Carbohydrate polyamine binders and materials made therewith

US11078332B2 · kind B2 · utility

Assignees

• Knauf Insulation, Inc. · US
• Knauf Insulation SPRL · BE

Inventors

• Charles Fitch Appley · Cumberland, US
• Carl Hampson · St. Helens, GB
• Gert Mueller · New Albany, US
• Benedicte Pacorel · St. Helens, GB

Key dates

• Filing date: May 5, 2020
• Grant date: Aug 3, 2021
• Expiry date: May 5, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L97/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A binder comprising the products of a carbohydrate reactant and polyamine is disclosed. The binder is useful for consolidating loosely assembled matter, such as fibers. Uncured fibrous products comprising fibers in contact with a carbohydrate reactant and a polyamine are also disclosed. The binder composition may be cured to yield a fibrous product comprising fibers bound by a cross-linked polymer. Further disclosed are methods for binding fibers with the carbohydrate reactant and polyamine based binder.