. 发明授权

US5194469A Latex for coatings having improved flexibility 失效
标题翻译：用于具有改进柔性的涂料
公开(公告)号：US5194469A
公开(公告)日：1993-03-16
申请号：US662091
申请日：1991-02-28
申请人： Richard E. Srail , Gary L. Burroway
发明人： Richard E. Srail , Gary L. Burroway
IPC分类号： C08F2/26 , C08F2/30 , C08F6/06 , C08F6/14 , C08F8/44 , C08F12/08 , C08F20/06 , C08F20/10 , C08F20/26 , C08F212/00 , C08F212/04 , C08F212/06 , C08F212/08 , C08F220/12 , C08F220/18 , C08F220/28 , C09D5/08 , C09D5/32 , C09D125/00 , C09D125/02 , C09D125/04 , C09D125/08 , C09D133/04 , C09D133/08
CPC分类号： C09D125/02 , C08F212/04 , C08F220/12 , C08F8/44 , C09D133/08
摘要： This invention relates to the synthesis of a latex which can be formulated into coatings having improved flexibility and good water resistance. Coatings of this type are particularly useful in roof coating applications because they offer excellent flexibility, excellent ultra-violet light resistance, and good water resistance. The subject invention more specifically discloses a process for producing a neutralized latex that is useful in the manufacture of water reducible coatings which comprises:(1) free radical aqueous emulsion polymerizing, at a pH of less than about 3.5, a monomer mixture which comprises, based on 100 weight percent monomers: (a) from about 30 to about 70 weight percent vinyl aromatic monomers, (b) from about 25 to about 65 weight percent of at least one alkyl acrylate monomer, (c) from about 1 to about 5 weight percent of acrylic acid, and (d) about 0.4 to about 3 weight percent methacrylic acid, in the presence of about 0.2 to 0.4 phm at least one sulfonate surfactant and in the presence of about 4 to 8 phm of at least one nonionic surface active agent having a hydrophile-lipophile balance number which is within the range of about 12 to about 20 to produce a latex; and(2) neutralizing the latex with ammonia to a pH which is within the range of about 7 to about 10.5 to produce the neutralized latex.

82. 发明授权

US5041464A Process for preparing polymer emulsion particles having pores 失效
标题翻译：制备具有孔的聚合物乳液颗粒的方法
公开(公告)号：US5041464A
公开(公告)日：1991-08-20
申请号：US457078
申请日：1989-12-26
申请人： Futoshi Hoshino , Takeshi Yanagihara , Makoto Nakano
发明人： Futoshi Hoshino , Takeshi Yanagihara , Makoto Nakano
IPC分类号： C08F2/22 , C08F6/14 , C08F8/12 , C08F263/04 , C08F291/00 , C09D7/12 , C09D123/26 , D21H19/00 , D21H19/58 , D21H19/60
CPC分类号： D21H19/60 , C08F263/04 , C08F291/00 , C08F8/44 , D21H19/58 , C08F2810/50
摘要： A process for preparing polymer emulsion particles having pores therein, an outside diameter D of 0.1 to 5.0[ , an inside diameter d of 0.05 to 4.0.mu. , and a ratio (d/D) of 0.1 to 0.9 in dry condition, comprising the steps of forming core-shell emulsion particles from specific monomers by two-emulsion polymerizations, and swelling the core of the particles with water by hydrolyzing the vinyl acetate part of polymer (A), thereby inducing the hydroxyl groups therein, e.g., using an acidic material or a basic material at 50.degree. to 100.degree. C. The particles when use as a pigment in coating compositions provide excellent converage rate, brightness, gloss and water resistance.

83. 发明授权

US4894397A Stable emulsion polymers and methods of preparing same 失效
标题翻译：稳定的乳液聚合物及其制备方法
公开(公告)号：US4894397A
公开(公告)日：1990-01-16
申请号：US184480
申请日：1988-04-21
申请人： Lee W. Morgan , Richard J. Esser , Dennis P. Jensen
发明人： Lee W. Morgan , Richard J. Esser , Dennis P. Jensen
IPC分类号： C08F2/22 , C08F6/00 , C08F6/14 , C08F265/06 , C08F291/00 , C08J3/03
CPC分类号： C08J3/03 , C08F265/06 , C08F291/00 , Y10T428/24322
摘要： An improved process for pruducing stabilized, core-shell latex emulsions is disclosed. In a process which comprises preparing a hydrophilic polymer and contacting the hydrophilic polymer with a hydrophobic monomer for producing an inverted core-shell latex emulsion, the improvement comprises the additional step of adjusting the pH of the inverted core-shell latex emulsion to dissolve the hydrophilic polymer, thereby to produce a stabilized, core-shell latex emulsion.

