公开(公告)号：US06730741B1

公开(公告)日：2004-05-04

申请号：US09926558

申请日：2002-02-01

申请人： Souichiro Honda ,  Akira Nakata ,  Ken Tsuchibe

发明人： Souichiro Honda ,  Akira Nakata ,  Ken Tsuchibe

IPC分类号： C08L2706

CPC分类号： C08L27/06 ,  C08L33/06 ,  C08L33/12 ,  C08L2666/04

摘要： The present invention provides a processing aid that reduces ungelled products and flow marks generated on a sheet, and improves releasability of the sheet from the metallic surface of a roll, with the processing aid comprising: a copolymer (A) obtained by copolymerizing a monomer mixture comprising 70 to 90% by weight of methyl methacrylate, 10 to 30% by weight of acrylate or methacrylate other than methyl methacryrate and a different type of monomer capable of being copolymerized with those monomers; and a copolymer (B) obtained by copolymerizing a monomer mixture comprising at least 30% by weight of methyl methacrylate and a monomer having as constitutional units at least one type selected from methacrylates other than methyl methacrylate, acrylates, aromatic alkenyl compounds and other monomers.

摘要翻译： 本发明提供一种加工助剂，其减少在片材上产生的未凝胶化产物和流动痕迹，并提高片材从辊的金属表面的脱模性，其中加工助剂包括：通过共聚单体混合物获得的共聚物（A） 包含70〜90重量％的甲基丙烯酸甲酯，10〜30重量％的除甲基丙烯酸甲酯以外的丙烯酸酯或甲基丙烯酸酯和能够与这些单体共聚的不同类型的单体; 和通过共聚含有至少30重量％的甲基丙烯酸甲酯的单体混合物和具有选自甲基丙烯酸甲酯以外的甲基丙烯酸酯，丙烯酸酯，芳族烯基化合物和其它单体中的至少一种的结构单元的单体获得的共聚物（B）。