This invention relates to a tire with a tread of a rubber composition that promotes a combination of winter traction at low temperatures and for promoting wet traction. The tread rubber composition contains a combination of low surface area silica and high softening point traction resin. Elastomers for the tread rubber composition are comprised of high cis 1,4-polybutadiene rubber and styrene/butadiene rubber.

This invention relates to a tire with a tread of a rubber composition that promotes a combination of winter traction at low temperatures and for promoting wet traction. The tread rubber composition contains a combination of low surface area silica and high softening point traction resin. Elastomers for the tread rubber composition are comprised of high cis 1,4-polybutadiene rubber and styrene/butadiene rubber.

The invention relates to storage-stable hot-melt adhesive containing 15 to 70 wt % of a mixture of at least one copolymer based on ethylene and/or propylene and at least one C4 to C20 α-olefin which is obtainable as a block copolymer by metallocene-catalyzed polymerization, and at least one styrene block copolymer, 10 to 70 wt % of at least one tackifying resin, 0 to 40 wt % of further additives, wherein the total of the percentages should amount to 100% and the tackifying resin is entirely or in part a soft resin.

A tire, the tread of which comprising a rubber composition is provided. The rubber composition includes from 35 to 65 phr of an emulsion styrene/butadiene copolymer (E-SBR), from 35 to 65 phr of a polybutadiene (BR); optionally, from 0 to 30 phr of another diene elastomer, from 90 to 150 phr of silica as reinforcing inorganic filler; optionally, less than 20 phr of carbon black; and a plasticizing system. The plasticizing system includes a hydrocarbon resin (A) exhibiting a Tg greater than 20° C. in an amount between 10 and 60 phr, and a plasticizer (B) which is liquid at 20° C. and exhibits a Tg of less than −20° C. in an amount between 10 and 60 phr, wherein the total amount of plasticizers, A+B, is between 50 and 100 phr.

Provided are: a rubber composition for treads which contains a diene rubber in the rubber component and can simultaneously achieve blowing resistance during dry running, wet grip performance and abrasion resistance; and a pneumatic tire including a tread formed from the rubber composition for treads. The rubber composition contains: a diene rubber including styrene-butadiene rubber; zinc dithiophosphate; an inorganic filler including at least one selected from the group consisting of: a compound of the formula: mM.xSiO.sub.y.zH.sub.2O wherein M represents at least one metal selected from the group consisting of Al, Mg, Ti, Ca, and Zr, or an oxide or hydroxide of the metal, m represents an integer of 1-5, x represents an integer of 0-10, y represents an integer of 2-5, and z represents an integer of 0-10; magnesium sulfate; and silicon carbide, and having a BET value of 5-120 m.sup.2/g and a linseed oil absorption of 30-80 mL/100 g; and sulfur, wherein, per 100 parts by mass of the diene rubber, there are 0.2-15 parts by mass of the zinc dithiophosphate, 1-70 parts by mass of the inorganic filler, and less than 2.5 parts by mass of zinc oxide.

The present invention provides a self-emulsification type emulsion exhibiting excellent adhesion to olefin-based base materials such as polyethylene and polypropylene without using an emulsifier. The self-emulsification type emulsion of the present invention comprises a tackifier and a modified polypropylene resin having an anionic functional group, and satisfies (1) and (2) given below:

(1) the modified polypropylene resin having an anionic functional group is dispersed in water in the absence of an emulsifier, and
(2) a dispersion particle comprising the modified polypropylene resin having an anionic functional group surrounds the tackifier.

The present invention provides a self-emulsification type emulsion exhibiting excellent adhesion to olefin-based base materials such as polyethylene and polypropylene without using an emulsifier. The self-emulsification type emulsion of the present invention comprises a tackifier and a modified polypropylene resin having an anionic functional group, and satisfies (1) and (2) given below:

(1) the modified polypropylene resin having an anionic functional group is dispersed in water in the absence of an emulsifier, and
(2) a dispersion particle comprising the modified polypropylene resin having an anionic functional group surrounds the tackifier.

Provided is a high performance tire including a tread formed from a rubber composition which achieves a balanced improvement in grip performance, abrasion resistance, and processability. The present invention relates to a high performance tire including a tread formed from a rubber composition, the rubber composition containing: a rubber component including a styrene-butadiene copolymer (1); a styrene-butadiene copolymer (2); and a hydrogenated terpene aromatic resin, the styrene-butadiene copolymer (1) and the styrene-butadiene copolymer (2) differing in styrene content by 10% by mass or more.

Polymer compositions suitable for modeling are provided as plastisols with a high content of volatile substances, such as bactericidal, aromatizing, and/or flavoring volatiles. Such plastisols are provided by mixing a lyophilic polyamide or lyophilic complex polyester with a plasticizer of moderate to low polarity that includes a bactericidal, aromatizing, and/or flavoring components, such as an essential oil. After mixing, additives such as fillers, pigments, and gelling agents are added. A solid plastic is producing by heating the formed plastisol to a gelation temperature and then heating to a solution temperature to generate a solid plastic with enduring bactericidal activity, scent, and/or flavor.

Polymer compositions suitable for modeling are provided as plastisols with a high content of volatile substances, such as bactericidal, aromatizing, and/or flavoring volatiles. Such plastisols are provided by mixing a lyophilic polyamide or lyophilic complex polyester with a plasticizer of moderate to low polarity that includes a bactericidal, aromatizing, and/or flavoring components, such as an essential oil. After mixing, additives such as fillers, pigments, and gelling agents are added. A solid plastic is producing by heating the formed plastisol to a gelation temperature and then heating to a solution temperature to generate a solid plastic with enduring bactericidal activity, scent, and/or flavor.