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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Bannister; Richard N.
Address:
Sheffield, GB2
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4132699 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










 
 
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