-
公开(公告)号：US5213698A
公开(公告)日：1993-05-25
申请号：US893961
申请日：1992-06-04
IPC分类号： C08F8/00 , C10L1/22 , C10L1/238 , C10L1/24 , C10M133/52 , C10M159/12
CPC分类号： C10M159/12 , C08F8/00 , C10L1/221 , C10L1/238 , C10L1/2475 , C10L1/2493 , C10M133/52 , C10M2205/00 , C10M2207/129 , C10M2207/281 , C10M2207/284 , C10M2215/04 , C10M2215/044 , C10M2215/06 , C10M2215/064 , C10M2215/065 , C10M2215/066 , C10M2215/067 , C10M2215/068 , C10M2215/08 , C10M2215/082 , C10M2215/086 , C10M2215/12 , C10M2215/122 , C10M2215/26 , C10M2217/046 , C10M2217/06 , C10M2219/046 , C10M2219/06 , C10M2219/062 , C10M2221/04 , C10M2223/045 , C10M2227/00 , C10M2227/061 , C10N2210/02 , C10N2240/00 , C10N2240/02 , C10N2240/06 , C10N2240/08 , C10N2240/10 , C10N2240/101 , C10N2240/102 , C10N2240/103 , C10N2240/104 , C10N2240/106 , C10N2240/22 , C10N2240/30 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66 , C10N2270/02
摘要： According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) an amido-amine characterized by being a reaction product of an alpha, beta-unsaturated compound of the formula: ##STR1## wherein X is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5) , and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, and bis(para-amino cyclohexyl) methane or oligomers thereof.
摘要翻译： 根据本发明，提供了改进的分散剂，其包含（A）聚合物取代的单羧酸或二羧酸或酸酐的加合物和（B）酰氨基胺，其特征在于：α，β-不饱和化合物的反应产物 其中X是硫或氧，Y是-OR 4，-SR 4或-NR 4（R 5），R 1，R 2，R 3，R 4和R 5相同或不同，为氢或取代或未取代的 烃基和双（对 - 氨基环己基）甲烷或其低聚物。
-
72.发明授权Ethylene alpha-olefin copolymer substituted mannich base lubricant dispersant additives 失效乙烯α-烯烃共聚物取代甘油基润滑剂分散助剂
公开(公告)号：US5186851A
公开(公告)日：1993-02-16
申请号：US866119
申请日：1992-04-07
IPC分类号： C08F8/02 , C08F8/32 , C08F210/16 , C10M159/16
CPC分类号： C10M159/16 , C08F8/02 , C08F8/32 , C08F210/16 , C10M2205/00 , C10M2215/04 , C10M2215/086 , C10M2215/26 , C10M2217/042 , C10M2217/043 , C10M2217/046 , C10M2221/00 , C10M2223/045 , C10N2210/02 , C10N2220/02 , C10N2270/02
摘要： The present invention is directed to oil-soluble lubricating oil additives comprising Mannich Base condensates of an alkyl substituted hydroxy aromatic compound with formaldehyde and an amine, wherein the alkyl-moiety of the aromatic compounds is derived from at least one ethylene alpha-olefin copolymer of 300 to 10,000 number average molecular weight, wherein at least about 30% of the polymer's chains contain terminal ethenylidene unsaturation. The Mannich Base condensates of this invention are useful as dispersants.
