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1. 发明授权

US06395871B1 Methods for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions 有权
标题翻译：用于制备烷基化催化剂和用于邻羟基芳族化合物的邻烷基化的方法; 和相关组合物
公开(公告)号：US06395871B1
公开(公告)日：2002-05-28
申请号：US09691320
申请日：2000-10-18
申请人： Beth A. Watson , Narsi Devanathan
发明人： Beth A. Watson , Narsi Devanathan
IPC分类号： C08F606
CPC分类号： B01J23/72 , B01J21/10 , B01J37/0018
摘要： A method for preparing a solid catalyst composition is described. A magnesium reagent which yields magnesium oxide upon calcination, and which includes reduced levels of chlorides and calcium, is dry-blended with at least one filler. Dry-blending is usually carried out in the absence of a promoter. A method for selectively alkylating at least one hydroxyaromatic compound by using the catalyst is also described. A typical product is 2,6-xylenol. Related processes for preparing polyphenylene ethers are described.
摘要翻译：描述了制备固体催化剂组合物的方法。在煅烧时产生氧化镁并且包括降低的氯化物和钙水平的镁试剂与至少一种填料干混。干混通常在不存在促进剂的情况下进行。还描述了通过使用催化剂选择性烷基化至少一种羟基芳族化合物的方法。典型的产品是2,6-二甲苯酚。描述了制备聚苯醚的相关方法。

2. 发明授权

US06261987B1 Method for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions 有权
标题翻译：烷基化催化剂的制备方法和羟基芳族化合物的正烷基化方法; 和相关组合物
公开(公告)号：US06261987B1
公开(公告)日：2001-07-17
申请号：US09515466
申请日：2000-02-29
申请人： Beth A. Watson , Narsi Devanathan
发明人： Beth A. Watson , Narsi Devanathan
IPC分类号： B01J2110
CPC分类号： B01J23/72 , B01J21/10 , B01J37/0018
摘要： A method for preparing a solid catalyst composition is described. A magnesium reagent which yields magnesium oxide upon calcination, and which includes reduced levels of chlorides and calcium, is dry-blended with at least one filler. Dry-blending is usually carried out in the absence of a promoter. A method for selectively alkylating at least one hydroxyaromatic compound by using the catalyst is also described. A typical product is 2,6-xylenol. Related processes for preparing polyphenylene ethers are described.
摘要翻译：描述了制备固体催化剂组合物的方法。在煅烧时产生氧化镁并且包括降低的氯化物和钙水平的镁试剂与至少一种填料干混。干混通常在不存在促进剂的情况下进行。还描述了通过使用催化剂选择性烷基化至少一种羟基芳族化合物的方法。典型的产品是2,6-二甲苯酚。描述了制备聚苯醚的相关方法。

3. 发明授权

US06620908B2 Method for making 2,6-xylenol 有权
公开(公告)号：US06620908B2
公开(公告)日：2003-09-16
申请号：US10063003
申请日：2002-03-11
申请人： Beth A. Watson , Narsi Devanathan
发明人： Beth A. Watson , Narsi Devanathan
IPC分类号： C08F606
CPC分类号： B01J23/72 , B01J21/10 , B01J37/0018
摘要： A method for making 2,6-xylenol is described. One embodiment of the method comprises: preparing a magnesium-based solid catalyst composition by dry-blending basic magnesium carbonate with at least one filler; forming the catalyst composition into a suitable catalyst-shape; calcining the shaped catalyst at a temperature in the range of about 350° C. to about 550° C.; and reacting phenol and methanol in the presence of the catalyst, to form 2,6-xylenol. The level of chlorides in the magnesium carbonate is less than about 250 ppm, and the level of calcium in the magnesium carbonate is less than about 2,500 ppm.

