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1. 发明授权

US4177211A Process for the preparation of bis(aminophenyl)alkanes 失效
标题翻译：制备双（氨基苯基）烷烃的方法
公开(公告)号：US4177211A
公开(公告)日：1979-12-04
申请号：US898646
申请日：1978-04-21
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： C07C41/30 , C07C43/205 , C07C209/18 , C07C209/64 , C07C209/68 , C07D493/04 , C07C85/02
CPC分类号： C07D493/04 , C07C209/18 , C07C209/64 , C07C209/68 , C07C41/30
摘要： An improved process is described for the preparation of bis(aminophenyl)alkanes which comprises heating the corresponding bis(di-alkoxyphenyl)alkane or corresponding cyclic ethers of bis(phenyl)alkanes with an at least stoichiometric proportion of an aniline acid addition salt, optionally in the presence of an inert organic solvent.
摘要翻译：描述了用于制备双（氨基苯基）烷烃的改进方法，其包括用至少化学计量比例的苯胺酸加成盐加热相应的双（二烷氧基苯基）烷烃或相应的双（苯基）烷烃的环醚，任选地在惰性有机溶剂的存在下。

2. 发明授权

US4028361A Process for the purification of MDA 失效
标题翻译：纯化MDA的方法
公开(公告)号：US4028361A
公开(公告)日：1977-06-07
申请号：US605751
申请日：1975-08-18
申请人： Adnan A. R. Sayigh , Kwok K. Sun , Henri Ulrich
发明人： Adnan A. R. Sayigh , Kwok K. Sun , Henri Ulrich
IPC分类号： C07C85/16
CPC分类号： C07C209/78
摘要： A process is described for the selective removal of 2,2'- and 2,4'-diaminodiphenylmethane from mixtures thereof with the corresponding 4,4'-isomer by heating the mixture of isomers in the presence of a 1,3,5-tri-arylhexahydro-1,3,5-triazine and a catalyst (aqueous mineral acid). The process is particularly useful in facilitating the isolation of substantially pure 4,4'-isomer from the aniline-formaldehyde condensation. The pure 4,4'-isomer is a valuable intermediate for polyamides as well as for the corresponding diisocyanate. The by-products of the reaction are oligomeric polymethylene polyphenyl polyamines which are also useful as curing agents and intermediates for polymethylene polyphenyl polyisocyanates and the like.
摘要翻译：描述了一种方法，用于通过在存在1,3,5-三氯苯的情况下加热异构体的混合物，从相应的4,4'-异构体的混合物中选择性除去2,2'-和2,4'-二氨基二苯基甲烷，三芳基六氢-1,3,5-三嗪和催化剂（无机酸水溶液）。该方法特别可用于促进基本上纯的4,4'-异构体与苯胺 - 甲醛缩合物的分离。纯4,4'-异构体是聚酰胺以及相应的二异氰酸酯的有价值的中间体。反应的副产物是低聚多亚甲基多苯基多胺，其也可用作聚亚甲基多苯基多异氰酸酯等的固化剂和中间体。

3. 发明授权

US4868225A Novel product 失效
标题翻译：新产品
公开(公告)号：US4868225A
公开(公告)日：1989-09-19
申请号：US232051
申请日：1988-08-15
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： C08G18/32 , C08G18/65
CPC分类号： C08G18/3243 , C08G18/6529 , C08G2120/00
摘要： Novel meta phenylenediamines are provided having one or two particular benzyl radicals as substituents along with other optional substituents on the aromatic diamine ring and optionally substituents on the benzyl aromatic ring.The diamines are sterically hindered and thereby have lower amine reactivity as compared with the unsubstituted diamines.The diamines are useful as curing agents for epoxy resins and find particular utility as extenders in the formation of novel polyurethane-polyurea polymers.
摘要翻译：提供了具有一个或两个特定苄基作为取代基的新型亚苯基二胺以及芳族二胺环上的其它任选的取代基和苄基芳香环上任选的取代基。与未取代的二胺相比，二胺是空间位阻的，因此具有较低的胺反应性。二胺可用作环氧树脂的固化剂，并且在形成新型聚氨酯 - 聚脲聚合物时特别用作增量剂。

