David A Calhoun

US Patent:

20190093291, Mar 28, 2019

Filed:

Mar 17, 2017

Appl. No.:

16/085800

Inventors:

- Harmony PA, US
- Dalton GA, US
Axel HINRICHS - Acworth GA, US
Matthew Lee HENSON - Acworth GA, US
Chad D. LANDS - Chatsworth GA, US
Erin Anderson TIDWELL - Caulhoun GA, US
David CALHOUN - Dalton GA, US

Assignee:

Advanced Polymer Technologies Corp. - Harmony GA
Synthetic Turf Resources Corp. - Dalton GA

International Classification:

E01C 13/08
C08G 18/62
C08G 18/40
C08G 18/42
C08G 18/48
C08G 18/76

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.