84. 发明授权

US4857616A Process for the preparation of polychloroprene 失效
标题翻译：制备聚氯丁二烯的方法
公开(公告)号：US4857616A
公开(公告)日：1989-08-15
申请号：US154936
申请日：1988-02-11
申请人： Rudiger Musch , Eberhard Muller , Gerhard Hohmann , Karl-Heinz Schabel
发明人： Rudiger Musch , Eberhard Muller , Gerhard Hohmann , Karl-Heinz Schabel
IPC分类号： C08F6/14 , C08C19/08 , C08F2/26 , C08F2/38 , C08F4/30 , C08F4/40 , C08F6/06 , C08F36/18
CPC分类号： C08C19/08 , C08F36/18
摘要： Storage-stable polychloroprene is obtained, by aqueous emulsion polymerization, using xanthogen disulphides as molecular weight regulators, when a peptizing agent is added after the end of the polymerization.
摘要翻译：当聚合结束后加入胶溶剂时，通过水乳液聚合获得储存稳定的聚氯丁二烯，使用黄原酸二硫化物作为分子量调节剂。

85. 发明授权

US4569991A Production of thermoplastic resin 失效
标题翻译：生产热塑性树脂
公开(公告)号：US4569991A
公开(公告)日：1986-02-11
申请号：US457246
申请日：1983-01-11
申请人： Kiyoharu Fujino
发明人： Kiyoharu Fujino
IPC分类号： C08C1/14 , C08F6/22 , C08J3/12 , C08F6/14
CPC分类号： C08J3/12 , C08C1/14 , C08F6/22 , C08J2321/02
摘要： A method for flocculating latex particles in a latex is characterized in that a water soluble cationic polymer containing a quaternary ammonium salt in its molecular chain is added as a flocculant to the latex also disclosed is a process for producing a thermoplastic resin which comprises flocculating latex particles in a latex material by adding a water soluble cationic polymer containing a quaternary ammonium salt in its molecular chain to the latex, removing freed water from the flocculated latex to obtain a wet cake and then drying the wet cake directly or after the granulation.
摘要翻译：在胶乳中絮凝胶乳颗粒的方法的特征在于，在分子链中含有季铵盐的水溶性阳离子聚合物作为絮凝剂加入到胶乳中，还公开了一种制备热塑性树脂的方法，该方法包括将胶乳颗粒在胶乳材料中，通过在其分子链中加入含有季铵盐的水溶性阳离子聚合物到胶乳中，从絮凝的胶乳中除去释放的水，得到湿滤饼，然后直接或在造粒后干燥湿滤饼。

86. 发明授权

US4533432A Continuous process for the concentration of W/O-emulsions by evaporation 失效
标题翻译：通过蒸发浓缩W / O乳液的连续方法
公开(公告)号：US4533432A
公开(公告)日：1985-08-06
申请号：US507148
申请日：1983-06-23
申请人： Gerd Goldmann , Georg Spott , Christian Frohlich
发明人： Gerd Goldmann , Georg Spott , Christian Frohlich
IPC分类号： C08F6/00 , C02F1/04 , C08F6/14 , B01D1/02
CPC分类号： C08F6/14 , Y10S159/09 , Y10S159/16
摘要： The continuous process makes it possible to reduce the water content of polymers to minor residual levels (ppm) by adding to a W/O-emulsion an extractant which is subsequently evaporated with the oil.
摘要翻译：连续方法使得可以通过向W / O乳液中加入随后用油蒸发的萃取剂将聚合物的水含量降低到较小的残余水平（ppm）。