4. 发明授权

US4866208A Meta-phenylene diamine derivatives 失效
标题翻译：间苯二胺衍生物
公开(公告)号：US4866208A
公开(公告)日：1989-09-12
申请号：US232036
申请日：1988-08-15
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： C08G18/32 , C08G18/65
CPC分类号： C08G18/6529 , C08G18/3243 , C08G2120/00
摘要： Novel meta phenylenediamines are provided having one or two particular benzyl radicals as substituents along with other optional substituents on the aromatic diamine ring and optionally substituents on the benzyl aromatic ring.The diamines are sterically hindered and thereby have lower amine reactivity as compared with the unsubstituted diamines.The diamines are useful as curing agents for epoxy resins and find particular utility as extenders in the formation of novel polyurethane-polyurea polymers.
摘要翻译：提供了具有一个或两个特定苄基作为取代基的新型亚苯基二胺以及芳族二胺环上的其它任选的取代基和苄基芳香环上任选的取代基。与未取代的二胺相比，二胺是空间位阻的，因此具有较低的胺反应性。二胺可用作环氧树脂的固化剂，并且在形成新型聚氨酯 - 聚脲聚合物时特别用作增量剂。

5. 发明授权

US4607093A Sydnone based polyimide 失效
标题翻译： Sydnone基聚酰亚胺
公开(公告)号：US4607093A
公开(公告)日：1986-08-19
申请号：US720778
申请日：1985-04-08
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： C08G73/10
CPC分类号： C08G73/1085
摘要： Novel amorphous polyimides are provided which are formed by the polymerization of bismaleimides with sydnones wherein carbon dioxide is evolved.The polyimides are readily soluble in dipolar aprotic solvents and are further characterized by high temperature stability to at least 300.degree. C.The polymers find particular utility in the form of films and solutions useful for wire enamel and electrical coatings.
摘要翻译：提供了通过双马来酰亚胺与其中二氧化碳放出的钠离子聚合形成的新型无定形聚酰亚胺。聚酰亚胺易溶于偶极非质子传递溶剂，其进一步特征在于至少300℃的高温稳定性。该聚合物特别适用于用于电线漆和电涂层的膜和溶液的形式。

6. 发明授权

US5418054A Flame-retardant, waterproof and breathable expanded PTFE laminate 失效
标题翻译：阻燃，防水透气膨胀PTFE层压板
公开(公告)号：US5418054A
公开(公告)日：1995-05-23
申请号：US33652
申请日：1993-03-16
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： A41D31/00 , B32B5/32 , B32B7/12 , B32B27/30 , C08G18/12 , C08G18/50 , C09J171/00 , C09J171/02 , C09J175/00 , C09J175/04 , B32B5/14 , B27N9/00 , C09K21/00
CPC分类号： C09J175/04 , A41D31/0027 , B32B5/32 , C08G18/12 , C08G18/5084 , Y10S428/92 , Y10T428/249958 , Y10T428/249982 , Y10T428/31544 , Y10T428/31551
摘要： A waterproof and breathable flame-retardant laminate of two layers of porous expanded polytetrafluoroethylene laminated together by a flame-retardant adhesive layer of poly(urea-urethane) polymer containing phosphorus ester groups built into the chains of the polymer. The flame-retardant components do not wash out of the adhesive and laminate under repeated laundering or dry cleaning.
摘要翻译：通过聚合物链内聚有含磷酯基的聚（尿素 - 氨基甲酸酯）聚合物的阻燃粘合剂层将两层多孔膨体聚四氟乙烯层压在一起的防水透气阻燃层压体。阻燃组分在反复洗涤或干洗下不会从粘合剂和层压材料中洗掉。

7. 发明授权

US4052466A Process for the preparation of bisphenol-A 失效
标题翻译：制备双酚A的方法
公开(公告)号：US4052466A
公开(公告)日：1977-10-04
申请号：US726835
申请日：1976-09-27
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： C07C27/00 , C07C37/20 , C07C39/16 , C07C67/00 , C07C37/00
CPC分类号： C07C37/20
摘要： The use of certain dihydric phenols, alkyl ethers thereof, and alkyl-substituted monohydric phenols, as promoters in the acid catalyzed condensation of phenol and acetone to form Bisphenol-A enables said reaction to be carried out more rapidly, at significantly lower temperatures in some instances, with greater selectivity, i.e. reduction in proportion of undesired by-product, and most significantly, with the use of only catalytic amounts of mineral acid (instead of the large quantity in the conventional process) or the use of the inexpensive solid catalysts, such as acidic clays, which due to their low catalytic ability, are not useful as sole catalyst for this condensation if the promoter is not present. The promoters are readily recoverable for re-use.

