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Polyvinyl butyral (or PVB) is a resin which a member of the polyvinyl acetal family. Produced through the reaction of polyvinyl alcohol with butyraldehyde. Polyvinyl butyral (PVB) properties including high tensile strength, strong binding, impact resistance, transparency and optical clarity. PVB resins are used in general industrial and wood coatings, wash primers, ceramic substrates, composites and structural adhesives, and gravure or flexographic inks. Aslo it is particularly suitable as an adhesive film interlayer in laminated safety glass in automotive windshields and architectural safety glass.
Application Scope：
This product is widely used in paper base copper clad,thermal transfer ink,cypress paper printingink,glue metal protection primer, badminton,ceramic color paper, aluminum foil adhesive,electronic ceramics, silk screen printing ink, casting and resin grinding wheel, straw hat, fibertreating agent and cellulose sponge, etc.
The production capacity of Wanwei company film grade PVB resin is 10000 tons/year. The production PVB film produced by film grade PVB resin is used for making safety glass interlayer,Materia.lt has excellent transparency, Impact resistance strength,Penetraton resistance, Widely usedin aerospace, Automotive and high-rise building safety glass.
Adhesive Grade PVB Resin
| ITEM AND INDEX | WWW-A-10 | WWW-A-20 | WWW-A-30 | WWW-A-40 | WWW-A-50 | WWW-A-60 | WWW-A-70 |
| Appearance | White or slightly yellow powder, no visible impurity | ||||||
| Volatile % ≤ | 3.0 | ||||||
| Viscosity, S (-1 viscometer method) | ≤5 | 5-10 | 10-18 | 18-30 | 30-60 | 60-180 |
>180 |
| Hydrogen Chloride % ≤ | 0.05 | ||||||
| Polyvinyl butyral % | 68-85 69-85 70-85 | ||||||
| Ash % ≤ | 0.05 | ||||||
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Main Product:
Titanium Dioxide,
PVC Paste Resin,
Polyvinyl Alcohol,
PVC Resin,
Iron Oxide ,
Carbon Black
