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公开(公告)号：US08901211B2
公开(公告)日：2014-12-02
申请号：US13478236
申请日：2012-05-23
CPC分类号： C08L95/00 , C08J3/18 , C08J2395/00 , C08L53/00 , C08L2555/84 , E04D1/20
摘要： The present invention relates to a method for preparing an industrial asphalt comprising sparging an oxygen containing gas through an asphalt flux in the presence of 0.25 weight percent to about 12 weight percent of a highly saturated rubbery polymer at a temperature within the range of about 400° F. to about 550° F. for a period of time which is sufficient to increase the softening point of the asphalt flux to a value which is within the range of 185° F. to 250° F. and a penetration value of at least 15 dmm to produce the industrial asphalt. The highly saturated rubbery polymer can be a styrene-ethylene/butylene-styrene block copolymer rubber or a highly saturated styrene-ethylene/propylene-styrene block copolymer rubber.
摘要翻译： 本发明涉及一种制备工业沥青的方法，其包括在约400℃的温度范围内，在0.25重量％至约12重量％的高度饱和的橡胶状聚合物的存在下，通过沥青助熔剂喷射含氧气体 F.至约550°F，持续一段时间，其足以将沥青助焊剂的软化点增加至185°F至250°F范围内的值，并且至少渗透值 15 dmm生产工业沥青。 高度饱和的橡胶状聚合物可以是苯乙烯 - 乙烯/丁烯 - 苯乙烯嵌段共聚物橡胶或高度饱和的苯乙烯 - 乙烯/丙烯 - 苯乙烯嵌段共聚物橡胶。
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公开(公告)号：US20120302673A1
公开(公告)日：2012-11-29
申请号：US13478236
申请日：2012-05-23
IPC分类号： C08L95/00
CPC分类号： C08L95/00 , C08J3/18 , C08J2395/00 , C08L53/00 , C08L2555/84 , E04D1/20
摘要： The present invention relates to a method for preparing an industrial asphalt comprising sparging an oxygen containing gas through an asphalt flux in the presence of 0.25 weight percent to about 12 weight percent of a highly saturated rubbery polymer at a temperature within the range of about 400° F. to about 550° F. for a period of time which is sufficient to increase the softening point of the asphalt flux to a value which is within the range of 185° F. to 250° F. and a penetration value of at least 15 dmm to produce the industrial asphalt. The highly saturated rubbery polymer can be a styrene-ethylene/butylene-styrene block copolymer rubber or a highly saturated styrene-ethylene/propylene-styrene block copolymer rubber.
摘要翻译： 本发明涉及一种制备工业沥青的方法，其包括在约400℃的温度范围内，在0.25重量％至约12重量％的高度饱和的橡胶状聚合物的存在下，通过沥青助熔剂喷射含氧气体 F.至约550°F，持续一段时间，其足以将沥青助焊剂的软化点增加至185°F至250°F范围内的值，并且至少渗透值 15 dmm生产工业沥青。 高度饱和的橡胶状聚合物可以是苯乙烯 - 乙烯/丁烯 - 苯乙烯嵌段共聚物橡胶或高度饱和的苯乙烯 - 乙烯/丙烯 - 苯乙烯嵌段共聚物橡胶。
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公开(公告)号：US20150087734A1
公开(公告)日：2015-03-26
申请号：US14554180
申请日：2014-11-26
IPC分类号： C08L95/00
CPC分类号： C08L95/00 , C08J3/18 , C08J2395/00 , C08L53/00 , C08L2555/84 , E04D1/20
摘要： The present invention relates to a method for preparing an industrial asphalt comprising sparging an oxygen containing gas through an asphalt flux in the presence of 0.25 weight percent to about 12 weight percent of a highly saturated rubbery polymer at a temperature within the range of about 400° F. to about 550° F. for a period of time which is sufficient to increase the softening point of the asphalt flux to a value which is within the range of 185° F. to 250° F. and a penetration value of at least 15 dmm to produce the industrial asphalt. The highly saturated rubbery polymer can be a styrene-ethylene/butylene-styrene block copolymer rubber or a highly saturated styrene-ethylene/propylene-styrene block copolymer rubber.
摘要翻译： 本发明涉及一种制备工业沥青的方法，其包括在约400℃的温度范围内，在0.25重量％至约12重量％的高度饱和的橡胶状聚合物的存在下，通过沥青助熔剂喷射含氧气体 F.至约550°F，持续一段时间，其足以将沥青助焊剂的软化点增加至185°F至250°F范围内的值，并且至少渗透值 15 dmm生产工业沥青。 高度饱和的橡胶状聚合物可以是苯乙烯 - 乙烯/丁烯 - 苯乙烯嵌段共聚物橡胶或高度饱和的苯乙烯 - 乙烯/丙烯 - 苯乙烯嵌段共聚物橡胶。
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公开(公告)号：US10703980B2
公开(公告)日：2020-07-07
申请号：US15716997
申请日：2017-09-27
IPC分类号： C10C3/04
摘要： It has been discovered that the efficiency of asphalt blow stills can be improved by sectionalizing the blow still with perforated plates at various heights within the blow still. The perforated plates which contain a multitude of holes act to reduce air bubble size and improve the dispersion of the air bubbles throughout the asphalt flux. This increases the total surface area per unit volume of the air bubbles and promotes a faster processing time. The perforated plates also increase the contact time between the air bubbles and the asphalt flux which further results in improved efficiency and reduced blow times. This is beneficial because faster processing times can be achieved resulting in more efficient use of equipment, higher levels of productivity, lower energy requirements, cost savings, reduce blow loss, and reduced thermal history to which the asphalt is exposed.
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公开(公告)号：US20180086982A1
公开(公告)日：2018-03-29
申请号：US15716997
申请日：2017-09-27
IPC分类号： C10C3/04
摘要： It has been discovered that the efficiency of asphalt blow stills can be improved by sectionalizing the blow still with perforated plates at various heights within the blow still. The perforated plates which contain a multitude of holes act to reduce air bubble size and improve the dispersion of the air bubbles throughout the asphalt flux. This increases the total surface area per unit volume of the air bubbles and promotes a faster processing time. The perforated plates also increase the contact time between the air bubbles and the asphalt flux which further results in improved efficiency and reduced blow times. This is beneficial because faster processing times can be achieved resulting in more efficient use of equipment, higher levels of productivity, lower energy requirements, cost savings, reduce blow loss, and reduced thermal history to which the asphalt is exposed.
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