C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
400/7334
C08K 5/21 (2006.01) C08G 12/32 (2006.01) C08G 12/38 (2006.01) C08L 61/28 (2006.01)
Patent
CA 1191979
Abstract of Disclosure An improved process for substantially increasing the shelf-life of aqueous solutions of melamine-formaldehyde resins wherein the molar ratio of mela- mine to formaldehyde is from 101.7 to 1:3.5 by the addition of a stabilizing amount of urea after condensation, which process includes the steps of adjusting pH of the resin solution before and after the dissolution of the urea within certain narrow but easily controllable pH ranges. The properties of the resin solution can be further improved and the stabilizing effect of the addition of urea increased by adding an mono- or polyhydric C1-C4 alkanol during condensation of the resin.
392285
Chemie Linz Aktiengesellschaft
Riches Mckenzie & Herbert Llp
LandOfFree
Preparations of storage-stable aqueous solutions of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Preparations of storage-stable aqueous solutions of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparations of storage-stable aqueous solutions of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1255391