Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1981-01-09
1982-05-04
Ziegler, J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525517, 524597, C08G 836, C08G 6132
Patent
active
043283268
ABSTRACT:
Partially etherified melamine-formaldehyde resins having a melamine:formaldehyde molar ratio of 1:(1.25 to 1) can be prepared by a condensation reaction under neutral or weakly alkaline conditions if the condensation reaction is carried out in the presence of a glycol monoether of the general formula I
REFERENCES:
patent: 3959201 (1976-05-01), Chang et al.
patent: 4163835 (1979-08-01), Piesch
Piesch Steffen
Wolf Alfons
Cassella Aktiengesellschaft
Ziegler J.
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