公开(公告)号：EP0303283B1

公开(公告)日：1993-02-03

申请号：EP88113138.7

申请日：1988-08-12

Applicant: ATOCHEM NORTH AMERICA, INC.

Inventor： Myers, Terry Ned

IPC: C07C243/24 ,  C07C241/00 ,  C07C311/49 ,  C07C251/74 ,  C07C251/86 ,  C07C249/16 ,  C07C281/06 ,  C08K5/16 ,  C08K5/24

CPC classification number: C07D209/48 ,  C07C243/00 ,  C07C243/34 ,  C07C243/38 ,  C07C251/72 ,  C07D209/76 ,  C07D211/74 ,  C07D217/24 ,  C07D221/14 ,  C07D265/33 ,  C07D279/12 ,  C08K5/25

公开(公告)号：EP0516192A2

公开(公告)日：1992-12-02

申请号：EP92113890.5

申请日：1989-02-13

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Kazmierczak, Robert Thaddeus ,  Macleay, Ronald Edward

IPC: C08K5/3435 ,  C07D211/56 ,  C07D211/60 ,  C07D211/92

CPC classification number: C07D401/04 ,  C07D211/58 ,  C08K5/3435 ,  C08L23/12

Abstract: N-(2,2,6,6-tetraalkyl-4-piperidinyl)amine-hydrazides of dicarboxylic acids contain a light stabilizing group, a heat stabilizing group, a 5-membered lactam ring and a reactive hydrazide functionality in the same molecule. The reactive stabilizers can be prepared by reacting 4-amino-2,2,6,6-tetraalkylpiperidines with dialkyl itaconates followed by hydrazinolysis of the ester group of the intermediate mono ester-amide. The compounds are useful for introducing permanent heat and light stability to coreactive polymers or copolymers. They are also useful in the stabilization of inert polymeric systems against the degradative effects of heat and light when merely mixed with, rather than reacted with, the polymers for which stabilization is sought.

Abstract translation: 二羧酸的N-（2,2,6,6-四烷基-4-哌啶基）胺 - 酰肼在同一分子中含有光稳定基团，热稳定基团，5元内酰胺环和反应性酰肼官能团。 反应性稳定剂可以通过使4-氨基-2,2,6,6-四烷基哌啶与衣康酸二烷酯反应，然后通过中间体单酯 - 酰胺的酯基进行肼解来制备。 该化合物可用于将热稳定性和光稳定性引入聚合物或共聚物。 它们也可用于稳定惰性聚合物体系以抵抗热和光的降解作用，当仅与需要稳定化的聚合物混合而不是与其反应时。

公开(公告)号：EP0507333A2

公开(公告)日：1992-10-07

申请号：EP92105801.2

申请日：1992-04-03

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Baron, Arthur L. ,  MacLeay, Ronald E. ,  Kmiec, Jennifer P.

IPC: C08G59/40 ,  C08G59/54 ,  C08L101/00

CPC classification number: C08K5/3435 ,  C08G59/1477 ,  C08G59/4035 ,  C08L63/00 ,  Y10T428/31511 ,  C08L2666/02

Abstract: Curable compositions which are precursors for cured or partially cured light stabilized epoxy resins which are the product of the reaction of some or all of the epoxy groups of an epoxy resin with an N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazide as well as the cured or partially cured reaction products thereof together with processes for their use and articles of manufacture produced thereby are disclosed.

Abstract translation: 作为固化或部分固化的光稳定化环氧树脂的前体的可固化组合物，其是环氧树脂的一些或全部环氧基团与N-（2,2,6,6-四烷基-4- 哌啶基）酰胺酰肼以及其固化或部分固化的反应产物及其制备方法及由此制备的制品。

公开(公告)号：EP0505692A1

公开(公告)日：1992-09-30

申请号：EP92101629.1

申请日：1992-01-31

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Henderson, Phyllis Ann ,  Postuma, Carl ,  Schon, Steven Gabriel

IPC: C07C303/44 ,  C07C309/04

CPC classification number: C07C303/44 ,  Y02P20/582 ,  C07C309/04

Abstract: A process of preparing purified alkanesulfonic acid from crude aqueous alkanesulfonic acid containing oxidizable impurities wherein the crude material is treated with a sufficient amount of chlorine to convert the oxidizable impurities to alkanesulfonyl chloride and then hydrolyzing said alkanesulfonyl chloride to alkanesulfonic acid by heating.

