公开(公告)号：US06469123B1

公开(公告)日：2002-10-22

申请号：US09618945

申请日：2000-07-19

申请人： Kreisler S. Lau ,  Feng Quan Liu ,  Boris A. Korolev ,  Emma Brouk ,  Ruslan Zherebin ,  David Nalewajek

发明人： Kreisler S. Lau ,  Feng Quan Liu ,  Boris A. Korolev ,  Emma Brouk ,  Ruslan Zherebin ,  David Nalewajek

IPC分类号： C08G6378

CPC分类号： C08G61/02 ,  C08G61/12 ,  C08G2650/60

摘要： In a method of producing a low dielectric constant polymer, a thermosetting monomer is provided, wherein the thermosetting monomer has a cage compound or aryl core structure, and a plurality of arms that are covalently bound to the cage compound or core structure. In a subsequent step, the thermosetting monomer is incorporated into a polymer to form the low dielectric constant polymer, wherein the incorporation into the polymer comprises a chemical reaction of a triple bond that is located in at least one of the arms. Contemplated cage compounds and core structures include adamantane, diamantane, silicon, a phenyl group and a sexiphenylene group, while preferred arms include an arylene, a branched arylene, and an arylene ether. The thermosetting monomers may advantageously be employed to produce low-k dielectric material in electronic devices, and the dielectric constant of the polymer can be controlled by varying the overall length of the arms.

公开(公告)号：US06423811B1

公开(公告)日：2002-07-23

申请号：US09619237

申请日：2000-07-19

申请人： Kreisler S. Lau ,  Feng Quan Liu ,  Boris Korolev ,  Emma Brouk ,  Ruslan Zherebin ,  David Nalewajek

发明人： Kreisler S. Lau ,  Feng Quan Liu ,  Boris Korolev ,  Emma Brouk ,  Ruslan Zherebin ,  David Nalewajek

IPC分类号： C08G802

CPC分类号： C08G69/48 ,  C08G61/02 ,  C08G61/12 ,  C08G65/4012 ,  C08G2650/20 ,  C08G2650/60 ,  C08L2312/00

摘要： A low dielectric constant material has a polymeric network that is fabricated from a first and a second component. The first component comprises a polymeric strand, and the second component comprises a molecule having a central portion with at least three arms extending from the central portion, wherein each of the arms includes a backbone with a reactive group. The first component and the second component form the polymeric network in a reaction that involves at least one of the reactive groups when the first and second components are thermally activated. Contemplated low dielectric constant materials are advantageously employed in the fabrication of electronic devices, and particularly contemplated devices include integrated circuits.

公开(公告)号：US5856594A

公开(公告)日：1999-01-05

申请号：US728537

申请日：1996-10-09

申请人： Alagappan Thenappan ,  Michael Van Der Puy ,  David Nalewajek

发明人： Alagappan Thenappan ,  Michael Van Der Puy ,  David Nalewajek

IPC分类号： C07C17/23 ,  C07C19/08

CPC分类号： C07C17/23

摘要： A process for the preparation of 1,1,2,2,3-pentafluoropropane is provided. In the process of the present invention, 1,3-dichloro-1,1,2,2,3-pentafluoropropane is catalytically reduced, using a platinum group metal supported on alumina, to 1,1,2,2,3-pentafluoropropane.

摘要翻译： 提供了制备1,1,2,2,3-五氟丙烷的方法。 在本发明的方法中，使用负载在氧化铝上的铂族金属，将1,3-二氯-1,1,2,2,3-五氟丙烷催化还原成1,1,2,2,3-五氟丙烷 。

公开(公告)号：US5243080A

公开(公告)日：1993-09-07

申请号：US910461

申请日：1992-07-08

申请人： Michael Van Der Puy ,  David Nalewajek ,  George A. Shia ,  William J. Wagner

发明人： Michael Van Der Puy ,  David Nalewajek ,  George A. Shia ,  William J. Wagner

IPC分类号： C07D213/89 ,  C07F5/02

CPC分类号： C07D213/89 ,  C07F5/022

摘要： The present invention provides a novel compound represented as ##STR1## The present novel compound is prepared by reacting fluorine with pyridine-boron trifluoride and is useful as a fluorinating agent in the fluorination of organic compounds.

