Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1985-04-25
1986-05-06
Schain, Howard E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
428430, 428436, 428524, 524596, 525504, 525505, 525506, 525442, 528139, 528140, 528143, 528158, C08G 828, C08G 830, C08G 834
Patent
active
045872910
ABSTRACT:
Binders are described based on acid curing phenol resins and acid curing agents which, after mixing, have an extended processability time but nevertheless exhibit a rapid curing time at relatively low temperatures. They are obtained by using, as the resin, aqueous phenol resols and, as the curing agent, either copper, aluminum, or iron(III) salts of aromatic sulfonic acids or addition products of hydroxy-containing, water-compatible polyols with aromatic sulfonic acids or mixtures of these salts and the polyol addition products. The binders are used for impregnation of fabrics, for production of abrasives and for fiber reinforced plastics.
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Adolphs Peter
Gardziella Arno
Grossmann Gerhard
Schwieger Karl-Heinz
Rutgerswerke Aktiengesellschaft
Schain Howard E.
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