摘要翻译： 本发明涉及包含烷基取代的羟基芳族化合物与甲醛和胺的曼尼希碱缩合物的油溶性润滑油添加剂，其中芳族化合物的烷基部分衍生自至少一种乙烯α-烯烃共聚物 300至10,000数均分子量，其中至少约30％的聚合物链含有末端亚乙烯基不饱和键。 本发明的曼尼希碱缩合物可用作分散剂。
-
73.发明授权
公开(公告)号：US5162526A
公开(公告)日：1992-11-10
申请号：US737302
申请日：1991-07-29
IPC分类号： C07D307/32 , C07D307/33 , C07D307/60 , C07D309/30 , C07D487/04 , C08F8/32 , C10L1/232 , C10L1/233 , C10L1/24 , C10M133/38 , C10M133/44 , C10M133/48 , C10M133/58 , C10M135/32 , F02B3/06 , G01B3/28 , G01B5/18
CPC分类号： C07D307/33 , C07D307/32 , C07D307/60 , C07D309/30 , C07D487/04 , C08F8/32 , C10L1/232 , C10L1/233 , C10L1/2493 , C10M1/08 , C10M133/38 , C10M133/44 , C10M133/48 , C10M133/58 , C10M135/32 , G01B3/28 , G01B5/18 , C08F2800/20 , C10M2205/00 , C10M2205/022 , C10M2205/026 , C10M2205/06 , C10M2205/14 , C10M2205/22 , C10M2207/024 , C10M2207/026 , C10M2207/027 , C10M2207/028 , C10M2207/144 , C10M2207/146 , C10M2207/16 , C10M2207/262 , C10M2207/289 , C10M2209/084 , C10M2209/086 , C10M2209/112 , C10M2215/04 , C10M2215/065 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/26 , C10M2215/30 , C10M2217/046 , C10M2217/06 , C10M2219/022 , C10M2219/024 , C10M2219/044 , C10M2219/046 , C10M2219/085 , C10M2219/087 , C10M2219/088 , C10M2219/089 , C10M2219/09 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2223/041 , C10M2223/045 , C10M2223/047 , C10M2223/12 , C10M2225/04 , C10M2225/041 , C10M2227/09 , C10M2229/02 , C10M2229/05 , C10N2210/01 , C10N2210/02 , C10N2210/03 , C10N2210/05 , C10N2210/06 , C10N2210/07 , C10N2210/08 , C10N2240/08 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106 , C10N2270/02 , F02B3/06
摘要： There are disclosed macrocyclic and polycyclic polyamide lubricating oil additives formed by cyclodehydration of reaction products of hydrocarbon substituted succinic anhydrides or carboxylic acids with poly 3-amino propyl compounds or by acylation of macrocyclic polyamines and polycyclic polyamines with hydrocarbon substituted succinic anhydride or carboxylic acids. These compounds are useful as dispersants and dispersants-V.I. improvers in both gasoline and diesel engine lubricating oil compositions and are also useful fuel additives.
摘要翻译： 公开了通过烃取代的琥珀酸酐或羧酸与聚3-氨基丙基化合物的反应产物的环化脱水或通过用烃取代的琥珀酸酐或羧酸酰化大环多胺和多环多胺而形成的大环和多环聚酰胺润滑油添加剂。 这些化合物可用作分散剂和分散剂。 汽油和柴油发动机润滑油组合物中的改进剂也是有用的燃料添加剂。
-
74.发明授权Oil soluble dispersant additives modified with bis-keto/thioketo compounds 失效用双 - 酮/硫代酮化合物改性的油溶性分散剂
公开(公告)号：US5158696A
公开(公告)日：1992-10-27
申请号：US303683
申请日：1989-01-30
IPC分类号： C08F8/34 , C10L1/22 , C10L1/24 , C10M129/95 , C10M133/52 , C10M159/16 , C10M159/18
CPC分类号： C10M159/18 , C08F8/14 , C08F8/46 , C08F8/48 , C10L1/221 , C10L1/2493 , C10M129/95 , C10M133/52 , C10M159/16 , C10M2207/287 , C10M2215/04 , C10M2215/042 , C10M2215/086 , C10M2215/26 , C10M2215/28 , C10M2217/00 , C10M2217/02 , C10M2217/04 , C10M2217/042 , C10M2217/043 , C10M2217/046 , C10M2217/06 , C10M2227/09 , C10N2210/01 , C10N2210/03 , C10N2210/04 , C10N2210/06 , C10N2210/07 , C10N2210/08 , C10N2240/02 , C10N2240/04 , C10N2240/042 , C10N2240/044 , C10N2240/046 , C10N2240/08
摘要： The present invention is directed to an oil-soluble lubricating oil additive comprising at least one adduct of (A) a polyolefin of 700 to 5,000 number average molecular weight substituted nitrogen- or ester-containing ashless dispersant and (B) a bis-keto/thioketo compound.
