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1. Café
Curriculum
Advances
Fundamental
Excellence
Coatings
PN100 03 Melamine Resins Part 2

2. Portfolio of Melamine Resins
Ratio of Formaldehyde and Alcohol to
One Mole of Melamine
ROH
CH
2O
HMMM

3. PN100-Module 03
Melamine Resins Part 2
Learning Objectives:
1.How are the main classifications of
melamine resins?
2.What is the distribution of the functional
group in a melamine resin?
3.How does the functional group structure
relate to the physical and chemical
properties?

4. Classes of Melamine Resins
Class I
Low N-H
Class II
High N-H
Defined by the molar
ratio of formaldehyde
added to melamine in
Step 1: Methylolation

5. Class I Melamine Resins
Class I
Low N-H
Colloquial terms: “fully etherified” or
fully/highly alkylated, or monomeric, high
solids

6. Class II Melamine Resins
Class II
High N-H
Colloquial terms: “partially alkylated” or
polymeric, high imino, “butylated”
OR
OR
ROH

7. Portfolio of Melamine Resins
Ratio of Formaldehyde and Alcohol to
One Mole of Melamine

8. Molar Ratios of Functional Groups
OH
CLASS I
CLASS II

9. Class I
Low N-H
Class II
High N-H
“Fully”

10. PN100-Module 02
Introduction to Melamine Resins
Café
Curriculum
Advances
Fundamental
Excellence
Coatings