Global Patent Index - EP 3425068 B1

EP 3425068 B1 20210804 - AMMONIUM AND BORIC ACID FREE DELIMING AGENT, A DELIMING PROCESS AND A USE THEREOF

Title (en)

AMMONIUM AND BORIC ACID FREE DELIMING AGENT, A DELIMING PROCESS AND A USE THEREOF

Title (de)

AMMONIUM- UND BORSÄUREFREIES ENTKÄLKUNGSMITTEL SEINE VERWENDUNGEN UND ENTKÄLKUNGSVERFAHREN

Title (fr)

AGENT DE DÉCHAULAGE EXEMPT D'AMMONIUM ET D'ACIDE BORIQUE, SES UTILISATIONS, PROCESSUS DE DÉTARTRAGE

Publication

EP 3425068 B1 20210804 (EN)

Application

EP 18181640 A 20180704

Priority

CN 2017092105 W 20170706

Abstract (en)

[origin: EP3425068A1] The present invention discloses an ammonium and boric acid free deliming agent, which comprises amino acid component and no ammonium compound; the amino acid component comprising amino acid, amino acid salt, and/or protein hydrolysate which contains amino acid and/or amino acid salt. The present invention also discloses a deliming process by using said deliming agent and the use of amino acid, amino acid salt and/or protein hydrolysate as deliming agent. The deliming agent not containing boric acid or ammonium salts is environmentally friendly and has good deliming effect.

IPC 8 full level

C14C 1/08 (2006.01)

CPC (source: CN EP)

C14C 1/08 (2013.01 - CN EP)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3425068 A1 20190109; EP 3425068 B1 20210804; CN 109295264 A 20190201; CN 109295264 B 20240423

DOCDB simple family (application)

EP 18181640 A 20180704; CN 201810735871 A 20180706