摘要翻译： 本发明提供了一种新化合物，其表示为本发明的新化合物，其通过氟与吡啶 - 三氟化硼反应制备，并且可用作有机化合物的氟化中的氟化剂。

公开(公告)号：US5100569A

公开(公告)日：1992-03-31

申请号：US621163

申请日：1990-11-30

申请人： David Nalewajek ,  Richard E. Eibeck ,  Raymond H. Thomas

发明人： David Nalewajek ,  Richard E. Eibeck ,  Raymond H. Thomas

IPC分类号： C10M107/38 ,  C10M171/00

CPC分类号： C10M171/008 ,  C10M107/38

摘要： The present invention provides a composition for use in refrigeration and air-conditioning comprising: (a) at least one refrigerant selected from the group consisting of hydrofluorocarbon, hydrochlorofluorocarbon, fluorocarbon, and chlorofluorocarbon; and (b) a sufficient amount to provide lubrication of at least one polyoxyalkylene glycol. The polyoxyalkylene glycol has at least one pendant non-terminal perfluorinated alkyl group on its hydrocarbon polymer backbone. The polyoxyalkylene glycol is terminated with a group selected from the group consisting of hydrogen, alkyl, and fluoroalkyl. The polyoxyalkylene glycol has a molecular weight of about 300 to about 4,000 and a viscosity of about 5 to about 300 centistokes at 37.degree. C. The polyoxyalkylene glycol is miscible in combination with the refrigerant in the range between about -40.degree. C. and at least about +20.degree. C.

摘要翻译： 本发明提供一种用于制冷和空调的组合物，包括：（a）至少一种选自氢氟碳化合物，氢氯氟烃，氟碳化合物和氯氟烃的制冷剂; 和（b）足够的量以提供至少一种聚氧亚烷基二醇的润滑。 聚氧亚烷基二醇在其烃聚合物主链上具有至少一个侧链的非末端全氟化烷基。 聚氧亚烷基二醇用选自氢，烷基和氟代烷基的基团封端。 聚氧亚烷基二醇的分子量为约300至约4,000，在37℃下的粘度为约5至约300厘沲。聚氧亚烷基二醇可与制冷剂混合在约-40℃和 至少约+20℃

公开(公告)号：US4405568A

公开(公告)日：1983-09-20

申请号：US451297

申请日：1982-12-20

申请人： David Nalewajek

发明人： David Nalewajek

IPC分类号： C01F17/00 ,  C01G15/00

CPC分类号： C01G15/00 ,  C01F17/0043 ,  C01P2006/80

摘要： A process is described whereby the "saw kerf" can be reprocessed in sufficient purity to be re-used in the process, thereby improving the economics of production of GGG wafers significantly. Gadolinium and gallium oxides are recovered and separated from transition metal impurities introduced during fabrication of GGG wafers. The process "saw kerf" produced from slicing the crystal boule is dissolved by refluxing in HNO.sub.3, treated with oxalic acid and the resulting oxalates and nitrates separated. Pyrolysis of these salts at temperatures of at least 850.degree. C. resulted in their conversion to Ga.sub.2 O.sub.3 of purity >99.99%. The process can be extended to include purification and re-use of by-products generated in other grinding and polishing operations which may result in the recycling of the order of 80% of the generated by-products.

摘要翻译： 描述了一种方法，其中“锯切”可以以足够的纯度重新加工以在该过程中重新使用，从而显着提高了GGG晶片的生产经济性。 钆和镓氧化物被回收并与制造GGG晶片期间引入的过渡金属杂质分离。 通过在HNO 3中回流溶解通过切片晶体棒产生的过程“锯切”，用草酸处理，所得草酸盐和硝酸盐分离。 这些盐在至少850℃的温度下热分解，导致其转化为纯度> 99.99％的Ga 2 O 3。 该方法可以扩展到包括在其它研磨和抛光操作中产生的副产物的纯化和再利用，这可能导致生成的副产物的80％的量级的再循环。