Other
Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms. > Other polyesters: > Other
Duty Rate (from China)
Subheadings
Products classified under Tariff item 3907.9
Allyl Diglycol Carbonate Resin Flakes
CR-39 monomer resin (allyl diglycol carbonate) in flake primary form for optical lens casting. This unsaturated allyl polyester resin falls under tariff item 3907.91.00 as an uncompounded allyl resin with over 95% named monomer units.
3907.91.00Allyl Methacrylate Ester Copolymer Resin
Copolymer resin of allyl methacrylate unsaturated polyester in primary liquid form for dental composites. It fits tariff item 3907.91.00 as an allyl resin where allyl units meet the 95% threshold per the chapter notes.
3907.91.00Allyl Phenol Formaldehyde Hybrid Resin
Hybrid unsaturated allyl-modified phenolic polyester resin in primary form for electrical laminates. Tariff item 3907.91.00 applies as an allyl polyester where allyl exceeds other monomers by the note criteria.
3907.91.00Casting Unsaturated Polyester Resin
Low-viscosity unsaturated polyester resin designed for casting cultured marble countertops and decorative solid surfaces. It is in liquid primary form and qualifies as an unsaturated polyester under tariff item 3907.91.00, with the predominant monomer being unsaturated.
3907.91.00Clear Polyester Casting Resin
Crystal-clear unsaturated polyester resin used for embedding objects in paperweights and art sculptures. It is in primary liquid form and classified under tariff item 3907.91.00 as an unsaturated polyester, following monomer predominance rules.
3907.91.00Diallyl Isophthalate Resin Granules
Unsaturated polyester resin based on diallyl isophthalate in granular primary form for high-performance composites. It falls under tariff item 3907.91.00 as an allyl resin due to the allyl ester structure and over 95% qualifying monomer content.
3907.91.00Diallyl Phthalate Resin Pellets
Diallyl phthalate (DAP) resin in primary pellet form, an unsaturated polyester allyl resin used for molding compounds in electrical insulators. It is classified under tariff item 3907.91.00 as an allyl resin meeting the 95% monomer rule.
3907.91.00Divinylbenzene Allyl Copolymer Granules
Cross-linked unsaturated polyester copolymer of divinylbenzene and allyl esters in granule form for ion exchange resins. Tariff item 3907.91.00 applies to such allyl-dominant primary polymers.
3907.91.00Gelcoat Unsaturated Polyester Resin
Thixotropic unsaturated polyester resin formulated as a gelcoat for surface finishes on fiberglass reinforced plastics in marine and RV applications. It is in primary form and classified under tariff item 3907.91.00 as an unsaturated polyester.
3907.91.00High-Reactivity Unsaturated Polyester Resin
Fast-cure unsaturated polyester resin for production line spray and hand lay-up of truck caps and enclosures. It is in primary liquid form and classified under tariff item 3907.91.00 as an unsaturated polyester, per predominant comonomer weight rules.
3907.91.00Iso-NPG Unsaturated Polyester Resin
Neopentyl glycol (NPG) modified isophthalic unsaturated polyester resin for corrosion-resistant panels and tanks. It is in primary form and classified under tariff item 3907.91.00 as an unsaturated polyester, with NPG units predominant but not exceeding 95%.
3907.91.00Marine-Grade Unsaturated Polyester Resin
Iso-polyester resin variant with enhanced water resistance for boat building and underwater composites. It is in primary liquid form and classified under tariff item 3907.91.00 as an unsaturated polyester, based on predominant comonomer weight.
3907.91.00Methallyl Acrylate Allyl Resin Pellets
Thermosetting pellets of methallyl acrylate-allyl copolymer, an unsaturated polyester for encapsulation. It is classified under tariff item 3907.91.00 as an allyl resin per the 95% rule.
3907.91.00Orthophthalic Unsaturated Polyester Resin
Standard orthophthalic (ortho) unsaturated polyester resin for general purpose FRP like shower stalls and truck beds. It is in bulk primary form and classified under tariff item 3907.91.00 as an unsaturated polyester, based on monomer-based classification.
3907.91.00Pentaerythritol Tetraallyl Ether Resin Beads
Unsaturated polyester allyl resin from pentaerythritol tetraallyl ether in bead primary form for UV-curable coatings. Tariff item 3907.91.00 applies as an allyl resin meeting the polymer content rules in the subheading notes.