Abstract translation: 从含有可氧化杂质的粗制烷基磺酸水溶液中制备纯化的链烷磺酸的方法，其中用足够量的氯处理粗物质以将可氧化杂质转化为烷基磺酰氯，然后通过加热将所述烷烃磺酰氯水解成烷烃磺酸。

公开(公告)号：EP0494639A2

公开(公告)日：1992-07-15

申请号：EP92100147.5

申请日：1992-01-07

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Baron, Arthur Lawrence ,  Myers, Terry Ned

IPC: C08G18/38

CPC classification number: C08G18/285 ,  C08G18/3834

Abstract: Stabilized polyurethanes, polyureas and polyurethane-polyurea polymers having hindered amine light stabilizers (HALS) bonded thereto by means of a hydrazide functionality attached to the HALS are provided. The synergistic effect of a second amide functional group in the HALS-hydrazide provides improved photostabilization efficiency as compared to HALS-hydrazides of the prior art.

Abstract translation: 设置键合到其稳定的聚氨酯，聚脲和聚氨酯 - 聚脲聚合物具有受阻胺光稳定剂（HALS），通过酰肼功能上连接到HALS手段。 第二酰胺官能团在HALS酰肼的协同效应提供了改进的效率，因为光稳定相比于现有技术的HALS酰肼。

公开(公告)号：EP0313353B1

公开(公告)日：1992-06-17

申请号：EP88309864.2

申请日：1988-10-20

Applicant: DOWELANCO ,  Atochem North America, Inc.

Inventor： Carson, Chrislyn M. ,  Copping, Leonard G. ,  Ehr, Robert J. ,  Gitlitz, Melvin H. ,  McNeil, Maynard W. ,  Street, Peter F. S. ,  Liebeschuetz, John W.

IPC: C07F7/08 ,  A01N55/00

CPC classification number: C07F7/0812 ,  A01N55/00

公开(公告)号：EP0290478B1

公开(公告)日：1992-04-08

申请号：EP87905012.8

申请日：1987-06-12

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： HANKS, William, Vilas ,  LINDAHL, Charles, Blighe ,  MESHRI, Dayaldas, Tanumal, Jairamari ,  KING, James, Ping

IPC: C01G30/00

CPC classification number: C10M125/24 ,  C01G30/008 ,  C10M2201/065

Abstract: Method of preparing SbSbS4 product having a low level of free sulfur impurity, which includes mixing aqueous solutions of an alkali metal thioantimonate and a halide stabilized antimony thrihalide to form a reaction mixture, while maintaining the reaction mixture at a pH of less than 7, to provide the SbSbS4 product having a low level of free sulfur impurity.

公开(公告)号：EP0477593A1

公开(公告)日：1992-04-01

申请号：EP91114752.8

申请日：1991-09-02

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Overgaard, Thomas Harvey ,  Verduce, Louis Philip

IPC: C07C215/12 ,  C07C213/10

CPC classification number: C07C213/10

Abstract: Off-color N-(C₄-C₁₀)alkyl di(C₂-C₃) alkanolamines purified and decolorized by vacuum distillation at a pressure within the range of 1 to 50 mm.Hg (1-50 torr) in the presence of water and or water-soluble metal borohydride whereby the distilled alkanolamine has a reduced APHA color rating which is maintained on storage.

Abstract translation: 在水存在下，通过真空蒸馏在1至50mmHg（1-50托）范围内的压力下纯化和脱色脱色N-（C 4 -C 10）烷基二（C 2 -C 3）烷醇胺，或 水溶性金属硼氢化物，其中蒸馏的链烷醇胺具有降低的APHA颜色等级，其保持在储存状态。

公开(公告)号：EP0463475A3

公开(公告)日：1992-03-25

申请号：EP91109625.3

申请日：1991-06-12

Applicant: ELF ATOCHEM NORTH AMERICA, INC.

Inventor： Lindstrom, Michael Jeffrey

IPC: E21B37/06 ,  C01B17/033

CPC classification number: C09K8/532 ,  Y10S507/932

Abstract: A composition is disclosed for dissolving sulfur and preventing or removing sulfur plugs from sour gas and oil wells or other conduits through which sulfur bearing liquids flow which comprises a major proportion of a liquid or gaseous mercaptan, a minor proportion of a catalyst which is a substantially water-insoluble amine, and minor amount of an activator which is a compound of the formula:

where R is hydrogen, alkyl, aryl or alkaryl and the alkyl moieties have from 1 to 24 carbon atoms, and x and y are independent values between 0 and 24 provided that x or y is at least 1; a method is also disclosed wherein said composition in an effective amount is injected into a conduit to prevent or remove sulfur plugging, and the composition containing dissolved sulfur is optionally recovered.

公开(公告)号：EP0259537B1

公开(公告)日：1992-03-25

申请号：EP87102632.4

申请日：1987-02-25

Applicant: ATOCHEM NORTH AMERICA, INC. (a Pennsylvania corp.)

Inventor： Kamath, Vasanth R. ,  Palys, Leonard H.

IPC: C08F283/00 ,  C08F4/38 ,  C08F6/10 ,  C08G18/63

CPC classification number: C08F283/00 ,  C08F6/006 ,  C08G18/63