Chemical binder

Details Chemical binder Chemical binder

1995-02-21

1997-12-16

Mullis, Jeffrey

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523142, 523148, B22C 120

Patent

active

056986130

ABSTRACT:
A chemical binder comprising: an ester-based polyol; an isocyanate; and a catalyst capable of catalyzing a reaction between the ester-based polyol and the isocyanate. Preferably, the chemical binder is used in a mouldable mixture comprising a particulate aggregate and the chemical. Such a mouldable mixture would be in, for example, a disposable foundry mould or core. A process for producing a free-standing mould and a process for cast a metal are also described.

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