摘要翻译： 本发明涉及一种油溶性润滑油添加剂，其包含（A）700-5000数均分子量的取代的含氮或酯的无灰分散剂的聚烯烃和（B）双 - 酮/ 硫酮复合物。
-
75.发明授权Lactone modified, esterified or aminated additives useful in oleaginous compositions and compositions containing same 失效用于含油组合物的内酯改性，酯化或胺化添加剂和含有它们的组合物
公开(公告)号：US4954277A
公开(公告)日：1990-09-04
申请号：US401373
申请日：1989-08-31
IPC分类号： C08G63/60 , C08G63/91 , C10L1/18 , C10L1/22 , C10M129/95 , C10M133/52 , C10M159/12
CPC分类号： C10L1/221 , C08G63/60 , C08G63/912 , C10L1/1817 , C10M129/95 , C10M133/52 , C10M159/12 , C10M2205/00 , C10M2205/026 , C10M2205/06 , C10M2207/027 , C10M2207/028 , C10M2207/144 , C10M2207/146 , C10M2207/16 , C10M2207/262 , C10M2207/289 , C10M2209/084 , C10M2209/086 , C10M2215/04 , C10M2215/042 , C10M2215/064 , C10M2215/065 , C10M2215/086 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/26 , C10M2215/28 , C10M2215/30 , C10M2217/046 , C10M2217/06 , C10M2219/044 , C10M2219/046 , C10M2219/087 , C10M2219/088 , C10M2219/089 , C10M2223/04 , C10M2223/042 , C10M2223/045 , C10M2223/12 , C10M2225/04 , C10M2225/041 , C10M2227/09 , C10M2229/041 , C10N2210/02 , C10N2210/06 , C10N2270/02
摘要： C.sub.5 -C.sub.9 lactone derived materials are made by simultaneously reacting (a) a C.sub.5 -C.sub.9 lactone with (b) a polyamine, a polyol or an amino alcohol and (c) a hydrocarbyl substituted C.sub.4 -C.sub.10 monounsaturated dicarboxylic acid producing material, e.g., a polyisobutenyl succinimide, which preferably was made by reacting a polymer of a C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 300 to 10,000 with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are 0.7 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture. The resulting lactone derived materials, which may be post-treated, for example, with a boron compound, are useful, per se, as oil soluble dispersant additives, and are useful in fuel and lubricating oil compositions including concentrates containing the additives.
摘要翻译： C5-C9内酯衍生物质通过（a）C5-C9内酯与（b）多胺，多元醇或氨基醇的同时反应制备，和（c）烃基取代的C4-C10单不饱和二羧酸生产材料， 聚异丁烯基琥珀酰亚胺，其优选通过使C4至C10单不饱和酸，酸酐或酯，优选马来酸酐使分子量为约300至10,000的C 2至C 10单烯烃，优选聚异丁烯的聚合物，优选马来酸酐，使得 每分子在反应混合物中使用的所述烯烃聚合物是0.7-2.0个二羧酸生产部分。 可以用硼化合物后处理的所得内酯衍生物质本身可用作油溶性分散剂添加剂，并且可用于包含含有添加剂的浓缩物的燃料和润滑油组合物中。
-
76.发明授权
公开(公告)号：US4943382A
公开(公告)日：1990-07-24
申请号：US178100
申请日：1988-04-06
IPC分类号： C08F8/16 , C08G63/60 , C10L1/22 , C10M133/52 , C10M159/12
CPC分类号： C10M159/12 , C08F8/16 , C08G63/60 , C10L1/221 , C10M133/52 , C08F2810/20 , C10M2205/00 , C10M2205/026 , C10M2207/044 , C10M2209/084 , C10M2209/086 , C10M2215/04 , C10M2215/042 , C10M2215/064 , C10M2215/065 , C10M2215/086 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/24 , C10M2215/26 , C10M2215/28 , C10M2215/30 , C10M2217/046 , C10M2217/06 , C10M2219/044 , C10M2219/085 , C10M2219/087 , C10M2219/088 , C10M2219/089 , C10M2221/00 , C10M2223/045 , C10M2223/12 , C10M2225/04 , C10M2225/041 , C10M2227/00 , C10M2227/09 , C10M2229/041 , C10N2210/02 , C10N2210/06 , C10N2240/04 , C10N2240/042 , C10N2240/044 , C10N2240/046 , C10N2240/06 , C10N2240/10 , C10N2240/101 , C10N2240/102 , C10N2240/103 , C10N2240/104 , C10N2240/106 , C10N2270/02
摘要： Lactone modified adducts are made by first reacting a non-polymerizable lactone or thiolactone and then a polymerizable C.sub.5 -C.sub.9 lactone with an aminated hydrocarbyl substituted C.sub.4 -C.sub.10 monounsaturated dicarboxylic acid producing material, e.g. a polyisobutenyl succinimide, which, in turn, preferably is made by reacting a polymer of a C.sub.2 to C.sub.10 monoolefin, preferably polyisobutylene, having a molecular weight of about 700 to 5,000 with a C.sub.4 to C.sub.10 monounsaturated acid, anhydride or ester, preferably maleic anhydride, such that there are about 0.7 to 2.0 dicarboxylic acid producing moieties per molecule of said olefin polymer used in the reaction mixture, and then reacting the substituted acid, anhydride or ester with an amine. The resulting adducts are useful per se as oil soluble dispersant additives. They are also useful in fuel and lubricating oil compositions, as well as in concentrates and additive packages.
