Global Patent Index - EP 3617300 B1

EP 3617300 B1 20210414 - CLEANING COMPOSITION FOR METAL SURFACES

Title (en)

CLEANING COMPOSITION FOR METAL SURFACES

Title (de)

REINIGUNGSZUSAMMENSETZUNG FÜR METALLOBERFLÄCHEN

Title (fr)

COMPOSITION DE NETTOYAGE POUR SURFACES MÉTALLIQUES

Publication

EP 3617300 B1 20210414 (EN)

Application

EP 18191788 A 20180830

Priority

EP 18191788 A 20180830

Abstract (en)

[origin: EP3617300A1] The present invention is directed to a cleaning composition suitable for metallic surfaces of vehicles, said composition comprising, based on the weight of the composition:from 75 to 90 wt.% of A) at least one compound defined by Formula (I)         R<sup>1</sup>-O-(M-O)<sub>n</sub>-R<sup>2</sup>     (I)wherein: R<sup>1</sup>and R<sup>2</sup>are independently selected from hydrogen and C<sub>1</sub>-C<sub>6</sub>alkyl groups;each M is independently selected from C<sub>1</sub>-C<sub>6</sub>alkylene groups; and,n is an integer of from 1 to 5;from 5 to 15 wt.% of B) at least one acetal defined by Formula (II) below:wherein: R<sup>3</sup>and R<sup>4</sup>are independently selected from hydrogen, C<sub>1</sub>-C<sub>6</sub>alkyl, C<sub>2</sub>-C<sub>6</sub>-alkenyl, C<sub>6</sub>-C<sub>10</sub>aryl, C<sub>3</sub>-C<sub>6</sub>cycloalkyl, OR<sup>5</sup>and OR<sup>6</sup>;R<sup>5</sup>and R<sup>6</sup>are independently selected from C<sub>1</sub>-C<sub>12</sub>alkyl, C<sub>2</sub>-C<sub>6</sub>-alkenyl, C<sub>6</sub>-C<sub>10</sub>aryl, C<sub>3</sub>-C<sub>8</sub>cycloalkyl and -(AO)x-R<sup>7</sup>;A is -C<sub>2</sub>H<sub>4</sub>-, -C<sub>3</sub>H<sub>7</sub>- or -C<sub>4</sub>H<sub>8</sub>-;x is an integer of from 1 to 4; and,R<sup>7</sup>is C<sub>1</sub>-C<sub>12</sub>alkyl, C<sub>2</sub>-C<sub>6</sub>-alkenyl, C<sub>6</sub>-C<sub>10</sub>aryl or C<sub>3</sub>-C<sub>8</sub>cycloalkyl; and,from 1 to 10 wt.% of C) at least hydroxyalkylamino compound defined by Formula (III) belowwherein: R<sup>8</sup>is selected from hydrogen, C<sub>1</sub>-C<sub>6</sub>alkyl, 2-hydroxyethyl and 2-hydroxypropyl;R<sup>9</sup>is C<sub>2</sub>-C<sub>6</sub>alkyl; and,R<sup>10</sup>is C<sub>2</sub>-C<sub>6</sub>alkyl.

IPC 8 full level

C11D 7/26 (2006.01); C11D 7/32 (2006.01); C11D 17/04 (2006.01)

CPC (source: EP)

C11D 7/263 (2013.01); C11D 7/264 (2013.01); C11D 7/3218 (2013.01); C11D 17/049 (2013.01)

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 3617300 A1 20200304; EP 3617300 B1 20210414; WO 2020043509 A1 20200305

DOCDB simple family (application)

EP 18191788 A 20180830; EP 2019072007 W 20190816