4. 发明授权

US06294499B1 Methods for preparing an alkylation catalyst, and for ortho-alkylating hydroxyaromatic compounds; and related compositions 有权
标题翻译：用于制备烷基化催化剂和用于邻羟基芳族化合物的邻烷基化的方法; 和相关组合物
公开(公告)号：US06294499B1
公开(公告)日：2001-09-25
申请号：US09693720
申请日：2000-10-20
申请人： Beth A. Watson , Narsi Devanathan
发明人： Beth A. Watson , Narsi Devanathan
IPC分类号： B01J2110
CPC分类号： B01J23/72 , B01J21/10 , B01J37/0018
摘要： A method for preparing a solid catalyst composition is described. A magnesium reagent which yields magnesium oxide upon calcination, and which includes reduced levels of chlorides and calcium, is dry-blended with at least one filler. Dry-blending is usually carried out in the absence of a promoter. A method for selectively alkylating at least one hydroxyaromatic compound by using the catalyst is also described. A typical product is 2,6-xylenol. Related processes for preparing polyphenylene ethers are described.
摘要翻译：描述了制备固体催化剂组合物的方法。在煅烧时产生氧化镁并且包括降低的氯化物和钙水平的镁试剂与至少一种填料干混。干混通常在不存在促进剂的情况下进行。还描述了通过使用催化剂选择性烷基化至少一种羟基芳族化合物的方法。典型的产品是2,6-二甲苯酚。描述了制备聚苯醚的相关方法。

5. 发明授权

US06492300B2 Methods for preparing polyphenylene ether resin 有权
公开(公告)号：US06492300B2
公开(公告)日：2002-12-10
申请号：US10063002
申请日：2002-03-11
申请人： Beth A. Watson , Narsi Devanathan
发明人： Beth A. Watson , Narsi Devanathan
IPC分类号： C08J300
CPC分类号： B01J23/72 , B01J21/10 , B01J37/0018
摘要： A method for preparing a polyphenylene ether resin is described. In one embodiment the method comprises: preparing a magnesium-based alkylation catalyst, by dry-blending at least one filler with a magnesium reagent which yields magnesium oxide upon calcination; calcining the alkylation catalyst; reacting a phenolic compound and an alkyl alcohol in the presence of the alkylation catalyst, to form a 2,6-alkyl-disubstituted phenolic compound; and oxidatively coupling the 2,6-alkyl-disubstituted phenolic compound in the presence of a suitable polymerization catalyst, to form the polyphenylene ether resin.

6. 发明授权

US06306963B1 Thermosetting resins and laminates 失效
标题翻译：热固性树脂和层压板
公开(公告)号：US06306963B1
公开(公告)日：2001-10-23
申请号：US09657648
申请日：2000-09-07
申请人： Scott A. Lane , Timothy W. Austill , Donald C. Rollen , Herbert Shin-I Chao , Kenneth P. Zarnoch , Hua Guo , David Parrillo , David Peter Reis , Narsi Devanathan , Benny David
发明人： Scott A. Lane , Timothy W. Austill , Donald C. Rollen , Herbert Shin-I Chao , Kenneth P. Zarnoch , Hua Guo , David Parrillo , David Peter Reis , Narsi Devanathan , Benny David
IPC分类号： C08G6391
CPC分类号： C08F290/067 , C08F290/061 , C08L71/126 , H05K1/0353 , C08L2666/04
摘要： Thermosetting polymers and the electrical laminates made therefrom are disclosed. The laminate comprises a cross-linked product of: a) one or more ethylenically unsaturated aromatic monomers, with fire retardation being optionally contributed by one halogenated monomer, b) a vinyl-terminated polybutadiene or butadiene-styrene copolymer containing either a urethane or an ester group, and c) a chemically modified polyphenylene ether resin, preferably low molecular weight chemically modified polyphenylene ether resin. It has been discovered that an unexpected combination of thermal, electrical, and mechanical properties are obtained from the composition recited herein. Therefore, the composition is ideally suited as a matrix polymer for electrical substrate applications.
摘要翻译：公开了热固性聚合物和由其制成的电层压材料。层压体包含交联产物：a）一种或多种烯键式不饱和芳族单体，其阻燃作用由一种卤化单体任选地提供，b）乙烯基封端的聚丁二烯或含有氨基甲酸酯或酯的丁二烯 - 苯乙烯共聚物并且c）化学改性的聚苯醚树脂，优选低分子化学改性的聚苯醚树脂。已经发现，从本文所述的组合物获得热，电和机械性能的意想不到的组合。因此，该组合物理想地适用于电气基底应用的基质聚合物。

