H
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Optical Brighteners For Plastic, Resin

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9

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V

2
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荧光增白剂KCB新 — O

O

cof — O

荧光增白剂DT新 — F

荧光增白剂EBF新 — O

荧光增白剂OB新 — O

Intermediate

M

O
O
F
O
O
O
O
P
P
O
2
O

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B

T

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D

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9

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F
O
C
B
F
H
O
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F
O
B

3
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