专利检索 ap:"Yoshiaki Nakase" 第 1 页

1.

发明授权
Process for preparing thermally stabilized oxymethylene polymer from trioxane with thiocyanate and radiation 失效
标题翻译：用噻唑烷和辐射从三异氰酸酯制备热稳定的甲基丙烯聚合物的方法

公开(公告)号：US3930972A

公开(公告)日：1976-01-06

申请号：US395731

申请日：1973-09-10

申请人： Akihiko Ito , Masaru Yoshida , Yoshiaki Nakase , Tadafumi Yamauchi , Tadashi Iwai , Koichiro Hayashi

发明人： Akihiko Ito , Masaru Yoshida , Yoshiaki Nakase , Tadafumi Yamauchi , Tadashi Iwai , Koichiro Hayashi

IPC分类号： C08G2/02 , C08G2/10 , C08G2/00

CPC分类号： C08G2/10 , C08G2/02

摘要： Trioxane can advantageously be polymerized in the presence of a thiocyanate (an ester of thiocyanic acid), to obtain an oxymethylene polymer having thermal stability. The polymerization is further promoted by means of an ionizing radiation or an ultraviolet light.

2.

发明授权
Novel process for preparing oxymethylene polymer and resulting product 失效
标题翻译：制备甲醛聚合物和所得产物的新方法

公开(公告)号：US3963676A

公开(公告)日：1976-06-15

申请号：US489548

申请日：1974-07-18

申请人： Masaru Yoshida , Yoshiaki Nakase , Akihiko Ito

发明人： Masaru Yoshida , Yoshiaki Nakase , Akihiko Ito

IPC分类号： C08G2/10 , C08G2/02

CPC分类号： C08G2/10

摘要： Tetraoxane is polymerized by means of an electron acceptor substance used as polymerization initiator in the absence or presence of a saturated aliphatic carboxylic acid anhydride and/or an acetal, to obtain an oxymethylene polymer having thermal stability.An ionizing radiation or a light can, if desired, concomitantly be employed before and/or in the course of polymerization.

摘要翻译： 在不存在或不存在饱和脂肪族羧酸酐和/或缩醛的情况下，通过用作聚合引发剂的电子受体物质聚合四烷，得到具有热稳定性的甲醛聚合物。