Polyoxymethylene melamine
Synonyms
Melamine/formaldehyde resin;
Oxymethylene/melamine copolymer;
1,3,5-Triazine-2,4,6-triamine, polymer with formaldehyde;
Melamine, polymer with formaldehyde;
Category
Polymer Surfactant
> Polyamines
Chemical Numbering System
CAS: 9003-08-1
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Schematic formula:
Properties
Appearance (1), solid; or liquid.
Solubility insoluble in water; or soluble in water (prepolymer).
Stability stable.
Risk Solid form: irritation, irritation to skin, eye, respiratory system.
GHS label: 
Animal Toxicity
Table 1 Animal toxicity values
|
mouse intravenous LD50 |
1.9mg/kg[1] |
|
rabbit skin LD50 |
> 10000mg/kg[1] |
|
rat oral LD50 |
> 10000mg/kg[1] |
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, dispersing, antistatic abilities. Thermosetting resin.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid/liquid |
|
|
Actives, %, ≥ |
95.0 |
Test Methods
(1), Actives
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid/liquid |
|
|
Heavy metals (as Pb), mg/kg, ≤ |
20 |
|
As, mg/kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as non-metallic material.
Use as film-forming agent.
2, Personal care products
Film-forming agent in personal care products.
3, Adhesive
Use as adhesive. For example, be used in wood processing.
Manufacturers
References
[1]: ChemIDplus. 9003-08-1, Melamine/formaldehyde resin
Update: 20140819(1); 20200105(2);