Non-discoloring
Suited to white and light-colored rubber goods and adhesives.
SUNNOX® BBMC
Antioxidant BBMC Supplier
SUNNOX® BBMC is a non-discoloring bisphenol antioxidant for rubber, adhesives and polyolefins. Its high melting point and good heat stability suit light-colored goods and hot-melt adhesives.
CAS 85-60-9 · Bisphenol · Primary antioxidant
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
BBMC (4,4'-butylidenebis(6-tert-butyl-m-cresol)) is a high-melting bisphenol antioxidant used in natural and synthetic rubber, hot-melt and pressure-sensitive adhesives, and polyolefins. It is non-discoloring and gives good long-term heat protection.
High melting point
Good stability in hot processing.
Broad use
Rubber, adhesives and polyolefins.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product Name | Antioxidant BBMC |
| Brand | SUNNOX® BBMC |
| CAS No. | 85-60-9 |
| Chemical Name | 4,4'-Butylidenebis(6-tert-butyl-m-cresol) |
| Molecular Formula | C26H38O2 |
| Molecular Weight | 382.6 |
| Appearance | White powder |
| Melting Point | ≥209 °C |
| Volatile Matter | ≤0.5% |
| Ash | ≤0.1% |
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
Applications by Polymer
Pick an application to see how BBMC is normally used and what to confirm before your trial.
Natural & Synthetic Rubber
Non-discoloring antioxidant for light-colored rubber goods.
Check before trial
- Rubber type
- Cure system
- Heat-aging requirement
Hot-melt & Pressure-sensitive Adhesives
Protects adhesives in the melt tank and in service.
Check before trial
- Base polymer and tackifier
- Melt-tank temperature
- Color stability target
Polyolefins
Antioxidant for PE and PP where a bisphenol is preferred.
Check before trial
- Resin grade and process (film, fiber, molding, pipe)
- Processing temperature and number of passes
- Current antioxidant package and dosage
Selection & comparison
Selecting an Antioxidant System
| Your requirement | What usually works |
|---|---|
| Color and melt-flow stability during extrusion or molding | Phosphite secondary antioxidant (168) with a phenolic primary |
| Long-term heat aging in service | High-MW phenolic primary (1010), often with a thioester (DLTDP / DSTDP) |
| Thin film, fiber, low-melting compounding | Lower-melting phenolic (1076) for easy dispersion |
| Repeated processing / recycled content | Raise the phosphite share in the blend and check yellowing after each pass |
| Humid storage or long transit | Hydrolysis-resistant phosphite such as 168; keep bags sealed |
| Food-contact articles | Ask for the grade-specific food-contact statement before trials |
| Replacing an existing grade | Send your current TDS or COA; we match on the parameters you approve |
Antioxidant Comparison
Swipe or scroll horizontally to see all columns →
| Product | Type | Mol. weight | Melting point | Main job | Typical starting level* |
|---|---|---|---|---|---|
| SUNNOX® BBMC | Bisphenol · primary | 382.6 | ≥209 °C | Non-discoloring rubber and adhesive antioxidant | 0.2–1.0% |
| SUNNOX® 2246 | Bisphenol · primary | 340.5 | ≥125 °C | Non-staining rubber and plastic antioxidant | 0.5–1.5 phr in rubber |
| SUNNOX® 425 | Bisphenol · primary | 368.6 | ≥119 °C | Non-staining rubber and latex antioxidant | 0.5–1.5 phr in rubber |
| SUNNOX® 1010 | Hindered phenol · primary | 1177.6 | 110–125 °C | Long-term thermal protection | 0.05–0.3% |
| SUNNOX® 1076 | Hindered phenol · primary | 530.9 | 50–55 °C | Long-term protection, easy dispersion | 0.05–0.3% |
*Starting points for trials, not fixed recommendations. The right level depends on resin, catalyst residue, processing temperature and service life. Primary and secondary antioxidants do different jobs and are not interchangeable.
Packaging & storage
Packaging
25 kg net bags or cartons with a PE inner liner. Palletized; private-label packing on request.
Storage
Keep sealed in a cool, dry, ventilated place away from heat and direct sun. See the SDS for full handling details.
Lead time & terms
Typically 3–15 business days from order confirmation, depending on quantity. FOB, CIF or DAP to major ports.
From first email to approved supply
Name the failure you want to prevent
Yellowing or melt-flow change during processing points to the phosphite share; embrittlement or cracking after months in service points to the phenolic and thioester share. Note recycled content and the number of extrusion passes.
Start from a proven blend
Most polyolefin packages start from a phenolic primary plus a phosphite secondary, then adjust. Send your current package and we suggest a starting blend for the trial instead of changing several variables at once.
Compare the numbers that matter
For powders: assay, melting range, volatiles and light transmittance at 425/500 nm (a direct read on color). Ask for the same parameters on our COA that appear on your incoming-inspection sheet.
Lock in supply terms
Agree packaging, monthly volume, destination port and required documents up front. A matching CAS number alone does not qualify a new source; run your trial and keep the approved lot COA as the reference.
Tell us your requirement. We match the grade.
Start with your polymer, quantity and destination. Add your current grade or specification and we will quote against it.
| Information | Example |
|---|---|
| Polymer / Material | PP, PE, ABS, compound, masterbatch |
| Application | Injection molding, extrusion, film, fiber |
| Current additive | Grade or supplier you use today |
| Required specification | Your TDS, COA or key limits |
| Quantity | Trial order / monthly / annual volume |
| Packaging | Standard 25 kg or specific requirement |
| Destination | Country and port |
| Documents needed | COA, SDS, REACH, food-contact statement |
Related products
SUNNOX® 1010
High-MW hindered phenolic primary antioxidant for long-term thermal protection with low volatility.
View product →SUNNOX® 1076
Low-melting hindered phenolic primary antioxidant, easy to disperse in film and compounding.
View product →Antioxidant BBMC FAQ
Is BBMC staining?
No, it is a non-discoloring antioxidant suited to light-colored products.
What dosage is typical?
About 0.2–1.0% depending on application. Confirm in your test.
BBMC or 2246?
BBMC has a higher melting point and is often chosen for hot-melt adhesives; 2246 is common in rubber and latex.
Can I get a sample before ordering?
Yes. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.
What if a COA does not match our agreed specification?
Send us the agreed specification and the COA showing the difference (parameter, unit and test method). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.
