Phthalic Anhydride Polyester polyol

This series of polyols are mainly aromatic polyester polyols prepared by polycondensation or modification of phthalic anhydride, diethylene glycol and other raw materials. They are mainly used in the field of hard foam and adhesives. They have the advantages of low odor, low color, high reaction activity, excellent hydrolysis stability, high aromatic content, good stability and fluidity of composite materials, And the product structure can be adjusted according to customer requirements. This series of polyester polyols can be widely used in refrigerator, cold storage, spraying, solar energy, thermal pipelines, building insulation and other areas of hard foam composition, some of the adhesive products.

series

Items

Hydroxyl value

(mgKOH/g)

Acid value (mgKOH/g)

Water content

 (%)

Room temperature viscosity

(25℃,cps)

Series of phthalic anhydride and other aromatic dibasic acids

PE-B175

170-180

≤1.0

≤0.05

9000-13000

PE-B503

300-330

≤1.0

≤0.05

2000-4000

PE-D504

400-450

≤2.0

≤0.1

2000-4000

PE-D505

400-460

≤2.0

≤0.1

2000-4000


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