3907.91.00Pure Uncompounded Triallyl Cyanurate Resin
Pure uncompounded triallyl cyanurate resin in primary form, used as a cross-linking agent for rubbers and composites. This unsaturated polyester resin falls under tariff item 3907.91.00 as it is an uncompounded allyl resin where allyl units constitute 95% or more by weight.
3907.91.00Spray-Up Unsaturated Polyester Resin
Medium-reactivity unsaturated polyester resin optimized for spray-up fabrication of large FRP parts like tubs and pools. It is in primary liquid form and classified under tariff item 3907.91.00 as an unsaturated polyester, per weight-based polymer rules.
3907.91.00Tetraallyloxyethane Polymer Resin
Multi-allyl functional unsaturated polyester from tetraallyloxyethane in primary syrup form for potting compounds. It is classified under tariff item 3907.91.00 as an allyl resin meeting the polymer definition.
3907.91.00Triallyl Cyanurate Resin Powder
Triallyl cyanurate (TAC) thermoset polyester resin in powder form, used as a cross-linking agent in molding compounds. The allyl groups constitute over 95% of the polymer content, classifying it as an unsaturated polyester in primary forms under tariff item 3907.91.00.
3907.91.00Uncompounded Allyl Diglycol Carbonate Resin
Uncompounded allyl diglycol carbonate resin (CR-39) in primary form, the base material for optical lenses and eyewear. This unsaturated polyester resin is classified under tariff item 3907.91.00 as an uncompounded allyl resin with allyl units exceeding 95% by weight.
3907.91.00Uncompounded Allyl Ester Polyester Resin Grade A
Industrial grade A uncompounded allyl ester polyester resin in primary flake form, used for molding electrical components. This unsaturated polyester resin qualifies under tariff item 3907.91.00 as an uncompounded allyl resin with qualifying monomer content.
3907.91.00Uncompounded Allyl Resin Diallyl Phthalate
Diallyl phthalate (DAP) resin in primary, uncompounded form, a thermosetting unsaturated polyester allyl resin used for molding compounds in electrical insulators. It falls under tariff item 3907.91.00 as an uncompounded allyl resin.
3907.91.00Uncompounded Allyl Resin for Electrical Laminates
Specialty uncompounded allyl resin formulated for electrical grade laminates and circuit boards, supplied in primary powder form. This unsaturated polyester resin falls under tariff item 3907.91.00 as an uncompounded allyl polyester resin with over 95% allyl content.
3907.91.00Uncompounded Diallyl Isophthalate Allyl Resin
Diallyl isophthalate (DAIP) resin, an uncompounded allyl polyester in primary granular form, used in high-performance composites for aerospace. Tariff item 3907.91.00 applies as the allyl monomer units exceed 95% by weight.
3907.91.00Unsaturated Polyester Resin for Fiberglass
Liquid unsaturated polyester resin in primary form used as a base for composite materials in boat hulls and automotive parts. It is classified under tariff item 3907.91.00 as an unsaturated polyester, not specifically named elsewhere in the subheading.
3907.91.00Vinyl Ester Pre-Polymer Resin
Methacrylate-capped unsaturated polyester pre-polymer known as vinyl ester for chemical tanks and pipes. It is technically an unsaturated polyester derivative in primary form and classified under tariff item 3907.91.00 as 'other' since it does not meet specific subheading criteria.
3907.99.00Bio-based Polyethylene Furanoate (PEF) Granules
Bio-based polyethylene furanoate (PEF) granules are a sustainable polyester from furandicarboxylic acid and ethylene glycol, used for bottles and films. They are in primary forms and qualify as other polyesters under this tariff item since furanoate units predominate.
3907.99.00Celanex PBT Pellets
Celanex® 1600A polybutylene terephthalate (PBT) pellets, a pure resin used for automotive under-hood components and electrical parts. This product is a polyester in primary form, specifically PBT where the butylene terephthalate monomer units contribute 95% or more by weight, meeting the purity standards of subheading note 1. It is classified under tariff item 3907.99.00 as 'other polyesters' not elsewhere specified.
