Polyethermodifiziertes Organopolysiloxan

Details

Veröffentlichungs-Nr.

EP4800055

Anmeldetag

25. Oktober 2024

Veröffentlichung

1. Mai 2025

Rechtsraum

EP

Abstract

[Object] The object of the present invention is to provide a polyether-modified organopolysiloxane which has a polyether chain and exhibits good water solubility without impairing the characteristics of siloxane.[Solution] A polyether-modified organopolysiloxane represented by the following formula (1), having a block copolymer structure comprising a polyoxyethylene block structure and a polyoxypropylene block structure:wherein R is, independently of each other, a group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms; x is an integer of 1 to 100; and R¹ is, independently of each other, a group represented by the following formula (2): wherein R² is an alkyl group having 1 to 12 carbon atoms or an acetyl group; n is an integer of 2 to 10; a is an integer of 3 to 60; b is an integer of 3 to 60; a and b satisfy b/(a + b) being in the range of 0.3 to 0.8; and the oxypropylene units in parentheses with the subscript a and the oxyethylene units in parentheses with the subscript b each have a polyblock structure in the sequence shown in formula (2).

Anmelder

Firmen

SHIN-ETSU CHEMICAL CO., LTD.
NOF Corporation

Land

🇯🇵 Japan