(3:1), caprolactam-blocked (CAS No. 936346–53–1) (provided for in subheading 3909.50.50) Free No change No change On or before 12/31/2020 . 1025. Self-cross linking, stoving polyurethane resin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.41 1,3 Benzenedicarboxylic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid, 1,6-hexanediol, 1,3-isobenzofurandione and 1,1′-methylenebis[4-isocyanatobenzene], di-ethyl malonate-blocked (CAS No. 200414–59–1) (provided for in subheading 3909.50.50) Free No change No change On or before 12/31/2020 . 1026. Silane terminated polyurethane prepolymer resin Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.42 Poly[oxy(methyl-1,2-ethanediyl)],α-hydro-ω-hydroxy- and 5- isocyanato-1-(isocyanatomethyl)-1,3,3- trimethylcyclohexane (Isophorone diisocyanate) (CAS No. 1012318–97–6) (provided for in 3909.50.50) Free No change No change On or before 12/31/2020 . 1027. Hydrogenated polymers of norbornene derivatives Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.43 1,4:5,8-Dimethanonaphthalene, 2-ethylidene-1,2,3,4,4a,5,8,8a-octahydro-, polymer with 3a,4,7,7a-tetrahydro-4,7-methano-1H-indene, hydrogenated (CAS No. 881025–72–5), presented in pellet form (provided for in subheading 3911.90.25) 1.1% No change No change On or before 12/31/2020 . 1028. Polyethyleneimine, refrigerated in containers holding not more than 1 liter Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.44 Polyethylenimine (CAS No. 9002–98–6), refrigerated, in containers not holding over 1 L (provided for in subheading 3911.90.25) Free No change No change On or before 12/31/2020 . 1029. Polyethyleneimine, components for manufacturing into medical devices Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: