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Notas Legales Capitulo 39

Unless otherwise specified in this Chapter, copolymers (including copolycondensates, copolyaddition products, block copolymers and grafted copolymers) and polymer mixtures are classified under heading including polymers of the comonomer unit which predominates by weight over any of the other simple comonomer units. For the purposes of this note, comonomer units forming polymers of the same heading. 6. For headings Nos 39.01 to 39.14, the term «primary forms» applies only to the following forms: for example, acetylated phenolic resins (polymers of heading No 39.09) are classified in subheading 3909.40 as phenolic resins, since there are no «other» subheadings in the corresponding series of subheadings. The term «polymerization» is used in this broad definition and includes any process for obtaining polymers, including polymerization by addition, reorganization (polyaddition) and condensation (polycondensation). The following chain represents three monomer units: for example, chlorinated or chlorosulfonated polyethylene, which is a chemically modified polyethylene of heading No 39.01, is classified under subheading 3901.90 (`other`). Edition: Sep 0 0. INDEX 0. 1 1.

SCOPE. EXECUTION OF INSTALLATIONS.. 1 Classification of volumes. 1.1 0….1. 1….1…..1.4. Protection to ensure safety. 4. The text of these specific subheadings is replaced by the following: `polymers of x`, `copolymers of x` or `polymers x`.

(e.g. propylene copolymers (subheading 3902.30), fluoropolymers (subheadings 3904.61 and 3904.69). In order to be classified in these subheadings, it is only necessary that the monomer unit referred to in subheading prevails over all other simple monomer units of the series concerned. In other words, the monomer unit referred to in subheading must not exceed 50% of the total polymer content of the series concerned. The grafted copolymers are copolymers consisting of a main polymeric chain to which are added side chains with monomer units of different structure. These are, for example, polystyrene grafted on a styrene-butadiene copolymer, or a styrene-acrylonitrile copolymer grafted on polybutadiene. Solvent-free liquid polymers which clearly indicate that they are intended solely for use as varnishes (in which the formation of the film at the time of use depends on the action of heat, moisture or oxygen and not on the addition of a hardener) are classified in heading No 32.10. If this condition is not met, they are classified in this chapter. 1. In a title of this Chapter, polymers (including copolymers) and chemically modified polymers are classified as follows: STATISTICS OF INTERNATIONAL TRADE IN TIMBER AND TIMBER PRODUCTS IN COSTA RICA (PERIOD 2000-FEBRUARY 2008) BACKGROUND by: María Isabel Chavarría E. SINACMINAE polymers chemically modified to obtain reactive epoxy groups which transform them into epoxy resins (see Explanatory Notes to heading No 39.07), fall within heading No 39.07.

For example, phenolic resins chemically modified by the addition of epichloridine are classified as epoxy resins and not as chemically modified phenolic resins falling within heading No 39.09. (a) in the case of a subheading `other` of the series of subheadings to be taken into account: BASIC GUIDE TO EXPORTS TO THE UNITED STATES Plastics and manufacturing sector Content 1. Identification of the sector. 5 2nd American profile. 7 2.1 Map. 7 2.2 Economic and demographic situation. A polymer mixture in which one of its constituent polymers has been chemically modified is considered to be chemically modified in its entirety. Mixtures of polymers fall in the same subheading as polymers produced with the same monomer units in the same proportions. 4. Copolymers: all polymers in which no monomer unit represents at least 95 % by weight of the total content of the polymer. PLASTICS 1.1. INTRODUCTION Around us there are an infinite number of products made partially or entirely of plastic.

In general, a plastic is a flexible and resistant material, (a) impregnated with felt, coated, coated or laminated with plastic, with a textile content not exceeding 50%, and felt completely immersed in the plastic; The copolymers classified in these four subheadings must represent at least 95% by weight of the monomer units of the polymers referred to in the text of the subheading. In the nomenclature, the term plastic also includes vulcanized fibers. However, this term does not apply to textiles in Section XI. (In this particular case, the monomer unit and the repeating constituent unit are identical.) (9) For the purposes of heading No 39.18, plastic wall or ceiling coverings are articles in rolls of a width of at least 45 cm, suitable for ornamentation of walls or ceilings, of grained plastic material (on the exposed side), embossed, dyed with printed motifs or otherwise decorated and permanently fixed on a support of materials other than paper. The many polymers mentioned in this chapter are also known by their abbreviated names. The following list contains some of the most commonly used abbreviated names: for example, chlorinated polyethylene and chlorosulfonated polyethylene are classified under heading 39.01. Similarly, a copolymer consisting of 45 % ethylene monomer units, 35 % propylene monomer units and 20 % isobutylene monomer units falls in heading No 39.02, since propylene and isobutylene monomer units of which the units classified in heading No 39.02 represent 55 % of the total content of the copolymer; assembly against ethylene monomer unit. 2. Subheading (a)(2) concerns the classification of goods falling within subheadings 3901.30, 3903.20, 3903.30 and 3904.30. (c) fabrics impregnated, coated, coated or laminated with plastics which cannot be rolled by hand without tearing a feed chuck with a diameter of 7 mm at a temperature between 15 °C and 30 °C; Chapter 32 Tanning or dyeing extracts; tannins and their derivatives; pigments and other dyes; paints and varnishes; Putty; Handwritten notes. 1. This Chapter shall not apply to: (a) products.

Plastics combined with other materials, excluding textiles A material in this Chapter is defined as «thermoplastic» if it can be repeatedly softened by heating and hardened by cooling and thus takes shape because of its plasticity, mainly by moulding. It is called «thermoset» when it can be transformed or is already transformed into an infusable product by physical or chemical treatment (e.g. heat treatment). Whereas headings Nos 39.01 to 39.14 concern only goods in primary forms; The term primary forms is defined in Note 6 to this Chapter and refers only to substances in the following forms: In accordance with the Note to subheading 1, polymers (including copolymers) and chemically modified polymers are classified in accordance with (a) or (b) of the Note; depending on whether or not there is a subheading in the series of subheadings to be taken into consideration, called `Other`. TAXONOMY OF THERMOSETTING PLASTIC ELASTOMERS They soften when heated and harden again when cooled THEY ARE RECYCLED. In general, they are soft and flexible. CLASSIFICATION According to its structure 1) liquids or pastes. These are usually either basic polymers, which still need to be subjected to heat treatment, or another to form the finished material, dispersions (emulsions and suspensions) or solutions of untreated or partially treated materials. In addition to substances necessary for processing (such as hardeners (cross-linking agents) or other correlates and accelerators), these liquids or pastes may contain other materials, such as mainly plasticisers, stabilisers, fillers and colourants, to impart certain physical or other desirable properties to the final product. These liquids or pastes are then processed by casting, extrusion, etc., and are also used as impregnating, coating, coating products, as a base for varnishes or paints such as adhesives, thickeners, flocculants, etc.