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1.发明授权Process for altering the particle size distribution of alpha monoolefin polymers 失效改进ALPHA单螺旋聚合物颗粒尺寸分布的方法
公开(公告)号：US3554994A
公开(公告)日：1971-01-12
申请号：US3554994D
申请日：1967-04-03
Applicant: STANDARD OIL CO
Inventor： MALONEY RICHARD P , KHELGHATIAN HABET M , DEMPSEY JAMES F
CPC classification number: C08J3/12 , C08F6/18 , C08J2323/08 , Y10S526/909 , C08L23/10
Abstract: A PROCESS FOR REARRANGING THE PARTICLE SIZE DISTRIBUTION OF FINELY DIVIDED SOLID ALPHA MONOOLEFIN POLYMERS COMPRISING HEATING A SLURRY OF POLYMER WET CAKE AND WATER TO A TEMPERATURE IN THE RANGE OF 35*-150* C. IN A CLOSED AUTOCLAVE FOR THE TIME NECESSARY TO PRECONDITION THE POLYMER AND THEREAFTER SHOCK COOLING THE HEATED SLURRY TO PROVIDE A POLYMER POWDER HAVING A CHANGED PARTICLE SIZE DISTRIBUTION IN THE RANGE OF 70 TO 250 MICRONS.
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