Abstract: Rubber compositions, rubber articles and methods for making such rubber articles that include a rubber composition having, per 100 parts by weight of rubber (phr), a modified rubber component such as an epoxidized rubber component selected from an epoxidized polybutadiene rubber (eBR), an epoxidized styrene-butadiene rubber (eSBR), or combinations thereof having a Tg of between ?80° C. and ?110° C. as well as a second rubber component selected from the group consisting of a polybutadiene rubber (BR), a styrene-butadiene rubber (SBR) and combinations thereof. Also between 30 phr and 130 phr of an efficient plasticizing resin may be included. An efficient plasticizing resin is one that when included in a mixture of the modified rubber component and 67 phr of the efficient plasticizing resin, causes a Tg of the mixture to be at least 14° C. higher than the Tg of the modified rubber component itself.

Abstract: A tire tread formed at least in part from a rubber composition that is based upon a cross-linkable rubber composition that may include between 50 phr and 90 phr of a first highly unsaturated elastomer being middle chain functionalized with an aminoalkoxysilane group and having a Tg of between ?108° C. and ?45° C. and between 10 phr and 50 phr of a second highly unsaturated elastomer being end-chain functionalized with a silanol group and having a Tg of between ?108° C. and ?10° C. The rubber composition may further include between 50 phr and 150 phr of a silica filler and a plasticizing system comprising between 5 phr and 120 phr of a plasticizing resin having a Tg of at least 25° C. and between 0 phr and 60 phr of a plasticizing liquid.

Abstract: Tire treads and tires having such tire treads are included, such treads manufactured with a rubber composition that includes mostly, if not entirely, a polybutadiene rubber having cis-1,4 bond content of at least 95%. The rubber composition further includes between 60 phr and 95 phr of a plasticizing resin having a Tg of at least 25° C. and between 0 phr and 15 phr of a liquid plasticizer. Additionally the rubber composition is reinforced with at least 90 phr of a silica reinforcing filler. Alternatively, in some embodiments, the rubber composition may be reinforced with an organic filler, an inorganic filler or combinations thereof. In some of these embodiments, the rubber composition includes at least 90 phr of such reinforcing filler.

Abstract: A tread for a tire, the tread comprising a rubber composition that is based upon a cross-linkable elastomer composition, the cross-linkable elastomer composition comprising, per hundred parts by weight of rubber (phr), a high-Tg rubber being a highly unsaturated diene elastomer having a glass transition temperature of between ?30° C. and 0° C., a low-Tg rubber being a highly unsaturated diene elastomer having a glass transition temperature of between ?110° C. and ?60° C. The high-Tg and the low-Tg elastomers are incompatible and this provides, among other advantages, improved snow traction of the tread when compared to tire treads having lower Tg.

Abstract: Treads and tires having such treads having improved characteristics breaking the compromise between Wear and wet braking, such treads manufactured from a rubber composition that may include greater than 90 phr of an elastomer component selected from styrene-butadiene rubber (SBR), a polybutadiene or combinations thereof having, a glass transition temperature of between ?100° C. and less than ?50° C. and a plasticizing system. The plasticizing system may include, for example, between 5 phr and 120 phr of a plasticizing resin having a Tg of at least 25° C. and between 0 phr and 60 phr of a plasticizing liquid. Particular embodiments may include the elastomer component having a Tg of between ?90° C. and ?60° C. and/or may further have the elastomer component included in an amount of at least 95 phr.

Abstract: Treads and tires having such treads having improved characteristics that break the compromise between wet/dry traction and wear. Such treads may comprise a rubber composition based upon a cross-linkable elastomer composition having a highly unsaturated diene elastomer and between 100 phr and 160 phr of an inorganic reinforcing filler. Embodiments may further include an effective amount of a plasticizing system that includes a plasticizing resin having a glass transition temperature (Tg) of at least 25° C. and a plasticizing liquid. The effective amount of the plasticizer system may be between 60 phr and 130 phr for particular embodiments and is effective in the amount for providing the rubber composition with a shear modulus G* measured at 60° C. of between 0.4 MPa and 1 MPa, Particular embodiments may further include the rubber composition forming the tire tread, to have a glass transition temperature of between ?30° C. and 0° C.

