B29D2030/383

AQUEOUS DIPPING COMPOSITION

The present invention relates to an aqueous dipping composition for coating a textile reinforcing material, comprising at least one rubber latex, at least one blocked isocyanate, at least one filler, at least one epoxy group-containing compound, and at least one polymer with carboxylic acid functional groups. The present invention further relates to the use of such a composition, to a process for coating a textile reinforcing material with this composition, to a coated textile reinforcing material and a respective elastomeric article comprising the coated textile reinforcing material.

Method and device for manufacturing rubber coated cord
11318654 · 2022-05-03 · ·

A method and a device for manufacturing a rubber coated cord, comprising: a rubber coated cord including a preceding cord is manufactured by causing the preceding cord to pass through a preceding head while filling the preceding head with unvulcanized rubber extruded from a rubber extruder, and a rubber coated cord including a next cord is manufactured by setting a leading edge portion of the next cord in a state where the leading edge portion of the next cord has passed through the next head in advance, manufacturing a predetermined length of the rubber coated cord including the preceding cord, and subsequently causing the next cord including a leading edge portion side range bonded to a trailing edge portion of the rubber coated cord including the preceding cord to pass through the next head while switching from the preceding head to the next head.

Method for producing a vehicle tire, vehicle tire produced according to the method, and use of treated reinforcing supports

A method for producing a vehicle tire, having the following steps: a) providing textile reinforcing supports; b) providing a bath which is free of resorcin and formaldehyde by at least: b1) adding at least one carboxylic acid to water; b2) adding at least one base; b3) adding at least one epoxy compound; b4) adding at least one polyisocyanate compound; b5) adding at least one VP latex; and b6) mixing the substances from b1) to b5); c) dipping the reinforcing supports from step a) into the bath from step b); d) subsequently hot-stretching the dipped reinforcing supports from step c); and e) further processing the reinforcing supports from step d) in order to form a reinforcing support layer in a vehicle tire blank. A vehicle tire which is produced using the method and to the use of reinforcing supports treated in such a manner in technical rubber articles are also disclosed.

SULFUR-CROSSLINKABLE RUBBER-COATING MIXTURE

The invention relates to a sulfur-crosslinkable rubberization mixture for metallic or textile strength members containing at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and at least one etherified melamine resin. The invention further relates to a pneumatic vehicle tire which comprises at least one such sulfur-crosslinked rubberization mixture.

For improved durability of the rubberized strength members, the rubberization mixture contains less than 2.5 phr (parts by weight, based on 100 parts by weight of the total rubbers in the mixture) of at least one novolac resin comprising alkyl urethane units and produced by reaction of a phenolic compound, an aldehyde and a carbamate resin, wherein the carbamate resin is produced by reaction of alkyl urethane with an aldehyde, and less than 2.5 phr of at least one etherified melamine resin.

WIRE COAT RUBBER COMPOSITION FOR A TIRE AND A TIRE COMPRISING A WIRE COAT RUBBER COMPOSITION

In accordance with the invention a wire coat rubber composition for a tire comprises from 70 phr to 100 phr of cis 1,4-polyisoprene rubber, from 0 phr to 30 phr of solution styrene butadiene rubber, from 65 phr to 95 phr pre-silanized precipitated silica, from 0.1 phr to 5 phr of a cobalt salt, up to 15 phr carbon black, up to 10 phr of a resin, and up to 10 phr oil. Further the present invention is directed to a tire comprising such a wire coat composition.

Wire coat rubber composition for a tire and a tire comprising a wire coat rubber composition

In accordance with the invention a wire coat rubber composition for a tire comprises from 70 phr to 100 phr of cis 1,4-polyisoprene rubber, from 0 phr to 30 phr of solution styrene butadiene rubber, from 65 phr to 95 phr pre-silanized precipitated silica, from 0.1 phr to 5 phr of a cobalt salt, up to 15 phr carbon black, up to 10 phr of a resin, and up to 10 phr oil. Further the present invention is directed to a tire comprising such a wire coat composition.

Resin-metal composite member for tire, and tire

A resin-metal composite member for a tire, the member including: a metal member; an adhesive layer; and a covering resin layer in this order, wherein: the adhesive layer includes a continuous phase containing a polyester-based thermoplastic elastomer having a polar functional group, and a discontinuous phase containing a styrene-based elastomer, and a ratio of the continuous phase with respect to an entirety of the adhesive layer is from 60% by mass to 93% by mass.

METHOD AND DEVICE FOR MANUFACTURING RUBBER COATED CORD
20210252762 · 2021-08-19 ·

A method and a device for manufacturing a rubber coated cord, comprising:

a rubber coated cord including a preceding cord is manufactured by causing the preceding cord to pass through a preceding head while filling the preceding head with unvulcanized rubber extruded from a rubber extruder, and a rubber coated cord including a next cord is manufactured by setting a leading edge portion of the next cord in a state where the leading edge portion of the next cord has passed through the next head in advance, manufacturing a predetermined length of the rubber coated cord including the preceding cord, and subsequently causing the next cord including a leading edge portion side range bonded to a trailing edge portion of the rubber coated cord including the preceding cord to pass through the next head while switching from the preceding head to the next head.

PLASMA CORD COATING DEVICE

This invention is directed to a plasma cord coating device comprising a pair of opposite and parallel plate electrodes having a first electrode and a second electrode, a pair of planar and parallel dielectric barriers including a first dielectric barrier, and a second dielectric barrier, wherein the first electrode is covered by the first dielectric barrier on a side facing the second electrode and the second electrode is covered by the second dielectric barrier on a side facing the first electrode to form a gap between the first and the second dielectric barriers. This device includes a first foil which extends through the gap and covers the first dielectric barrier and a second foil which extends through the gap and covers the second dielectric barrier to form a plasma treatment zone between the first foil and the second foil.

METHOD FOR PRODUCING A THREADLIKE REINFORCEMENT ELEMENT
20210053307 · 2021-02-25 ·

A method for manufacturing a bonded reinforcing textile filamentary element (48) comprising a core and a layer of strands is disclosed. The textile filamentary element in the natural state is assembled. A textile filamentary element in the natural state or pre-bonded textile filamentary element is obtained. The filamentary element in the natural state or pre-bonded filamentary element is coated with an external layer of at least one heat-crosslinkable adhesive composition. The filamentary element in the natural state or pre-bonded filamentary element that is coated with the external layer is thermally treated so as to crosslink the adhesive composition in order to obtain the bonded filamentary element (48). The steps of coating with and of thermally treating the external layer of the filamentary element in the natural state or pre-bonded filamentary element are carried out such that, for an elongation equal to 30% of the elongation at break of the filamentary element in the natural state, the tangent modulus of the bonded reinforcing textile filamentary element (48) is increased compared with the tangent modulus of the filamentary element in the natural state.