Amphiphilic block copolymers and machine dishwashing detergents containing these

US9458416B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Benoit Luneau · Ratingen, DE
• Christian Kropf · Hilden, DE
• Mareile Job · Leverkusen, DE
• Nina Mussmann · Willich, DE
• Thomas Eiting · Goldkronach, DE
• Konstantin Benda · Goldkronach, DE
• Thorsten Bastigkeit · Wuppertal, DE
• Quang N. Tran · Marseilles, FR
• Trang Phan · Marseilles, FR
• Didier Gigmes · Allauch, FR
• Denis Bertin · Marseilles, FR

Key dates

• Filing date: May 20, 2015
• Grant date: Oct 4, 2016
• Expiry date: May 20, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2438/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

It is possible to prevent or at least mitigate discoloration of plastics tableware during machine dishwashing by using amphiphilic block copolymers of -An-Bm- type, where A represents the hydrophilic monomer unit of the hydrophilic block An and B represents the hydrophobic monomer unit of the hydrophobic block Bm and a diene serves as monomer for the hydrophobic monomer unit B.