Abstract: A global composition system is described. In one or more implementations, the global composition system may be configured to perform rendering for a plurality of applications. For example, the global composition system may be configured to expose one or more application programming interfaces (APIs) that are accessible to the applications. The APIs may then be used to cause a single composition engine to perform the rendering for the plurality of applications. The use of a single composition engine may be used to support a variety of different functionality, such as to perform efficient rendering by knowing what elements are provided by each of the applications and how those items relate for rendering to a display device.

Abstract: Tire treads having one or more repeating pitches, each repeating pitch comprising individual pitches having tread blocks with sipes formed therein and each pitch having a pitch length of between 15 mm and 35 mm. Such treads may also have a weighted average sipe density Dw of between 10 mm?1 and 37 mm?1, which is determined through the disclosed Eq. 2 below. The tread blocks are also formed from a rubber composition based upon a diene elastomer, a plasticizing system and a cross-linking system, wherein the rubber composition has a glass transition temperature of between ?40° C. and ?15° C. and a shear modulus G* measured at 60° C. of between 0.5 MPa and 1.1 MPa.

Abstract: A tyre, which has an improved grip on wet ground, includes a tread formed of at least a rubber composition. The rubber composition includes: 20 to 100 phr of a first diene elastomer bearing at least one SiOR function, with R being hydrogen or a hydrocarbon radical, and with phr referring to parts by weight per hundred parts of elastomer; 100 to 160 phr of a reinforcing inorganic filler; and a plasticizing system. The plasticizing system includes: a content A of between 5 and 60 phr of a hydrocarbon resin having a Tg above 20° C.; and a content B of between 5 and 60 phr of a liquid plasticizing agent. A total content A+B is greater than 45 phr. The rubber composition optionally includes 0 to 80 phr of a second diene elastomer.

Abstract: A tyre, which has an improved grip on wet ground, includes a tread formed of at least a rubber composition. The rubber composition includes: from 50 to 100 phr of a copolymer based on styrene and butadiene, e.g., a styrene/butadiene copolymer (SBR), with phr referring to parts by weight per hundred parts of elastomer; from 100 to 150 phr of a reinforcing inorganic filler, e.g., silica; and a plasticizing system. The plasticizing system includes: a content A of between 10 and 60 phr of a thermoplastic hydrocarbon resin exhibiting a Tg of greater than 20° C.; and a content B of between 10 and 60 phr of a liquid plasticizing agent. A total content A+B is greater than 50 phr. Optionally, the rubber composition includes from 0 to 50 phr of another copolymer, e.g., a diene elastomer such as a polybutadiene or natural rubber.

Abstract: A snow tyre with an improved grip on wet ground includes a tread formed of a rubber composition. The rubber composition includes: 20 to 100 phr of a first diene elastomer bearing at least one SiOR function, with R being hydrogen or a hydrocarbon radical, and with phr referring to parts by weight per hunder parts of elastomer; 100 to 160 phr of a reinforcing inorganic filler; and a plasticizing system. The plasticizing system includes: a content A of between 10 and 60 phr of a hydrocarbon resin having a Tg above 20° C.; and a content B of between 10 and 60 phr of a liquid plasticizing agent. A total content A+B is greater than 50 phr. Optionally, the rubber composition also includes 0 to 80 phr of a second diene elastomer.

Abstract: The present invention provides a tire tread having a configuration and material properties that improve wet traction. In particular, the tread has a specified minimum threshold for chamfer density and a maximum level of complex shear modulus for the material that constitutes the tread in order to optimize the road friction coefficient (p) a tire tread experiences during a wet braking event. This results in better wet traction and a shorter stopping distance during the braking event.

Abstract: Tires having treads constructed of a material that is based upon a cross-linkable rubber composition, the rubber composition in some embodiments including between 25 phr and 5.0 phr of a butadiene rubber and between 50 phr and 75 phr of a styrene-butadiene rubber (SBR). wherein the butadiene portion of the SBR has at least 50% vinyl content. The rubber composition may further include between 25 phr and 60 phr of a plasticizing resin having a glass transition temperature Tg of between 30° C. and 120° C. and between 25 phr 60 phr of a vegetable oil. The ratio of the vegetable oil phr to the high Tg resin phr may, in some embodiments, be between 0.75 and 3. Further, such rubber compositions may also be reinforced with between 100 phr and 200 phr of a silica filler.