公开(公告)号：US4417053A

公开(公告)日：1983-11-22

申请号：US320562

申请日：1981-11-12

Applicant: Antonius Corvers ,  Cornelis W. van den Broek ,  Geertrudes H. Suverkropp

Inventor： Antonius Corvers ,  Cornelis W. van den Broek ,  Geertrudes H. Suverkropp

IPC: C07C67/40 ,  B01J23/00 ,  B01J23/75 ,  C07B61/00 ,  C07C67/00 ,  C07C67/313 ,  C07C69/738 ,  C07C201/00 ,  C07C205/55 ,  C07C205/61 ,  C07C231/00 ,  C07C231/12 ,  C07C233/11 ,  C07C235/78 ,  C07D213/55 ,  C07D333/06 ,  C07D333/24 ,  C07C69/76 ,  C07D213/50

CPC classification number: C07D213/55 ,  C07D333/24

Abstract: A process for preparing substituted glyoxylic acid derivatives by oxidizing with a molecular oxygen containing gas an amide or ester of a hydroxy acid in the presence of a catalytic amount of a cobalt compound.

Abstract translation: 在催化量的钴化合物的存在下，用含有分子氧气体的酰胺或羟酸的酯氧化制备取代的乙醛酸衍生物的方法。

公开(公告)号：US4409164A

公开(公告)日：1983-10-11

申请号：US247546

申请日：1981-03-25

Applicant: Albert J. H. Brasz ,  Hermanus A. Wallink

Inventor： Albert J. H. Brasz ,  Hermanus A. Wallink

IPC: B29B7/00 ,  B29C44/34 ,  B29C47/00 ,  B29C47/20 ,  B29C47/64 ,  B29D27/00 ,  B29F3/02

CPC classification number: B29C47/0004 ,  B29C44/3442 ,  B29C47/64 ,  B29C47/0011 ,  B29C47/0019 ,  B29C47/0021 ,  B29K2101/10 ,  B29K2301/10 ,  Y10S264/18

Abstract: A process is described for improving the rate of production, other conditions being equal, of extruded polymer products, containing foaming- and/or cross-linking agents, which particularly resides in using a "melting torpedo" rotatable element in the melting section of the extrusion apparatus.

Abstract translation: 描述了一种用于提高包含发泡和/或交联剂的挤出聚合物产品的生产速率，其他条件相同的方法，其特别在于在熔融部分中使用“熔化鱼雷”可旋转元件 挤压装置

公开(公告)号：US4408046A

公开(公告)日：1983-10-04

申请号：US368971

申请日：1982-04-16

Applicant: Rudolf Van Hardeveld

Inventor： Rudolf Van Hardeveld

IPC: C07D251/56 ,  C07D251/60

CPC classification number: C07D251/60

Abstract: An improved process for the preparation of melamine from urea or thermal decomposition products thereof. A melamine containing reaction mixture is cooled with an aqueous medium to form an aqueous product stream containing melamine and reaction by-products. Product melamine is separated from the aqueous product stream leaving a residual aqueous stream which is recycled into the process. A portion of this residual aqueous stream still containing reaction by-product is treated to remove by-products therefrom prior to being recycled to the process.

Abstract translation: 一种用于从尿素或其热分解产物制备三聚氰胺的改进方法。 含有三聚氰胺的反应混合物用水介质冷却以形成含有三聚氰胺和反应副产物的含水产物流。 将产物三聚氰胺与水性产物流分离，留下残留的水流，将其再循环到该方法中。 处理仍含有反应副产物的残余含水物流的一部分，以便在再循环至该方法之前从其中除去副产物。

公开(公告)号：US4387083A

公开(公告)日：1983-06-07

申请号：US257475

申请日：1981-04-24

Applicant: Cornelis A. M. Weterings ,  Johannes A. Janssen

Inventor： Cornelis A. M. Weterings ,  Johannes A. Janssen

IPC: C01F11/46 ,  C04B11/05 ,  C09C1/02 ,  C01B25/16

CPC classification number: C04B11/05 ,  C01F11/466 ,  C09C1/025 ,  C01P2004/61 ,  C01P2004/62

Abstract: A process for preparing calcium sulphate anhydrite from calcium sulphate dihydrate so that the calcium sulphate anhydrite crystals will have a predetermined average particle size. The process is conducted by recrystallizing the calcium sulphate dihydrate at moderate temperatures in the presence of sulphuric acid having a concentration of 40-65% wt. calculated relative to the quantity of liquid phase in the recrystallization mixture. The particle size of the final product is controlled by varying the temperature and residence time of the recrystallization mixture in recrystallization zone and by varying the temperature in an inverse relationship to the acid concentration.Calcium sulphate anhydrite crystals having an average particle size between about 0.5 and about 3 micron are produced by maintaining the temperature between about 40.degree. C. and 90.degree. C. and the residence time from about 5 minutes to less than about 30 minutes. Average particle sizes in the range of about 10 to about 20 micron are produced by maintaining the temperature in the range of about 20.degree. C. and about 45.degree. C. and the residence time between about 30 minutes and 3 hours.Anhydrite seed crystals are not supplied in the reactor at the initiation of the recrystallization nor are added to the recrystallization mixture.

Abstract translation: 从硫酸钙二水合物制备硫酸钙无水石膏的方法，使得硫酸钙无水石膏晶体具有预定的平均粒度。 该方法通过在中等温度下在浓度为40-65％（重量）的硫酸存在下重结晶硫酸钙二水合物进行。 相对于再结晶混合物中液相的量计算。 通过改变重结晶区中的重结晶混合物的温度和停留时间并通过改变与酸浓度成反比关系的温度来控制最终产物的粒度。 通过将温度保持在约40℃至90℃，停留时间为约5分钟至小于约30分钟，产生平均粒度为约0.5微米至约3微米的硫酸钙无水石膏晶体。 通过将温度保持在约20℃和约45℃的范围内并且在约30分钟至3小时之间的停留时间来制备在约10至约20微米范围内的平均粒度。 在重结晶开始时，反应器中不提供无水石膏晶种，也不能加入重结晶混合物中。

公开(公告)号：US4382020A

公开(公告)日：1983-05-03

申请号：US261738

申请日：1981-05-07

Applicant: Lambertus J. M. A. van de Leemput ,  Godefridus A. H. Nooijen ,  Hendrikus W. van der Loo

Inventor： Lambertus J. M. A. van de Leemput ,  Godefridus A. H. Nooijen ,  Hendrikus W. van der Loo

IPC: C08F4/00 ,  C08F4/60 ,  C08F4/62 ,  C08F4/639 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02 ,  B01J21/02 ,  B01J23/02 ,  B01J23/22 ,  B01J23/26

CPC classification number: C08F10/00 ,  C08F10/02

Abstract: An improved process for the preparation of a catalyst for the polymerization of ethylene, and an improved process for preparing an ethylene polymer therewith. An improved supported chromium-containing catalyst is prepared by reacting (1) a chromium chelate of a 1,3-diketo compound and (2) a vanadium chelate or a vanadyl chelate of a 1,3-diketo compound, separately or jointly with (3) an organometallic compound of an element from Group II or III of the periodic system, jointly contacting the resulting reaction products of (1) and (2) with (3) with an inert inorganic supporting material so as to deposit such reaction products thereon, whereafter the supporting material containing the reaction products is heated in a non-reducing atmosphere at a temperature of between 200.degree. and 1200.degree. C. The 1,3-diketo compounds of (1) and (2) are the same or different, and have the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different, R.sub.1 and R.sub.3 being an alkyl group of 1-10 carbon atoms, and R.sub.2 being selected from the group consisting of an alkyl group with 1-10 carbon atoms, and a hydrogen atom. The catalyst so prepared can be used either alone, or together with an organo-metallic compound of an element of Group II or III of the periodic system, in the polymerization of polyethylene or in the copolymerization of polyethylene with up to 15 mole percent of one or more .alpha.-alkenes having 3 to 15 carbon atoms.

