PVB Divison


Eiffel Tower, France
Photo credit: L. Bargagli/Kuraray

Kuraray's PVB Division with its brand TROSIFOL is a leading global producer of PVB and ionoplast interlayers for laminated safety glass applications in the architectural, automotive and photovoltaic industries.

The evolution of the TROSIFOL and DuPont Glass Laminating Solutions (GLS) merger has resulted in consolidation of the TROSIFOL, SentryGlas® and BUTACITE product brands into a single brand: the new TROSIFOL.

We at TROSIFOL now offer the world's broadest portfolio of innovative glass-laminating solutions, including structural and functional interlayers for safety and security applications, sound insulation and UV protection. For decorative applications, we supply colored interlayers, digitally printable films and other innovative products for interior design projects. Our UltraClear films exhibit the lowest Yellowness Index (YID) in the industry.

TROSIFOL is in the perfect position to be your preferred partner for laminated safety glass applications – serving the ever-changing demands of the global glass industry with seven worldwide production sites and five R&D centers.


Shanghai Tower, China
Photo credit: Kuraray / Youcen


1952 PVB is launched on the market. In 1953 TROSIFOL was registered as a product name in the German "Handelsregister". The present-day market share of TROSIFOL is the outcome of the company's own know-how.
1968 TROSIFOL became the first product to replace the hitherto customary powdered PVB including newly patented PE interleaved film, thus making washing and conditioning the film superfluous.
1983 TROSIFOL was produced in a film width of 3.21 m to match the customary float glass width
1993 Launch of SentryGlas® by DuPont
2000 The first sound-proofing PVB film TROSIFOL Sound Control was developed and launched.
2003 The newly developed PVB automotive film TROSIFOL VG was launched. A new PVB film plant in Bor, Russia, started operation.
2004 Kuraray Group acquired the PVB film business of HT Troplast AG. The first dedicated product line – TROSIFOL Solar - for the encapsulation of solar cells in photovoltaic modules was launched.
2006 Kuraray Europe GmbH merges with Kuraray Specialities Europe GmbH
2007 The 4th series production plant with a film width of 3.21 m went into operation at the Troisdorf plant.
2008 TROSIFOL achieves certification by BS OHSAS 18001:2007. TÜV certification of thin-film modules with TROSIFOL SOLAR in accordance with ICE 61215:2005.
2009 Kuraray PVB Division established
2012/2013 Invest of EUR 20 million at the Troisdorf location in a 5th production line especially for the automotive sector.
2014 Acquired glass laminating solutions/ vinyls business (SentryGlas®) of E. I. du Pont de Nemours and Company (“DuPont”)

Scope of Operations

  • Germany, Russia, Czech Republic, Korea, USA

Core Products

Main Brands
  • trosifol(TM) world of interlayers
  • mowital(TM) world of PVB resin
Web site


SentryGlas® is a registered trademark of E.I. du Pont de Nemours and Company or its affiliates for its brand of interlayers. It is used under exclusive license by Kuraray and its sub-licensees. BUTACITE polyvinyl butyral (PVB) thermoplastic film is sold in North & South America and the Asia Pacific region. In EMEA, Kuraray only sells TROSIFOL PVB interlayers.