FIELD: packaging.
SUBSTANCE: invention relates to packaging products used for transportation and storage of rubber-like polymers. Options are proposed for packaged moulded rubber-like polymer for storage and transportation, containing a moulded rubber-like polymer having a weight average molecular weight of not less than 100,000, and a packaging film packaging the moulded rubber-like polymer, where the film is a single-layer film formed from a film selected from the group consisting of polyethylene resin, polystyrene resin, polyethylene terephthalate resin and ethylene-vinyl alcohol copolymer, or a multilayer film. In the first option, the part of the packaging film facing the moulded rubber-like polymer satisfies the following conditions: this part contains at least 50 holes and the share of the total the area of the holes is 0.1% or more and 15% or less with respect to the total area of the portion facing the moulded rubber-like polymer, and in the second option, the portion of the packaging film facing the moulded rubber-like polymer contains holes and the share of the total area of the holes is 0.1% or more and 15% or less relative to the total area of the portion facing the moulded item, and the share of the area of the portion not having any openings of dimensions not less than 1 mm 2 per 10,000 mm 2 of the packaging film is not more than 70% relative to the total area the part facing the moulded product; using the proposed packaged moulded rubber-like polymer to obtain a cross-linking rubber composition in the form of a mixture; a method for producing the proposed packaged moulded rubber-like polymer; a method for producing a crosslinking rubber composition using the proposed packaged moulded rubber-like polymer and a tire tread containing a crosslinking rubber composition.
EFFECT: creation of a packaged moulded product in which, even if the rubber-like polymer does not flow well when cold, condensation in the packaging film easily disappears.
15 cl, 4 dwg, 7 tbl, 33 ex
