Laundry detergent or cleaning product tablets with partial coating

US6340664B1 · kind B1 · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Thomas Gassenmeier · Goldkronach, DE
• Fred Schambil · Monheim, DE
• Juergen Millhoff · Goldkronach, DE

Key dates

• Filing date: Aug 25, 2000
• Grant date: Jan 22, 2002
• Expiry date: Aug 25, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D17/0082
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Partially coated laundry detergent and cleaning product tablets having advantageous properties such as high hardnesses without adverse effect on short disintegration times and high resistance to edge fracture are achieved with relatively small amounts of coating agents if the coating covers only mechanically sensitive parts of the tablets.