SciTech Connect

Title: Rigid zeolite containing polyurethane foams

Rigid zeolite containing polyurethane foams A closed cell rigid polyurethane foam has been prepared which contains up to about 60% by weight of molecular sieves capable of sorbing molecules with effective critical diameters of up to about 10 .ANG.. The molecular sieve component of the foam can be preloaded with catalysts or with reactive compounds that can be released upon activation of the foam to control and complete crosslinking after the foam is formed. The foam can also be loaded with water or other flame-retarding agents, after completion. Up to about 50% of the weight of the isocyanate component of the foam can be replaced by polyimide resin precursors for incorporation into the final polymeric network.
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 865461
Report Number(s):US 4518718
DOE Contract Number:AC04-76DP00789
Resource Type:Patent
Research Org:AT & T CORP
Country of Publication:United States
Language:English
Subject: rigid; zeolite; containing; polyurethane; foams; closed; cell; rigid; polyurethane; foam; prepared; contains; 60; weight; molecular; sieves; capable; sorbing; molecules; effective; critical; diameters; 10; ang; molecular; sieve; component; foam; preloaded; catalysts; reactive; compounds; released; activation; foam; control; complete; crosslinking; foam; formed; foam; loaded; water; flame-retarding; agents; completion; 50; weight; isocyanate; component; foam; replaced; polyimide; resin; precursors; incorporation; final; polymeric; network; closed cell; molecular sieves; polyurethane foams; polyurethane foam; polyurethane foam; molecular sieve; molecular sieve; polyimide resin; polymeric network; active compound; rigid polyurethane; containing poly /521/