Polymerized Ester Gum
Glycerin Ester of Polymerized Rosin (Polymerized Ester Gum) is a kind of light yellow transparent solid which is esterified with refined special grade polymerized rosin and food grade glycerin.
Used as basic material for gum base with the property of easily becoming bubble and resisting chewing. It can act as anti-oxidant and keeping soft and with good taste in bubble gum and chewing gum. It can be also used as emulsification stabilizer in soft drinks.
Substance Identification
| Synonyms | |
| CAS | 9006-47-7 |
| EINECS | N/A |
| FEMA | N/A |
| HS.CODE | N/A |
| Molecular Formula | N/A |
| Molecular Weight | N/A |
Application & Uses
- material for gum base
- stabilizer in soft drinks
Sales Specification
| ITEM | VALUE | TEST METHOD & UNIT |
|---|---|---|
| Appearance | Light yellow transparent solid | |
| Acid Value | 3.0 to 9.0 | mgKOH/g |
| Colour, | 8 max | @ Fe-co |
| Softening Point, | 96 to 120 | @ R&B, °C |
| As Content | 0.0003 max | % |
| Pb Content, | 0.0003 max | % |
| Heavy Metal Content | 0.004 max | @%, Pb |
Q&A
How does Polymerized Ester Gum PG1008 relate to the broader ester gum category?
PG1008 belongs to the ester gum family — it is the glycerol ester of polymerised rosin, whereas the more commonly encountered ester gum is the glycerol ester of gum rosin. The polymerised rosin starting material gives PG1008 a higher softening point (96–120°C versus approximately 82–90°C for standard ester gum), which tends to suit formulations requiring a harder or more heat-resistant resin base.
What advantage does the higher softening point of PG1008 offer in chewing gum formulations?
The higher softening point of PG1008 tends to produce a harder and more elastic gum base, which may support better bubble formation and greater chew resistance — properties that are particularly relevant for bubble gum rather than standard chewing gum. Formulators adjusting from regular ester gum typically need to rebalance the overall gum base composition to account for this difference in hardness.
What storage considerations apply to PG1008, particularly regarding flaked forms?
Flaked forms of PG1008 present a large surface area that tends to make them more susceptible to gradual oxidation, potentially resulting in darkening and reduced solubility in organic solvents over time. Strict FIFO inventory management, sealed storage away from oxidising agents, and cool, dry conditions are recommended to mitigate these effects and maintain consistent material performance.
GHS Hazard Statements
| No GHS data available |
Storage
- Store in a cool, dry place
- Store in a tightly closed container
- Avoid contact with light
- Keep separated from incompatible substances
- Store and handle in accordance with all current regulations and standards
- Flaked forms present a large surface area and are prone to gradual oxidation, which may cause darkening and reduce solubility in organic solvents; strict FIFO inventory management is recommended, ensuring the oldest materials are used first
Relation Products
Remark
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