Tough, fire resistant polyurethane foam and method of manufacture thereof

• US 20020040978A1
• Filed: 06/28/2001
• Published: 04/11/2002
• Est. Priority Date: 06/28/2000
• Status: Active Grant

• Current Assignee: World Properties Incorporated
• Original Assignee: World Properties Incorporated
• Inventors: Simpson, Scott S., Narayan, Sujatha
• Granted Patent: US 6,559,196 B2
• Time in Patent Office: Days
• US Class Current: 252/609
• CPC Class Codes: C08G 18/0876 the dispersing or dispersed phase being a polyol
• CPC Class Codes: C08G 18/0885 using additives, e.g. absorbing agents
• CPC Class Codes: C08G 18/222 metal compounds not provided for in groups C08G18/225 - C08G18/26
• CPC Class Codes: C08G 18/3853 containing cyanurate and/or isocyanurate groups
• CPC Class Codes: C08G 18/4018 Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
• CPC Class Codes: C08G 18/4072 Mixtures of compounds of group C08G18/63 with other macromolecular compounds
• CPC Class Codes: C08G 18/409 Dispersions of polymers of C08G in organic compounds having active hydrogen
• CPC Class Codes: C08G 18/4277 Caprolactone and/or substituted caprolactone
• CPC Class Codes: C08G 18/4841 containing oxyethylene end groups
• CPC Class Codes: C08G 18/632 onto polyethers
• CPC Class Codes: C08G 18/797 containing carbodiimide and/or uretone-imine groups
• CPC Class Codes: C08G 2101/00 Manufacture of cellular products
• CPC Class Codes: C08G 2110/0008 flexible
• CPC Class Codes: C08G 2110/0066 ≥ 150kg/m3
• CPC Class Codes: C08G 2290/00 Compositions for creating anti-fogging
• CPC Class Codes: C08J 2375/04 Polyurethanes
• CPC Class Codes: C08J 9/30 by mixing gases into liquid compositions or plastisols, e.g. frothing with air

Abstract

Compositions for the formation of temperature resistant, tough, flame retardant polyurethane foams, comprising a low VOC polyisocyanate component wherein the isocyanate is a low functionality isocyanate; a low VOC active-hydrogen containing component substantially reactive with the low functionality isocyanate to form a polyurethane; a surfactant composition; and a catalyst component, wherein the total mass loss of the foam is less than 1% by weight as measured by ASTM E595. The foams are useful as gasketing materials, for example.

Claims