EPOCROS™ WS-300 by Nippon Shokubai is a VOC-free adhesion promoter and waterborne crosslinking agent based on acrylic, high oxazoline functionalized reactive copolymer. The new crosslinking technology enhances the reactivity between oxazoline groups and carboxy groups through a heating and mixing process involving EPOCROS™ WS and a carboxy group-containing emulsion with a specific neutralization rate.
- It offers lower curing temperature, excellent storage stability, no peeling and long pot life for one packaging.
- It provides film properties, low toxicity, fast drying and improved water- & heat resistance.
- It shows excellent adhesion to polyethylene terephthalate (PET), oriented polypropylene (OPP) and polyvinyl chloride (PVC).
- It exhibits controllable appearance by glass transition temperature adjustment and crosslinking reaction at low temperature (80-120°C) with no by-product.
- It offers high reactivity and performance expression with even small addition.
- EPOCROS™ WS-300 is designed for coatings (metals, films, paper, plastics, leather), primer (film, plastics, building materials, automobiles, PVB inks), paints, inks and pigment printing.
- It is registered with CSCA(Japan) and TSCA(USA) regulations.
Product Type:
| Chemical Composition: | Acrylic-based oxazoline functional copolymer |
| Color | Clear |
| Appearance | Liquid |
Documents related to EPOCROS™ WS-300
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Compliance
| Certifications & Compliance | CSCA(Japan) TSCA (USA) |
Applications
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Availability
Product Status:COMMERCIAL
EPOCROS™ WS-300 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Amine Hydrogen Equivalent Weight (AHEW) | 130 g/eq | Weight per oxazoline equivalent. non-volatiles. theoretical | |
| Glass Transition Temperature (Tg) | 90 °C | ||
| Molecular Weight, Mw | 12x104 g/mol | Weight Average Mw. HPLC | |
| Molecular Weight, Mw | 4x104 g/mol | Number Average Mn. HPLC | |
| Oxazoline Content | 7.7 mmol/g | Non-volatiles. theoretical | |
| Solid Content | 10 % | By Weight | |
| pH | 7 - 10 | ||