7. 发明授权

US09139932B2 Quartz glass crucible and method for treating surface of quartz glass crucible 有权
标题翻译：石英玻璃坩埚及石英玻璃坩埚表面处理方法
公开(公告)号：US09139932B2
公开(公告)日：2015-09-22
申请号：US11899786
申请日：2007-09-07
申请人： Richard Lee Hansen , Theodore P. Kircher , Narsi Devanathan
发明人： Richard Lee Hansen , Theodore P. Kircher , Narsi Devanathan
IPC分类号： C30B15/10 , C03C17/30 , C30B29/06 , C30B35/00
CPC分类号： C30B15/10 , C03C17/30 , C03C2218/31 , C30B29/06 , C30B35/002 , Y10T117/1024 , Y10T428/31612
摘要： There is provided a quartz glass article having a surface treated with novel coating materials which provides a reduced chemistry, wherein the quartz glass surface having a reduced chemistry upon exposure to melted silicon or similarly corrosive environments, forms crystalline structures covering at least 30% of the coated surface of the quartz glass crucible. Said crystalline covered surface provides a more stable surface of contact with the silicon melt and the growth of single crystal silicon. In one embodiment of the invention, the coating material comprises at least a methyl group for providing at least one of a hydrogenated and a methylated surface on the coated surface, forming rosette structures, or other crystalline morphologies covering at last 80% of the coated surface. In another embodiment of the invention, the coating material is selected from at least one of an amine, an organosilane halogen and mixtures thereof.
摘要翻译：提供了一种石英玻璃制品，其具有用新的涂层材料处理的表面，其提供减少的化学性质，其中在暴露于熔融硅或类似的腐蚀性环境时具有化学成分降低的石英玻璃表面形成覆盖至少30％石英玻璃坩埚的涂层表面。所述晶体覆盖表面提供与硅熔体更接近的稳定表面和单晶硅的生长。在本发明的一个实施方案中，涂层材料至少包含用于提供涂覆表面上的氢化和甲基化表面中的至少一种的甲基，形成玫瑰花结构或覆盖涂层表面的最后80％的其它结晶形态。在本发明的另一个实施方案中，涂料选自胺，有机硅烷卤素及其混合物中的至少一种。

8. 发明申请

US20070151504A1 QUARTZ GLASS CRUCIBLE AND METHOD FOR TREATING SURFACE OF QUARTZ GLASS CRUCIBLE 审中-公开
标题翻译： QUARTZ玻璃可溶性和方法用于处理QUARTZ玻璃可溶性表面
公开(公告)号：US20070151504A1
公开(公告)日：2007-07-05
申请号：US11550646
申请日：2006-10-18
申请人： Richard Hansen , Theodore Kircher , Narsi Devanathan
发明人： Richard Hansen , Theodore Kircher , Narsi Devanathan
IPC分类号： C30B15/00
CPC分类号： C30B15/10 , C03C17/004 , C03C17/006 , C03C17/28 , C03C17/30 , C03C2217/40 , C03C2217/42 , C30B29/06 , C30B35/002 , Y10T117/1032
摘要： There is provided a quartz glass article having a surface treated with novel coating materials which provides a reduced chemistry, wherein the quartz glass surface having a reduced chemistry upon exposure to melted silicon or similarly corrosive environments, forms crystalline structures covering at least 75% of the coated surface of the quartz glass crucible. Said crystalline covered surface provides a more stable surface of contact with the silicon melt and the growth of single crystal silicon. In one embodiment of the invention, the coating material comprises at least a methyl group for providing at least one of a hydrogenated and a methylated surface on the coated surface, forming rosette structures, or other crystalline morphologies covering at last 80% of the coated surface. In another embodiment of the invention, the coating material is selected from at least one of an amine, an organosilane halogen and mixtures thereof.
摘要翻译：提供了一种石英玻璃制品，其具有用新的涂层材料处理的表面，其提供减少的化学性质，其中在暴露于熔融硅或类似的腐蚀性环境时化学性能降低的石英玻璃表面形成覆盖至少75％石英玻璃坩埚的涂层表面。所述晶体覆盖表面提供与硅熔体更接近的稳定表面和单晶硅的生长。在本发明的一个实施方案中，涂层材料至少包含用于提供涂覆表面上的氢化和甲基化表面中的至少一种的甲基，形成玫瑰花结构或覆盖涂层表面的最后80％的其它结晶形态。在本发明的另一个实施方案中，涂料选自胺，有机硅烷卤素及其混合物中的至少一种。

