E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
31/22
E21B 43/22 (2006.01) C08G 12/40 (2006.01) C08G 12/46 (2006.01) C09K 8/508 (2006.01) C09K 8/88 (2006.01)
Patent
CA 1261607
AQUEOUS SULFOMETHYLATED MELAMINE GEL-FORMING COMPOSITIONS Abstract Aqueous gel-forming compositions are prepared by reacting for 1-10 hours at 50-95°C, melamine, formaldehyde and a sulfurous acid salt with the optional addition of a gel-modifying agent and/or a gelling agent which is added to the composition immediately prior to use.
511834
Chang Ping W.
Gruetzmacher Gordon D.
Meltz Clifford N.
Limited Pfizer
Smart & Biggar
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