Description

Poly(Ethylene-Co-Methacrylic Acid), Zinc Salt is an ionomer, a specialized copolymer where zinc ions crosslink the polymer chains. This material is valued for its unique combination of toughness, clarity, and adhesion properties, along with excellent resistance to stress cracking. It is a critical performance additive and base polymer for demanding applications in the packaging, automotive, and specialty compounding industries, where superior mechanical and barrier performance is required.

Application

• Coextrusion Tie Layers: Acts as a high-performance adhesive layer between dissimilar polymers (e.g., polyolefins and EVOH or nylon) in multilayer flexible and rigid packaging films.
• Toughening Agent: Used as an impact modifier and compatibilizer in polymer blends and compounds to enhance durability and elongation.
• Specialty Hot-Melt Adhesives: Provides excellent adhesion to metals, glass, and treated plastics in high-strength bonding applications.
• Golf Ball Covers: A key material in the manufacture of durable, high-performance golf ball covers due to its cut resistance and resilience.
• Automotive Components: Used in interior trim, seals, and under-hood parts requiring chemical resistance and weatherability.
• Wire & Cable Jacketing: Imparts excellent abrasion resistance and serves as a halogen-free flame-retardant component.
• Cap Liners and Seals: Provides consistent sealing performance and chemical resistance for food, beverage, and pharmaceutical packaging.

Basic Information

Product Name	Poly(Ethylene-Co-Methacrylic Acid), Zinc Salt
CAS No.	28516-43-0
Molecular Formula	(C5H8O2·C2H4)x·xZn
Molecular Weight	Varies (Polymer)
Synonyms	Ethylene/Methacrylic Acid Copolymer Zinc Salt; Zinc Ionomer; Ionomer Resin (Zn); Poly(ethylene-co-methacrylic acid) zinc ionomer; E/MAA-Zn; Zinc-neutralized ethylene-methacrylic acid copolymer; Surlyn® (Zn type); AClyn® (Zn type)
EINECS	Contact for details

Quality Control

Our ionomer products are manufactured under strict quality management systems. Each batch is tested to ensure consistent performance in melt index, acid neutralization level, and mechanical properties. Certificates of Analysis (COA) detailing lot-specific data are provided with every shipment. We can support compliance with relevant regulations for target applications, including food contact and automotive material standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and excessive heat sources to prevent degradation of polymer properties. The material is hygroscopic (moisture-sensitive); keep original packaging sealed until use.

Specification

Item	Specification
Appearance	Clear to translucent pellets or granules
Melt Flow Rate (190°C/2.16 kg)	1.0 - 30.0 g/10 min (Grade dependent)
Methacrylic Acid Content	5 - 20 wt% (Grade dependent)
Neutralization Level (Zinc)	30 - 80% (Grade dependent)
Melting Point (DSC)	85 - 100 °C
Tensile Strength at Yield	15 - 25 MPa
Elongation at Break	300 - 500%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.