Using a polyol mixture comprising PBD for creating a PU-based artificial turf

US11473249B2 · kind B2 · utility

Assignees

• Advanced Polymer Technologies Corp. · US
• Synthetic Turf Resources Corp. · US

Inventors

• Stephan SICK · Willich, DE
• Frank Lucarelli · Zelienople, US
• Axel Hinrichs · Acworth, US
• Andreas Schulze-Ising · Dorpsstraat, US
• Matthew Lee Henson · Acworth, US
• Erin Anderson Tidwell · Morgan, US

Key dates

• Filing date: Mar 17, 2017
• Grant date: Oct 18, 2022
• Expiry date: Jul 28, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/23993
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A method of manufacturing an artificial turf includes creating fluid polyurethane mass. The creation including reacting first and second polyols with an isocyanate. The first polyol is a polyether polyol and/or a polyester polyol having at least 2 hydroxyl groups per molecule, the second polyol being polybutadien diol. The isocyanate including isocyanate monomers, isocyanate polymers or isocyanate prepolymers or a mixture thereof, the isocyanate monomers, isocyanate polymers and the isocyanate prepolymers having two or more isocyanate groups per molecule. The method further includes incorporating an artificial turf fiber into a carrier such that a first portion of the fiber protrudes to the front side of the carrier and that a second portion of the fiber is located at the back side of the carrier, adding the fluid polyurethane mass on the back side of the carrier, and hardening the fluid polyurethane mass.