Alkylated amino resins properties

Properties. Alkylated amino resins can be classified into two general classes (1) polymeric, partially alkylated resins which have a lower solids content and (2) the more monomeric, fully and partially alkylated products which have a higher solids content. 

The fully alkylated amino resin is characterized by its degree of alkylation and polymerization, and its residual hydroxymethyl and amino content, all of which can significantly affect physical and chemical properties. 

In the case of water-borne coatings, the film properties have also been shown to depend on the nature of the alkylating alcohol. For example, ethanol etherified amino resins have been shown to exhibit high hardness and poor film appearance compared to HMM resins. This has been attributed to the poor compatibility of such resins with alkyd resins. Mechanical properties of paint films based on HMM resin vary depending on whether the paint system is water-borne or solvent-based." This difference has been assigned to the different network structures due to the blocking of... 

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