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81. 发明授权

EP0510492B1 Photochlorination of phthalic anhydride 失效
标题翻译： Phthalsäureanhydrids的Photochlorierung。
公开(公告)号：EP0510492B1
公开(公告)日：1995-07-05
申请号：EP92106425.9
申请日：1992-04-14
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Seper, Karl W. , Molinaro, John R.
IPC分类号： C07C51/567
CPC分类号： C07C51/567 , C07C63/68

82. 发明授权

EP0398205B1 Polyimides and co-polyimides based on dioxydiphthalic anhydride 失效
标题翻译：在基于dioxydiphthalic聚酰亚胺和共聚酰亚胺。
公开(公告)号：EP0398205B1
公开(公告)日：1994-12-14
申请号：EP90109009.2
申请日：1990-05-14
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Schwartz, Willis T. , Stults, Jeffrey S.
IPC分类号： C08G73/10
CPC分类号： C08G73/1085 , C08G73/1064 , C08G73/1071

83. 发明公开

EP0621288A2 Process for producing polyethylene 失效
标题翻译： Verfahren zur Herstellung von Polyethylen。
公开(公告)号：EP0621288A2
公开(公告)日：1994-10-26
申请号：EP94106227.5
申请日：1994-04-21
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Todd, William, G. , Grimm, Patrick, A. , Daws, Joe, C.
IPC分类号： C08F10/02 , C08F2/00 , C08F4/685
CPC分类号： C08F10/02 , C08F2/00
摘要： Disclosed is a method of making polyethylene wherein ethylene, a catalyst, a cocatalyst and a solvent are added to a reactor. A first mixture is formed of the ethylene and either the catalyst or the cocatalyst and a second mixture is separately formed of the solvent and the other of the catalyst or cocatalyst. These two mixtures are then combined in a reactor to produce the polyethylene.
摘要翻译：公开了一种制备聚乙烯的方法，其中将乙烯，催化剂，助催化剂和溶剂加入到反应器中。第一混合物由乙烯和催化剂或助催化剂形成，第二混合物分别由溶剂和另一种催化剂或助催化剂形成。然后将这两种混合物在反应器中混合以制备聚乙烯。

84. 发明授权

EP0424805B1 Copolyimide ODPA/BPDA/4,4'-ODA/p-PDA 失效
标题翻译：共聚酰亚胺ODPA / BPDA / 4,4'-ODA / p-PDA
公开(公告)号：EP0424805B1
公开(公告)日：1994-03-02
申请号：EP90119996.8
申请日：1990-10-18
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Meterko, Timothy A. , Mundhenke, Rudolph F. , Schwartz, Willis T.
IPC分类号： C08G73/10 , H01L21/312
CPC分类号： H01L23/145 , C08G73/1042 , C08G73/1067 , C08G73/1071 , H01L24/29 , H01L2924/12033 , H01L2924/00

85. 发明授权

EP0385253B1 Process for preparing 2,4,5-trifluorobenzoic acid 失效
标题翻译：制备2,4,5-三氟硼酸的方法
公开(公告)号：EP0385253B1
公开(公告)日：1993-09-29
申请号：EP90103334.0
申请日：1990-02-21
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Lin, Henry C. , Nowak, Deanne M.
IPC分类号： C07C63/70 , C07C51/363
CPC分类号： C07C51/363 , C07C227/18 , C07C245/20 , C07C63/70 , C07C229/56

86. 发明授权

EP0413194B1 Novel bis m-benzotrifluoride compounds 失效
标题翻译：新的BIS M-BENZOTRIFLUORIDE化合物
公开(公告)号：EP0413194B1
公开(公告)日：1993-06-16
申请号：EP90114686.0
申请日：1990-07-31
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Stults, Jeffrey S. , Lin, Henry C.
IPC分类号： C07C205/38 , C07C205/45 , C07C317/14 , C07C323/09 , C07C217/90 , C07C225/22 , C07C317/36 , C07C323/37 , C08G73/10 , C08G69/32 , C08G18/32
CPC分类号： C07C217/90 , C07C205/38 , C07C205/45 , C07C225/22 , C07C317/14 , C07C323/09

87. 发明公开

EP0495425A3 Preparation of diphenyl ether 失效
标题翻译：二苯醚的制备
公开(公告)号：EP0495425A3
公开(公告)日：1993-04-21
申请号：EP92100429.7
申请日：1992-01-13
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Buchanan, Robert A. , Stults, Jeffrey S.
IPC分类号： C07C205/38 , C07C201/12 , C07C217/90 , C07C255/54 , C07B41/04 , C07C65/24 , C07C51/367 , C08G73/10
CPC分类号： C07C255/54 , C07C201/12 , C07C253/30 , C07C205/38
摘要： A process for the production of diaryl ethers which comprises heating a compound of the formula

wherein X and Y may be selected from the group consisting of H, CN, CO₂H, CO₂R, CHO, COR, NO₂, NR3+ CF₃, provided that both X and Y may not simultaneously be H, in a solvent, in the presence of an inorganic base selected from the group consisting of the alkali metal carbonates and bicarbonates, and in the presence of a catalyst selected from the group consisting of benzoic acid, substituted benzoic acids, C2 - C14 aliphatic carboxylic acids, and alkali metal salts of said acids. A novel dinitrodiphenyl ether, a novel diaminodiphenyl ether, and polyimide resins are also disclosed.

