Abstract: Concentrated suspensions containing phytosterols, in an amount higher than 25% by weight, in addition to a process for their preparation and their relative use as stimulants of plant growth.

Abstract: A tread comprising a plurality of grooves and manufactured using a rubber compound comprising at least one cross-linkable unsaturated chain polymeric base, a filler, a vulcanization system and a wax comprising at least 50% by weight nonacosandiols. At least part of said grooves has a hydrophobic surface structure comprising a plurality of protruding elements.

Abstract: Method for the manufacture of the innerliner compound comprising: —a first mixing step wherein at least one cross-linkable unsaturated chain polymeric base and one filler system are mixed together; —a final mixing step wherein a vulcanization system is added and mixed with the mixture deriving from an earlier mixing step; and —an intermediate mixing step, interposed between said first mixing step and the final mixing step, and wherein lignin is added and mixed into the mixture deriving from a previous mixing step.

Abstract: A body ply skim layer in which a reinforcing ply is embedded, arranged at a distance T from an outer surface of the body ply skim layer and at a distance B from an inner surface of the body ply skim layer, such as to define an asymmetry index AT equal to 100×(T?B/T+B). The asymmetry index AT is greater than ?100 and less than 0.

Abstract: A rubber compound for body ply skim comprising: —a mix of rubber consisting of (i) Epoxidized Natural Rubber acting as polymer base with a cross-linkable unsaturated chain; (ii) Natural Rubber acting as polymer base with a cross-linkable unsaturated chain; (iii) Polyepihalohydrin rubber, —a filler material, and—a vulcanization system; The compound comprises: 70 to 90 phr of said Polyepihalohydrin rubber; 5 to 25 phr of said Epoxidized Natural Rubber (E-NR); and 5 to 25 phr of said Natural Rubber (NR); the phr ratio between E-NR and NR ranging from 0.2 to 5.0.

Abstract: Body ply skim compound comprising a cross-linkable unsaturated chain polymer base, a filler material, a vulcanization system and a polyepihalohydrin rubber. The compound comprises epoxidized natural rubber as a cross-linkable unsaturated chain polymer base and a laminated structure material as a filler material.

Abstract: Body ply skim compound comprising a cross-linkable unsaturated chain polymer base, a filler material, a vulcanization system and a polyepihalohydrin rubber. The compound comprises epoxidized natural rubber as a cross-linkable unsaturated chain polymer base and a laminated structure material as a filler material.

Abstract: A tire portion selected from the group including an innerliner, tread ply skim, TBR body ply skim, bead reinforcing skim, undertread, tie gum, squeegee, folded edge gum strip, belt edge gum strip and tread ply insert, and made from a compound including a polymer base and curing agents. The compound also includes a carbohydrate having 2 to 30 repetitive, possibly substituted, units.

Abstract: A tyre having a rubber inner layer facing the inner cavity of the carcass; and a cover film made entirely of graphite or graphene and deposited on a surface of the inner layer.

Abstract: A tyre portion selected from the group including an innerliner, tread ply skim, TBR body ply skim, bead reinforcing skim, undertread, tie gum, squeegee, folded edge gum strip, belt edge gum strip and tread ply insert, and made from a compound including a polymer base and curing agents. The compound also includes a carbohydrate having 2 to 30 repetitive, possibly substituted, units.

Abstract: A method of producing colored tire portions, the method including: a step of forming a highly impermeable barrier layer; and a step of depositing a dye or colored layer on the barrier layer. The step of forming the barrier layer includes, in sequence, the operations of (a) depositing an aqueous dispersion on the part of the tire for coloring; (b) separating said aqueous dispersion into an aqueous phase and a solid phase; and (c) removing the aqueous phase.

Abstract: A coloured tyre portion having a polymer base with added pigments for producing the desired colour, and an added optical whitener. Alternatively, the optical whitener is added to a dye deposited on a highly impermeable barrier layer, in turn deposited on the part of the tyre for colouring.

Abstract: A tyre having at least one coloured portion having: —a highly impermeable barrier layer; and—a polyurethane paint on the barrier layer. The highly impermeable barrier layer is made by depositing on the part of the tyre to be coloured an aqueous dispersion which is eventually dried.

Abstract: A method of producing coloured tyre portions, the method including: a step of forming a highly impermeable barrier layer; and a step of depositing a dye or coloured layer on the barrier layer. The step of forming the barrier layer includes, in sequence, the operations of (a) depositing an aqueous dispersion on the part of the tyre for colouring; (b) separating said aqueous dispersion into an aqueous phase and a solid phase; and (c) removing the aqueous phase.