Rosin, Maleated
Synonyms
Gum rosin, maleic anhydride resin;
Rosin, maleic acid polymer;
Rosin,maleic anhydride adduct;
Rosin-maleic anhydride reaction product;
Maleated rosin;
Category
Anionic Surfactant
> Carboxylate
>> Cyclic Carboxylate
>>> Alicyclic Carboxylate
>>>> Tricyclic Diterpene Carboxylate and its Derivatives
Chemical Numbering System
CAS: 8050-28-0
EINECS: 232-480-4
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Main ingredient:
Properties
Appearance (1), yellow-red to red-brown solid.
Solubility insoluble in water, soluble in ethanol, benzene.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent film-forming, emulsifying, dispersing, lubricating, solubilizing, wetting abilities. High softening point.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
|
115# |
103# |
|
|
Actives, %, ≥ |
95.0 |
95.0 |
|
Acid value, mg/g, ≥ |
220 |
178 |
|
Softening point (Ring and ball method), °C, ≥ |
106 |
84 |
|
Saponification value, mg/g, ≥ |
280 |
192 |
|
Maleic anhydride adduct, %, ≥ |
47 |
10 |
|
Ethanol insoluble material, %, ≤ |
0.06 |
0.05 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
GB/T 5173 Surface active agents and detergents -- Determination of anionic-active matter by direct two-phase titration procedure
ISO 2271 Surface active agents -- Detergents -- Determination of anionic-active matter by manual or mechanical direct two-phase titration procedure
(2), Indexes other than "Actives"
GB/T 14021 Maleated rosin
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid |
|
|
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, Product standards
(1), Chinese standards
(1a), GB/T 14021 Maleated rosin
4, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
Major Uses
1, Typical applications
Use as emulsifying agent, dispersing agent.
Use as lubricant.
2, Organic synthesis
Used in manufacture of maleated rosin esters. Maleated rosin esters are widely used in paints, printing inks, adhesives and other fields.
3, Adhesive
Use as adhesive.
4, Rubber
Softening agent, plasticizer, vulcanization promoting agent in synthetic rubber. Can enhance strength of synthetic rubber.
5, Paper
Fortified sizing agent in paper.
6, Coatings
Film-forming agent, drier in paint. For example, quick-drying alkyd paint.
Coloring carrier in printing ink.
7, Pigment
Wetting agent in pigments.
Manufacturers
Update: 20131114(1); 20181023(2);