-
公开(公告)号：US20180127553A1
公开(公告)日：2018-05-10
申请号：US15564373
申请日：2016-04-04
Applicant: SPIBER INC. , KOJIMA INDUSTRIES CORPORATION
Inventor： Kana ISHIDA , Hironori YAMAMOTO , Hiroaki SUZUMURA , Kazuhide SEKIYAMA
CPC classification number: C08J3/097 , C07K1/14 , C07K14/00 , C07K14/435 , C08J2389/00 , C08L89/00 , C08L2203/16 , D01F1/10 , D01F4/02
Abstract: A polar solvent solution of the present invention is a polar solvent solution in which a solute containing a polyamine acid is dissolved in a polar solvent. An inorganic salt is added to the solution, and a mole ratio of moisture to the inorganic salt in the solution is 2.5×m×n or less, where m represents the number of cations forming the inorganic salt and n represents a charge number of the cation. A production method of the present invention is a method for producing the above solution, including: changing at, least one of a moisture content and a content of the inorganic salt in the solution to adjust a viscosity of the solution. Thus, the present invention provides a polar solvent solution whose viscosity can be easily adjusted to a desired value and thus enables stable spinning and casting when used as dopes for spinning, film, etc., and methods for producing the same.
-
公开(公告)号：US20190002644A1
公开(公告)日：2019-01-03
申请号：US16065391
申请日：2016-12-21
Applicant: SPIBER INC.
Inventor： Yoshinori OHTA , Hiroaki SUZUMURA
IPC: C08J3/07 , C07K14/435 , D01F4/02
Abstract: The present invention relates to a method for producing a polymer aggregate, the method including: a step for bringing a polymer solution containing a polymer substance and cations for gel formation into contact with an anion solution containing anions for gel formation to form a gel at an interface between the polymer solution and the anion solution; and a step for causing the polymer substance to aggregate inside the gel.
-
公开(公告)号：US20180080147A1
公开(公告)日：2018-03-22
申请号：US15564142
申请日：2016-04-04
Applicant: SPIBER INC. , KOJIMA INDUSTRIES CORPORATION
Inventor： Kana ISHIDA , Hironori YAMAMOTO , Hiroaki SUZUMURA , Kazuhide SEKIYAMA
IPC: D01F4/02 , C07K14/435 , D01F1/02
CPC classification number: D01F4/02 , C07K14/435 , C07K14/43518 , D01C3/00 , D01F1/02
Abstract: A polar solvent solution of the present invention is a polar solvent solution in which a solute containing a polyamino acid is dissolved in a polar solvent. The solution has a moisture content of less than 5 mass % based on 100 mass % of the solution. A method for producing a polar solvent solution of the present invention includes changing a moisture content of the solution to adjust the viscosity of the solution. Further, another method for producing a polar solvent solution includes reducing a moisture content of the solution to increase the viscosity of the solution. Thus, the present invention provides a polar solvent solution that enables stable spinning and casting without lowering its viscosity when used as dopes for spinning, film, etc., and methods for producing the same.
-
-
Search Results
3
records
(took 0.008 seconds)
