Polyester concentrates having high stability in solution and having a greying-inhibiting effect

US8871703B2 · kind B2 · utility

Assignee

• Clariant Finance (BVI) Limited · VG

Inventors

• Roman Morschhaeuser · Mainz, DE
• Barbara Duecker · Mainz, DE
• Frank-Peter Lang · Hattersheim, DE
• Georg Borchers · Bad Nauheim, DE
• Peter Naumann · Stockelsdorf, DE

Key dates

• Filing date: Nov 24, 2010
• Grant date: Oct 28, 2014
• Expiry date: Nov 24, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/3715
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The invention relates to an aqueous polyester concentrate having a proportion by weight of polyesters of 12 to 60%, wherein the polyesters are obtainable by means of polymerization of the components selected from a) one or more sulfo group-free aromatic dicarboxylic acids and/or salts thereof and/or anhydrides thereof and/or esters thereof, b) optionally one or more sulfo group-containing dicarboxylic acids, salts thereof and/or anhydrides thereof and/or esters thereof, c) 1,2-propylene glycol, d) ethylene glycol, e) one or more compounds of the formula (1) R1O(CHR2CHR3O)nH (1), where R1 is a linear or branched, saturated or unsaturated alkyl group having from 1 to 22 C atoms, R2 and R3, independently of one another, are hydrogen or an alkyl group having from 1 to 4 carbon atoms, and n is an integer of from 1 to 50, f) optionally one or more compounds of the formula (2) H—(OCH2CH2)m—SO3X (2), where m is an integer of from 1 to 10 and X is hydrogen or an alkali metal ion, and g) optionally one or more cross-linking polyfunctional compounds, provided that at least one of the components b) or f) is present, and provided further that the molar ratio of the components c) 1,2-propylene g…