3907.99.00Copolyester Elastomer (COPE) Granules
Thermoplastic copolyester elastomer (COPE) granules, such as Hytrel, combining hard polyester segments with soft polyether segments, supplied in primary granules. These copolymers are classified under 3907.99.00 as other polyesters, as the polyester blocks predominate by weight over the polyether blocks, per chapter note 4. The product is in primary form and not covered by a more specific subheading.
3907.99.00Copolyester Elastomer (COPE) Pellets
Copolyester elastomer (COPE) pellets, like Hytrel, are thermoplastic elastomers combining polyester hard segments with polyether soft segments for hoses and belts. They are in primary forms and qualify as other polyesters where polyester units predominate over polyether units.
3907.99.00High IV Polyester Staple Fiber Resin
High intrinsic viscosity polyester staple fiber resin is specialized polyester chips for staple fiber production, not textile grade PET. It is in primary forms and qualifies as other polyesters under this tariff item with specialized IV greater than 0.70.
3907.99.00Injection Molding Grade PBT Resin
Injection molding grade PBT resin, optimized for high-speed production of thin-walled parts. This polybutylene terephthalate is in primary form (pellets) and meets the definition of a pure polyester under subheading note 1, with butylene terephthalate units contributing at least 95% by weight. It is classified under 3907.99.00 as 'other polyesters' in primary forms.
3907.99.00Liquid Crystal Polyester (LCP) Resin
High-performance liquid crystal polyester (LCP) resin for electronics connectors, featuring rigid aromatic monomers, in primary injection form. This polyester is classified under 3907.99.00 as other polyesters, as it is not specifically named in other subheadings and meets the definition of a polyester in primary form. The aromatic monomer units form ester linkages, and the product is not a composition with additives exceeding 1% by weight.
3907.99.00Liquid Crystal Polymer (LCP) Granules
Liquid crystal polymer (LCP) granules are high-performance polyesters with rigid rod-like molecules for electronics connectors and automotive parts. They are in primary forms and qualify as other polyesters where hydroxybenzoic acid and similar monomers predominate.
3907.99.00PBT Engineering Thermoplastic Granules
PBT engineering thermoplastic granules for connectors and housings in consumer electronics. These granules are pure polybutylene terephthalate in primary form, with the butylene terephthalate monomer contributing 95% or more by weight, as required by subheading note 1. They are classified under 3907.99.00 as other polyesters in primary forms.
3907.99.00Pocan PBT Granules
Pocan® B 1300 PBT granules for precision engineering parts in appliances. This polybutylene terephthalate is in primary granular form and meets the 95% monomer purity requirement for the 'poly' prefix under subheading note 1. It is classified under 3907.99.00 as other polyesters in primary forms.
3907.99.00Polyadipate Ester Resin Pellets
Polyadipate ester resin pellets, made from adipic acid and diols, used as plasticizers and in polyurethane production, imported as primary pellets. These polyesters are classified under 3907.99.00 as other polyesters, as they are not specifically named in other subheadings and meet the definition of a polyester in primary form. The adipic acid and diol monomers form ester linkages, and the product is not a composition with additives exceeding 1% by weight.
3907.99.00Polyarylate Resin Pellets
Polyarylate resin pellets from bisphenol A and isophthalic/terephthalic acids offer transparency for optical uses. They are in primary forms and qualify as other polyesters not specifically named in other headings.
3907.99.00Polybutylene Terephthalate (PBT) Resin
Polybutylene terephthalate (PBT) resin is a thermoplastic polyester resin in primary pellet form used for engineering plastics in automotive and electronics. It falls under this tariff item as an other polyester where terephthalic acid and butanediol units predominate.
3907.99.00Polybutylene Terephthalate Resin Pellets
Granular PBT resin pellets used as raw material for injection molding in automotive and electronics. These pellets are pure polybutylene terephthalate in primary form, with monomer units contributing 95% or more by weight, satisfying subheading note 1. They are classified under 3907.99.00 as other polyesters in primary forms.
3907.99.00Polycaprolactone (PCL) Thermoplastic Pellets
Polycaprolactone (PCL) thermoplastic pellets, a biodegradable polyester resin for 3D printing and adhesives, in primary pellet form. This polyester is classified under 3907.99.00 as other polyesters, as caprolactone is the predominant repeating unit forming ester linkages. The product is in primary form and meets the definition of a polyester under chapter note 1.
