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51 条记录 (耗时 0.025 秒)

    Process for the preparation of stilbenedicarboxylate esters
    31.
    发明授权
    Process for the preparation of stilbenedicarboxylate esters 失效
    二苯乙烯二羧酸酯的制备方法

    公开(公告)号：US5473098A

    公开(公告)日：1995-12-05

    申请号：US398840

    申请日：1995-03-06

    申请人： Richard H. S. Wang ,  Carl A. Bryan, Jr. ,  Bill A. Eller

    发明人： Richard H. S. Wang ,  Carl A. Bryan, Jr. ,  Bill A. Eller

    IPC分类号： C07B61/00 ,  C07C67/343 ,  C07C69/76 ,  C07F9/141

    CPC分类号： C07C67/343

    摘要： Disclosed is a process for the preparation of 4,4'-stilbenedicarboxylate esters by a 4-step process starting with an alkyl p-formylbenzoate and utilizing intermediate phosphite and phosphonate compounds. The steps comprise(1) preparing an alkyl p-(hydroxymethyl)benzoate by hydrogenating an alkyl p-formylbenzoate;(2) contacting the alkyl p-(hydroxymethyl)benzoate of step (1) with a trialkyl phosphite to obtain a phosphite ester compound having the formula: ##STR1## (3) contacting the phosphite ester of step (2) with a catalytic amount of iodine to rearrange the phosphite ester to the corresponding phosphonate ester;and(4) contacting the phosphonate ester compound of step (3) with an alkyl p-formylbenzoate in the presence of an alkali metal alkoxide and an inert solvent to obtain the dialkyl 4,4'-stilbenedicarboxylate.

    摘要翻译： 公开了一种通过四步法由对位甲酰基苯甲酸烷基酯和利用中间体亚磷酸酯和膦酸酯化合物制备4,4'-二苯乙烯二羧酸酯的方法。 步骤包括（1）通过氢化对甲酰基苯甲酸烷基酯制备对 - （羟甲基）苯甲酸烷基酯; （2）使步骤（1）的对 - （羟甲基）苯甲酸烷基酯与亚磷酸三烷基酯接触，得到具有下式的亚磷酸酯化合物：（3）使步骤（2）的亚磷酸酯与催化量 的碘以将亚磷酸酯重排为相应的膦酸酯; 和（4）在碱金属醇盐和惰性溶剂的存在下使步骤（3）的膦酸酯化合物与对甲酰基苯甲酸烷基酯接触，得到4,4'-二苯乙烯二酸二烷基酯。

    Biheterocyclic ultraviolet stabilizers and their use in organic compositions
    34.
    发明授权
    Biheterocyclic ultraviolet stabilizers and their use in organic compositions 失效
    双杂环紫外线稳定剂及其在有机组合物中的应用

    公开(公告)号：US4182703A

    公开(公告)日：1980-01-08

    申请号：US867846

    申请日：1978-01-09

    申请人： Gether Irick, Jr. ,  James C. Ownby ,  Richard H. S. Wang

    发明人： Gether Irick, Jr. ,  James C. Ownby ,  Richard H. S. Wang

    IPC分类号： C08K5/35 ,  C08K5/45 ,  C07D413/12 ,  C07D417/12 ,  C08K5/46

    CPC分类号： C08K5/35

    摘要： The invention relates to biheterocyclic compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the biheterocyclic composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

    摘要翻译： 本发明涉及已被发现是有效的紫外线稳定剂的双杂环化合物。 本发明还涉及含有稳定量的双杂环组合物以防止这种降解的紫外可降解有机组合物。 这些稳定剂在通常用于聚合物组合物中的其它添加剂的存在下是有效的，包括例如颜料，着色剂，填料，增强剂等。 这些紫外线稳定剂也可以掺入聚合物熔体中的有机组合物中或溶解在聚合物涂料中，涂覆在模塑制品，薄膜或挤出纤维的外部上。

    Piperidinyl hydrogen alkylene or arylene phosphates and metal salts thereof which compounds are useful as ultraviolet stabilizers for organic compositions
    35.
    发明授权
    Piperidinyl hydrogen alkylene or arylene phosphates and metal salts thereof which compounds are useful as ultraviolet stabilizers for organic compositions 失效
    苯乙烯氢化亚烷基或亚磺酸磷酸盐及其金属盐，其化合物可用作有机组合物的超紫外线稳定剂

    公开(公告)号：US4136083A

    公开(公告)日：1979-01-23

    申请号：US906397

    申请日：1978-05-16

    申请人： Gether Irick, Jr. ,  Richard H. S. Wang

    发明人： Gether Irick, Jr. ,  Richard H. S. Wang

    IPC分类号： C08K5/529 ,  C08K5/34

    CPC分类号： C08K5/529

    摘要： The invention relates to piperidinyl hydrogen alkylene or arylene phosphates which have been found to be effective ultraviolet stabilizers. The invention also relates to piperidinyl hydrogen alkylene or arylene phosphate salts which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable or organic compositions containing a stabilizing amount of the piperidinyl hydrogen alkylene or arylene phosphates or salts thereof to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, or coated on the exterior of the molded article, film or extruded fiber.

