Anhui Liwei Chemical Co., Limited
Products

Ethylidenebisphenol


    • Product Name Ethylidenebisphenol
    • Alias Bisphenol E
    • Einecs 215-276-6
    • Mininmum Order 1 g
    • Factory Site Lingwu, Yinchuan, Ningxia, China
    • Price Inquiry sales2@liwei-chem.com
    • Manufacturer Anhui Liwei Chemical Co., Limited
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    598510

    Iupac Name 4,4'-(Ethane-1,1-diyl)diphenol
    Common Name Ethylidenebisphenol
    Molecular Formula C14H14O2
    Molar Mass 214.26 g/mol
    Cas Number 77-09-8
    Appearance White crystalline solid
    Melting Point 161-163 °C
    Solubility In Water Very low
    Density 1.17 g/cm³
    Refractive Index 1.618
    Smiles CC(C1=CC=C(O)C=C1)C2=CC=C(O)C=C2

    As an accredited Ethylidenebisphenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Ethylidenebisphenol is supplied in a 500g sealed amber glass bottle with a tamper-evident cap and detailed hazard labeling.
    Shipping Ethylidenebisphenol should be shipped in tightly sealed containers, protected from moisture and sources of ignition. It must be labeled in accordance with chemical safety regulations. Store and transport in a cool, dry, well-ventilated area. Handle with appropriate PPE and comply with all local, national, and international shipping guidelines.
    Storage **Ethylidenebisphenol** should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from incompatible substances such as strong oxidizers and acids. Protect it from moisture, heat, and direct sunlight. Ensure proper labeling and keep it out of reach of unauthorized personnel. Follow all relevant safety and regulatory guidelines for chemical storage.
    Free Quote

    Competitive Ethylidenebisphenol prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615380400285

    Email: sales2@liwei-chem.com

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    Certification & Compliance
    More Introduction

    Ethylidenebisphenol: A Reliable Component for Modern Polymer Production

    Understanding Ethylidenebisphenol in the Lab and on the Shop Floor

    Many polymer manufacturers look for building blocks that offer dependable reactivity and clarity in their role. Over the past decade, our chemists and engineers have worked closely with this compound, known as Ethylidenebisphenol, to answer the needs of industries requiring tough, temperature-resistant plastics. Among phenolic compounds, Ethylidenebisphenol often stands out for its consistent performance as a monomer and intermediate. Behind every successful batch lies attention to feedstock purity, reaction conditions, and careful handling, learned from countless production runs.

    A Look at Production and Specifications

    Our facility produces Ethylidenebisphenol under a controlled environment, employing a synthesis route that prioritizes high selectivity while minimizing side reactions. Years of process tuning provide us with reproducible lot-to-lot consistency, which simplifies downstream manufacturing. The product typically emerges as pale crystals, with a distinct melting point range and low volatility under ambient conditions. Moisture content and impurity profiles receive scrutiny at multiple stages, as even trace contamination in this class of chemicals can affect polymer color and mechanical properties. Each batch flows directly from our reactors to sealed containers, avoiding unnecessary transfers that would otherwise expose the compound to environmental variables.

    Performance in Resin Systems

    Demand for polymers that deliver high glass transition temperatures led our R&D team to invest in Ethylidenebisphenol, which forms the backbone of several specialty epoxy and polycarbonate resins. Unlike its more common cousins, such as Bisphenol A, this diol introduces a subtle difference in the backbone flexibility and crosslink density. This shift translates into finished products with higher thermal resistance, improved dimensional stability, and enhanced solvent resistance. Sheet and film manufacturers often notice fewer instances of warping or surface blemishes, which saves time on reprocessing. In the coatings sector, formulating with this molecule can push performance metrics that matter in automotive and electrical insulation applications.

    Operational Handling and Safety Reflections

    Anyone handling large-scale chemical manufacturing knows that performance begins with proper logistics and storage. We invest in dry, temperature-controlled areas for Ethylidenebisphenol, since its hygroscopic nature requires care during transfer. In our experience, exposure to moisture—even during brief container openings—can alter the molecular profile and reduce the downstream polymer quality. Workers performing manual operations rely on gloves and dust control, with routine air quality monitoring in the blending area. Years back, when less stringent controls prevailed, we documented several cases of dust accumulation impacting both lab results and worker comfort. Now, with process automation and closed charging systems, plant floors remain clean and output levels rarely dip due to contamination.

