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11. 发明授权

US5336278A Fuel composition containing an aromatic amide detergent 失效
标题翻译：含有芳香族酰胺洗涤剂的燃料组合物
公开(公告)号：US5336278A
公开(公告)日：1994-08-09
申请号：US61377
申请日：1993-05-13
申请人： Paul E. Adams , Richard M. Lange , Stephen H. Stoldt
发明人： Paul E. Adams , Richard M. Lange , Stephen H. Stoldt
IPC分类号： C10L1/10 , C10L1/18 , C10L1/183 , C10L1/188 , C10L1/19 , C10L1/198 , C10L1/22 , C10L1/223 , C10L1/23
CPC分类号： C10L1/183 , C10L1/1985 , C10L1/2235 , C10L1/231
摘要： A fuel composition comprising a major amount of a normally liquid fuel and a minor amount of at least one compound of the general formula ##STR1## wherein each Ar is independently an aromatic group having from 4 to about 30 carbon atoms and from 0 to 3 optional substituents selected from the group consisting of amino, hydroxy- or alkyl- polyoxyalkyl, nitro, aminoalkyl, carboxy or combinations of two or more of said optional substituents, each R is independently a hydrocarbyl group, R.sup.1 is H or a hydrocarbyl group, R.sup.2 and R.sup.3 are each, independently, H or a hydrocarbyl group, R.sup.4 is a monovalent terminating group, each m is independently 0 or an integer ranging from 1 to about 10, x ranges from 0 to about 8, and each Z is independently OH, lower alkoxy, (OR.sup.5).sub.b OR.sup.6 or O.sup.- wherein each R.sup.5 is independently a divalent hydrocarbyl group, R.sup.6 is H or hydrocarbyl and b is a number ranging from 1 to about 30 and c ranges from 1 to about 3, y is a number ranging from 1 to about 10 and wherein the sum m+c does not exceed the number of valences of the corresponding Ar available for substitution and at least one A is independently an amide or an amide-containing group. In one embodiment, (I) is present in an amount effective to provide total fuel intake system cleanliness in a port fuel injected internal combustion engine.
摘要翻译：一种燃料组合物，其包含主要量的常规液体燃料和少量至少一种通式为（I）的化合物，其中每个Ar独立地为具有4-30个碳原子的芳基和0 至3个选自氨基，羟基或烷基 - 聚氧基烷基，硝基，氨基烷基，羧基或两个或多个所述任选取代基的组合的任选取代基，每个R独立地为烃基，R 1为H或烃基，R 2和R 3各自独立地为H或烃基，R 4为一价末端基团，各m独立地为0或1至约10的整数，x为0至约8，Z各自独立地为 OH，低级烷氧基，（OR 5）bOR 6或O-，其中每个R 5独立地为二价烃基，R 6为H或烃基，b为1至约30的数，c为1至约3，y为数字范围从1到大约10，其中s 嗯m + c不超过相应的可用于取代的Ar的化合价数，并且至少一个A独立地是酰胺或含酰胺基团。在一个实施方案中，（I）以有效提供在燃料喷射的内燃机的燃油进口系统清洁度的有效量存在。

12. 发明授权

US6117941A Intermediates useful for preparing dispersant-viscosity improvers for lubricating oils 失效
标题翻译：用于制备润滑油的分散剂 - 粘度改进剂的中间体
公开(公告)号：US6117941A
公开(公告)日：2000-09-12
申请号：US57850
申请日：1998-04-09
申请人： Paul E. Adams , Richard M. Lange , Richard Yodice , Mark R. Baker , Jeffry G. Dietz
发明人： Paul E. Adams , Richard M. Lange , Richard Yodice , Mark R. Baker , Jeffry G. Dietz
IPC分类号： C10M129/32 , C08F8/00 , C08L23/16 , C08L47/00 , C08L53/00 , C10M129/36 , C10M129/70 , C10M129/76 , C10M129/93 , C10M129/95 , C10M143/12 , C10M159/12 , C10N30/02 , C08F255/00
CPC分类号： C10M159/12 , C08F8/00 , C10M129/93 , C10M129/95 , C08F2800/10 , C10M2207/281 , C10M2207/282 , C10M2207/283 , C10M2207/286 , C10M2207/289
摘要： Compositions comprising reaction product of higher molecular weight olefinic reactants with carboxylic reactants of the formula R.sup.3 C(O)(R.sup.4).sub.n C(O)OR.sup.5 (IV) or the corresponding acetals, hemiacetals, ketals, and hemiketals thereof are useful as intermediates for further reaction in the preparation of lubricating oil additives.
摘要翻译：包含较高分子量烯属反应物与式R 3 C（O）（R 4）n C（O）OR 5（IV）的羧酸反应物或相应的缩醛，半缩醛，缩酮和半缩醛的反应产物的组合物可用作进一步反应的中间体在制备润滑油添加剂时。