-
77.发明授权Thio-bis(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) are useful additives for lubricating compositions 失效硫代双（烷基内酯酸酯）和硫代双 - （烃基二酸酯）是润滑组合物中有用的添加剂
公开(公告)号：US4866187A
公开(公告)日：1989-09-12
申请号：US184627
申请日：1988-04-22
IPC分类号： C07D307/32 , C07D307/33 , C07D307/60 , C07D309/30 , C10L1/233 , C10L1/24 , C10M133/44 , C10M133/48 , C10M133/58 , C10M135/32 , F02B3/06
CPC分类号： C07D307/33 , C07D307/32 , C07D307/60 , C07D309/30 , C10L1/233 , C10L1/2493 , C10M1/08 , C10M133/44 , C10M133/48 , C10M133/58 , C10M135/32 , C10M2205/00 , C10M2205/022 , C10M2205/026 , C10M2205/14 , C10M2207/024 , C10M2209/084 , C10M2209/086 , C10M2209/112 , C10M2215/065 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/30 , C10M2219/085 , C10M2219/087 , C10M2219/088 , C10M2219/089 , C10M2219/09 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2223/041 , C10M2223/045 , C10M2223/047 , C10M2229/02 , C10M2229/05 , C10N2210/03 , C10N2240/08 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106 , C10N2270/02 , F02B3/06
摘要： Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4,8-dichloro-5-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and their dehydrochlorinated analogs, when esterified with an alcohol, preferably a polyol, such as pentaerythritol, polypentaerythritol or a polyalkylene glycol with or without acid catalysts and/or metal template reagents yield thio-bis-(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) which can be characterized in part, as macrocyclic and/or macrocyclic-like structures, are useful as stable additives in lubricating compositions, e.g. as varnish inhibiting dispersants for lubricating oils and fuels.
摘要翻译： 硫代双 - （烃基取代的二酸物质），例如硫代双 - （多烷基内酯酸）和/或它们的前体是氯化硫和不饱和二酸物质的加合物，例如4,8-双 - 聚烷基-4,8 - 二氯-5-硫杂十一烷-1,2,10,11-四羧酸双酐和它们的脱氯化氢类似物，当用醇，优选多元醇如季戊四醇，聚季戊四醇或具有或不含酸催化剂的聚亚烷基二醇酯化时， /或金属模板试剂产生硫代双 - （烷基内酯酸酯）和硫代双 - （烃基二酸酯），其可部分表征为大环和/或大环类结构，可用作润滑中的稳定添加剂 组合物，例如 作为用于润滑油和燃料的清漆抑制分散剂。
-
公开(公告)号：US4857217A
公开(公告)日：1989-08-15
申请号：US126405
申请日：1987-11-30
IPC分类号： C08F8/30 , C08F8/34 , C08L23/26 , C08L79/00 , C08L79/02 , C10L1/22 , C10L1/224 , C10L1/234 , C10L1/2383 , C10L1/24 , C10L10/08 , C10M133/52 , C10M149/22 , C10M151/04 , C10M159/12 , C10N30/04 , C10N40/25 , F02B1/04
CPC分类号： C10M159/12 , C08F8/30 , C08F8/34 , C10L1/221 , C10L1/2493 , C10M133/52 , C10M149/22 , C10M151/04 , C10M2207/10 , C10M2207/129 , C10M2215/02 , C10M2215/08 , C10M2215/082 , C10M2215/086 , C10M2215/12 , C10M2215/122 , C10M2219/06 , C10M2227/00 , F02B1/04 , Y10S516/03 , Y10S516/05
摘要： The present invention is directed to a dispersant additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per polyolefin molecule, (B) an amido-amine or thioamido-amine characterized by being a reaction product of at least a polyamine and an alpha, beta-unsaturated compound of the formula: ##STR1## wherein X is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5), and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl.
