公开(公告)号：US4754016A

公开(公告)日：1988-06-28

申请号：US869989

申请日：1986-06-03

申请人： Hideo Ai ,  Akihiko Ikeda ,  Yoshio Matsuoka

发明人： Hideo Ai ,  Akihiko Ikeda ,  Yoshio Matsuoka

IPC分类号： C08G69/00 ,  C08G69/28

CPC分类号： C08G69/28

摘要： A process for preparing a polyamide which comprises polycondensing a dicarboxylic acid and a diamine by using a combination of at least one phosphine and at least one disulfide as the condensing agent.

公开(公告)号：US4528332A

公开(公告)日：1985-07-09

申请号：US567481

申请日：1984-01-03

申请人： Hideo Ai ,  Akihiko Ikeda ,  Yoshio Matsuoka

发明人： Hideo Ai ,  Akihiko Ikeda ,  Yoshio Matsuoka

IPC分类号： C08F8/08

CPC分类号： C08F8/08 ,  C08F2800/10 ,  C08F2800/20 ,  Y10S430/143 ,  Y10S430/167

摘要： Novel copolymers having a weight average molecular weight of 500 to 5,000,000 and comprising 1 to 99% by weight of a recurring unit represented by the formula (I), 1 to 99% by weight of a recurring unit represented by the formula (II) and 0 to 98% by weight of a recurring unit represented by the formula (III): ##STR1## wherein R.sup.1 is a hydrogen atom or a methyl group; X is a hydrogen atom, a methyl group or a phenyl group; Y is a hydrogen atom, a halogen atom, a methyl group, a phenyl group or a cyano group; and Z is a phenyl group, a phenyl group substituted by at least one alkyl group having 1 to 8 carbon atoms, a polycyclic aromatic hydrocarbon group having 10 to 20 carbon atoms, a cyano group, --COOR.sup.2 (in which R.sup.2 is an alkyl group having 1 to 20 carbon atoms or an aromatic hydrocarbon group having 6 to 14 carbon atoms), --COR.sup.3 (in which R.sup.3 is an alkyl group having 1 to 12 carbon atoms or an aromatic hydrocarbon group having 6 to 14 carbon atoms), a nitro group, a pyridyl group, ##STR2## (in which R.sup.3 has the same meaning as defined above), or a halogen atom. The above-mentioned copolymers are useful as resist materials which are sensitive to high-energy radiations.

摘要翻译： 新型共聚物，其重均分子量为500〜5,000,000，含有1〜99重量％的式（I）表示的重复单元，1〜99重量％的式（II）表示的重复单元和 0〜98重量％的由式（III）表示的重复单元：其中R1是氢原子或甲基; X是氢原子，甲基或苯基; Y是氢原子，卤素原子，甲基，苯基或氰基; Z为苯基，被至少一个碳原子数为1〜8的烷基取代的苯基，碳原子数为10〜20的多环芳香族烃基，氰基，-COOR 2（R2为烷基） 具有1至20个碳原子或具有6至14个碳原子的芳族烃基），-COR 3（其中R 3是具有1至12个碳原子的烷基或具有6至14个碳原子的芳族烃基），硝基 基，吡啶基，＆lt; IMAGE＆gt;（其中R 3具有与上述相同的含义）或卤素原子。 上述共聚物可用作对高能辐射敏感的抗蚀剂材料。