DEQ-CFW_00088588

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Process Chemistry
Poly ( Vinyl Alcohol) Butyraldehyde
"PVA" "BA"
—(CH2—CH—CH2 CH),+ XC3H7CHO —>
I I Acid
OH 'OH
Poly ( Vinyl Butyral )
"PVB"
—(CH 2 — CH — CH 2 CH)X +XH 20
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CH
C3H7
Tetraethylene Glycol Di•heptanoate
"4G7"
PVB + C 7H 15— CO — O —C 2H4 O —C 2H4 O —C 2H4 O —C 2H4 0 — CO —C 7H 15 —> BUTACITE®
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KJH Environmental Services DuPont Fayetteville Works Butacit ® Tinting
Charlotte, North Carolina I Fayetteville, North Carolina I BEP-D
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DEQ-CFW 00088593