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1. 发明授权

US4397968A Process for the manufacture of copolymers having increased resistance against hydrolysis, the copolymers and their use 失效
标题翻译：具有增加的抗水解性，共聚物及其用途的共聚物的制造方法
公开(公告)号：US4397968A
公开(公告)日：1983-08-09
申请号：US327351
申请日：1981-12-04
申请人： Herbert Eck , Klaus Adler , Manfred Hannebaum , Wilhelm Lechner
发明人： Herbert Eck , Klaus Adler , Manfred Hannebaum , Wilhelm Lechner
IPC分类号： C08L29/00 , C08F2/20 , C08F2/22 , C08F2/44 , C08F12/08 , C08F20/12 , C08L29/04 , C08L33/00 , C08L33/02 , C08L33/04 , C08K9/00
CPC分类号： C08F12/08 , C08F20/12
摘要： A process for the production of an aqueous dispersion stabilized by a water-soluble polyvinyl alcohol and based on copolymers that comprise at least 60% by weight of monomer units selected from the group consisting of esters of acrylic acid, esters of methacrylic acid, styrene, and substituted styrene and mixtures thereof, consisting essentially of subjecting a stabilized dispersion of a monomer mixture containing at least 60% by weight of monomers selected from the group consisting of esters of acrylic acid, esters of methacrylic acid, styrene, substituted styrene and mixtures thereof, said dispersion being an aqueous dispersion stabilized by a water-soluble polyvinyl alcohol, to polymerization at a temperature in excess of 60.degree. C. in the presence of a free-radical-forming catalyst selected from the group consisting of (a) organic catalysts soluble in the monomers and also being at least partially water-soluble, optionally in combination with water-soluble reducing agents and (b) peroxosulfur catalysts, in such a manner that, during the entire duration of the reaction, said monomer mixture is supplied at such a rate by metering in the monomer mixture in the form of a previously obtained emulsion, that the monomer concentration is maintained at less than 20% by weight, based on the total weight of the reaction mixture, and recovering said stabilized dispersion; as well as the aqueous dispersion produced by the process, the use of the aqueous dispersions as a binder in dispersion dyes and adhesives, the said binder having increased resistance against hydrolysis on drying due to the special manufacturing process.
摘要翻译：一种制备由水溶性聚乙烯醇稳定的水性分散体的方法，并且基于共聚物，所述共聚物包含至少60重量％的单体单元，所述单体单元选自丙烯酸的酯，甲基丙烯酸的酯，苯乙烯，和取代的苯乙烯及其混合物，基本上由以下组成的单体混合物的稳定分散体：含有至少60重量％的选自丙烯酸的酯，甲基丙烯酸的酯，苯乙烯，取代的苯乙烯及其混合物的单体的混合物所述分散体是由水溶性聚乙烯醇稳定的水分散体，在自由基形成催化剂存在下，在超过60℃的温度下聚合，所述自由基形成催化剂选自（a）有机催化剂可溶于单体，并且至少部分为水溶性，任选与水溶性还原剂组合，和（b）pe 罗莫硫磺催化剂，使得在反应的整个持续时间期间，所述单体混合物以预先获得的乳液形式的单体混合物中的计量以这样的速率供应，单体浓度保持在小于 20重量％，基于反应混合物的总重量，并回收所述稳定的分散体; 以及通过该方法制备的水分散体，在分散染料和粘合剂中使用水性分散体作为粘合剂，所述粘合剂由于特殊的制造工艺而具有增加的耐干燥水解性。

2. 发明授权

US4035329A Process for the continuous production of an ethylene/vinyl acetate copolymer dispersion 失效
标题翻译：用于连续生产乙烯/乙酸乙烯酯共聚物分散体的方法
公开(公告)号：US4035329A
公开(公告)日：1977-07-12
申请号：US633591
申请日：1975-11-19
申请人： Hubert Wiest , Josef Hanzalik , Wilhelm Lechner , Erwin Lieb
发明人： Hubert Wiest , Josef Hanzalik , Wilhelm Lechner , Erwin Lieb
IPC分类号： C08F2/00 , C08F2/22 , C08F2/24 , C08F4/00 , C08F4/40 , C08F10/00 , C08F210/00 , C08F210/02 , C08F218/00 , C08F218/02 , C08F218/08 , C08L31/04
CPC分类号： C08F218/08 , C08F210/02
摘要： A process for the continuous manufacture of an aqueous ethylene/vinyl acetate copolymer dispersion which comprises continuously copolymerizing ethylene and vinyl acetate and optionally other .alpha.-olefinically unsaturated monomers, in an aqueous emulsion in the presence of an emulsifier and/or a protective colloid, and in the presence of a free-radical-forming redox catalyst system of a reducing agent and an oxidizing agent as well, optionally, as a heavy metal salt, and recovering said ethylene/vinyl acetate copolymer dispersion, characterized by (a) the presence of a molar excess of at least 3 times, preferably from 3 to 10 times, said reducing agent over said oxidizing agent dosed into the reaction medium and (b) adding the monomers continuously to the reaction mixture at such a rate that the concentration of unreacted monomers at no place in the reaction zone exceeds 15% by weight of the total weight of the reaction mixture.
摘要翻译：一种用于连续制造乙烯/乙酸乙烯酯共聚物分散体的方法，其包括在水乳液中在乳化剂和/或保护胶体的存在下连续共聚乙烯和乙酸乙烯酯和任选的其它α-烯烃不饱和单体，以及在还原剂和氧化剂的自由基形成氧化还原催化剂体系的存在下，任选地，作为重金属盐，并回收所述乙烯/乙酸乙烯酯共聚物分散体，其特征在于（a）存在摩尔过量为所述还原剂至少3倍，优选3至10倍，所述还原剂超过所述投入到反应介质中的氧化剂，和（b）将所述单体连续加入到反应混合物中，使得未反应单体的浓度在反应区域的任何地方超过反应混合物总重量的15重量％。

