; 1-isocyanato-4-[(4-isocyanatophenyl)methyl]benzene (CAS No. 58698–66–1) (provided for in subheading 3911.90.90) Free No change No change On or before 12/31/2020 . 1038. Modified ethylene-norbornene copolymer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.54 Poly(ethylene-ran-(2-norbornene)) (CAS No. 26007–43–2), comprising 64 (plus or minus 3) percent by weight ethylene (CAS No. 74–85–1), having a glass transition temperature of 78 (plus or minus 4) °C, and containing not less than 3 percent by weight polyethylene (CAS No. 9002–88–4) (provided for in subheading 3911.90.90) Free No change No change On or before 12/31/2020 . 1039. 1,6-Hexanediamine,N-N′-bis(2,2,6,6-tet Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.55 1,6-Hexanediamine, N,N′-bis(2,2,6,6-tetramethyl-4-piperidinyl)-polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with N-butyl-1-butanamine and N-buty-2,2,6,6-tetramethyl-4-piperidinamine (CAS No. 192268–64–7) (provided for in subheading 3911.90.90) Free No change No change On or before 12/31/2020 . 1040. Amberlite XAD4 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.56 Poly(divinylbenzene-co-ethylstyrene) (CAS No. 9043–77–0) (provided for in subheading 3911.90.90) 2.4% No change No change On or before 12/31/2020 . 1041. Certain industrial nitrocellulose, damped with an alcohol content of 28 to 32 percent Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.57 Industrial grade nitrocellulose, having a nitrogen content of less than 12.4 percent on a dry weight basis, damped with an alcohol content of 28 to 32 percent by weight (CAS No. 9004–70–0), presented in fiber drums each containing 85 kg, 100 kg, 110 kg or 120 kg of such nitrocellulose, the foregoing certified by the importer as made from at least 50 percent cotton linter or wood pulp and as