Abstract translation: 用于制备乙烯聚合催化剂的改进方法，以及用于制备乙烯聚合物的改进方法。 通过使（1）1,3-二酮化合物的铬螯合物和（2）1,3-二酮化合物的钒螯合物或氧钒基螯合物分别或与（ 3）周期性体系的II或III族元素的有机金属化合物，将所得的（1）和（2）的反应产物与（3）的反应产物与（3）的惰性无机支撑材料共同接触，以便将其上的反应产物沉积在其上 然后，在200-1200℃的温度下，在非还原气氛中加热含有反应产物的载体材料。（1）和（2）的1,3-二酮化合物相同或不同， 并且具有其中R 1，R 2和R 3相同或不同的化学式，其中R 1和R 3为1-10个碳原子的烷基，R 2选自具有1-10个碳原子的烷基 原子和氢原子。 如此制备的催化剂可以单独使用或与周期性体系的II或III族元素的有机金属化合物一起使用在聚乙烯中或在聚乙烯与至多15摩尔％的聚合物的共聚中使用 或更多的具有3至15个碳原子的α-烯烃。

公开(公告)号：US4351807A

公开(公告)日：1982-09-28

申请号：US209121

申请日：1980-11-21

Applicant: Martinus Tels ,  Jan P. Lotens ,  Hendrikus P. M. Kivits

Inventor： Martinus Tels ,  Jan P. Lotens ,  Hendrikus P. M. Kivits

IPC: B01D11/04 ,  C02F1/26 ,  C22B3/26 ,  C22B3/30 ,  C22B3/32 ,  C22B3/40 ,  C01G3/00 ,  C01G51/00

CPC classification number: C22B3/0017 ,  B01D11/0457 ,  C02F1/26 ,  C22B3/0024 ,  C22B3/0032 ,  C22B3/0033 ,  Y02P10/234

Abstract: An extraction process is described for the selective separation of metal ions belonging to the group Cu and Co, in aqueous solution of Cu- and Co-ions, wherein there is used as the extraction medium one or more unsaturated fatty acids, optionally in solution and/or in admixture with saturated fatty acids and an aliphatic oxime.

Abstract translation: 描述了用于在Cu和Co离子的水溶液中选择性分离属于Cu和Co族的金属离子的提取方法，其中用作萃取介质一种或多种不饱和脂肪酸，任选地在溶液中和 /或与饱和脂肪酸和脂族肟混合。

公开(公告)号：US4344910A

公开(公告)日：1982-08-17

申请号：US26221

申请日：1979-04-02

Applicant: Jan M. J. M. Bijen

Inventor： Jan M. J. M. Bijen

IPC: B32B13/02 ,  B28B23/00 ,  C04B16/12 ,  E04C5/07 ,  B29H9/02

CPC classification number: E04C5/073 ,  B28B23/0006 ,  C04B16/12 ,  Y10S264/81 ,  Y10T428/24281

Abstract: An improved process for the manufacture of reinforced shaped articles from water-hardening materials. A plurality of continuous networks of synthetic organic polymer material having at least two meshes per square centimeter are incorporated in said water-hardening materials as reinforcement. The networks are prepared by forming meshes in an unfibrillated film of the synthetic organic polymer material.

Abstract translation: 一种用于从水硬化材料制造增强成型制品的改进方法。 在所述水硬化材料中加入多个具有每平方厘米至少两个网眼的合成有机聚合物材料的连续网络。 通过在合成有机聚合物材料的未原纤化膜中形成网孔来制备网络。

公开(公告)号：US4326085A

公开(公告)日：1982-04-20

申请号：US158578

申请日：1980-06-11

Applicant: Mario G. R. T. De Cooker

Inventor： Mario G. R. T. De Cooker

IPC: C07C27/26 ,  C07C27/00 ,  C07C29/86 ,  C07C45/80 ,  C07C67/00

CPC classification number: C07C45/80 ,  C07C29/86 ,  C07C2101/14

Abstract: The invention relates to a method for removal of alkali metal carboxylates from mixtures which contain a cycloalkanone and a cycloalkanol, in particular cyclohexanone and cyclohexanol, and which have been obtained in oxidation in the liquid phase of the corresponding cycloalkane with gas containing molecular oxygen.According to the invention, alkali metal carboxylates are removed from such mixtures containing a cycloalkanone and a cycloalkanol by washing the mixture with an aqueous acid solution, in particular an aqueous solution of carboxylic acid with 1-6 carbon atoms per molecule.The invention provides a solution to the problem of the so-called alkali entrainment, which leads to loss of cycloalkanone owing to condensation into undesired high-boiling by-products in the following distillation for gaining pure cycloalkone. This substantial loss is prevented by the method according to the invention.

Abstract translation: 本发明涉及一种从含有环烷酮和环烷醇，特别是环己酮和环己醇的混合物中除去碱金属羧酸盐的方法，并且在相应的环烷烃的液相中用含有分子氧的气体氧化得到。 根据本发明，通过用酸性水溶液，特别是每分子具有1-6个碳原子的羧酸水溶液洗涤混合物，从含有环烷酮和环烷醇的混合物中除去碱金属羧酸盐。 本发明提供了所谓的碱夹带问题的解决方案，由于在随后的蒸馏中冷凝成不纯的高沸点副产物而导致环烷酮的损失，以获得纯的环烯酮。 通过根据本发明的方法防止了这种显着的损失。

公开(公告)号：US4315884A

公开(公告)日：1982-02-16

申请号：US024435

申请日：1979-03-23

Applicant: Rene L. E. Van Gasse

Inventor： Rene L. E. Van Gasse

IPC: B44C1/20 ,  B29C37/00 ,  B29C43/18 ,  B44C3/02 ,  C08J3/24 ,  B29D9/00 ,  B29B1/04

CPC classification number: C08J3/24 ,  B29C37/0032 ,  C08K5/0025 ,  B29K2067/00 ,  C08J2367/06 ,  Y10S525/934

Abstract: The invention concerns a process in which a shaped article is prepared by first coating the inside of a mold with a coating powder, curing the coating, introducing a thermosetting mass in the mold and curing to form an article provided with a decorative layer. The invention consists in the use of a polyester-based coating powder, obtained by absorbing a liquid catalyst in part of the unsaturated components making up the powder, separately grinding that part and a mixture of the remaining components to about the same particle size and mixing the powders thus obtained. The invention assures better curing of the coating.

Abstract translation: 本发明涉及一种方法，其中通过首先用涂料粉末涂覆模具内部来制备成型制品，固化涂层，将热固性材料引入模具中并固化以形成具有装饰层的制品。 本发明在于使用通过在部分构成粉末的不饱和组分中吸收液体催化剂而获得的聚酯基涂料粉末，将该部分和剩余组分的混合物分别研磨至大致相同的粒度并混合 由此获得的粉末。 本发明确保了涂层的更好的固化。

公开(公告)号：US4309530A

公开(公告)日：1982-01-05

申请号：US113286

申请日：1980-01-18

Applicant: Edmond H. J. P. Bour ,  Johannes A. L. Brouwers ,  Jean M. M. Warnier

Inventor： Edmond H. J. P. Bour ,  Johannes A. L. Brouwers ,  Jean M. M. Warnier

IPC: C08G69/00 ,  C08G69/24

CPC classification number: C08G69/24

Abstract: Polypyrrolidone polymers and copolymers are obtained by polymerizing 2-pyrrolidone, optionally with another lactam, in the presence of a catalyst and accelerator, first in the mass until at least 10% of the monomer is converted but the reaction product is still capable of suspension, then completing the desired degree of polymerization by suspending the reaction mixture in an inert liquid dispersion agent that does not dissolve the desired polymer. Relatively high molecular weight polymers are prepared in a short amount of time using this two-stage procedure.

Abstract translation: 聚吡咯烷酮聚合物和共聚物通过在催化剂和促进剂的存在下，任选地与另一种内酰胺聚合的2-吡咯烷酮，首先在该物质中直至至少10％的单体转化，但反应产物仍然能够悬浮， 然后通过将反应混合物悬浮在不溶解所需聚合物的惰性液体分散剂中来完成所需的聚合度。 使用该两步法在短时间内制备相对高分子量的聚合物。