Other
Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: > Unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives: > Esters of methacrylic acid: > Other > Other
Duty Rate (from China)
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
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2916.14.20.50
Methyl Methacrylate Monomer
Methyl methacrylate (MMA) is the methyl ester of methacrylic acid, a clear liquid unsaturated acyclic monocarboxylic acid ester used primarily as a monomer in polymerization processes. It falls under HTS 2916.14.20.50 as an 'other' ester of methacrylic acid, distinct from butyl or isobutyl variants specified elsewhere. This chemically defined compound is essential for producing acrylic plastics and resins.
Ethyl Methacrylate
Ethyl methacrylate is an ester of methacrylic acid with an ethyl group, used in coatings, adhesives, and dental materials due to its reactivity. Classified under HTS 2916.14.20.50 as an 'other' methacrylic acid ester not specifically named. Meets Chapter 29 criteria as a separate chemically defined organic compound.
n-Propyl Methacrylate
n-Propyl methacrylate, the normal propyl ester of methacrylic acid, serves as a reactive diluent in radiation-curable inks and UV coatings. It qualifies for HTS 2916.14.20.50 as an unsaturated acyclic monocarboxylic acid ester outside named categories. The compound's double bond enables free-radical polymerization.
Isopropyl Methacrylate
Isopropyl methacrylate is a branched-chain ester of methacrylic acid used in specialty resins and contact lens materials. Falls under 'other' methacrylic esters in HTS 2916.14.20.50 due to its acyclic unsaturated structure. Provides lower viscosity than n-propyl analog for formulation flexibility.
n-Butyl Methacrylate (High Purity Grade)
Ultra-high purity n-butyl methacrylate (>99.9%) used in optical resins and medical device coatings, distinguished from standard grades. Even though butyl esters have specific subheadings, this specialty grade falls under HTS 2916.14.20.50 'other' due to statistical reporting distinctions. Minimal impurities ensure clarity in final polymerized products.
2-Ethylhexyl Methacrylate
2-Ethylhexyl methacrylate, with its branched C8 chain, functions as a flexibility-modifying comonomer in acrylic emulsions for paints. Classified in HTS 2916.14.20.50 as an 'other' methacrylic ester due to complex alkyl structure. Low volatility suits exterior architectural coatings.
Cyclohexyl Methacrylate
Cyclohexyl methacrylate contains a cyclic alcohol moiety esterified with methacrylic acid, used in UV-curable adhesives and stereolithography resins. Despite cyclic substituent, classifies under acyclic acid esters HTS 2916.14.20.50 per Chapter 29 notes prioritizing acid classification. High Tg polymers result from its rigid ring structure.
Tetrahydrofurfuryl Methacrylate
Tetrahydrofurfuryl methacrylate (THFMA) features a heterocyclic ether ring from renewable furfuryl alcohol, used in bio-based dental composites and adhesives. HTS 2916.14.20.50 covers this 'other' methacrylic ester as the acid remains acyclic unsaturated monocarboxylic. Low odor and high reactivity characterize applications.
Stearyl Methacrylate
Stearyl methacrylate, with C18 alkyl chain, serves as internal plasticizer in non-woven coatings and lubricants. Long chain reduces volatility while maintaining reactivity; HTS 2916.14.20.50 'other' ester designation. Enables soft-touch surface finishes.
Lauryl Methacrylate
Lauryl methacrylate (C12-C14) provides comb polymer structure in dispersants for concrete admixtures and oil additives. Intermediate chain length balances solubility; HTS 2916.14.20.50 classification as unsaturated acyclic ester. Enables steric stabilization in aqueous systems.
Glycidyl Methacrylate
Glycidyl methacrylate (GMA) contains epoxide functionality for crosslinking in powder coatings and reactive diluents. Dual functionality enables advanced polymer architectures; HTS 2916.14.20.50 as acrylic ester per classification notes excluding only specific ring structures. Epoxide ring opens under acidic conditions.
2-Hydroxyethyl Methacrylate
2-Hydroxyethyl methacrylate (HEMA) is crucial for hydrophilic contact lenses, dental composites, and hydrogel coatings. Hydroxyl group enables hydrogen bonding and water solubility; HTS 2916.14.20.50 'other' ester. FDA medical device monomer status.
2-(2-Ethoxyethoxy)ethyl Methacrylate
2-(2-Ethoxyethoxy)ethyl methacrylate offers high flexibility and low Tg in soft-touch coatings and plasticizers. Polyether chain enhances compatibility; HTS 2916.14.20.50 classification. Wetting properties suit difficult substrates.
Poly(ethylene glycol) Methyl Ether Methacrylate (PEGMA Mn 360)
PEGMA (Mn 360) provides protein-resistant surfaces in biomedical coatings and drug delivery systems. Oligoethylene glycol chains confer stealth properties; HTS 2916.14.20.50 as chemically defined ester despite polymer-like chain length. Precise molecular weight control essential.
Trimethylolpropane Trimethacrylate
Trimethylolpropane trimethacrylate (TMPTMA) is trifunctional crosslinking agent for high-strength composites and 3D printing resins. Three methacrylate groups enable dense network formation; HTS 2916.14.20.50 statistical category for multifunctional esters. High shrinkage during cure characteristic.