公开(公告)号：US3931027A

公开(公告)日：1976-01-06

申请号：US372975

申请日：1973-06-25

申请人： Fred S. Sadler ,  John Lapp

发明人： Fred S. Sadler ,  John Lapp

IPC分类号： H01B3/18 ,  H01B3/48 ,  H01F27/32 ,  D06M13/00 ,  D06M13/34 ,  H01B3/00

CPC分类号： H01B3/185 ,  H01B3/485 ,  H01F27/327

摘要： Cellulose material having improved resistance to thermal deterioration and having particular application as insulation material for electrical apparatus. The cellulose material is treated with an aqueous dispersion of a liquid, uncured, crosslinkable thermosetting resin, such as an epoxy resin, and a water soluble, nitrogen-containing compound. During curing of the resin, the cellulose molecules are believed to enter into the crosslinking reaction to provide a treated cellulosic product capable of withstanding the deteriorating action of heat over extended periods of time. A protein material, such as casein or isolated soy protein, can be added to the treating liquid and the protein not only contributes additional nitrogen groups to the treating media to further increase the thermal stability of the cellulose, but also acts as a film former. The thermal stability of the cellulose material can be further improved by the addition of an organic amine, such as melamine, to the treating liquid.

公开(公告)号：US4110496A

公开(公告)日：1978-08-29

申请号：US735020

申请日：1976-10-22

申请人： John Lapp ,  Fred S. Sadler

发明人： John Lapp ,  Fred S. Sadler

IPC分类号： H01G4/22 ,  B32B27/08

CPC分类号： H01G4/221 ,  H01G4/222 ,  Y10T428/31855 ,  Y10T428/31917

摘要： An improved dielectric system for an electrical apparatus. The dielectric system includes a polymeric film impregnated with low molecular weight polybutene having an average number molecular weight in the range of 300 to 500. The dielectric system has improved dielectrical properties and the polybutene is biodegradable which minimizes the pollution of the atmosphere if the dielectric liquid is exposed to the atmosphere. Further extended service life can be achieved by the addition of a cyclohexyl amine to the liquid dielectric.

公开(公告)号：US3996505A

公开(公告)日：1976-12-07

申请号：US494767

申请日：1974-08-05

申请人： John Lapp ,  Fred S. Sadler

发明人： John Lapp ,  Fred S. Sadler

IPC分类号： H01G4/22

CPC分类号： H01G4/221 ,  H01G4/222 ,  Y10T428/31855 ,  Y10T428/31917

摘要： An electrical apparatus, such as a capacitor, having an improved dielectric system. The dielectric system includes a polymeric film impregnated with low molecular weight polybutene having an average number molecular weight in the range of 300 to 500. The dielectric system has improved dielectrical properties and the polybutene is biodegradable which minimizes the pollution of the atmosphere if the dielectric liquid is exposed to the atmosphere. Further extended service life can be achieved by the addition of a cyclohexyl amine to the liquid dielectric.

摘要翻译： 具有改进的电介质系统的诸如电容器的电气设备。 电介质系统包括浸渍有平均数分子量在300至500范围内的低分子量聚丁烯的聚合物膜。介电体系具有改善的介电性能，聚丁烯是可生物降解的，如果介电液体 暴露在大气中。 通过向液体电介质中加入环己基胺可以进一步延长使用寿命。

公开(公告)号：US4450424A

公开(公告)日：1984-05-22

申请号：US376525

申请日：1982-05-10

申请人： Fred S. Sadler ,  Paul F. Hettwer ,  Vu H. Viet ,  Clarence R. Acker

发明人： Fred S. Sadler ,  Paul F. Hettwer ,  Vu H. Viet ,  Clarence R. Acker

IPC分类号： H01F27/32 ,  H01B3/18

CPC分类号： H01F27/324

摘要： An insulating system is described that incorporates a cellulosic material which is impregnated with a nitrogen content no less than 0.2% by weight and a overall density not greater than 0.9 gm/cm.sup.3. This cellulosic material when impregnated by a dielectric liquid such as transformer oil, exhibits a more uniform electrical stress distribution than papers having a density greater than 0.9 gm/cm.sup.3. The insulating system thereformed is particularly useful for application in low stress areas such as the layer insulation in a distribution class transformer.

