Process for making microcellular polyurethane elastomers

Details Process for making microcellular polyurethane elastomers Process for making microcellular polyurethane elastomers

1998-09-25

2000-08-08

Cooney, John M.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521170, 521174, C08G 1804

Patent

active

061003107

ABSTRACT:
Microcellular elastomers and a process for making them are disclosed. The process comprises reacting a resin component ("B" side) with an isocyanate-terminated prepolymer ("A" side). Pre-reacting the right proportion of chain extender into an "A" side that also includes a high-primary, low-unsaturation polyol is the key to making low-density (less than 0.5 g/cm.sup.3) microcellular elastomers while avoiding problems with poor processing or inferior physical properties. The process is easy to practice, and provides lighter, high-quality polyurethane products, including protective sports equipment, arm rests or steering wheels for the auto industry, and midsoles or shoe soles for footwear.

REFERENCES:
patent: 4559366 (1985-12-01), Hostettler
patent: 4687851 (1987-08-01), Laughner
patent: 5106874 (1992-04-01), Porter et al.
patent: 5250582 (1993-10-01), Hire et al.
patent: 5284880 (1994-02-01), Harrison et al.
patent: 5470813 (1995-11-01), Le-Khac
patent: 5482908 (1996-01-01), Le-Khac
patent: 5618967 (1997-04-01), Narayan et al.
patent: 5658959 (1997-08-01), Voloppi et al.
patent: 5677413 (1997-10-01), Barksby et al.
patent: 5696221 (1997-12-01), Barksby et al.
patent: 5728745 (1998-03-01), Allen et al.
patent: 5792829 (1998-08-01), Allen et al.

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