13. 发明授权

US5560755A Compositions useful as additives for lubricants and liquid fuels 失效
标题翻译：可用作润滑剂和液体燃料添加剂的组合物
公开(公告)号：US5560755A
公开(公告)日：1996-10-01
申请号：US460615
申请日：1995-06-02
申请人： Paul E. Adams , Richard M. Lange , Stephen H. Stoldt
发明人： Paul E. Adams , Richard M. Lange , Stephen H. Stoldt
IPC分类号： C07C59/13 , C07C235/34 , C07C235/86 , C07C263/14 , C07D233/64 , C08G65/26 , C10L1/18 , C10L1/183 , C10L1/188 , C10L1/19 , C10L1/198 , C10L1/223 , C10L1/224 , C10L1/23 , C10L1/232 , C10L1/24 , C10L10/08 , C10M129/38 , C10M129/68 , C10M133/16 , C10M133/44 , C10M133/46 , C10M133/48 , C10M133/56 , C10M133/58 , C10M135/36 , C10N30/04 , C10N40/25 , C10L1/22
CPC分类号： C10L1/183 , C10L1/1985 , C10L1/2235 , C10L1/231 , C10M133/46 , C10M133/56 , C10M133/58 , C10M135/36 , C10M2207/044 , C10M2215/04 , C10M2215/042 , C10M2215/08 , C10M2215/082 , C10M2215/26 , C10M2215/28 , C10M2217/046 , C10M2217/06 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： A composition comprising at least one compound of the general formula ##STR1## wherein each Ar is independently an aromatic group having from 4 to about 30 carbon atoms and from 0 to 3 optional substituents selected from the group consisting of amino, hydroxy- or alkyl-polyoxyalkyl, nitro, aminoalkyl, carboxy or combinations of two or more of said optional substituents, each R is independently a hydrocarbyl group, R.sup.1 is H or a hydrocarbyl group, R.sup.2 and R.sup.3 are each, independently, H or a hydrocarbyl group, R.sup.4 is a monovalent terminating group, each m is independently 0 or an integer ranging from 1 to about 10, x ranges from 0 to about 8, and each Z is independently OH, lower alkoxy, (OR.sup.5).sub.b OR.sup.6 or O.sup.-- wherein each R.sup.5 is independently a divalent hydrocarbyl group, R.sup.6 is H or hydrocarbyl and b is a number ranging from 1 to about 30 and c ranges from 1 to about 3, y is a number ranging from 1 to about 10 and wherein the sum m+c does not exceed the number of valences of the corresponding Ar available for substitution and at least one A is a group characterized by the formula ##STR2##
摘要翻译：一种组合物，其包含至少一种通式（I）的化合物，其中每个Ar独立地为具有4-30个碳原子的芳族基团和0-3个选自氨基，羟基 - 或烷基 - 聚氧基烷基，硝基，氨基烷基，羧基或两个或多个所述任选取代基的组合，每个R独立地是烃基，R 1是H或烃基，R 2和R 3各自独立地是H或烃基，R4是一价端基，每个m独立地为0或1至约10的整数，x为0至约8，Z各自独立地为OH，低级烷氧基，（OR 5）bOR 6或O-，其中每个 R5独立地为二价烃基，R6为H或烃基，b为1至约30的数，c为1至约3，y为1至约10的数，其中和m + c 不超过相应Ar的价数可用于替代，并且至少一个A是以式（II）为特征的组，

