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1.
公开(公告)号:US4330449A
公开(公告)日:1982-05-18
申请号:US278606
申请日:1981-06-29
申请人: Paul Maldonado , Daniele Eber , Trung Kiet Phung
发明人: Paul Maldonado , Daniele Eber , Trung Kiet Phung
IPC分类号: C08L95/00
CPC分类号: C08L95/00
摘要: A method of preparation of polymer-asphalt (bitumen) compositions which comprises mixing, with agitation, at a temperature of 130.degree. to 230.degree. C., 80 to 98% by weight of an asphalt having a penetration between 30 to 220, and 2 to 20% by weight of a polyblock copolymer of a styrene-carboxylated conjugated diene having a mean molecular weight of 30,000 to 300,000, and maintaining this mixture for at least 2 hours at this temperature, then adding 0.1 to 3% of elemental sulfur, based on the asphalt, while maintaining the same conditions of agitation and temperature for at least 20 minutes, the carboxylated conjugated diene sequence being selected from the group consisting of carboxylated polybutadiene and carboxylated polyisoprene.
摘要翻译: 一种制备聚合物沥青(沥青)组合物的方法,其包括在130-230℃的温度下搅拌混合80至98重量%的具有30至220的渗透率的沥青和2至 至20重量%的平均分子量为30,000至300,000的苯乙烯 - 羧化共轭二烯的多嵌段共聚物,并在该温度下将该混合物保持至少2小时,然后加入0.1至3%的元素硫,基于 在沥青上,同时保持相同搅拌条件和温度至少20分钟,羧化的共轭二烯序列选自羧化聚丁二烯和羧化聚异戊二烯。
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公开(公告)号:US5756565A
公开(公告)日:1998-05-26
申请号:US525602
申请日:1995-11-13
CPC分类号: C09D195/00 , C08K5/09 , C08K5/42 , C08K5/521 , C08L95/00
摘要: Non-gellable, high temperature storage-stable bitumen/polymer compositions are provided and which are produced by stirring a sulphur-cross-linkable elastomer, an antigelling adjuvant and a sulphur-donating coupling agent into a bitumen or bitumen mixture at 100.degree.-230.degree. C. The antigelling adjuvant has the formula R--X wherein R is a C.sub.2-50 monovalent organic radical and X is a carboxylic acid, sulfonic acid or phosphoric acid group. The bitumen-polymer compositions may be used directly or in diluted form in a bitumen or bitumen mixture to form bitumen/polymer binders for producing road surfaces, coating materials or sealing materials.
摘要翻译: PCT No.PCT / FR94 / 00323 Sec。 371日期:1995年11月13日 102(e)日期1995年11月13日PCT 1994年3月24日PCT公布。 公开号WO94 / 22958 日期1994年10月13日提供了不可凝胶的高温储存稳定的沥青/聚合物组合物,其通过将可硫交联的弹性体,抗凝胶助剂和供硫偶联剂搅拌到沥青或沥青混合物中而制备 在100℃-230℃。抗胶凝剂具有式RX,其中R是C 2-50单价有机基团,X是羧酸,磺酸或磷酸基团。 沥青聚合物组合物可以直接或以稀释的形式在沥青或沥青混合物中使用,以形成用于生产路面,涂料或密封材料的沥青/聚合物粘合剂。
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