88. 发明公开

EP0518060A2 Polyimidesiloxane extended block copolymers 失效
标题翻译： Mit Polyimids siliconeinheiten erweiterte Blockcopolymere。
公开(公告)号：EP0518060A2
公开(公告)日：1992-12-16
申请号：EP92107915.8
申请日：1992-05-11
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Rojstaczer, Sergio
IPC分类号： C08G73/10 , C08G77/455
CPC分类号： C08G73/106 , C08G77/455 , Y10T428/31663
摘要： Disclosed is method of making a polyimidesiloxane extended block copolymer containing at least one polyimide block made by reacting a dianhydride with a diamine that does not contain a siloxane group, and at least one polyimidesiloxane block made by reacting a dianhydride with a diamine that contains at least one siloxane group, where each polyimidesiloxane block is prepared using more than one mole of the dianhydride for each mole of the siloxane-containing diamine. That is, any siloxane-imide blocks in the polyimidesiloxane are formed from amic acid blocks terminated in anhydride groups and any imide blocks in the polyimidesiloxane are formed from amic acid blocks terminated in amine groups. The polyimidesiloxane block copolymers have higher glass transition temperatures than the corresponding non-extended block copolymers while retaining the same solubility.
摘要翻译：公开了制备聚酰亚胺硅氧烷延伸嵌段共聚物的方法，该嵌段共聚物含有至少一个通过使二酐与不含硅氧烷基团的二胺反应制得的聚酰亚胺嵌段，以及至少一种通过使二酐与至少含有二胺的二胺反应制备的聚酰亚胺硅氧烷嵌段一个硅氧烷基团，其中每个聚硅氧烷嵌段使用每摩尔含硅氧烷的二胺使用超过1摩尔的二酐制备。也就是说，聚酰亚胺硅氧烷中的任何硅氧烷 - 酰亚胺嵌段由以酸酐基终止的酰胺嵌段形成，聚酰亚胺硅氧烷中的任何酰亚胺嵌段由胺基封端的酰胺嵌段形成。聚酰亚胺硅氧烷嵌段共聚物具有比相应的非延伸嵌段共聚物更高的玻璃化转变温度，同时保持相同的溶解度。

89. 发明公开

EP0517002A2 Diamines and photosensitive polyimides made therefrom 失效
标题翻译：二酰胺和二酰胺。
公开(公告)号：EP0517002A2
公开(公告)日：1992-12-09
申请号：EP92107914.1
申请日：1992-05-11
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Rosenfeld, Jerold C. , Choi, Jin-O , Tang, David Y. , Tyrell, John A.
IPC分类号： C07C229/60 , C07C237/30 , C08G73/12 , H01L21/027 , G03F7/038
CPC分类号： C08G73/1007 , C07C229/60 , C07C237/30 , C08G73/10 , C08G73/1039 , C08G73/1082 , G03F7/0387
摘要： Disclosed is an aromatic diamine having the general formula

where A is a group containing at least one aromatic ring, each Y is independently selected from

or -OR, R is a group containing at least one olefinically unsaturated group, R' is hydrogen, alkyl to C 25 , aryl, or

R, n is 1 to 4, and the number of olefinic groups in Y is at least 3 when each Y is

and otherwise is at least 2. Photosensitive polyamic acids and polyimides can be prepared from the aromatic diamines which can be crosslinked with light to a mask to form patterns on a substrate.
摘要翻译：公开了具有通式的芳族二胺，其中A是含有至少一个芳环的基团，每个Y独立地选自CHOR或-OR，R是含有至少一个烯属不饱和基团的基团R '是氢，烷基至C25，芳基或R，n为1至4，当Y为时，Y中的烯基数为至少3，否则为至少2.感光聚酰胺酸和聚酰亚胺可以从可以用光交联到掩模上的芳族二胺制备，以在基材上形成图案。

90. 发明公开

EP0450307A1 Hydrous trivalent chromium oxide/carbon particles 失效
标题翻译： Teilchen aus wasserhaltigem，dreiwertigen Chromoxyd und Kohlenstoff。
公开(公告)号：EP0450307A1
公开(公告)日：1991-10-09
申请号：EP91103042.7
申请日：1991-02-28
申请人： OCCIDENTAL CHEMICAL CORPORATION
发明人： Stambaugh, Edgel P. , Morgan, Russell J.
IPC分类号： C01G37/00 , C22B34/32
CPC分类号： C22B34/32 , B22F9/24 , C01G37/02 , C01P2002/85 , C01P2004/03 , C01P2006/80
摘要： Disclosed is a method of making particles which comprise hydrous trivalent chromium oxide having the empirical formula CrO₂H intimately associated with a pulverulent carbonaceous substrate. A composition is formed which comprises an aqueous solution of water-soluble hexavalent chromium compound and a reducing agent in an amount sufficient to reduce the hexavalent chromium compound to the hydrous trivalent chromium oxide and to reduce the hydrous trivalent chromium oxide to metallic chromium. The reducing agent comprises a water-insoluble pulverulent carbonaceous substrate. Chrome metal can be made by heating the particles at a temperature of about 1100 to about 1400°C.
摘要翻译：公开了一种制备颗粒的方法，其包括具有与粉状碳质底物密切相关的经验式CrO 2 H的含水三价铬氧化物。形成组合物，其包含水溶性六价铬化合物的水溶液和还原剂，其量足以将六价铬化合物还原成含水三价铬氧化物并将含水三价铬氧化物还原为金属铬。还原剂包括水不溶性粉状含碳底物。铬金属可以通过在约1100至约1400℃的温度下加热颗粒来制备

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