-
79.发明授权Polyolefinic succinimide polyamine alkyl acetoacetate and substituted acetate adducts as compatibilizer additives in lubricating oil compositions 失效聚烯烃琥珀酰亚胺多胺烷基乙酰乙酸酯和取代乙酸酯加合物作为润滑油组合物中的相容剂添加剂
公开(公告)号：US4839073A
公开(公告)日：1989-06-13
申请号：US51275
申请日：1987-05-18
IPC分类号： C10L1/14 , C10L1/18 , C10L1/22 , C10L1/24 , C10L1/26 , C10M133/56 , C10M163/00
CPC分类号： C10L1/143 , C10M133/56 , C10M163/00 , C10L1/1832 , C10L1/1881 , C10L1/1886 , C10L1/238 , C10L1/2383 , C10L1/2437 , C10L1/265 , C10M2207/028 , C10M2207/09 , C10M2207/123 , C10M2207/125 , C10M2207/129 , C10M2207/16 , C10M2207/22 , C10M2207/26 , C10M2207/262 , C10M2207/287 , C10M2207/289 , C10M2207/34 , C10M2215/04 , C10M2215/042 , C10M2215/08 , C10M2215/082 , C10M2215/086 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/24 , C10M2215/26 , C10M2215/28 , C10M2215/30 , C10M2217/042 , C10M2217/043 , C10M2217/046 , C10M2217/06 , C10M2219/044 , C10M2219/046 , C10M2219/068 , C10M2219/087 , C10M2219/088 , C10M2219/089 , C10M2223/045 , C10N2210/01 , C10N2210/02 , C10N2270/02
摘要： This invention is to compatibility aids containing polyolefinic succinimide polyamide alkyl acetoacetate or trialkyl acetic anhydride adducts of the general formula: ##STR1## wherein Z.sup.1 and Z.sup.3 are the same or different and are moities of the formula: ##STR2## Z.sup.2 is a moiety of the formula: ##STR3## wherein R.sup.2, R.sup.3 and R.sup.4 are the same or different and are alkylene of from 1 to 6 carbon atoms, m is an integer of from 1 to 5, each A' is independently selected from the group consisting of H, A and the moiety: ##STR4## wherein A" is H or A, R.sup.3 is as defined above, R.sup.6 is alkylene of from 1 to 6 carbon atoms, T.sup.1 and T.sup.2 are the same or different and each comprises a member selected from the group consisting of moieties of the formula: ##STR5## wherein B' is substituted or unsubstituted alkyl or aryl-containing group, n.sup.1 is an integer of 0 to 10, n.sup.2 is an integer of 0 to 10, n.sup.3 is an integer of from 0 to 10, n.sup.4 is an integer of from 0 to 10, with the proviso that the sum of n.sup.1, n.sup.2, n.sup.3 and n.sup.4 is from 3 to 10 and the sum of n.sup.1, n.sup.3 and n.sup.4 is at least 1, wherein R.sup.1 and R.sup.5 are independently an olefin polymer having a number average molecular weight (M.sub.n) between about 650 and 3,500, and wherein A comprises: (i) substituted acetyl moiety of the formula: ##STR6## (ii) a tautomeric substituent of the formula: ##STR7## wherein R.sup.7, R.sup.8 and R.sup.9 are the same or different and are H or alkyl of from 1 to 4 carbon atoms, and wherein R.sup.10 is substituted or unsubstituted alkyl or aryl containing groups, with the proviso that at least one of the A' or A" groups comprises the substituted acetyl or the tautomeric substituent.
摘要翻译： 本发明涉及包含以下通式的聚烯烃琥珀酰亚胺聚酰胺烷基乙酰乙酸酯或三烷基乙酸酐加合物的相容性助剂，其中Z 1和Z 3相同或不同，并且是下式的部分：Z 2是 式：其中R 2，R 3和R 4相同或不同，为1至6个碳原子的亚烷基，m为1至5的整数，每个A'独立地选自H， A和部分：其中A“是H或A，R3如上定义，R6是1至6个碳原子的亚烷基，T1和T2相同或不同，并且各自包含选自 其中B'为取代或未取代的含烷基或芳基的基团，n1为0〜10的整数，n2为0〜10的整数，n3为0以上的整数。 至10，n4为0至10的整数，条件是n1，n2，n3和n4的和来自 3至10，n1，n3和n4的和为至少1，其中R1和R5独立地为数均分子量（＆amp; upbar＆Mn）在约650与3,500之间的烯烃聚合物，其中A包括：（i） （ii）下式的互变异构取代基：其中R 7，R 8和R 9相同或不同，为H或1至4个碳原子的烷基，并且其中R 10 是取代或未取代的含有烷基或芳基的基团，条件是至少一个A'或A“基团包括取代的乙酰基或互变异构取代基。
-
80.发明授权
公开(公告)号：US4600519A
公开(公告)日：1986-07-15
申请号：US717554
申请日：1985-03-29
IPC分类号： C10M135/26
CPC分类号： C10M135/26 , C10M2219/085 , C10N2240/06 , C10N2240/08
摘要： There are disclosed power shift transmission fluids such as automatic transmission fluids containing a friction modifier additive being an oil soluble alkylthio succinic anhydride or acid, such as octadecyl thiosuccinic acid or anhydride.
摘要翻译： 公开了一种动力换档传动液，例如含有油溶性烷硫基琥珀酸酐或酸的摩擦改进剂添加剂的自动变速器油，例如十八烷基硫代琥珀酸或酸酐。
-
-
-
-
-
-
-
-
-
搜索结果
194 条记录 (耗时 0.04 秒)
