Rigid zeolite containing polyurethane foams
Patent
·
OSTI ID:865461
- Livermore, CA
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.
- Research Organization:
- AT&T
- DOE Contract Number:
- AC04-76DP00789
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Number(s):
- US 4518718
- OSTI ID:
- 865461
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
rigid
zeolite
containing
polyurethane
foams
closed
cell
foam
prepared
contains
60
weight
molecular
sieves
capable
sorbing
molecules
effective
critical
diameters
10
ang
sieve
component
preloaded
catalysts
reactive
compounds
released
activation
control
complete
crosslinking
formed
loaded
water
flame-retarding
agents
completion
50
isocyanate
replaced
polyimide
resin
precursors
incorporation
final
polymeric
network
closed cell
molecular sieves
polyurethane foams
polyurethane foam
molecular sieve
polyimide resin
polymeric network
active compound
rigid polyurethane
containing poly
/521/
zeolite
containing
polyurethane
foams
closed
cell
foam
prepared
contains
60
weight
molecular
sieves
capable
sorbing
molecules
effective
critical
diameters
10
ang
sieve
component
preloaded
catalysts
reactive
compounds
released
activation
control
complete
crosslinking
formed
loaded
water
flame-retarding
agents
completion
50
isocyanate
replaced
polyimide
resin
precursors
incorporation
final
polymeric
network
closed cell
molecular sieves
polyurethane foams
polyurethane foam
molecular sieve
polyimide resin
polymeric network
active compound
rigid polyurethane
containing poly
/521/