公开(公告)号：IN10349DEN2014A

公开(公告)日：2015-08-07

申请号：IN10349DEN2014

申请日：2014-12-04

Applicant: BRIDGESTONE CORP

Inventor： KOIDE MITSUHARU ,  SUGIMOTO KENICHI

IPC: D01F2/00 ,  B60C9/00 ,  D02G3/48

Abstract: The present invention provides: a production method for purified polysaccharide fibers in which carbon disulfide emissions are suppressed while efficiently producing purified polysaccharide fibers having excellent strength; purified polysaccharide fibers are produced by using said production method; a fiber rubber complex that uses said purified polysaccharide fibers; and a tire having excellent tire characteristics said tire using said fiber rubber complex. This production method for purified polysaccharide fibers involves bringing a polysaccharide solution which is obtained by dissolving a raw polysaccharide material in a liquid containing an ionic liquid into contact with a solidified liquid containing an ionic liquid and subjecting polysaccharides to wet spinning or dry spinning. The production method for purified polysaccharide fibers is characterized in that: the concentration of the ionic liquid in the solidified liquid is 0.4 wt% to 50 wt%; and the anionic moieties of the ionic liquid in the polysaccharide solution and the ionic liquid in the solidified liquid have at least one type of ion selected from a group comprising phosphinate ions phosphate ions and phosphonate ions.

公开(公告)号：EP2647744A4

公开(公告)日：2014-05-21

申请号：EP11845200

申请日：2011-11-30

Applicant: BRIDGESTONE CORP

Inventor： SUGIMOTO KENICHI ,  KOIDE MITSUHARU

IPC: D01F2/02 ,  B60C9/00 ,  C08B16/00

CPC classification number: C08B37/00 ,  B60C9/0042 ,  C08B1/003 ,  C08B16/00 ,  C08J5/045 ,  C08J5/06 ,  C08J2321/00 ,  C08K7/02 ,  C08L1/00 ,  C08L1/06 ,  C08L21/00 ,  D01F2/02

Abstract: The present invention relates to a purified cellulose fiber which has an initial elastic modulus of 2.30 cN/dtex or higher in a region having an elongation of 0.5% to 0.7%, wherein the purified cellulose fiber is made by wet spinning or dry-wet spinning a cellulose-dissolved liquid made by dissolving a cellulose raw material in an ionic liquid, and a fiber-rubber composite and a tire, each using the same.

公开(公告)号：EP2853623A4

公开(公告)日：2016-01-20

申请号：EP13793900

申请日：2013-05-21

Applicant: BRIDGESTONE CORP

Inventor： KOIDE MITSUHARU ,  SUGIMOTO KENICHI

IPC: D01F2/02 ,  B60C9/00 ,  D01F2/24 ,  D01F9/00 ,  D02G3/48

CPC classification number: B60C9/0042 ,  B60C9/02 ,  B60C17/0009 ,  B60C2009/0475 ,  B60C2200/10 ,  D01F2/02 ,  D01F2/24 ,  D01F9/00 ,  D02G3/042 ,  D02G3/48

Abstract: An object of the present invention aims to provide a cord formed by twisting purified polysaccharide fibers which are manufactured by using a raw material with a low environmental impact and do not emit carbon disulfide, in which the cord is able to confer durability and resistance to external damage to a tire when the cord is used in the tire. A cord is provided formed by bringing a polysaccharide solution which is formed by dissolving a polysaccharide raw material in a liquid including an ionic liquid in contact with a solidifying liquid, and by twisting raw yarn which is purified polysaccharide fibers formed by spinning polysaccharides, in which a relationship between tenacity TB (cN/dtex) of the raw yarn at 25°C and elongation at break EB (%) of the raw yarn at 25°C satisfies the following expression (1) and the following expression (2), and a twisted yarn tenacity utilization rate (CT/TB) at the time of setting cord tenacity at 25°C to CT (cN/dtex) when the raw yarn is twisted to be a cord is greater than or equal to 70%.

公开(公告)号：EP2853624A4

公开(公告)日：2016-05-11

申请号：EP13794775

申请日：2013-05-21

Applicant: BRIDGESTONE CORP

Inventor： KOIDE MITSUHARU ,  SUGIMOTO KENICHI

IPC: D01F2/00 ,  B60C9/00 ,  D01D5/06 ,  D01F9/00 ,  D01F13/02 ,  D02G3/48

CPC classification number: D01F2/02 ,  B60C1/0041 ,  B60C9/0042 ,  B60C2001/0066 ,  B60C2001/0083 ,  C08L1/02 ,  C08L21/00 ,  C08L2205/16 ,  D01D5/06 ,  D01F2/00 ,  D01F9/00 ,  D01F13/02 ,  D02G3/48 ,  D10B2201/00 ,  Y02P70/627

Abstract: The present invention provides a production method for purified polysaccharide fibers in which carbon disulfide emission is suppressed while efficiently producing purified polysaccharide fibers having excellent strength, purified polysaccharide fibers produced by using the production method, a fiber-rubber complex using the purified polysaccharide fibers, and a tire having excellent tire characteristics using the fiber-rubber complex. The production method for purified polysaccharide fibers of the present invention is a production method for purified polysaccharide fibers of wet-spinning or dry-wet-spinning polysaccharide by bringing a polysaccharide solution obtained by dissolving a polysaccharide raw material in a liquid including an ionic liquid into contact with a solidification liquid including an ionic liquid, in which a concentration of the ionic liquid in the solidification liquid is 0.4% by weight to 50% by weight and the anionic moieties of the ionic liquid in the polysaccharide solution and the ionic liquid in the solidification liquid have one or more types selected from the group consisting of a phosphinate ion, a phosphate ion, and a phosphonate ion.

公开(公告)号：EP3000919A4

公开(公告)日：2016-04-27

申请号：EP14801438

申请日：2014-05-21

Applicant: BRIDGESTONE CORP

Inventor： SUGIMOTO KENICHI ,  KOIDE MITSUHARU

IPC: D01F2/00 ,  B60C9/00 ,  D01D5/06 ,  D01F2/02 ,  D01F9/00

CPC classification number: D01F2/02 ,  B29C47/0014 ,  B29C47/8895 ,  B29K2005/00 ,  B29L2031/731 ,  B60C9/0042 ,  C08L1/02 ,  C08L21/00 ,  C08L2205/16 ,  D01D5/04 ,  D01D5/06 ,  D01F9/00

Abstract: A process for producing purified polysaccharide fiber of the present invention includes bringing a polysaccharide solution, which is obtained by dissolving a polysaccharide raw material in a liquid containing an ionic liquid, into contact with a solidification liquid containing an ionic liquid, and performing dry-wet spinning on polysaccharide, in which the concentration of the ionic liquid in the solidification liquid is 0.4% by weight to 70% by weight, and a distance D from a site where the polysaccharide solution is extruded in the form of fiber to a site where the extruded polysaccharide solution comes into contact with the solidification liquid is 50 mm to 120 mm.

Abstract translation: 一种用于制造本发明的纯化的多糖纤维的方法包括使多糖溶液，其全部由多糖原料溶解在含离子液体的液体，与含离子型液体的凝固液接触而得到，并进行干 - 湿 旋涂多糖，重量，其中在凝固液中的离子液体的浓度为按重量计0.4％至70％，并从一个位点，其中所述多糖溶液在纤维的形式挤出到的部位的距离D，其中 挤出的多糖溶液与所述液体接触凝固为50mm至120mm。