| 3909 |  | Amino-resins, phenolic resins and polyurethanes, in primary forms: |  |  |  |  | 
| 3909.50 |  | Polyurethanes: |  |  |  |  | 
| 3911 |  | Petroleum resins, coumarone-indene resins, polyterpenes, polysulfides, polysulfones and other products specified in note 3 to this chapter, not elsewhere specified or included, in primary forms: |  |  |  |  | 
| 3911.10.00 | 00 | Petroleum resins, coumarone, indene or coumarone-indene resins; polyterpenes | kg | 6.1% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 15.4¢/kg +  49% | 
| 3911.90.15 | 00 | Poly(nitrilomethanetetraarylnitrilo- [2,4,6-tris-(1-methyethyl)-1,3- phenylene]]-2,6-bis(1-methylethyl)- phenyl]- -[[[2,6-bis(1-methylethyl)- phenyl]amino]methylene]amino carbodiimide or 2,4-diisocyanate-1,3,5-tris(1-methyl- ethyl) homopolymer with polyethylene | kg | Free |  | 15.4¢/kg +  49% | 
| 3911.90.35 | 00 | 1,1'-Bis(methylenedi-4,1-phenylene)- 1H-pyrrole-2,5-dione, copolymer with 4,4'-methylenebis(benzeneamine); and Hydrocarbon novolac cyanate ester | kg | Free |  | 15.4¢/kg +  45% | 
| 3912.90.00 | 10 | alpha-Cellulose in granular, microcrystalline or powdered forms | kg |  |  |  | 
| 3913 |  | Natural polymers (for example, alginic acid) and modified natural polymers (for example, hardened proteins, chemical derivatives of natural rubber), not elsewhere specified or included, in primary forms: |  |  |  |  | 
| 3913.90.20 | 00 | Polysaccharides and their derivatives | kg | 5.8% | Free (A*,AU,BH, CA,CL,E,IL,J,JO, K,MA,MX, P,SG) | 50% | 
| 3914.00 |  | Ion-exchangers based on polymers of headings 3901 to 3913, in primary forms: |  |  |  |  | 
| 3914.00.20 | 00 | Cross-linked polyvinylbenzyltrimethylammonium chloride (Cholestyramine resin USP) | kg | Free |  | 35% | 
| 3915.10.00 | 00 | Of polymers of ethylene | kg | Free |  | 10% | 
| 3915.20.00 | 00 | Of polymers of styrene | kg | Free |  | 10% | 
| 3915.30.00 | 00 | Of polymers of vinyl chloride | kg | Free |  | 10% | 
| 3915.90.00 | 10 | Of polyethylene terephthalate (PET) plastics | kg |  |  |  | 
| 3916.10.00 | 00 | Of polymers of ethylene | kg | 5.8% | Free (A,AU,BH,B, CA,CL,E,IL,J, JO,MA,MX, P,SG) | 35% | 
| 3916.20.00 |  | Of polymers of vinyl chloride |  | 5.8% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 35% | 
| 3916.90.10 | 00 | Of acrylic polymers | kg | 6.5% | Free (A,AU,BH, CA,CL,E,IL,J,JO, MA,MX, P,SG) | 40.6% | 
| 3917.21.00 | 00 | Of polymers of ethylene | kg | 3.1% | Free (A,AU,BH,B, C,CA,CL,E, IL,J,JO,MA,MX, P,SG) | 25% | 
| 3917.22.00 | 00 | Of polymers of propylene | kg | 3.1% | Free (A,AU,BH,B, C,CA,CL,E, IL,J,JO,MA,MX, P,SG) | 25% | 
| 3917.23.00 | 00 | Of polymers of vinyl chloride | kg | 3.1% | Free (A,AU,BH,B, C,CA,CL,E, IL,J,JO,MA,MX, P,SG) | 25% | 
| 3917.32.00 | 10 | Of polyvinyl chloride | kg |  |  |  | 
| 3917.32.00 | 20 | Of polyethylene | kg |  |  |  | 
| 3917.39.00 | 20 | Of polyvinyl chloride | kg |  |  |  | 
| 3918.10 |  | Of polymers of vinyl chloride: |  |  |  |  |