# US 10,870,952 B2 · Using a polyol mixture comprising PBD for creating a PU-based artificial turf

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,870,952 B2
- Document ID: US10870952B2
- Status: Granted
- Kind: B2
- Application number: 15/074,136
- Filed: 2016-03-18
- Published: 2017-09-21
- Granted: 2020-12-22
- Earliest claimed: 2016-03-18
- Assignees: Advanced Polymer Technologies Corp.
- Applicants: Advanced Polymer Technologies Corp.
- Inventors: Stephan Sick; Frank Lucarelli; Axel Hinrichs; Andreas Schulze-Ising
- Web page: https://patentgrep.com/patent/US10870952B2

## CPC

- E01C 13/08: Surfaces simulating grass {; Grass-grown sports grounds (grass-like surfaces for skiing E01C13/12)}
- B05D 1/26: performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
- B05D 3/02: by baking {(B05D3/04 takes precedence)}
- C08G 18/4063: {Mixtures of compounds of group C08G18/62 with other macromolecular compounds}
- C08G 18/42: Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G 18/4825: {Polyethers containing two hydroxy groups (C08G18/4833 - C08G18/5096 take precedence)}
- C08G 18/6208: {Hydrogenated polymers of conjugated dienes}
- C08G 18/7671: {containing only one alkylene bisphenyl group}
- D06N 7/0071: {characterised by their backing, e.g. pre-coat, back coating, secondary backing, cushion backing}
- B05D 2503/00: Polyurethanes
- D06N 2203/068: Polyurethanes
- D10B 2401/06: Load-responsive characteristics
- D10B 2505/202: Artificial grass
- Y10T 428/23979: Particular backing structure or composition
- Y10T 428/23986: With coating, impregnation, or bond
- Y10T 428/23993: Composition of pile or adhesive
- E01C: CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR (forming roads or like surfaces by compacting or grading snow or ice E01H)
- B05D: PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL (conveying articles or workpieces through baths of liquid B65G, e.g. B65G49/02)
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- D06N: WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Method of manufacturing an artificial turf includes: creating fluid polyurethane mass, the creation comprising reacting first and second polyols with an isocyanate, the first polyol being a polyether polyol and/or a polyester polyol having at least 2 hydroxyl groups per molecule, the second polyol being polybutadiendiol; the isocyanate comprising 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; 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; and adding the fluid polyurethane mass on the back side of the carrier; and hardening the fluid polyurethane mass.

## Claims

### Claim 1

An artificial turf, comprising:
a polyurethane backing formed from a non-foamed liquid polyurethane mass, the non-foamed liquid polyurethane mass being a reaction product of first and second polyols with an isocyanate,
the first polyol being a polyether polyol and/or a polyester polyol having at least 2 hydroxyl groups per molecule, the second polyol being polybutadiendiol, and
the isocyanate including isocyanate monomers, isocyanate polymers, or isocyanate prepolymers, or a mixture thereof, the isocyanate monomers, the isocyanate polymers, and the isocyanate prepolymers having two or more isocyanate groups per molecule;
a carrier; and
an artificial turf fiber incorporated into the carrier such that a first portion of the artificial turf fiber protrudes to a front side of the carrier and that a second portion of the artificial turf fiber is located at a back side of the carrier, at least the second portion of the artificial turf fiber being incorporated into the polyurethane backing,
wherein the polybutadiendiol has an amount of 4.0-8.0% by weight of a combination of the first polyol and the isocyanate,
wherein the carrier includes perforations, wherein the polyurethane backing is positioned on the back side of the carrier, in the perforations of the carrier and on the front side of the carrier, and
wherein at least a portion of the first portion of the artificial turf fiber is incorporated into the polyurethane backing.

### Claim 2 (depends on 1)

The artificial turf of claim 1, wherein the artificial turf is manufactured based on
creating the non-foamed liquid polyurethane mass, the creating including reacting the first and second polyols with the isocyanate;
incorporating the artificial turf fiber into the carrier such that the first portion of the artificial turf fiber protrudes to the front side of the carrier and that the second portion of the artificial turf fiber is located at the back side of the carrier;
adding the non-foamed liquid polyurethane mass on the back side of the carrier, the non-foamed liquid polyurethane mass thereby incorporating at least the second portion of the artificial turf fiber; and
hardening the non-foamed liquid polyurethane mass on the back side of the carrier.

### Claim 3 (depends on 2)

The artificial turf of claim 2, wherein the non-foamed liquid polyurethane mass has a density of more than 1000 g/l.