Polyurethane catalyst compositions for improving foam performanc

Details Polyurethane catalyst compositions for improving foam performanc Polyurethane catalyst compositions for improving foam performanc

1997-05-21

1999-01-12

Cooney, Jr., John M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521128, 521155, 521170, C08J 904

Patent

active

058590790

ABSTRACT:
A polyurethane catalyst composition comprises N,N'-bis(3-dimethylaminopropyl) urea and 3-dimethylaminopropyl urea in a ratio that can be varied to systematically control flowability, airflow, and force-to-crush physical properties for flexible polyurethane foam to enhance processibility. Increasing the N,N'-bis(3-dimethylaminopropyl) urea to 3-dimethylaminopropyl urea ratio increases the airflow and decreases the force-to-crush values of the foam whereas decreasing the N,N'-bis(3-dimethylaminopropyl) urea to 3-dimethylaminopropyl urea ratio improves the flowability of the foam.

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patent: 5057480 (1991-10-01), Petrella

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