14. 发明授权

US5458793A Compositions useful as additives for lubricants and liquid fuels 失效
标题翻译：可用作润滑剂和液体燃料添加剂的组合物
公开(公告)号：US5458793A
公开(公告)日：1995-10-17
申请号：US61378
申请日：1993-05-13
申请人： Paul E. Adams , Richard M. Lange , Stephen H. Stoldt
发明人： Paul E. Adams , Richard M. Lange , Stephen H. Stoldt
IPC分类号： C07C59/13 , C07C235/34 , C07C235/86 , C07C263/14 , C07D233/64 , C08G65/26 , C10L1/18 , C10L1/183 , C10L1/188 , C10L1/19 , C10L1/198 , C10L1/223 , C10L1/224 , C10L1/23 , C10L1/232 , C10L1/24 , C10L10/08 , C10M129/38 , C10M129/68 , C10M133/16 , C10M133/44 , C10M133/46 , C10M133/48 , C10M133/56 , C10M133/58 , C10M135/36 , C10N30/04 , C10N40/25 , C10M133/38 , C07D233/00
CPC分类号： C10L1/183 , C10L1/1985 , C10L1/2235 , C10L1/231 , C10M133/46 , C10M133/56 , C10M133/58 , C10M135/36 , C10M2207/044 , C10M2215/04 , C10M2215/042 , C10M2215/08 , C10M2215/082 , C10M2215/26 , C10M2215/28 , C10M2217/046 , C10M2217/06 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10N2240/10 , C10N2240/101 , C10N2240/104 , C10N2240/106
摘要： A composition useful as a lubricating oil or fuel additive comprising at least one compound of the formula ##STR1## wherein each Ar is independently an aromatic group having from 4 to about 30 carbon atoms and from 0 to 3 optional substituents, each R is independently hydrocarbyl, R.sup.4 is a monovalent terminating group, each m is independently an integer ranging from 0 to about 10, x ranges from 0 to about 8, each Z is independently OH, lower alkoxy, (OR.sup.5).sub.b OR.sup.6 or 0.sup.- R.sup.1, R.sup.2, R.sup.3, and R.sup.6 are each independently, H or hydrocarbyl, b ranges from 1 to about 30, c from 1 to about 3, and y from 1 to about 10, the sum m+c does not exceed the number of valences of the corresponding Ar available for substitution and at least one A is the group ##STR2## wherein each R.sup.b, R.sup.c, R.sup.d and R.sup.e is independently H, hydroxyhydrocarbyl or hydrocarbyl,X is O, S or NR.sup.a wherein R.sup.a is H, hydrocarbyl, hydroxyhydrocarbyl, aminohydrocarbyl or ##STR3## wherein each Y is ##STR4## each R.sup.5 is independently a divalent hydrocarbyl group, each R.sup.7 is H, alkoxyalkyl, hydroxyalkyl, hydrocarbyl, aminohydrocarbyl, or N-alkoxyalkyl- or hydroxyalkyl- substituted amino-hydrocarbyl, a is a number ranging from 0 to about 100 and D is ##STR5##
摘要翻译：用作润滑油或燃料添加剂的组合物，其包含至少一种式（I）的化合物，其中每个Ar独立地为具有4至约30个碳原子的芳族基团和0至3个任选的取代基，每个R 独立地是烃基，R4是一价末端基团，每个m独立地为0至约10的整数，x为0至约8，Z各自独立地为OH，低级烷氧基，（OR 5）bOR 6或0 -R 1， R 2，R 3和R 6各自独立地为H或烃基，b为1至约30，c为1至约3，y为1至约10，总和m + c不超过相应的Ar可用于取代，并且至少一个A独立地为H，羟基烃基或烃基，X为O，S或NR a，其中R a为H，烃基，羟基烃基，氨基烃基或（III），其中每个Y为每个R 5独立地是二价烃基，每个R 7是H，烷氧基羟基烷基，烃基，氨基烃基或N-烷氧基烷基 - 或羟基烷基取代的氨基 - 烃基，a为0至约100的数，D为（IV）

