公开(公告)号：US3929909A

公开(公告)日：1975-12-30

申请号：US10695971

申请日：1971-01-18

Applicant: STAMICARBON

Inventor： VAN DIERENDONCK LAURENTIUS L ,  VON DEN HOFF JOHAN P H

IPC: C07C37/56 ,  C07C205/22 ,  C07C37/00

CPC classification number: C07C37/56 ,  C07C201/12 ,  C07C39/04 ,  C07C205/22

Abstract: An improved process for removing tar from reaction mixtures obtained in preparing phenols by oxidation of benzenemonocarboxylic acid compounds in the presence of a promoter such as copper wherein the reaction solution is periodically or continuously treated to remove by-products in the form of tar from the solution, said treatment comprising maintaining a short reaction product residence time in the reaction zone wherein the degree of polymerization of the byproduct tar is maintained at a sufficiently low level so that the by-product tar is soluble in an organic, water insoluble solvent, dissolving the reaction mixture in the organic water insoluble solvent, adding water to the solution to remove metallic salts, particularly copper salts, fractionally distilling the remaining solution to remove the organic water insoluble solvent from the reaction medium, separating the solid tar products from the reaction medium and recirculating the reaction medium and the metallic salts back to the reaction zone.

Abstract translation: 一种改进的方法，用于在助催化剂例如铜的存在下，通过苯氧基羧酸化合物的氧化制备酚类获得的反应混合物中的焦油，其中定期或连续地处理反应溶液以从溶液中除去焦油形式的副产物 所述处理包括在反应区保持反应产物停留时间短，其中副产物焦油的聚合度保持在足够低的水平，使得副产物焦油可溶于有机的水不溶性溶剂中， 将反应混合物溶解在有机水不溶性溶剂中，向溶液中加入水以除去金属盐，特别是铜盐，分馏出剩余溶液，从反应介质中除去有机水不溶性溶剂，将固体焦油产物与反应物分离 介质并将反应介质和金属盐再循环回 反应区。

公开(公告)号：US3910861A

公开(公告)日：1975-10-07

申请号：US39323073

申请日：1973-08-30

Applicant: STAMICARBON

Inventor： WOLVERS WILHELMUS P ,  FRANSSEN PIERRE J ,  WARNIER JEAN M M

IPC: C08G69/20 ,  C08J3/12 ,  C08G69/18

CPC classification number: C08J3/12 ,  C08G69/20 ,  C08J2377/02

Abstract: A one step process for the preparation of granular or powdery polyamides having a novel combination of high specific density and relative viscosity, along with narrow particle size distribution and low water extractable content, but with a wide molecular weight distribution, is described wherein the polymerization process is carried out in an inert solvent, in which the lactam monomers are substantially soluble but polyamide product is substantially insoluble, and at a temperature below the melting point of the polyamide to be formed, and wherein the essential promoter employed is bis- Epsilon -caprolactimether.

Abstract translation: 描述了制备具有高比密度和相对粘度的新型组合以及窄的粒度分布和低的可提水含量但具有宽的分子量分布的颗粒或粉末状聚酰胺的一步法，其中聚合过程 在惰性溶剂中进行，其中内酰胺单体基本可溶，但是聚酰胺产物基本上不溶，并且在低于要形成的聚酰胺的熔点的温度下进行，并且其中使用的必需促进剂是双ε-己内酰胺醚 。

公开(公告)号：US3886233A

公开(公告)日：1975-05-27

申请号：US24223372

申请日：1972-04-07

Applicant: STAMICARBON

Inventor： VISSEREN MARINUS J R

IPC: C08F255/02 ,  C08F15/00

CPC classification number: C08F255/02

Abstract: Impact-resistant graft copolymers prepared by grafting a styrene, acryl or mixture of styrene-type and acryl polymers or copolymers onto a multiply unsaturated polymer based on ethylene, as a terpolymer of ethylene, propylene and other multiply unsaturated monomers (EPDM-rubbers) in the presence of a radicalforming peroxydi-carbonate initiator is disclosed. Graft copolymers so produced are impact-resistant, resist aging and are useful in forming tubes, films and bottles.

