Very fine cell polyurethane foams and processes for producing th

Details Very fine cell polyurethane foams and processes for producing th Very fine cell polyurethane foams and processes for producing th

1997-02-18

2000-10-24

Mullis, Jeffrey C.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521174, 521176, C08G 1876, C08G 1848

Patent

active

061368784

ABSTRACT:
The present invention relates to very fine cell flexible polyurethane foams having at least 87 pores per linear inch (as measured by pressure drop techniques) wherein at least 65% of the isocyanate equivalents of said polyurethane are obtained from MDI. The invention also relates to processes for preparing the very fine cell polyurethane foams.

REFERENCES:
patent: 5124367 (1992-06-01), Barker et al.
patent: 5436277 (1995-07-01), Narayan et al.
patent: 5491176 (1996-02-01), Huygens
patent: 5773483 (1998-06-01), Eling et al.
Orbit Abstract of CA 2,136,463 (Aug. 4, 1995).

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