3. 发明授权

US3954687A Stable polyvinyl ester dispersions and methods of producing the same 失效
标题翻译：稳定的聚乙烯酯分散体及其制备方法
公开(公告)号：US3954687A
公开(公告)日：1976-05-04
申请号：US511248
申请日：1974-10-02
申请人： Hubert Wiest , Wilhelm Lechner
发明人： Hubert Wiest , Wilhelm Lechner
IPC分类号： C08F2/00 , C08F2/22 , C08F2/24 , C08F18/04 , C08J3/02 , C08L31/00 , C08L31/04 , C08L3/02
CPC分类号： C08F18/04
摘要： An improvement in the production of polyvinyl ester dispersions by polymerization of vinyl esters or copolymerization of vinyl esters with up to 40% by weight of oil-soluble, mono-olefinically-unsaturated monomers in an aqueous emulsion in the presence of water-soluble radical-forming polymerization catalysts, protective colloids and optionally emulsifiers and polymerization aids, the improvement comprising using carboxymethyl celluloses having a substitution degree of at least 10 as said protective colloids; as well as stable mixtures of the said polyvinyl ester dispersions and dextrin.
摘要翻译：通过乙烯基酯的聚合或乙烯基酯与水溶性单烯属不饱和单体在水溶性单烯属不饱和单体中的存在下，在水溶性基团 - 形成聚合催化剂，保护胶体和任选的乳化剂和聚合助剂，改进包括使用取代度至少为10的羧甲基纤维素作为所述保护胶体; 以及所述聚乙烯酯分散体和糊精的稳定混合物。

4. 发明授权

US4263191A Additive composition used in the preparation of low air pore, plastic containing, hydraulically-setting binders 失效
标题翻译：用于制备低气孔，含塑料，水硬性粘合剂的添加剂组合物
公开(公告)号：US4263191A
公开(公告)日：1981-04-21
申请号：US40770
申请日：1979-05-21
申请人： Herbert Eck , Paul-Gerhard Kirst , Wilhelm Lechner
发明人： Herbert Eck , Paul-Gerhard Kirst , Wilhelm Lechner
IPC分类号： C08L101/00 , C04B24/26 , C04B24/42 , C04B28/02 , C08K3/34 , C08K3/36 , C08L1/00 , C08L23/00 , C08L27/00 , C08L31/00 , C08L31/04 , C08L33/00 , C08L33/02 , C08L71/00 , C08L71/02 , C08L83/00 , C08L83/04 , C08L87/00 , C04B13/26 , C08L83/06
CPC分类号： C04B24/2688 , C04B28/02
摘要： An additive composition used in the preparation of low air pore, plastic-containing, hydraulically-setting binders consisting essentially of a mixture of (1) an aqueous copolymer dispersion having a solids content of between 30% and 65% by weight, a glass transition temperature of the solid copolymer of between -10.degree. C. and +40.degree. C., and a K-value of the solid copolymer of from 35 to 80, which aqueous copolymer dispersion being produced from monomer units of vinyl chloride, vinyl acetate and one or more additional copolymerizable monomers selected from the group consisting of ethylene, vinyl alkanoates having from 8 to 18 carbon atoms in the alkanoyl, and (meth)acrylic acid esters with alkanols having 3 to 8 carbon atoms, by free-radical polymerization in the presence of from 1.5% to 5% by weight of protective colloids and from 0 to 3% by weight of nonionic surface-active agents, both based on the dispersion, with (2) from 0.3% to 3% by weight, based on the mixture of a defoamer mixture consisting of5 to 50 parts out of 100 parts of a dimethyl polysiloxane with 50 to 1000 mPa's,1 to 10 parts out of 100 parts of a flame-hydrolyzed silicon dioxide, and49 to 94 parts out of 100 parts of an ethylene/oxide propylene oxide block copolymer with a molecular weight of from 500 to 10,000, containing from 10% to 60% by weight of ethylene oxide units. With the above additive composition, it is now possible to produce hydraulically setting, plastic-containing binding materials which have a very low content of air-filled pores, and thus give better strength values of the set, plastic-containing, hydraulically-setting binding materials.
摘要翻译：用于制备低空气孔，含塑料的水硬定型粘合剂的添加剂组合物，其主要由以下组分组成：（1）固体含量为30重量％至65重量％的水性共聚物分散体，玻璃化转变固体共聚物的温度为-10℃至+ 40℃，固体共聚物的K值为35至80，该共聚物分散体由氯乙烯，乙酸乙烯酯和一种或多种另外的可共聚单体，其选自乙烯，烷酰基中具有8至18个碳原子的链烷酸乙烯酯，和（甲基）丙烯酸酯与具有3-8个碳原子的链烷醇，通过在基于分散体，基于分散体，存在1.5〜5重量％的保护胶体和0〜3重量％的非离子表面活性剂，（2）0.3重量％〜3重量％，基于消泡剂的混合物在100份具有50至1000mPa的二甲基聚硅氧烷中的5至50份，100份火焰水解二氧化硅中的1至10份，以及100份乙烯/ 100重量份中的49至94份，氧化丙烯氧化物嵌段共聚物，其分子量为500至10,000，含有10至60重量％的环氧乙烷单元。使用上述添加剂组合物，现在可以生产具有非常低空气填充孔的含量的含有粘合剂的水硬性粘合材料，并且因此提供了更好的强度值，这种含塑料的液压固定结合材料

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