Polyurethane foam and associated method and article

A technology of polyurethane foam and blowing agent, applied in the field of polyurethane foam and related and products

Active Publication Date: 2016-05-04
SHPP GLOBAL TECH BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This diversity results in a large number of polymer structures and performance profiles

Method used

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  • Polyurethane foam and associated method and article
  • Polyurethane foam and associated method and article
  • Polyurethane foam and associated method and article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0059] Embodiment 1: A polyurethane foam comprising the product of a reaction mixture comprising: a polyol comprising a poly(ethylene glycol) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule phenyl ether); an aromatic isocyanate compound having an average of at least 2 isocyanate groups per molecule; and a blowing agent; wherein the reaction mixture is characterized by an isocyanate index of 65 to 95; and wherein the polyurethane foam has an isocyanate index according to ASTM D3574- 08 Test A Density of 0.01 to 0.16 g / cm3 measured at 23°C.

Embodiment approach 2

[0060] Embodiment 2: The polyurethane foam of Embodiment 1, wherein the poly(phenylene ether) is a copolymer comprising monomers of monohydric and dihydric phenols.

Embodiment approach 3

[0061] Embodiment 3: The polyurethane foam of Embodiment 2, wherein the monohydric phenol comprises 2,6-dimethylphenol and the dihydric phenol comprises 2,2-bis(3,5-dimethyl-4-hydroxybenzene base) propane.

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Abstract

The invention provides a polyurethane foam and associated method and article. The polyurethane foam is prepared from a reaction mixture that includes an aromatic isocyanate compound, and blowing agent, and a polyol that itself includes a poly(phenylene ether) having a number average molecular weight of 600 to 2000 atomic mass units and an average of 1.5 to 3 hydroxyl groups per molecule. Use of the poly(phenylene ether) is associated with faster formation of polyurethane, and increased compression force deflection. The polyurethane is useful for forming articles including bedding, furniture, automotive interiors, mass transportation interiors (seating, padding, instrument panels, door panels, steering wheels, armrests, and headrests), flooring underlay (foam, rebond binder), packaging, textiles, lining and gasketing applications, acoustic dampening materials, and weather stripping.

Description

Background technique [0001] Polyurethanes are prepared from compounds having at least two hydroxyl groups and compounds having at least two isocyanate groups. See, eg, D. Randall and S. Lee, "The Polyurethanes Book", New York: John Wiley & Sons, 2003; and K. Uhlig, "Discovering Polyurethanes", New York: Hanser Gardner, 1999. The isocyanate group of the isocyanate compound reacts with the hydroxyl group of the hydroxy compound to form a urethane bond. In many cases, the hydroxyl compound is a low molecular weight polyether or polyester. The isocyanate compound can be aliphatic or aromatic, and is generally difunctional (ie, it is a diisocyanate) in the preparation of linear polyurethanes. However, isocyanate compounds with greater functionality are used in the preparation of thermoset polyurethanes. The family of polyurethane resins is very complex because of the large variety of compositional characteristics of hydroxyl compounds and isocyanate compounds. This diversity re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/76C08L75/08C08J9/04C08G101/00
CPCC08G18/4804C08G18/4812C08G18/4816C08G18/4829C08G18/4879C08G2101/00C08G18/14C08G2110/005C08G2110/0058C08G2110/0083
Inventor 爱德华·诺曼·彼得斯
Owner SHPP GLOBAL TECH BV
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