CAS:135861-56-2
Molecular Formula:C24H30O6
Molecular Weight:C24H30O6
EINECS:413-110-2
Synonyms:Bis(3,4-dimethylbenzylidene)sorbitol;DIMETHYLDIBENZYLIDENESORBITOL;1,3:24-BIS(3,4-DIMETHYLOBENZYLIDENO)SORBITOL;DMDBS;NucleatingAgent3988;1,3:24- BIS (3,4-DIMETHYLOBENZYLIDENO)SORBITOL (DMDBS);
1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol CAS 135861-56-2 is a sorbitan nucleating transparent agent, by providing crystal nuclei to promote the crystallization of resin, so that the structure of the grain is fine, so as to improve the stiffness of the product, thermal deformation temperature, dimensional stability and transparency and surface gloss.
Melting point: 250 – 280 °C. Good thermal stability, suitable for processing temperatures of polypropylene.
Solubility: Insoluble in water; soluble in some organic solvents.
Features: Low odor. Overcomes the defect of unpleasant odor during high-temperature processing of the old DBS nucleating agent. Compliant with food contact requirements.
| ITEM | STANDARD |
| Appearance | White loose powder |
| Purity | 98.0(%≥) |
| Melting Point | 270±5(℃) |
| Volatile Matter | 1.0(%≤) |
| Odor | Odorless |
Nucleating agent HX-3, as a nucleating transparent agent, is suitable for transparent materials such as plastic wrap, disposable water cups, tableware and stationery.
1. Excellent transparent and anti-reflective effect
1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol can refine the crystal size of PP, significantly reduce the haze of the product, and enhance transparency and surface gloss; a low addition amount of only 0.1-0.3% can achieve a high transparency effect, and its anti-reflective ability is superior to the first-generation DBS and the second-generation MDBS sorbitol nucleating agent.
2. Low odor, friendly to processing (core advantage)
The third-generation modified structure decomposes less during high-temperature injection molding / extrusion processing, and has almost no aldehyde odor, solving the defect of odor generation during processing of the old-generation sorbitol nucleating agent, suitable for food contact and medical-grade products that are sensitive to odor.
3. Enhancement of mechanical and thermal properties
1,3:2,4-Bis(3,4-dimethylobenzylideno) sorbitol CAS 135861-56-2 can increase the crystallization temperature of polypropylene, shorten the injection molding cycle; improve the rigidity, heat deformation temperature of the product, improve dimensional stability, and reduce warpage deformation of the product.
4. Good thermal stability
Melting point 250-280℃, suitable for the regular processing temperature of PP; it is not prone to decomposition at high temperatures, and the risks of scaling, precipitation (spraying frost, plate-out) are much lower than the older generation products.
Sample: Aluminum foil bag; Bulk order: 25KG cardboard barrel, lined with PE bag; Support neutral packaging and customized labels. Keep in a cool, dry place and sealed to avoid dust; Shelf life: 24 months.
Q: What is the minimum order quantity (MOQ)?
A: For a trial run, 1KG is required; for regular bulk orders, 25KG per barrel; for full container orders, 20-22MT.
Q: When is the delivery date?
A: For immediate delivery: 1-3 working days; for production orders: 7-15 working days; shipping dates for ocean freight are calculated separately.
Q: What kind of documents can be provided?
A: COA, SDS/MSDS, packing list, commercial invoice; a certificate of origin can also be provided.
Q: Is food contact compliance possible?
A: It complies with FDA food contact standards and can be used for food packaging PP products; the raw materials themselves cannot directly come into contact with food.
Q: What is the recommended addition amount?
A: In PP, the regular addition range is 0.2-0.4wt%; it can be mixed dry powder, or made into a masterbatch first and then used.
Q: Can it be used for PE and PVC?
A: It is mainly for PP (polypropylene); the effect on PE (polyethylene) is very poor and it is not recommended.
