公开(公告)号：US11834555B2

公开(公告)日：2023-12-05

申请号：US17432179

申请日：2020-02-19

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Kazuhiro Yamauchi ,  Tomohiro Sugahara ,  Tatsuro Toda

IPC分类号： C08G77/16 ,  C08G77/04

CPC分类号： C08G77/16 ,  C08G77/045 ,  C09J2203/326

摘要： A cured product of a silanol composition comprising a cyclic silanol containing a silanol group and having a cyclic structure formed by a siloxane bond, and a dehydration condensation product thereof, wherein



an area ratio of a peak derived from SiO—H stretching observed at 2600 to 3800 cm−1 to an area of a peak derived from Si—O—Si stretching observed at 960 to 1220 cm−1 (SiO—H stretching/Si—O—Si stretching area ratio) is 0.01 or more in an IR spectrum.

公开(公告)号：US20230192949A1

公开(公告)日：2023-06-22

申请号：US17792813

申请日：2021-01-15

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Tatsuro Toda ,  Hisanari Yoneda ,  Takuto Nakata ,  Shota Ide ,  Hiroshi Fukuoka ,  Katsuhiro Iwase ,  Masaaki Aramaki ,  Osamu Haba ,  Yusuke Tazawa

IPC分类号： C08G64/02 ,  C08G64/30 ,  C08L69/00

CPC分类号： C08G64/0208 ,  C08G64/305 ,  C08L69/00

摘要： A polycarbonate resin comprising a structural unit represented by the following formula (1), wherein weight-average molecular weight Mw measured by size-exclusion chromatography using polymethyl methacrylate as a standard sample is 50,000 or larger and 500,000 or smaller:

公开(公告)号：US20240199803A1

公开(公告)日：2024-06-20

申请号：US18284879

申请日：2022-03-11

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Shota Ide ,  Tatsuro Toda ,  Takuto Nakata ,  Hisanari Yoneda

IPC分类号： C08G64/16

CPC分类号： C08G64/1691

摘要： Provided is a polycarbonate resin composition comprising: a polycarbonate resin comprising a constituent unit having an alicyclic hydrocarbon site where a carbonate group is linked to two carbon atoms that constitute a ring and are adjacent to each other; and one or two or more compounds selected from the group consisting of a compound having an amide bond, a sulfur compound, and a phosphite ester compound, wherein weight-average molecular weight Mw of the polycarbonate resin measured by size-exclusion chromatography using polystyrene as a standard sample is 50,000 or larger and 500,000 or smaller.

公开(公告)号：US20220185964A1

公开(公告)日：2022-06-16

申请号：US17432179

申请日：2020-02-19

申请人： Asahi Kasei Kabushiki Kaisha

发明人： Kazuhiro Yamauchi ,  Tomohiro Sugahara ,  Tatsuro Toda

IPC分类号： C08G77/04 ,  C09J183/06

摘要： A cured product of a silanol composition comprising a cyclic silanol containing a silanol group and having a cyclic structure formed by a siloxane bond, and a dehydration condensation product thereof, wherein
an area ratio of a peak derived from SiO—H stretching observed at 2600 to 3800 cm−1 to an area of a peak derived from Si—O—Si stretching observed at 960 to 1220 cm−1 (SiO—H stretching/Si—O—Si stretching area ratio) is 0.01 or more in an IR spectrum.