15. 发明授权

US06559105B2 Lubricant compositions containing ester-substituted hindered phenol antioxidants 有权
标题翻译：含有酯取代的受阻酚抗氧化剂的润滑剂组合物
公开(公告)号：US06559105B2
公开(公告)日：2003-05-06
申请号：US09761432
申请日：2001-01-16
申请人： William D. Abraham , Paul E. Adams , Gordon D. Lamb , Thomas J. Wolak , Richard A. Denis , Jody A. Kocsis , James P. Roski , Virginia A. Carrick , Susan V. Cowling
发明人： William D. Abraham , Paul E. Adams , Gordon D. Lamb , Thomas J. Wolak , Richard A. Denis , Jody A. Kocsis , James P. Roski , Virginia A. Carrick , Susan V. Cowling
IPC分类号： C10M14102
CPC分类号： C12Q1/6883 , C07C67/347 , C10M129/10 , C10M129/40 , C10M129/76 , C10M133/52 , C10M135/10 , C10M137/10 , C10M141/06 , C10M141/08 , C10M141/10 , C10M159/16 , C10M159/20 , C10M159/22 , C10M159/24 , C10M163/00 , C10M2207/023 , C10M2207/026 , C10M2207/027 , C10M2207/028 , C10M2207/126 , C10M2207/26 , C10M2207/262 , C10M2207/287 , C10M2207/288 , C10M2207/289 , C10M2215/24 , C10M2217/043 , C10M2219/044 , C10M2219/046 , C10M2219/089 , C10M2223/045 , C10N2230/36 , C12Q2600/156 , C07C69/732
摘要： A composition of an antioxidant of the formula where R3 is an alkyl group of 2 to 6 carbon atoms, and a dispersant or a detergent, is a useful additive package for lubricant compositions.
摘要翻译：通式R 3的抗氧化剂的组合物是2〜6个碳原子的烷基，分散剂或洗涤剂是用于润滑剂组合物的有用的添加剂包。

16. 发明授权

US5830243A Fuel compositions containing N-substituted perahydro-s triazines 失效
标题翻译：燃料组合物含有N-取代的全氢三嗪
公开(公告)号：US5830243A
公开(公告)日：1998-11-03
申请号：US927734
申请日：1997-09-11
申请人： Thomas J. Wolak , Daniel T. Daly , Kurt F. Wollenberg , William D. Abraham , Paul E. Adams , Mitchell M. Jackson
发明人： Thomas J. Wolak , Daniel T. Daly , Kurt F. Wollenberg , William D. Abraham , Paul E. Adams , Mitchell M. Jackson
IPC分类号： C07D251/04 , C08G65/32 , C10L1/22 , C10L1/232 , C10L10/00 , C10L10/04
CPC分类号： C10L1/232 , C10L1/221 , C10L10/04
摘要： The present invention is directed to a composition made by reacting A) an aldehyde of 1 to 12 carbon atoms or a reactive equivalent thereof; and B) at least one etheramine represented by the formula R.sup.2 �O(CH.sub.2 CH(R)O).sub.n --R.sup.1 --NH.sub.2 !.sub.y(I) wherein each n is a number from 0 to about 50; each R is selected from the group consisting of hydrogen, hydrocarbyl groups of 1 to about 16 carbon atoms, and mixtures thereof; each R.sup.1 is selected from the group consisting of a hydrocarbylene group containing 2 to about 18 carbon atoms and a group represented by the formula ##STR1## wherein both R.sup.6 and R.sup.7 are hydrocarbylene groups of about 3 to about 10 carbon atoms and p is a number from 1 to 4; y is 1, 2, or 3; and each R.sup.2 is a hydrocarbyl group having a valence of y and containing 1 to about 50 carbon atoms when y is 1 and 1 to about 18 carbon atoms when y is 2 or 3; y is 1, 2, or 3; provided that when n is zero, y is 1. The reaction product can include a N-substituted perhydro-s-triazine represented by the formula ##STR2## Fuel additives containing these compositions are useful in reducing intake valve deposit and do not contribute to the increase in combustion chamber deposit in port fuel injected engines.
摘要翻译：本发明涉及通过使A）1至12个碳原子的醛或其活性当量反应而制备的组合物; 和B）由式R 2 [O（CH 2 CH（R）O）n -R 1 -NH 2] y（I）表示的至少一种醚胺，其中每个n为0至约50的数; 每个R选自氢，1至约16个碳原子的烃基，及其混合物; 每个R 1选自含有2至约18个碳原子的亚烃基和由下式表示的基团：其中R 6和R 7均为约3至约10个碳原子的亚烃基，p为数从1到4; y为1,2或3; 当y为2或3时，当y为1和约1至约18个碳原子时，每个R 2为价数为y且含有1至约50个碳原子的烃基; y为1,2或3; 条件是当n为0时，y为1.反应产物可包括由下式表示的N-取代的全氢-s-三嗪：含有这些组合物的燃料添加剂可用于减少进气阀沉积物，并且不对增加港口燃油喷射发动机的燃烧室沉积。

