Castable polyurethane elastomers for industrial rollers

Details Castable polyurethane elastomers for industrial rollers Castable polyurethane elastomers for industrial rollers

1997-06-11

1999-11-30

Short, Patricia A.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525131, 528 61, 528 63, 528 64, 528 75, C08G 1866

Patent

active

059944668

ABSTRACT:
The present invention relates to polyurethane elastomer systems for industrial and paper mill rolls and more particularly to polyurethane covered rolls made from a new polyurethane composition of a polyurethane prepolymer cured with an aromatic diamine and a hydroxyl-terminated polybutadiene resin. Rolls made with this new polyurethane composition exhibit improved dynamics, hydrolytic stability, and reduced water vapor transmission over conventional polyurethane elastomer systems.

REFERENCES:
patent: 4053446 (1977-10-01), Watabe
patent: 4343339 (1982-08-01), Schwindt

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