    Product Variants and Application Feedback

    We offer Ethylidenebisphenol in a variety of grades, each fine-tuned for specific end uses. High-purity forms meet electronics industry demands for die-attach adhesives and conformal coatings. Slightly less pure variants serve well in compounding lines, where resin blending can tolerate broader impurity bands. Production runs have highlighted that too narrow a purity window can raise costs without noticeable benefit for some general-purpose uses, so we match quality levels to the industry's real needs. Feedback from regular customers suggests they appreciate practical value; they see more batch-to-batch reproducibility and less machine fouling when using our tailored grades versus a generic import.

    Comparing Ethylidenebisphenol to Common Alternatives

    Years of polymer scale-up trials reveal that Ethylidenebisphenol provides a different balance compared to compounds like Bisphenol A or Bisphenol F. Some resin manufacturers come to us after trouble with yellowing or brittleness in high-heat applications using traditional monomers. In those cases, switching to an Ethylidenebisphenol-based formula often brings better color retention and less loss of impact strength at elevated cure temperatures. Its higher molecular weight and rigid bridging group cut down on unwanted chain movement post-cure, which leads to improved mechanical consistency. The manufacturing process also produces less volatile byproduct than with other bisphenols, thanks to the controlled reaction path we employ, which means our end-users see lower VOC emissions and cleaner distillation cuts.

    On the lab scale, researchers observe that crosslinked networks built from Ethylidenebisphenol outperform some common epoxies when measured for dielectric breakdown and heat distortion. These improvements come at a modest increase in formula cost, which many specialty users accept for the performance gains. Back on the process line, operators report smoother mixing and fewer feeding stoppages, especially during compounded resin production. The solid form resists caking and remains free-flowing, a feature that arose from our focus on optimized drying and particle control at the finishing stage.

    Applications Shaped by Manufacturer Experience

    In practical use, Ethylidenebisphenol sees action in applications where thermal cycling or aggressive solvents stress traditional polymers. Printed circuit board laminates built with this foundation resist delamination after repeated soldering or harsh flux washes. Cable insulation compounds likewise benefit from its stability during both extrusion and service. Automotive engineers searching for light-weight interior trims have adopted resins based on this chemistry because they survive the cabin’s heat and intermittent UV exposure, without the chalking or microcracking seen in legacy plastics. In powder coating lines, our customers note that blends containing this compound produce surfaces with even gloss and reliable color, giving designers more freedom in part geometry and finish selection.

    We also see increasing orders from advanced composites specialists aiming to push limits in aerospace interiors and structural panels. Test laminates subjected to sustained loading show less creep and preserve mechanical integrity longer, which appeals to engineers chasing stricter weight and thickness targets. Our close relationships with end users help us anticipate new formulations, and our R&D group regularly supports trials by supplying custom-milled lots or adjusting drying protocols for unique production needs. Chemical resistance also plays a central role: pipes and tanks exposed to harsh cleaning cycles retain gloss and strength, cutting maintenance and downtime.

    Challenges Tackled Through Direct Manufacturing Know-How

    We know from long experience that sourcing and processing phenolic raw materials can present hurdles. Markets fluctuate seasonally and supply chains face interruptions—something we’ve weathered by building redundancy into our own procurement. Reactive intermediates must flow efficiently from supplier to reactor; interruptions drive up costs and threaten delivery timelines. Cross-functional teams meet weekly in our plant to review supply and demand, and our in-house lab screens incoming lots rigorously before approving them for processing. Investment in analytical chromatography pays off: our material rarely strays outside agreed limits, so customers see the long-run consistency they expect.

    Environmental obligations matter, too. We designed our current facility so any process streams containing organic residues feed directly to a recovery system, capturing both spent solvents and rejected product. By recycling these, we bring down waste and cut raw material losses. Over the past five years, this approach translated into both lower operating costs and a better standing with local environmental agencies. We maintain detailed records and share them openly with auditors, supporting good community relations and clearer regulatory inspections.