17. 发明授权

US06310009B1 Lubricating oil compositions containing saligenin derivatives 有权
标题翻译：含有盐霉素衍生物的润滑油组合物
公开(公告)号：US06310009B1
公开(公告)日：2001-10-30
申请号：US09761400
申请日：2001-01-16
申请人： Jody A. Kocsis , James P. Roski , Virginia A. Carrick , Richard A. Denis , Thomas J. Wolak , Gordon D. Lamb , Paul E. Adams , William D. Abraham , Susan V Cowling
发明人： Jody A. Kocsis , James P. Roski , Virginia A. Carrick , Richard A. Denis , Thomas J. Wolak , Gordon D. Lamb , Paul E. Adams , William D. Abraham , Susan V Cowling
IPC分类号： C10M12910
CPC分类号： C07C37/64 , C07C45/68 , C07C47/57 , C07C47/575 , C10M159/22 , C10M163/00 , C10M2207/028 , C10M2207/08 , C10M2207/289 , C10M2209/10 , C10M2209/101 , C10M2219/046 , C10N2210/02 , C10N2230/08 , C10N2230/10 , C10N2230/36 , C10N2260/10 , C10N2260/14 , C07C39/235
摘要： A saligenin derivative such as the magnesium salt represented by the formula is useful as an additive for a lubricating composition. Preferably X is —CHO or —CH2OH, and Y is —CH2— or —CH2OCH2—. R1 is a hydrocarbyl group containing 1 to 60 carbon atoms and m is 0 to 10. At least one aromatic ring should contain an R1 substituent and the total number of carbon atoms in all R1 groups should be at least 7.
摘要翻译：盐酸衍生物如由下式表示的镁盐可用作润滑组合物的添加剂。 X优选为-CHO或-CH 2 OH，Y为-CH 2 - 或-CH 2 OCH 2 - 。 R1是含有1至60个碳原子的烃基，m是0至10.至少一个芳环应含有R 1取代基，并且所有R 1基团中的总碳原子数应至少为7。

18. 发明授权

US06224642B1 Additive composition 有权
标题翻译：添加剂组成
公开(公告)号：US06224642B1
公开(公告)日：2001-05-01
申请号：US09448560
申请日：1999-11-23
申请人： Daniel T. Daly , Paul E. Adams , Mitchell M. Jackson
发明人： Daniel T. Daly , Paul E. Adams , Mitchell M. Jackson
IPC分类号： C10L118
CPC分类号： C10L10/08 , C10L1/143 , C10L1/1881 , C10L1/19 , C10L1/191 , C10L1/2225 , C10L1/224 , C10L1/238
摘要： This invention relates to a composition, comprising: (A) a compound represented by the formula RO(C4H8O)nCH2CH2CH2NH2 (I) wherein in formula (I), R is an aliphatic hydrocarbyl group of about 8 to about 30 carbon atoms, an n is a number in the range of about 12 to about 30; and (B) a compound selected from the group consisting of: a fatty acid; a fatty acid amide; a fatty acid ester; an amide, imide or ester derived from a hydrocarbyl substituted succinic acid or anhydride wherein the hydrocarbyl substituent has about 8 to about 30 carbon atoms; an alkoxylated amine, and mixtures of two or more thereof. The invention also relates to concentrates and fuels containing the foregoing composition.
摘要翻译：本发明涉及一种组合物，其包含：（A）由式（I）中的糠醛水合物表示的化合物，R为约8至约30个碳原子的脂族烃基，n为约12 至约30; 和（B）选自以下的化合物：脂肪酸; 脂肪酸酰胺; 脂肪酸酯; 衍生自烃基取代的琥珀酸或酐的酰胺，酰亚胺或酯，其中烃基取代基具有约8至约30个碳原子; 烷氧基化胺，以及其两种或多种的混合物。本发明还涉及含有上述组合物的浓缩物和燃料。