9. 发明申请

US20080092804A1 Quartz glass crucible and method for treating surface of quartz glass crucible 有权
标题翻译：石英玻璃坩埚及石英玻璃坩埚表面处理方法
公开(公告)号：US20080092804A1
公开(公告)日：2008-04-24
申请号：US11899786
申请日：2007-09-07
申请人： Richard Lee Hansen , Theodore P. Kircher , Narsi Devanathan
发明人： Richard Lee Hansen , Theodore P. Kircher , Narsi Devanathan
IPC分类号： C30B15/10 , B32B17/06
CPC分类号： C30B15/10 , C03C17/30 , C03C2218/31 , C30B29/06 , C30B35/002 , Y10T117/1024 , Y10T428/31612
摘要： There is provided a quartz glass article having a surface treated with novel coating materials which provides a reduced chemistry, wherein the quartz glass surface having a reduced chemistry upon exposure to melted silicon or similarly corrosive environments, forms crystalline structures covering at least 30% of the coated surface of the quartz glass crucible. Said crystalline covered surface provides a more stable surface of contact with the silicon melt and the growth of single crystal silicon. In one embodiment of the invention, the coating material comprises at least a methyl group for providing at least one of a hydrogenated and a methylated surface on the coated surface, forming rosette structures, or other crystalline morphologies covering at last 80% of the coated surface. In another embodiment of the invention, the coating material is selected from at least one of an amine, an organosilane halogen and mixtures thereof.
摘要翻译：提供了一种石英玻璃制品，其具有用新的涂层材料处理的表面，其提供减少的化学性质，其中在暴露于熔融硅或类似的腐蚀性环境时具有化学成分降低的石英玻璃表面形成覆盖至少30％石英玻璃坩埚的涂层表面。所述晶体覆盖表面提供与硅熔体更接近的稳定表面和单晶硅的生长。在本发明的一个实施方案中，涂层材料至少包含用于提供涂覆表面上的氢化和甲基化表面中的至少一种的甲基，形成玫瑰花结构或覆盖涂层表面的最后80％的其它结晶形态。在本发明的另一个实施方案中，涂料选自胺，有机硅烷卤素及其混合物中的至少一种。

10. 发明授权

US06620885B2 Copolymers of functionalized polyphenylene ether resins and blends thereof 有权
公开(公告)号：US06620885B2
公开(公告)日：2003-09-16
申请号：US09943290
申请日：2001-08-30
申请人： Hua Guo , Narsi Devanathan , Charles Lewis
发明人： Hua Guo , Narsi Devanathan , Charles Lewis
IPC分类号： C08F800
CPC分类号： C08L25/12 , C08F290/142 , C08L51/00 , C08L55/005 , C08L2666/24 , C08L2666/04
摘要： A copolymer having segments of polyphenylene ether, styrene and/or acrylonitrile, a method for making the copolymer, and a blend of the copolymer with a styrenic resin are provided. The polyphenylene ether segments are derived from polyphenylene ether polymers having at least one end cap that a pair of unsaturated aliphatic carbon atoms, i.e. a carbon—carbon double bond. The copolymer is miscible with styrene/acrylonitrile copolymers.

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