Search International and National Patent Collections

1. (WO2018197465) COATED CALCIUM CARBONATE FOR PITCH AND/OR STICKIES CONTROL

Pub. No.:    WO/2018/197465    International Application No.:    PCT/EP2018/060437
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: C09C 1/02
D21C 9/08
D21H 19/00
D21H 21/02
Applicants: IMERYS MINERALS LIMITED
Inventors: FINDLAY, Andrew
SCALOPPE, João
HARDISTY, Samuel
WICKS, Douglas
PRESTON, Janet
Title: COATED CALCIUM CARBONATE FOR PITCH AND/OR STICKIES CONTROL
Abstract:
Use of a particulate mineral having a coating of one or more rosin acid(s) and/or one or more derivative(s) thereof as a pitch and/or stickies control agent in a composition comprising cellulosic pulp, a method of reducing dissolved and/or colloidal pitch and/or stickies in cellulosic pulp using said coated particulate mineral, said coated particulate mineral, a method of making said coated particulate mineral, a composition comprising cellulosic pulp and said coated particulate mineral and paper comprising said coated particulate mineral.