摘要翻译： 描述了一种绝缘系统，其包含浸渍有氮含量不小于0.2重量％且总密度不大于0.9gm / cm 3的纤维素材料。 当通过诸如变压器油的电介质液体浸渍时，该纤维素材料比具有大于0.9gm / cm 3的密度的纸具有更均匀的电应力分布。 所用的绝缘系统对于应用于低应力区域（例如配电级变压器中的层绝缘）尤其有用。

公开(公告)号：US4407697A

公开(公告)日：1983-10-04

申请号：US365523

申请日：1982-04-05

申请人： Fred S. Sadler ,  Paul F. Hettwer ,  Vu H. Viet ,  Clarance R. Acker

发明人： Fred S. Sadler ,  Paul F. Hettwer ,  Vu H. Viet ,  Clarance R. Acker

IPC分类号： D21H17/22 ,  D21H17/50 ,  H01B3/52 ,  D21H1/48 ,  H05K5/00

CPC分类号： H01B3/52 ,  D21H17/22 ,  D21H17/50 ,  Y10T428/31725 ,  Y10T428/31783 ,  Y10T428/31993

摘要： The invention relates to a method for improving the thermal stability and dielectric integrity of a cellulosic web product. The cellulosic web is impregnated with a nitrogen donor compound such that the web contains not less than 0.2% by weight of the compound and thereafter impregnated with an aqueous vegetable protein solution at a pH of not less than about 8.5.

摘要翻译： 本发明涉及一种提高纤维素网产品的热稳定性和电介质完整性的方法。 用氮供体化合物浸渍纤维素网，使得纤维网含有不小于0.2重量％的化合物，然后用不低于约8.5的pH浸渍水性植物蛋白溶液。

公开(公告)号：US4097913A

公开(公告)日：1978-06-27

申请号：US613073

申请日：1975-09-15

申请人： John Lapp ,  Fred S. Sadler

发明人： John Lapp ,  Fred S. Sadler

IPC分类号： C10M101/00 ,  H01B3/24 ,  H01G4/22

CPC分类号： H01G4/222 ,  H01B3/24

摘要： An electrical apparatus, such as a capacitor, having an improved dielectric system. The capacitor includes alternate layers of metal foil and a dielectric material comprising polymeric film, or a combination of polymeric film and paper, which is impregnated with a liquid dielectric composition composed of a mixture of mono-halogenated diphenyl oxide and a mono-halogenated alkyl diphenyl oxide where the alkyl group contains from 1 to 20 carbon atoms in the molecule. The capacitor has improved corona characteristics and low dielectric losses, and the liquid dielectric composition is substantially biodegradable.

摘要翻译： 具有改进的电介质系统的诸如电容器的电气设备。 电容器包括金属箔的交替层和包含聚合物膜或聚合物膜和纸的组合的电介质材料，其被由单卤代二苯基氧化物和单卤代烷基二苯基的混合物组成的液体电介质组合物浸渍 氧化物，其中烷基在分子中含有1至20个碳原子。 电容器具有改善的电晕特性和低介电损耗，并且液体电介质组合物基本上是可生物降解的。

公开(公告)号：US4097912A

公开(公告)日：1978-06-27

申请号：US542391

申请日：1975-01-20

申请人： John Lapp ,  Fred S. Sadler

发明人： John Lapp ,  Fred S. Sadler

IPC分类号： H01G4/22

CPC分类号： H01G4/222

摘要： An electrical capacitor having an improved dielectric system. The capacitor includes alternate layers of metal foil and polymeric dielectric film which is impregnated with a liquid dielectric composition composed of a mixture of mono-halogenated diphenyl oxide and a mono-halogenated alkyl diphenyl oxide where the alkyl group contains from 1 to 20 carbon atoms in the molecule. In processing the capacitor, the capacitor casing is vacuum dried at room temperature and the dielectric liquid is separately agitated under vacuum to remove gas from the liquid. The degassified liquid is introduced into the casing and the liquid is subjected to a vacuum while maintaining the capacitor at room temperature to impregnate the polymeric layers with the liquid. The capacitor has improved corona characteristics and low dielectric losses, and the liquid dielectric composition is substantially biodegradable.

摘要翻译： 具有改进介电系统的电容器。 电容器包括金属箔和聚合物电介质膜的交替层，其浸渍有由单卤代二苯基氧化物和单卤代烷基二苯基氧化物的混合物组成的液体电介质组合物，其中烷基含有1至20个碳原子 分子。 在处理电容器时，电容器外壳在室温下进行真空干燥，电介质液体在真空下分别搅拌以从液体中除去气体。 将脱气的液体引入壳体中，并且将液体经受真空，同时将电容器保持在室温下以用液体浸渍聚合物层。 电容器具有改善的电晕特性和低介电损耗，并且液体电介质组合物基本上是可生物降解的。