公开(公告)号：US11661705B2

公开(公告)日：2023-05-30

申请号：US16764262

申请日：2018-12-17

Applicant: COATEX

Inventor： Francis Bony ,  Clementine Champagne ,  Francois Dupont ,  Laurie Parrenin ,  Jean-Marc Suau

IPC: D21H19/58 ,  C09D133/08 ,  C09D133/10 ,  C09D133/14 ,  C09D171/02 ,  D21H19/38 ,  D21H19/60 ,  D21H21/52 ,  C08K7/18 ,  C08L33/02 ,  C08L71/02 ,  C08L99/00 ,  D21H23/30

CPC classification number: D21H19/58 ,  C08K7/18 ,  C08L33/02 ,  C08L71/02 ,  C08L99/00 ,  C09D133/08 ,  C09D133/10 ,  C09D133/14 ,  C09D171/02 ,  D21H19/385 ,  D21H19/60 ,  D21H21/52 ,  D21H23/30 ,  C08L2201/54

Abstract: The invention relates to a paper coating slip composition comprising a copolymer of thickening acrylic acid, a mineral material in the form of particles, a binding agent, and water. The invention also relates to the use of said composition for the production of paper or cardboard, improving the water retention of the paper coating slip.

公开(公告)号：US11214641B2

公开(公告)日：2022-01-04

申请号：US16327020

申请日：2017-09-29

Applicant: COATEX

Inventor： Yves Matter ,  Jean-Marc Suau ,  Francis Bony ,  Francois Dupont

IPC: C08F220/28 ,  C08F216/14 ,  C08K5/42 ,  C08F265/04 ,  C08F2/22 ,  C08K3/013 ,  C08K3/22 ,  D21H19/60 ,  C09D1/12 ,  C09D7/44 ,  C09D5/04 ,  C09D7/43 ,  D21H19/20 ,  D21H19/82 ,  D21H19/58 ,  D21H19/56 ,  C08K3/26 ,  C08K3/34 ,  C08L33/04

Abstract: The invention relates to a copolymer obtained by polymerisation reaction of at least three comonomers: a first anionic monomer, a second monomer comprising an olefin unsaturation, and a third monomer comprising a hydrophobic group. The invention likewise relates to the use of said copolymer as a thickening agent, in particular in aqueous suspensions of mineral particles with high solids content. The copolymer according to the invention makes it possible to improve the compromise between viscosity with high shear gradient and viscosity with low shear gradient, while also improving water retention inside the suspension.