公开(公告)号：WO2019221694A1

公开(公告)日：2019-11-21

申请号：PCT/US2018/032509

申请日：2018-05-14

Applicant: KEMIRA OYJ ,  KEMIRA CHEMICALS INC.

Inventor： LU, Chen ,  RABIDEAU, Jenna

IPC: C08L3/04 ,  C08B15/00 ,  C08B31/00 ,  C08B37/00 ,  C08L1/08 ,  C08L5/04 ,  D21H17/24 ,  D21H17/25 ,  D21H17/28 ,  D21H17/30 ,  D21H17/32 ,  D21H21/18

Abstract: The present invention relates to a polymer composition comprising an anionic polymer composite having a synthesized polymer portion and a polysaccharide portion, obtainable by polymerizing vinyl monomers in the presence of the polysaccharide. The present invention further relates to a strength system and methods of production and use in providing a paper product.

公开(公告)号：WO2019057350A1

公开(公告)日：2019-03-28

申请号：PCT/EP2018/062398

申请日：2018-05-14

Applicant: KEMIRA OYJ

Inventor： LU, Chen ,  RABIDEAU, Jenna

IPC: D21H17/24 ,  D21H17/42

CPC classification number: D21H21/20 ,  C08L1/284 ,  C08L33/26 ,  D21H17/24 ,  D21H17/26 ,  D21H17/37 ,  D21H17/375 ,  D21H17/42 ,  D21H17/55 ,  D21H17/72 ,  D21H21/18 ,  D21H27/002 ,  D21H27/10

Abstract: The present invention relates to a polymer composition comprising an anionic synthetic polymer and an anionic polysaccharide. The present invention further relates to a strength additive system, uses thereof, a paper product and a method of production.

公开(公告)号：WO2019002686A1

公开(公告)日：2019-01-03

申请号：PCT/FI2018/050506

申请日：2018-06-27

Applicant: KEMIRA OYJ

Inventor： LU, Chen ,  RABIDEAU, Jenna

IPC: D21H17/15 ,  D21H17/16 ,  D21H17/65 ,  D21H21/16

CPC classification number: D21H17/16 ,  D21H17/15 ,  D21H17/65 ,  D21H21/16

Abstract: A method to enhance alkenyl succinic anhydride sizing on paper is disclosed there. Methods to make paper products with increased ink penetrations time are provided. Paper products with increased ink penetration time are also disclosed.

公开(公告)号：WO2018229345A1

公开(公告)日：2018-12-20

申请号：PCT/FI2018/050465

申请日：2018-06-15

Applicant: KEMIRA OYJ

Inventor： JACKSON, Logan ,  LU, Chen ,  RABIDEAU, Jenna

IPC: D21H17/37 ,  D21H17/36 ,  D21H17/42 ,  D21H17/44 ,  D21H17/51 ,  D21H17/66 ,  D21H21/18 ,  D21H21/20

CPC classification number: D21H21/18 ,  D21H17/36 ,  D21H17/37 ,  D21H17/375 ,  D21H17/42 ,  D21H17/44 ,  D21H17/51 ,  D21H17/66 ,  D21H21/20

Abstract: The invention relates to a strength additive system for manufacturing paper, board, tissue or the like. The system comprises, preferably as separate components, a cationic strength agent, such as a cationic polymer with aldehyde functional groups, and an anionic copolymer obtained by polymerization of a reaction mixture comprising (meth)acrylamide and anionic monomers, the standard viscosity of the obtained copolymer being in the range of 1.5 – 5.0 m Pas. The invention relates also to a method for manufacturing of a paper, board, tissue or the like.