Aromatic PolyDADMAC Paper Retention Aid from Germany
Polyquaternary ammonium polymer with aromatic groups (>5%) used as retention and drainage aid in paper making to improve fiber and filler retention. HTS 3809.92.10.00 classification for paper finishing with aromatic content.
Duty Rate — Germany → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Charge density and molecular weight specs confirm paper retention function
• Water treatment chemical markings avoided to prevent chapter 38 confusion
• Lab analysis proving aromatic modification prevents polymer classification