87. 发明授权

US4384092A Process for the manufacture of polytetrafluoroethylene 失效
标题翻译：制造聚四氟乙烯的方法
公开(公告)号：US4384092A
公开(公告)日：1983-05-17
申请号：US257243
申请日：1981-04-24
申请人： Jean Blaise , Jean-Louis Herisson
发明人： Jean Blaise , Jean-Louis Herisson
IPC分类号： C08L27/12 , C08F2/00 , C08F6/00 , C08F6/06 , C08F6/14 , C08F6/24 , C08J3/02 , C08K3/22 , C08L1/00 , C08L27/00 , C08L27/18 , C08F14/18
CPC分类号： C08F6/14
摘要： A treatment procedure for aqueous colloidal polytetrafluoroethylene dispersions obtained by polymerization of tetrafluoroethylene in the presence of the lithium salt of a perfluoroalkanesulfonic acid as the emulsifier, characterized by the fact that a basic hydroxide or a soluble ammonium, alkali metal or alkaline-earth salt, with the exception of lithium hydroxide or a lithium salt, is added to the dispersion.
摘要翻译：在全氟烷基磺酸的锂盐作为乳化剂的存在下聚四氟乙烯获得的水性胶态聚四氟乙烯分散体的处理方法，其特征在于碱性氢氧化物或可溶性铵，碱金属或碱土金属与将氢氧化锂或锂盐除外。

88. 发明授权

US4371636A Preparation of copolymer dispersions having a narrow particle size distribution, and exhibiting dilatant flow over a broad range of concentrations 失效
标题翻译：制备具有窄的粒度分布的共聚物分散体，并且在宽的浓度范围内表现出膨胀的流动
公开(公告)号：US4371636A
公开(公告)日：1983-02-01
申请号：US279548
申请日：1981-07-01
申请人： Dieter Distler , Hans Wolf , Gerhard Welzel
发明人： Dieter Distler , Hans Wolf , Gerhard Welzel
IPC分类号： C08F2/00 , C08F2/22 , C08F2/24 , C08F6/00 , C08F6/14 , C08F220/00 , C08F220/04 , C08F220/12 , C08F246/00 , C08J3/02 , C08J3/09 , C08L35/06
CPC分类号： C08F220/12 , C08J3/02 , C08J3/09
摘要： A process for the preparation of copolymer dispersions having a narrow particle size distribution, and exhibiting dilatant flow over a broad range of concentrations, by emulsion copolymerization of from 1 to 10% by weight, based on total monomers, of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids with other monoolefinically unsaturated monomers and with from 0 to 5% by weight of polyolefinically unsaturated monomers in the presence of conventional emulsifiers, dispersants and polymerization initiators, and in the presence or absence of regulators, wherein the monomers are copolymerized in aqueous emulsion, with simultaneous agglomeration but only partial fusion of the initially formed polymer particles, at a temperature near the glass transition temperature of the copolymer formed, and thereafter(A) the copolymer content of the aqueous copolymer dispersion is brought to 35-55% by weight and the pH to 3-5 or(B) the water contained in the aqueous copolymer dispersion is entirely or partially replaced by a water-miscible liquid which does not dissolve or swell the copolymer.
摘要翻译：通过基于总单体1至10重量％的α，β-单烯属不饱和的共聚物的乳液共聚制备共聚物分散体的方法，其具有窄的粒度分布，并且在宽的浓度范围内表现出膨胀的流动单羧酸和/或二羧酸与其它单烯属不饱和单体和0-5重量％的聚烯烃不饱和单体在常规乳化剂，分散剂和聚合引发剂存在下，以及在存在或不存在调节剂的情况下，其中单体为共聚在水性乳液中，同时凝聚，但是仅在形成的共聚物的玻璃化转变温度附近的温度下仅部分熔融，此后（A）使含水共聚物分散体的共聚物含量达到35- 55重量％，pH至3-5或（B）水中含有的水共聚物分散体完全或部分地被不溶解或溶胀共聚物的水混溶性液体代替。

