Inventor:Bannister; Richard N.
No. of patents:1
||Title Of Patent
||Phenol formaldehyde resins, their manufacture and use
||January 2, 1979|
|Low molecular weight liquid phenol formaldehyde resins and processes for producing them are described. Preferred products are used as foundry binders and are made by forming a low molecular weight liquid novolak, removing free phenol while retaining a low molecular weight, and reacting |