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High clarity and excellent optical transparency for premium laminated safety glass performance.
Optimized melt flow and processing stability for consistent extrusion and casting in interlayer film production.
Superior adhesion to glass and polycarbonate substrates without requiring additional primers.
Enhanced toughness and impact resistance, meeting stringent automotive and architectural safety standards.
Low moisture absorption and excellent long-term weatherability under UV exposure and thermal cycling.
Laminated automotive windshields and side windows requiring high optical quality and structural integrity.
Architectural safety glazing for facades, skylights, and overhead installations.
Security glazing systems including blast-resistant and forced-entry resistant laminates.
Photovoltaic module encapsulation layers for improved durability and delamination resistance.
Acoustic laminated glass for noise reduction in transportation and building applications.
| Chemical Type | Polyvinyl butyral (PVB) copolymer |
| Product Form | Free-flowing white granules |
| Appearance | Off-white to light yellow granular solid |
| Primary Applications | Safety interlayer film for laminated glass |
| Key Features | High melt strength, low haze, excellent interfacial adhesion |
| Benefits | Enables high-speed film casting, reduces edge defects, improves yield |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
| Compliance | Meets ISO 12217-1, EN 14449, and FMVSS 208 requirements |
Q1: What is the primary functional role of Kuraray PVB B30HH in adhesive and coating formulations?
A: Kuraray PVB B30HH serves primarily as a high-performance binder and adhesion promoter, enhancing cohesive strength, substrate wetting, and interfacial bonding—particularly on polar surfaces such as glass, metals, and treated plastics.
Q2: How does B30HH differ from standard PVB resins in terms of solubility and processing?
A: B30HH is specifically engineered for improved solubility in common organic solvent blends (e.g., alcohols, esters, ketones), enabling faster dissolution and more stable solutions at ambient temperatures—reducing mixing time and energy input during production.
Q3: Is Kuraray PVB B30HH suitable for use in safety glass interlayers?
A: No—B30HH is not designed or certified for laminated safety glass interlayers. It is formulated for industrial adhesives, protective coatings, and ink binders where enhanced toughness and clarity are required, but it does not meet the stringent optical, mechanical, and regulatory requirements of architectural or automotive safety glazing interlayers.
Q4: What types of crosslinking or curing mechanisms is B30HH compatible with?
A: B30HH is typically used in thermoplastic systems and does not require external crosslinking. However, it can be co-formulated with melamine formaldehyde or blocked isocyanate hardeners to achieve thermoset-like performance when elevated heat resistance or chemical durability is needed.
Q5: How should B30HH be handled and stored to maintain optimal performance?
A: Store in original sealed containers in a cool, dry place away from direct sunlight and moisture. Avoid prolonged exposure to humid environments, as PVB resins are hygroscopic and may require pre-drying before solvent-based processing if exposed to ambient air for extended periods.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