8. 发明授权

US4029705A Purification process for MDA 失效
标题翻译： MDA的净化过程
公开(公告)号：US4029705A
公开(公告)日：1977-06-14
申请号：US605753
申请日：1975-08-18
申请人： Adnan A. R. Sayigh , Kwok K. Sun , Henri Ulrich
发明人： Adnan A. R. Sayigh , Kwok K. Sun , Henri Ulrich
IPC分类号： C07C85/16
CPC分类号： C07C209/78
摘要： A process is described for the selective removal of 2,2'- and 2,4'-diaminodiphenylmethanes from mixtures containing 2,2'-, 2,4'- and 4,4'-diaminodiphenylmethanes and polyamines by heating these mixtures in the presence of aqueous hydrochloric acid (55 to 95 percent by equivalents based on the total amine in the starting material) and formaldehyde. The process is particularly useful to facilitate the isolation of substantially pure 4,4'-isomer from aniline-formaldehyde condensation products. The pure 4,4'-isomer is a valuable intermediate for polyamides as well as for the corresponding diisocyanate. The by-products of the reaction are oligomeric polymethylene polyphenyl polyamines which are also useful as curing agents and intermediates for polymethylene polyphenyl polyisocyanates and the like.
摘要翻译：描述了从含有2,2'-，2,4'-和4,4'-二氨基二苯基甲烷和多胺的混合物中选择性除去2,2'-和2,4'-二氨基二苯基甲烷的方法，通过加热这些混合物存在盐酸水溶液（相对于原料中的总胺为55〜95％当量）和甲醛。该方法特别有助于从苯胺 - 甲醛缩合产物中分离基本上纯的4,4'-异构体。纯4,4'-异构体是聚酰胺以及相应的二异氰酸酯的有价值的中间体。反应的副产物是低聚多亚甲基多苯基多胺，其也可用作聚亚甲基多苯基多异氰酸酯等的固化剂和中间体。

9. 发明授权

US4008275A Process for isolating 4,4'-diaminodiphenylmethane 失效
标题翻译：分离4,4 {40-二氨基二苯基甲烷的方法
公开(公告)号：US4008275A
公开(公告)日：1977-02-15
申请号：US605752
申请日：1975-08-18
申请人： Adnan A. R. Sayigh , Kwok K. Sun , Henri Ulrich
发明人： Adnan A. R. Sayigh , Kwok K. Sun , Henri Ulrich
IPC分类号： C07C85/26
CPC分类号： C07C209/78
摘要： 2,2'- AND 2,4'-DIAMINODIPHENYLMETHANE ARE SELECTIVELY REMOVED FROM ADMIXTURES THEREOF WITH THE 4,4'-ISOMER BY HEATING THE ISOMER MIXTURE AT 30.degree. TO 100.degree. C in the presence of styrene, .alpha.-alkylstyrenes, or the mono- or diamino nuclear substituted derivatives thereof and a catalyst (mineral acid, clays, diatomaceous earth, zeolites). The styrene or .alpha.-alkylstyrene can be employed as such or generated in situ from a precursor therefor. The process is particularly useful in facilitating the isolation of substantially pure 4,4'-diaminodiphenylmethane from the polyamine mixture obtained by condensation of aniline and formaldehyde.
摘要翻译：通过在苯乙烯，α-烷基苯乙烯存在下，在30℃至100℃下加热异构体混合物，可以从4,4'-异构体的形式中选择性地除去2,2'-和2,4'-二氨基二苯基甲烷。单 - 或二氨基核取代衍生物和催化剂（无机酸，粘土，硅藻土，沸石）。苯乙烯或α-烷基苯乙烯可以原样使用或从其前体原位产生。该方法特别有助于从通过苯胺和甲醛的缩合得到的多胺混合物中分离出基本上纯的4,4'-二氨基二苯基甲烷。

10. 发明授权

US4792623A Meta-phenylene-diamines 失效
标题翻译：间亚苯基二胺
公开(公告)号：US4792623A
公开(公告)日：1988-12-20
申请号：US424347
申请日：1982-09-27
申请人： Kwok K. Sun
发明人： Kwok K. Sun
IPC分类号： C08G18/32 , C08G18/65 , C07C87/50 , C07C87/64
CPC分类号： C08G18/6529 , C08G18/3243 , C08G2120/00
摘要： Novel meta phenylenediamines are provided having one or two particular benzyl radicals as substituents along with other optional substituents on the aromatic diamine ring and optionally substituents on the benzyl aromatic ring.The diamines are sterically hindered and thereby have lower amine reactivity as compared with the unsubstituted diamines.The diamines are useful as curing agents for epoxy resins and find particular utility as extenders in the formation of novel polyurethane-polyurea polymers.
摘要翻译：提供了具有一个或两个特定苄基作为取代基的新型亚苯基二胺以及芳族二胺环上的其它任选的取代基和苄基芳香环上任选的取代基。与未取代的二胺相比，二胺是空间位阻的，因此具有较低的胺反应性。二胺可用作环氧树脂的固化剂，并且在形成新型聚氨酯 - 聚脲聚合物时特别用作增量剂。

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