    Polychromophoric ultraviolet stabilizers and their use in organic compositions
    36.
    发明授权
    Polychromophoric ultraviolet stabilizers and their use in organic compositions 失效
    多色紫外线稳定剂及其在有机组合物中的应用

    公开(公告)号：US4127501A

    公开(公告)日：1978-11-28

    申请号：US713000

    申请日：1976-08-09

    申请人： Richard H. S. Wang ,  Joseph S. Zannucci

    发明人： Richard H. S. Wang ,  Joseph S. Zannucci

    IPC分类号： A61K8/49 ,  A61Q17/04 ,  C08K5/01 ,  C08K5/353 ,  C09K15/30 ,  C09K15/20 ,  C07D249/18 ,  C07D277/82 ,  C08K5/35

    CPC分类号： C08K5/353 ,  A61K8/49 ,  A61K8/492 ,  A61K8/4946 ,  A61K8/496 ,  A61Q17/04 ,  A61K2800/438

    摘要： The invention relates to polychromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the polychromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

    摘要翻译： 本发明涉及已被发现是有效的紫外线稳定剂的多色性化合物。 本发明还涉及含有稳定量的多色荧光组合物以防止这种降解的紫外线可降解有机组合物。 这些稳定剂在通常用于聚合物组合物中的其它添加剂的存在下是有效的，包括例如颜料，着色剂，填料，增强剂等。 这些紫外线稳定剂也可以掺入聚合物熔体中的有机组合物中或溶解在聚合物涂料中，涂覆在模塑制品，薄膜或挤出纤维的外部上。

    Synergistic combination of alkoxy-substituted phosphonitrilic compounds and ortho-hindered phenolic antioxidants
    37.
    发明授权
    Synergistic combination of alkoxy-substituted phosphonitrilic compounds and ortho-hindered phenolic antioxidants 失效
    烷氧基取代的膦酸化合物和邻位酚类抗氧化剂的协同组合

    公开(公告)号：US4080361A

    公开(公告)日：1978-03-21

    申请号：US741905

    申请日：1976-11-15

    申请人： Richard H. S. Wang ,  Gether Irick, Jr.

    发明人： Richard H. S. Wang ,  Gether Irick, Jr.

    IPC分类号： C07F9/40 ,  C07F9/6593 ,  C08G79/02 ,  C08K5/00 ,  C08L23/02 ,  C08K5/51

    CPC分类号： C08K5/00 ,  C07F9/4056 ,  C07F9/65815 ,  C08G79/025 ,  C08L23/02

    摘要： A stabilizer combination for use in improving the resistance of olefin polymers to deterioration and physical properties on exposure to heat comprising A) an organic phosphonitrilic composition derived from a triphosphonitrilic halide and an hydroxy compound selected from alcohols containing one to about 20 carbon atoms and diols having the formula ##STR1## wherein X is a covalent bound or alkylene of 1 to about 12 carbon atoms, R.sub.1 and R.sub.2 are the same or different as hydrogen or alkyl having 1 to about 6 carbon atoms, and n is an integer from 1 to about 200; and B) from about 0.1 to about 25 parts by weight of an ortho-hindered phenolic primary antioxidant.

    摘要翻译： 一种稳定剂组合，用于提高烯烃聚合物对暴露于热的劣化和物理性能的抵抗性，其包括A）衍生自三膦酰卤和选自含有1至约20个碳原子的醇的羟基化合物的有机膦酰基组合物和具有 其中X是1至约12个碳原子的共价结合或亚烷基的式“IMAGE”，R 1和R 2与氢或具有1至约6个碳原子的烷基相同或不同，n为1至约1的整数 200; 和B）约0.1至约25重量份的邻位酚酚主抗氧化剂。

    Multichromophoric benzotriazole ultraviolet stabilizers and their use in organic compositions
    38.
    发明授权
    Multichromophoric benzotriazole ultraviolet stabilizers and their use in organic compositions 失效
    多色性苯并三唑紫外线稳定剂及其在有机组合物中的应用

    公开(公告)号：US4073745A

    公开(公告)日：1978-02-14

    申请号：US687080

    申请日：1976-05-14

    申请人： Richard H. S. Wang ,  Joseph S. Zannucci

    发明人： Richard H. S. Wang ,  Joseph S. Zannucci

    IPC分类号： C07D249/20 ,  C08K5/3442 ,  C08K5/3475 ,  C09K15/30 ,  C09K15/32 ,  C08K5/34

    CPC分类号： C08K5/3442 ,  C07D249/20 ,  C08K5/3475 ,  C09K15/30

    摘要： The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composition to prevent such degradation. These stabilizers are effective in the presence of other additives commonly employed in polymeric compositions including, for example, pigments, colorants, fillers, reinforcing agents and the like. These ultraviolet stabilizers may also be incorporated into the organic compositions in the polymer melt or dissolved in the polymer dope, coated on the exterior of the molded article, film or extruded fiber.

    摘要翻译： 本发明涉及已被发现是有效的紫外线稳定剂的多色素化合物。 本发明还涉及含有稳定量的多色母体组合物以防止这种降解的紫外可降解有机组合物。 这些稳定剂在通常用于聚合物组合物中的其它添加剂的存在下是有效的，包括例如颜料，着色剂，填料，增强剂等。 这些紫外线稳定剂也可以掺入聚合物熔体中的有机组合物中或溶解在聚合物涂料中，涂覆在模塑制品，薄膜或挤出纤维的外部上。