3907.99.00Polycyclohexylenedimethylene Terephthalate (PCT) Resin
Polycyclohexylenedimethylene terephthalate (PCT) resin is a high-temperature polyester for electrical components and fibers, imported as primary pellets. It fits this tariff item since cyclohexanedimethanol and terephthalic monomers predominate but lack a specific subheading.
3907.99.00Polyhydroxyalkanoate (PHA) Biopolymer Resin
Polyhydroxyalkanoate (PHA) biopolymer resin, a family of bio-based polyesters from bacterial fermentation, used in packaging films, in primary pellet form. This polyester is classified under 3907.99.00 as other polyesters, as hydroxyalkanoic acid monomer units form ester linkages. The product is in primary form and meets the definition of a polyester under chapter note 1.
3907.99.00Polytrimethylene Terephthalate (PTT) Pellets
Polytrimethylene terephthalate (PTT) pellets are semi-crystalline polyesters used in textiles, carpets, and films, supplied in primary form. They are classified as other polyesters since terephthalic and propanediol units predominate but do not have a specific subheading.
3907.99.00Radel LCP Copolymer Pellets
Radel LCP copolymer pellets are advanced thermoplastic liquid crystal aromatic polyester copolymers used in medical device housings and connectors. They are supplied in primary forms and consist of aromatic polyester units, qualifying under this tariff item as other polyesters.
3907.99.00Semitron LCP 4100 Resin
Semitron LCP 4100 resin is a high-performance thermoplastic liquid crystal aromatic polyester copolymer designed for ESD applications in electronics manufacturing. It is supplied in primary forms and consists of over 95% aromatic polyester units, falling under this tariff item as other polyesters.
3907.99.00Thermoplastic Polyester Elastomer TPEE Pellets
Thermoplastic polyester elastomer (TPEE) pellets for wire insulation and seals feature polyester crystallizable segments. They are in primary forms and qualify as other copolyesters where polyester exceeds other units by weight.
3907.99.00Unfilled PBT Thermoplastic Resin
Standard unfilled PBT thermoplastic resin for extrusion and molding without glass fiber reinforcement. This resin is pure polybutylene terephthalate in primary form, meeting the 95% monomer purity criterion of subheading note 1. It is classified under 3907.99.00 as other polyesters in primary forms.
3907.99.00Unsaturated Polyester Resin (Non-specific) Flakes
Unsaturated polyester resin (non-specific) flakes for composites beyond standard aromatic types, with maleic anhydride and diols. They are in primary forms and qualify as other polyesters not fitting the criteria for unsaturated polyester resin under a specific tariff item.
3907.99.00Unsaturated Polyester Resin (UPR)
Liquid unsaturated polyester resin (UPR) for fiberglass composites in marine and construction applications, supplied in primary form before curing. This polyester is classified under 3907.99.00 as other polyesters, as it is not specifically named in other subheadings and meets the definition of a polyester in primary form. The product is a liquid, which is a primary form under chapter note 6, and is not a composition with additives exceeding 1% by weight.
3907.99.00Valox PBT Polymer Resin
Commercial-grade Valox® PBT resin for injection molding applications requiring dimensional stability. This polybutylene terephthalate is in primary form and meets the 'poly' prefix definition under subheading note 1, with butylene terephthalate units at 95% or more by weight. It is classified under 3907.99.00 as other polyesters in primary forms.
3907.99.00Vectra E130i LCP Resin
Vectra E130i LCP resin is a thermoplastic liquid crystal polymer (LCP) copolymer resin composed of aromatic polyester units, supplied in pellet form for injection molding. It falls under this tariff item as other polyesters because it meets the criteria for primary forms and is not specifically named elsewhere.
3907.99.00Xydar G330 LCP Pellets
Xydar G330 LCP pellets are glass-filled thermoplastic liquid crystal aromatic polyester copolymers optimized for electrical connectors and automotive parts. They are in primary forms and consist of aromatic polyester units, qualifying under this tariff item as other polyesters.
3907.99.00Zenite 7141 LCP Compound
Zenite 7141 LCP compound is a mineral-filled thermoplastic liquid crystal aromatic polyester copolymer for under-hood automotive applications. It meets the criteria for this tariff item as other polyesters, with liquid crystal aromatic polyester monomers comprising the primary composition.