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Polyvinyl Butyral

Product name :Polyvinyl Butyral
CAS NO.:63148-65-2
H.S.Code:39059990
MF:C16H28O5
EINECS No.:613-158-6
Appearance:white powder

Technical Parameters

Adhesive Grade

TIME AND INDEXE-10E-20E-30E-40E-50E-60E-70
AppearanceWhite or slightly yellow power,no visible impurity
Volatile,%,≤3.0
Viscosity,S(-1 viscometer method)≤55~1010~1818~3030~6060~180>180
Hydrogen chloride,%,≤0.05
Polyvingl butyrdsf,%68~85  68~85  70~85
Ash,%,≤0.05

Film Grade

TIME AND INDEXT10
Appearancewhite or slightly yellow powder,NO visible impurity
Oxhydryl,%17~20
Volatile,%,≤2.0
Hydrogen chloride,≤0.01
ET2H %,≤0.05
Viscosity, mPa.S180-280
Transparency,%

≥95(430nm wavelength spectrophotometer)

≥98(660nm wavelength spectrophotometer)

Melt index, g/10min0.80-2.20
Film(transmittance) %,≤89
Film(Haze),%,≤0.30(Grade a)  0.40(Grade b)  0.60(Grade c)
Yellow index,%,≤0.50(Grade a)  0.60(Grade b)  0.80(Grade c)
Desity, g/cm3,≥0.2
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