19. 发明授权

US4784782A Heterocyclic compounds useful as additives for lubricant and fuel compositions 失效
标题翻译：用作润滑剂和燃料组合物的添加剂的杂环化合物
公开(公告)号：US4784782A
公开(公告)日：1988-11-15
申请号：US845204
申请日：1986-03-27
申请人： Joseph W. Pialet , Paul E. Adams
发明人： Joseph W. Pialet , Paul E. Adams
IPC分类号： C10M133/38 , C07D211/60 , C10L1/22 , C10L1/224 , C10L1/232 , C10L1/24 , C10L1/26 , C10M133/40 , C10M133/44 , C10M133/58 , C10M135/32 , C10M135/34 , C10M137/12 , C10M137/14 , C10M159/12 , C10M159/16 , C10N30/00 , C10N30/02 , C10N30/04 , C10N30/06 , C10N30/10 , C10N30/12 , C10N40/25 , C10M133/00 , C10C1/14
CPC分类号： C10L10/08 , C07D211/60 , C10L1/232 , C10L1/245 , C10L1/2608 , C10L10/04 , C10M133/40 , C10M133/44 , C10M135/34 , C10M137/12 , C10M159/12 , C10M159/16 , C10M2215/22 , C10M2215/221 , C10M2215/225 , C10M2215/226 , C10M2215/30 , C10M2219/10 , C10M2219/102 , C10M2219/104 , C10M2219/106 , C10M2223/065
摘要： Various heterocyclic compounds have been discovered that impart improved fuel economy and friction modification to lubricant and fuel compositions. These hetrocyclic compounds of the invention preferably contain nitrogen and may be further reacted with hydrocarbyl carboxylic acid acylating reactants or hydrocarbyl phenolic reactants to give higher molecular materials. These higher molecular weight materials have higher oil-solubility and impart dispersancy properties to lubricant and fuel compositions.
摘要翻译：已经发现各种杂环化合物赋予润滑剂和燃料组合物改进的燃料经济性和摩擦改性。本发明的这些杂环化合物优选含有氮，并且可进一步与烃基羧酸酰化反应物或烃基酚反应物反应以得到较高分子量的物质。这些较高分子量的材料具有较高的油溶性并赋予润滑剂和燃料组合物分散性。

20. 发明申请

US20080015129A1 Method of Lubricating an Internal Combustion Engine and Improving the Efficiency of the Emissions Control System of the Engine 有权
标题翻译：内燃机润滑方法，提高发动机排放控制系统的效率
公开(公告)号：US20080015129A1
公开(公告)日：2008-01-17
申请号：US11457863
申请日：2006-07-17
申请人： Saleem Al-Ahmad , Melody A. Wilk , Jack Kelley , John K. Pudelski , Paul E. Adams , Ewa Bardasz
发明人： Saleem Al-Ahmad , Melody A. Wilk , Jack Kelley , John K. Pudelski , Paul E. Adams , Ewa Bardasz
IPC分类号： C10M137/10
CPC分类号： C10M137/10 , C10M2215/28 , C10M2219/046 , C10M2223/045 , C10N2230/38 , C10N2230/42 , C10N2240/10 , C10N2210/02
摘要： An internal combustion engine with a catalyst-containing exhaust-gas aftertreatment device is lubricated with a composition of a base oil; and a zinc salt of a mixture of phosphorus-containing compounds having hydrocarbyl groups R1 and R2 where the average total number of carbon atoms in R1 plus R2 for the mixture of phosphorus-containing compounds is at least 9.5, where 4 to 30 weight percent of such groups contain 2 to 4 carbon atoms and where in less than 8 mole percent of the phosphorus-containing molecules in the mixture of phosphorus-containing compounds each of R1 and R2 contain 2 to 4 carbon atoms.
摘要翻译：具有含催化剂的废气后处理装置的内燃机用基油的组成进行润滑; 和具有烃基R 1和R 2的含磷化合物的混合物的锌盐，其中R 1中的平均总碳原子数< 含磷化合物的混合物的SUP> plus R 2至少为9.5，其中4至30重量％的这些基团含有2至4个碳原子，并且其中少于8摩尔％ R 1和R 2各自含磷化合物的混合物中的含磷分子含有2至4个碳原子。

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