    Learning from Industry Needs and Field Data

    Every shipment we send out reflects lessons learned from our network of resin formulators, molders, and lab researchers. Pack sizes range from small drums suitable for pilot trials to bulk shipments for continuous plants. Our technical support team tracks downstream performance, logging feedback on solubility, ease of mixing, and end-use behavior over multiyear intervals. This feedback loop lets us refine both our production and our product, based on what actually delivers value on the shop floor—not just theory or lab experiment.

    During the early years, we saw occasional mismatches between what academics described and what our industrial clients experienced. To bridge that gap, we held field visits, joining customers during plant commissioning and scale-up cycles. This made it clear where Ethylidenebisphenol’s unique traits offer real-world savings versus hypothetical ones. These collaborations led us to adjust crystal size, revise drying cycles, and sometimes tweak impurity targets so that mixers never jammed and molders didn’t have to fight with pigment dispersion. Over time, those changes shaped our current process, giving our product a track record unavailable from resellers sourcing third-party material without control over the upstream chain.

    Tackling Quality Issues through Direct Oversight

    We operate with the understanding that quality starts before the first kilogram moves into the reactor. All our process steps—from catalyst charging to product isolation—run with full traceability, letting us spot trends before they turn into full-blown issues. Our engineers and shift supervisors conduct root-cause reviews following any deviation, involving both production and QC personnel. This level of oversight, achieved by direct manufacturer involvement, avoids the piecemeal trouble-shooting often seen in operations that split responsibility between factories and brokers.

    One problem that used to crop up was off-odors from minor byproducts, especially during hot-weather runs. By studying reaction kinetics and oxygen ingress under local climate conditions, we tweaked both airflow and agitation rates, reducing formation of these side species. Downstream, fine-tuning filtration and drying produced cleaner, odorless product. This approach set a benchmark in our facility and was soon adopted at other plants under our group’s umbrella.

    Future Developments and Industry Directions

    Our team continues to look ahead, monitoring regulatory trends and evolving industry preferences. Phasing down endocrine-disrupting monomers led many resin formulators to explore alternatives. Interest in Ethylidenebisphenol surged as downstream users sought higher-performing, lower-risk solutions. Certification and registration under evolving safety standards now require deep documentation not just on chemical identity, but also on production routes, impurity signatures, and even supply chain transparency. Our in-house systems collect and store all relevant data, letting compliance teams easily respond to new requests from both regulators and major customers. These advantages trace directly to our strategy of controlling every link in the manufacture—from raw feedstocks to packed final product.

    Industry collaborations round out our knowledge base. We participate in trade consortia, where consortium partners share test data and discuss improvements to handling, shipping, and waste reduction. Over time, this sharing has prompted us to invest in better packaging and streamlined label management, reducing setup time for our users and minimizing local storage hazards. Customer suggestions spurred us to implement barcoding on container batches, easing inventory reconciliation and lowering the risk of mix-ups during high-volume operations.

    Supporting Stronger End Products, Backed by Direct Manufacturing Know-How

    Ethylidenebisphenol plays a vital role in modern resins, adhesives, and engineered plastics. As the original manufacturer, we see the daily challenges and opportunities presented by changing market demands, rising performance standards, and stricter environmental regulations. Our involvement runs from sourcing and reaction engineering through to technical support and new application development. Seeing both the numbers on a computer screen and the real-life production settings where our product lands gives us a unique understanding of what makes a chemical dependable, sustainable, and fit for advanced industry requirements.

    Users seeking long-term reliability in polymer production turn to us for hands-on manufacturing insight and commitment to product development. By keeping processes transparent, investing in infrastructure, responding to issues with practical problem-solving, and learning directly from field use, we aim to set a higher bar for chemical manufacturing practice. Ethylidenebisphenol might look like just another white crystalline powder, but in the hands of experienced manufacturers partnering closely with their users, it becomes a driver of technical and commercial success across diverse industries.