; 1,4-benzenedicarboxylic acid)-alt-(1,6-hexanediamine; 4,4′-methylenebis [cyclohexanamine]; 4,4′-methylenebis[2-methylcyclohexanamine])} (CAS No. 1030611–14–3) (provided for in subheading 3908.90.70) Free No change No change On or before 12/31/2020 . 1017. Grilamid TR 60 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.33 Poly{(azacyclotridecan-2-one)-co-(1,3-benzenedicarboxylic acid; 1,4-benzenedicarboxylic acid)-alt-(4,4'-methylenebis[2-methylcyclohexanamine])} (CAS No. 62694–40–0) (provided for in subheading 3908.90.70) Free No change No change On or before 12/31/2020 . 1018. Methylene dianiline 50 Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.34 Mixtures containing 40 to 60 percent by weight formaldehyde polymers with aniline (CAS No. 25214–70–4) and 60 to 40 percent by weight 4,4'-methylenedianiline (CAS No. 101–77–9) (provided for in subheading 3909.39.00) Free No change No change On or before 12/31/2020 . 1019. Phenol, 4-(1,1-dimethylethyl)-,polymer with formaldehyde Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.35 Poly(phenol-co-formaldehyde-co-4-(1,1-dimethylethyl)phenol) (CAS No. 28453–20–5) (provided for in subheading 3909.40.00) Free No change No change On or before 12/31/2020 . 1020. Phenol, 4,4′-(1-methylethylidine)bis-, polymer Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.11.36 4-tert-Butylphenol; formaldehyde