Abstract translation: 通过将苯乙烯，丙烯酸或苯乙烯类和丙烯酸聚合物或共聚物的混合物接枝到基于乙烯的多不饱和聚合物上作为乙烯，丙烯和其它多不饱和单体（EPDM-橡胶）的三元共聚物而制备的抗冲击接枝共聚物 公开了形成自由基的过氧化二碳酸酯引发剂的存在。 如此生产的接枝共聚物具有抗冲击性，抗老化性，并且可用于形成管，膜和瓶。

公开(公告)号：US3886109A

公开(公告)日：1975-05-27

申请号：US36161973

申请日：1973-05-18

Applicant: STAMICARBON

Inventor： VAN HARDEVELD RUDOLF ,  VAN DER LOOS JOZEF L M

IPC: C08F6/00 ,  C08C1/00 ,  C08J3/07 ,  C08D5/00 ,  B01D12/00 ,  B01D17/04

CPC classification number: C08J3/07 ,  C08J2321/00

Abstract: A latex of a rubbery polymer material is produced from a solution of said polymer in an organic solvent by mixing the solution with water, evaporating the solvent, subjecting the obtained foamy product to the shear forces generated in a radial symmetrical space caused by injecting into the space, tangentially to the foam therein, a flow of gas or liquid. The treated foam includes the rubbery polymer, water, an organic solvent and at least one emulsifying agent. When subjected to shear forces, the foam breaks releasing the gaseous organic solvent which is removed from the obtained latex.

Abstract translation: 橡胶状聚合物材料的胶乳由所述聚合物在有机溶剂中的溶液通过将溶液与水混合，蒸发溶剂，使得到的泡沫产物在径向对称空间中产生的剪切力，由注入到 与其中的泡沫切向的空间，气体或液体的流动。 经处理的泡沫包括橡胶状聚合物，水，有机溶剂和至少一种乳化剂。 当受到剪切力时，泡沫破裂释放从所获得的胶乳中除去的气态有机溶剂。

公开(公告)号：US3880693A

公开(公告)日：1975-04-29

申请号：US35490873

申请日：1973-04-26

Applicant: STAMICARBON

Inventor： URLINGS PIERRE M G J ,  VISSEREN MARINUS J R

IPC: B32B25/00 ,  B29C35/12 ,  B32B25/04 ,  B32B27/00 ,  C08J5/12 ,  B29H8/00 ,  C09J3/12

CPC classification number: B32B25/08 ,  B29C35/12 ,  B29K2019/00 ,  B29L2030/00 ,  B32B25/04 ,  B32B25/16 ,  B32B25/18 ,  B32B27/00 ,  B32B37/06 ,  B32B2305/72 ,  C08J5/124 ,  C08J2321/00

Abstract: A process for bonding together cured rubbery films is disclosed, wherein cured polychloroprene, butyl rubber, and/or rubbery copolymers of ethylene with at least one other alpha-alkene of 3 to 8 carbon atoms are bonded together by placing a layer of a curable rubbery polymer composition which generates heat upon exposure to a high frequency electric field between the films and heating the assembly of films under pressure in an electric field having a frequency of about 0.1 to about 500 megacycles per second. The time of heating can be appreciably shortened without diminishing the strength of the bond between the films, and without film damage. The bonded films are suitable for sealing and lining applications.

Abstract translation: 公开了一种将固化的橡胶膜粘合在一起的方法，其中将乙烯与至少一种其它3-8个碳原子的α-烯烃固化的聚氯丁二烯，丁基橡胶和/或橡胶共聚物通过将一层可固化橡胶 聚合物组合物，其在暴露于膜之间的高频电场并且在具有约0.1至约500兆周/秒的频率的电场中在压力下加热膜的组合时产生热量。 可以明显地缩短加热时间，而不会降低膜之间的结合强度，而不会损坏膜。

公开(公告)号：US3879380A

公开(公告)日：1975-04-22

申请号：US31363872

申请日：1972-12-11

Applicant: STAMICARBON

Inventor： DE ROOIJ ABRAHAM H ,  GOETTSCH REIJER

IPC: B01D11/04 ,  B01D9/02 ,  C07D201/04 ,  C07D201/16 ,  C07D41/06

CPC classification number: C07D201/16 ,  C07D201/04

Abstract: A process for recovering lactams from a mixture of one or more lactams and sulphuric acid is disclosed, wherein the sulphuric acid is neutralized with ammonia or an ammonium salt to ammonium hydrogen sulfate in the presence of a lactam solvent. The neutralization produces a melt of ammonium hydrogen sulfate and a solution of lactam in the organic solvent, and the melt is readily separated from the solution. The lactam can then be recovered from the organic solvent. The process allows the lactam to be recovered in good yield without producing, as by-product, ammonium sulfate.

