公开(公告)号：US11786763B2

公开(公告)日：2023-10-17

申请号：US16315506

申请日：2017-07-07

申请人： NIPPON SHOKUBAI CO., LTD.

发明人： Yui Ikemoto ,  Kazuhiro Okamura

IPC分类号： A61Q19/00 ,  A61K8/81 ,  A61L9/01 ,  A61Q5/00 ,  C08F26/06 ,  A61Q1/00 ,  B01J20/30 ,  C08L39/04 ,  C09D11/03 ,  C09D11/106 ,  A61K8/02 ,  A61L9/014 ,  A61Q15/00 ,  B01J20/26 ,  B01J20/28 ,  B41J2/165 ,  C08F26/10

CPC分类号： A61Q1/00 ,  A61K8/0204 ,  A61K8/027 ,  A61K8/81 ,  A61K8/817 ,  A61K8/8182 ,  A61L9/01 ,  A61L9/014 ,  A61Q5/00 ,  A61Q15/00 ,  B01J20/267 ,  B01J20/28023 ,  B01J20/28033 ,  B01J20/3014 ,  B01J20/3021 ,  B01J20/3078 ,  B01J20/3085 ,  B41J2/16517 ,  C08F26/06 ,  C08F26/10 ,  C08L39/04 ,  C09D11/03 ,  C09D11/106 ,  A61K2800/546 ,  A61K2800/5422 ,  A61L2209/14 ,  A61L2209/22 ,  C08J2323/12 ,  C08J2339/06 ,  C08J2423/12 ,  C08J2439/06 ,  C08L2203/02

摘要： The invention aims to provide a crosslinked polymer having an excellent liquid absorption capacity and sufficient gel-pulverizability. The invention relates to a N-vinyl lactam-based crosslinked polymer including: a structural unit derived from a N-vinyl lactam-based monomer; and a structural unit derived from triallyl cyanurate, the N-vinyl lactam-based crosslinked polymer containing the structural unit derived from triallyl cyanurate in a ratio of 0.12 to 0.48 mol % to 100 mol % of all structural units.

公开(公告)号：US11173472B2

公开(公告)日：2021-11-16

申请号：US16315976

申请日：2017-07-07

申请人： NIPPON SHOKUBAI CO., LTD.

发明人： Yui Ikemoto ,  Kazuhiro Okamura

IPC分类号： B01J20/26 ,  A61Q19/00 ,  A61K8/81 ,  A61L9/01 ,  A61Q5/00 ,  C08F26/06 ,  A61Q1/00 ,  B01J20/30 ,  C08L39/04 ,  C09D11/03 ,  C09D11/106 ,  A61K8/02 ,  A61L9/014 ,  A61Q15/00 ,  B01J20/28 ,  B41J2/165 ,  C08F26/10 ,  C08J5/24

摘要： The invention aims to provide a crosslinked polymer having excellent moisture retention properties, an excellent ethanol absorption capacity, excellent adhesiveness to the skin when applied to the skin as a cosmetic, and a high concentration of an effective component. The invention relates to a N-vinyl lactam-based crosslinked polymer including: a structural unit derived from a N-vinyl lactam; and a structural unit derived from a crosslinking agent, the N-vinyl lactam-based crosslinked polymer having an ethanol absorption capacity of 3 to 40 g per 1 g of the N-vinyl lactam-based crosslinked polymer, the N-vinyl lactam-based crosslinked polymer containing a particle having an aspect ratio determined by the following method of 1.15 to 10 in a proportion of 10% to 100% (by number) of the total number of the N-vinyl lactam-based crosslinked polymer and having a proportion of an extractable of 35 mass % or less in 100 mass % of the entire polymer, the method being “method of measuring aspect ratio” in which the aspect ratio is determined as a value obtained by measuring the major and minor axes of a primary particle of the N-vinyl lactam-based cross-linked polymer with an optical or electron microscope and dividing the major axis by the minor axis.