89. 发明授权

US4334057A Continuous process for recovering polymers from their latexes 失效
标题翻译：从其胶乳中回收聚合物的连续方法
公开(公告)号：US4334057A
公开(公告)日：1982-06-08
申请号：US218085
申请日：1980-12-19
申请人： Gabriele Govoni , Gianfranco Rubichi , Pierluigi Guardigli
发明人： Gabriele Govoni , Gianfranco Rubichi , Pierluigi Guardigli
IPC分类号： C08F6/00 , B01J8/00 , B01J19/24 , B01J19/26 , C08F6/06 , C08F6/14 , C08F6/22 , C08F12/00 , C08F12/08 , C08F212/00 , C08F212/10 , C08F6/10
CPC分类号： C08F6/22 , B01J19/242 , B01J19/26 , B01J8/0055 , B01J2219/00094
摘要： Polymers are continuously recovered from their latexes obtained by polymerization in emulsion by a process comprising the following steps:(A) feeding the polymeric latexes containing 10 to 50% by weight of polymer, at a temperature of from 10.degree. to 120.degree. C., through one or more feeding channels, to the narrow zone or to the divergent section of a nozzle in which water vapor flows at sonic or supersonic speed respectively, according to vapor/latex feeding ratios of 0.1-2 Kg of vapor/Kg of latex, where the latex is subdivided by the water vapor into a dispersion of particles; and(B) continuously feeding the dispersion obtained in step (A) to a tube or an exchanger of the type tube-in-tube directly connected with the divergent section of the nozzle where the dispersion, at a temperature of 100.degree.-150.degree. C. for residence times of from 0.1 to 1 second, maintains a speed of 50-150 m/sec., so providing a dispersion of solid caked particles of polymer and of liquid particles in a vapor phase comprising the unreacted monomers and the water vapor, the vapor phase being separated from the dispersion by means of known methods.
摘要翻译：通过包括以下步骤的方法从乳液中聚合获得的胶乳连续回收聚合物：（A）在10℃至120℃的温度下加入含有10至50重量％聚合物的聚合物胶乳，根据0.1-2Kg蒸气/ Kg胶乳的蒸汽/胶乳进料比，通过一个或多个进料通道分别到窄波段或喷嘴的发散部分，其中水蒸汽以声波或超音速流动，其中胶乳被水蒸汽细分成颗粒分散体; 和（B）将在步骤（A）中获得的分散体连续地供给到与分散体在100-150℃的温度下直接连接的喷管的发散部分的管式或管式换热器的管或换热器 C.停留时间为0.1至1秒，保持速度为50-150米/秒，从而提供聚合物和液体颗粒的固体结块颗粒在包含未反应单体和水蒸气的气相中的分散体，通过已知方法将气相与分散体分离。

90. 发明授权

US4315843A Thin film monomer removal from polyvinyl chloride latexes 失效
标题翻译：从聚氯乙烯胶乳中除去薄膜单体
公开(公告)号：US4315843A
公开(公告)日：1982-02-16
申请号：US153605
申请日：1980-05-27
申请人： Graziano Vidotto , Febo Sellan , Enzo Bacchetta , Sandro Mainardi , Giovanni Benussi
发明人： Graziano Vidotto , Febo Sellan , Enzo Bacchetta , Sandro Mainardi , Giovanni Benussi
IPC分类号： C08F14/00 , C08F6/00 , C08F6/06 , C08F6/14 , C08F6/16 , C08F14/06
CPC分类号： C08F6/16
摘要： A process for extracting vinyl chloride monomer from polyvinyl chloride latexes is disclosed, characterized in that the latex is continuously flowed on and along a heat exchange surface in the form of a thin film having a thickness ranging from 0.5 to 1.2 mm, said latex having a temperature between 40.degree. and 70.degree. C. and under a pressure ranging from 45 to 210 mm Hg., and for a time ranging from 10 to 70 seconds. The gaseous vinyl chloride monomer is removed concurrently with the flow of the latex. Suitable apparatus is also disclosed.
摘要翻译：公开了一种从聚氯乙烯胶乳中提取氯乙烯单体的方法，其特征在于胶乳在厚度范围为0.5至1.2mm的薄膜形式的热交换表面上并沿着其流动，所述胶乳具有温度在40°至70°C之间，压力范围为45至210 mm Hg，时间范围为10至70秒。气态氯乙烯单体与胶乳的流动同时被除去。还公开了合适的装置。

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