公开(公告)号：EP2896977B1

公开(公告)日：2017-08-16

申请号：EP13836368.4

申请日：2013-08-30

申请人： Asahi Glass Company, Limited

发明人： TANAKA, Toshiyuki ,  KASAHARA, Nobuyuki ,  SATO, Masakuni ,  YAMAMOTO, Hiroshi ,  SAITO, Susumu ,  SHIMOHIRA, Tetsuji ,  TAKANO, Yoshinobu ,  OTA, Naoto

IPC分类号： G02B6/00

CPC分类号： G02B6/02038 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0057 ,  B29C47/065 ,  B29C47/92 ,  B29C2947/92704 ,  B29K2027/12 ,  B29L2011/0075 ,  G02B1/046 ,  G02B1/048 ,  G02B6/036 ,  C08L27/12 ,  C08L29/10

公开(公告)号：EP2147938B1

公开(公告)日：2012-11-21

申请号：EP08752663.8

申请日：2008-05-13

申请人： Asahi Glass Company, Limited

发明人： KASAHARA, Nobuyuki ,  MIYAKE, Noriaki

IPC分类号： C08F8/20 ,  C08F14/26 ,  C08F214/18 ,  B01J19/18 ,  C08F8/22

CPC分类号： C08F8/22 ,  B01J19/0013 ,  B01J19/2415 ,  B01J2219/00087 ,  B29C47/0014 ,  C08F14/18 ,  C08F14/26 ,  C08F214/18 ,  C08F214/262 ,  C08F2/00

公开(公告)号：EP2147938A1

公开(公告)日：2010-01-27

申请号：EP08752663.8

申请日：2008-05-13

申请人： Asahi Glass Company, Limited

发明人： KASAHARA, Nobuyuki ,  MIYAKE, Noriaki

IPC分类号： C08F8/20 ,  C08F14/26

CPC分类号： C08F8/22 ,  B01J19/0013 ,  B01J19/2415 ,  B01J2219/00087 ,  B29C47/0014 ,  C08F14/18 ,  C08F14/26 ,  C08F214/18 ,  C08F214/262 ,  C08F2/00

摘要： To provide a process for efficiently producing a perfluoropolymer having unstable terminal groups reduced.
A process for producing a fluorination-treated perfluoropolymer, which comprises melting a thermoplastic perfluoropolymer to form strands and contacting the polymer strands with a fluorine gas. For fluorination-treatment of the perfluoropolymer, an apparatus 10 is used, which comprises a melt extruder 11 for melting and extruding the perfluoropolymer, a die 12 for forming the melt extruded polymer into continuous strands 1 and a fluorination tank 13 for contacting the continuous strands 1 with a fluorine gas.

摘要翻译： 提供一种有效生产具有降低的不稳定端基的全氟聚合物的方法。 一种生产经氟化处理的全氟聚合物的方法，其包括将热塑性全氟聚合物熔化成股，并使聚合物股与氟气接触。 为了氟化处理全氟聚合物，使用设备10，其包括用于熔融和挤出全氟聚合物的熔融挤出机11，用于将熔融挤出聚合物形成为连续线料1的模具12和用于接触连续线料的氟化槽13 1与氟气。

公开(公告)号：EP2896977A1

公开(公告)日：2015-07-22

申请号：EP13836368.4

申请日：2013-08-30

申请人： Asahi Glass Company, Limited

发明人： TANAKA, Toshiyuki ,  KASAHARA, Nobuyuki ,  SATO, Masakuni ,  YAMAMOTO, Hiroshi ,  SAITO, Susumu ,  SHIMOHIRA, Tetsuji ,  TAKANO, Yoshinobu ,  OTA, Naoto

IPC分类号： G02B6/00

CPC分类号： G02B6/02038 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/0057 ,  B29C47/065 ,  B29C47/92 ,  B29C2947/92704 ,  B29K2027/12 ,  B29L2011/0075 ,  G02B1/046 ,  G02B1/048 ,  G02B6/036 ,  C08L27/12 ,  C08L29/10

摘要： To provide a plastic optical fiber using amorphous fluorinated polymers whereby transmission loss and bending loss are low, no cracking takes place during stretching, and a wide range of molding conditions is acceptable.
A plastic optical fiber comprising an inner layer, an outer layer having a refractive index lower than the refractive index of the inner layer, and a protective coating layer covering the outer periphery of the outer layer, wherein the inner layer contains an amorphous fluorinated polymer (a) having no C-H bond, the outer layer contains an amorphous fluorinated polymer (c) which may have a C-H bond only at a terminal of the main chain, the glass transition temperature (Tgc) of the fluorinated polymer (c) is at least the glass transition temperature (Tga) of the fluorinated polymer (a), the plastic optical fiber is a stretched one, the fracture elongation of the fluorinated polymer (a) and the fracture elongation of the fluorinated polymer (c) are at least 120% and larger than the stretching ratio.

公开(公告)号：EP2459604A1

公开(公告)日：2012-06-06

申请号：EP10744746.8

申请日：2010-07-28

申请人： Asahi Glass Company, Limited

发明人： ADAM, L. Safir ,  LI, Song ,  OKADA, Shinji ,  KASAHARA, Nobuyuki ,  UENO, Katsuya ,  MORIZAWA, Yoshitomi ,  OKAZOE, Takashi

IPC分类号： C08F214/24

CPC分类号： C08F214/24 ,  C08F214/242

摘要： The present invention is to provide a fluorine-containing copolymer consisting essentially of monomer units (A) of chlorotrifluoroethylene and monomer units (B), and having a ratio of the number of moles of the monomer unit (A) to the total number of moles of the monomer unit (A) and the monomer unit (B) of from 3 to 99% by mole, a fluorine content of from 15 to 75% by mole, and a molecular weight of from 1,000 to 1,000,000, provided that the monomer unit (B) is a unit derived from polymerization of any one monomer selected from the group consisting of a monomer represented by the formula CH
2 =CHCOON(R
0 )
2 , in which the two R
0 may be the same or different and R
0 represents a hydrogen atom or an alkyl group; N-vinylcaprolactam; a monomer represented by the formula CH
2 =CR
1 CH
2 OCH
2 CR
2 =CH
2 , in which R
1 and R
2 each independently represent a hydrogen atom, a fluorine atom, or a methyl group; a monomer represented by the formula CH
2 =CHCH
2 CH(CH
3 )-R
3 , in which R
3 represents a liner alkyl group having 1 to 7 carbon atoms; and a monomer of methyl 2-fluoroacrylate.