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公开(公告)号:US4016110A
公开(公告)日:1977-04-05
申请号:US275268
申请日:1972-07-26
CPC分类号: B01J13/185 , Y10T428/2987
摘要: Uniformity in the polymerization of expandable microspheres disclosed in U.S. Pat. 3,615,972 is improved by replacing a copolymer of adipic acid and diethanol amine with citric acid.
摘要翻译: 在美国专利No. 通过用柠檬酸代替己二酸和二乙醇胺的共聚物来改善3,615,972。