Abstract translation: 公开了一种从一种或多种内酰胺和硫酸的混合物中回收内酰胺的方法，其中硫酸在内酰胺溶剂存在下用氨或铵盐中和至硫酸氢铵。 中和产生硫酸氢铵的熔体和内酰胺在有机溶剂中的溶液，并且熔体容易从溶液中分离出来。 然后可以从有机溶剂中回收内酰胺。

公开(公告)号：US3879372A

公开(公告)日：1975-04-22

申请号：US30652472

申请日：1972-11-15

Applicant: STAMICARBON

Inventor： BOESTEN WILHELMUS H J

IPC: C07C231/00 ,  A23L27/30 ,  C07C67/00 ,  C07C231/14 ,  C07D307/66 ,  C07K5/075 ,  C07C103/52 ,  A23L1/26

CPC classification number: C07D307/66 ,  A23L27/32 ,  C07K5/0613 ,  Y02P20/55 ,  Y10S530/801

Abstract: A process for preparing aspartyl Alpha -amino acid lower alkyl esters is disclosed, wherein an N-protected aspartic acid anhdyride is reacted with an Alpha -amino acid lower alkyl ester at a temperature of about -10 to +50 *C, and at a pH of 4-12, in an aqueous solvent. After the reaction, the N-protective group is removed to produce the desired aspartyl Alpha -amino acid lower alkyl ester which has a peptide linkage. Many of the products produced by the present invention are useful as sweetening agents, as well as starting materials in the synthesis of polypeptides, e.g. gastrine.

Abstract translation: 公开了一种制备天冬氨酰基α-氨基酸低级烷基酯的方法，其中将N-保护的天冬氨酸阿魏酸与α-氨基酸低级烷基酯在约-10至+50℃的温度下反应， pH为4-12，在水性溶剂中。 反应后，除去N-保护基以产生具有肽键的所需天冬氨酰基α-氨基酸低级烷基酯。

公开(公告)号：US3879323A

公开(公告)日：1975-04-22

申请号：US39843873

申请日：1973-09-18

Applicant: STAMICARBON

Inventor： VAN DER LOOS JOZEF L M

IPC: C08L23/00 ,  C08L95/00 ,  C08L101/00 ,  C08C11/70

CPC classification number: C08L95/00 ,  C08L2666/04

Abstract: A mixture containing bitumen, a high-boiling hydrocarbon and an EPDM-rubber is prepared by dissolving the EPDM under special conditions in the hydrocarbon and by subsequently mixing the resulting solution with bitumen. An improved bitumen is obtained that can be applied, for instance, in road construction. Preferably during the dissolution of EPDM in hydrocarbon, oxygen is incorporated into the mixture in a forced manner in order to achieve improved dispersion.

Abstract translation: 通过将EPDM在特殊条件下溶解在烃中，随后将所得溶液与沥青混合，制备含沥青，高沸点烃和EPDM-橡胶的混合物。 获得可以应用于例如道路施工中的改进的沥青。

公开(公告)号：US3876508A

公开(公告)日：1975-04-08

申请号：US38639973

申请日：1973-08-07

Applicant: STAMICARBON

Inventor： BONNEMA JENTJE ,  SIMON HENRI J H

IPC: C07C121/32

CPC classification number: C07C253/34 ,  Y10S203/03 ,  C07C255/08

Abstract: A process relating to the manufacture of acrylonitrile is described with particular reference to the stripping technique for recovery of small amounts of dissolved acrylonitrile from the acidic aqueous solution obtained by the cooling of the hot reaction gases from the synthesis step itself. The disclosure points out that by maintaining the pH of the feed at a value of 5 or less and desirably also maintaining a bottom product temperature in the distillation column below 100.degree. C, fouling of the distillation column is substantially obviated.

公开(公告)号：US3855266A

公开(公告)日：1974-12-17

申请号：US36939073

申请日：1973-06-12

Applicant: STAMICARBON

Inventor： BEEKHUIS G

IPC: C07C255/17 ,  C07C20060101 ,  C07C67/00 ,  C07C253/00 ,  C07C121/02

CPC classification number: C07C255/00

Abstract: A process for recovering gamma -cyanobutyraldehyde from the acid hydrolysis mixture obtained by the acid hydrolysis of Nsubstituted gamma -cyanobutyraldimine is disclosed, wherein the gamma -cyanobutyraldehyde is extracted from such acid hydrolysis mixture with methyl ethyl ketone, nitromethane, dichloromethane, chloroform or 1,2-dichloroethane. The extraction process of the present invention allows much lower amounts of solvents to be used than were used in previous prior art processes, and the gamma -cyanobutyraldehyde is readily separated from the solvent.

Abstract translation: 公开了通过N-取代的γ-氰基丁醛酰亚胺的酸水解获得的酸水解混合物中回收γ-氰基丁醛的方法，其中将γ-氰基丁醛从甲基乙基酮，硝基甲烷，二氯甲烷，氯仿或这些酸水解混合物中提取出来 1,2-二氯乙烷。