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Our pharmaceutical-grade EVOH polymer resins provide exceptional oxygen and moisture barriers essential for sterile medical packaging, drug delivery systems, and clinical device protection.
Ethylene-vinyl alcohol (EVOH) copolymer resin has become the benchmark high-barrier polymer for pharmaceutical and medical packaging due to its unmatched combination of gas impermeability, chemical inertness, and multilayer processability.
In the Chinese mainland, TPS has established its R&D center in Chongqing City, dedicated to the research and development of high-tech barrier materials. The center has successfully launched pharmaceutical-grade EVOH resin products widely adopted in medical packaging, drug delivery, and clinical device protection due to their exceptional gas barrier properties and chemical stability.
Our R&D team integrates multi-party technical expertise and is committed to continuously elevating product quality, performance, and biocompatibility to better serve the evolving needs of the global medical packaging industry.
Founded in 1950, TPS Specialty Chemical Limited has always focused on innovation and development in the chemical industry. Headquartered in Argentina, after more than 70 years of development, TPS has grown into one of the leading companies in the global chemical industry, with branches worldwide — especially in Hong Kong, which has laid the foundation for rapid growth in global markets.
Guided by the philosophy of "complete product categories, integrated services, and deep value-chain expertise," TPS focuses on EVOH resin, CPP and PVDC raw materials, specialty equipment, and high-performance plastic additives, delivering reliable and efficient solutions for diverse medical and industrial packaging applications.
As a professional polymer materials supplier and specialty chemicals distributor, TPS ensures consistent product quality, stable supply, and supports customers with application guidance, technical consultation, and customized sourcing solutions.
The global medical packaging industry is undergoing rapid transformation driven by biologics growth, sustainability mandates, and digitalized supply chains. EVOH polymer raw materials are at the center of this evolution.
EVOH polymer raw materials serve as the critical barrier layer across a wide spectrum of medical and pharmaceutical packaging formats, each demanding specific ethylene content grades and processing conditions.
Cold-form aluminum blisters are increasingly being replaced by transparent EVOH-PA multilayer thermoformed blisters. TPS EVOH grades with 32–38 mol% ethylene content offer the optimal balance of barrier performance and thermoformability for solid oral dosage forms, enabling pharmacists and patients to visually inspect tablets and capsules while maintaining moisture vapor transmission rates (MVTR) below 0.1 g/m²/day.
Single-use medical devices — catheters, surgical instruments, wound dressings — require packaging that maintains sterile barrier integrity (SBI) per ISO 11607. EVOH-based coextruded films laminated with Tyvek or medical-grade paper provide the necessary OTR performance while passing seal integrity tests, accelerated aging studies, and distribution simulation protocols required by global regulatory bodies.
Intravenous solution bags and biologic drug containers require outer overwrap films with superior oxygen and moisture barriers to prevent degradation during long-term storage. EVOH multilayer overwrap films from TPS provide the necessary protection while maintaining clarity for visual inspection, and are compatible with gamma sterilization doses up to 50 kGy without yellowing or barrier loss.
In-vitro diagnostic kits, reagent pouches, and lateral flow assay packaging demand ultra-low OTR films to protect moisture-sensitive reagents from humidity-induced degradation. TPS's high-ethylene-content EVOH grades (44 mol%) maintain barrier performance even at 80% RH, making them ideal for tropical market diagnostic packaging where cold-chain reliability cannot be guaranteed.
Looking to the future, TPS Specialty Chemical Limited will continue to expand its global business and actively respond to market challenges with the purpose of "innovation-driven, win-win cooperation." Through close cooperation with partners, TPS will play a more important role in the global chemical industry and create greater value for customers and society.
Get Product Inquiry Contact Our ExpertsFrom pharmaceutical blister films to sterile device pouches, our comprehensive EVOH resin product range covers every medical packaging requirement with precision-engineered barrier performance.