摘要:
A tire with a changing tread pattern is formed by first forming a tire having a tread, the tread having at least one circumferential or lateral groove. Formed separately is a wearable filler, the wearable filler having a configuration corresponding to at least a portion of the circumferential or lateral groove formed in the tire. After both the tire and the wearable filler have been cured, the wearable filler is located in the radially outer portion of the circumferential or lateral groove or a portion of the circumferential or lateral groove, and secured within the grooves so as to create a groove void radially inward of the wearable filler, the void being exposed upon wear of the tire tread.
摘要:
A tire with a changing tread pattern is formed by first forming a tire having a tread, the tread having at least one circumferential or lateral groove. A wearable filler, having a configuration corresponding to at least a portion of the circumferential or lateral groove formed in the tire, is located in the radially outer portion of the circumferential or lateral groove or a portion of the circumferential or lateral groove, and secured within the grooves so as to create a groove void radially inward of the wearable filler, the void being exposed upon wear of the tire tread.
摘要:
A tire with a changing tread pattern is formed by first forming a tire having a tread, the tread having at least one circumferential or lateral groove. Formed separately is a wearable filler, the wearable filler having a configuration corresponding to at least a portion of the circumferential or lateral groove formed in the tire. After both the tire and the wearable filler have been cured, the wearable filler is located in the radially outer portion of the circumferential or lateral groove or a portion of the circumferential or lateral groove, and secured within the grooves so as to create a groove void radially inward of the wearable filler, the void being exposed upon wear of the tire tread.
摘要:
The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising: from 70 to 90 phr of a styrene-butadiene rubber functionalized with an alkoxysilane group and at least one of a primary amine group and thiol group; from 10 to 30 phr of at least one additional diene based elastomer; from 60 to 100 phr of precipitated silica; from 1 to 10 phr of a polyoctenamer; from 5 to 25 phr of a starch/plasticizer composite; and from 10 to 20 phr of a tackifying resin.
摘要:
There is disclosed a rubber composition comprising: (a) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (b) 1 to 150 phr of a precipitated organosilicon particles having a core and a shell, wherein the core is obtained by the condensation of at least one monomer of the formula: R1—Si(OR2)3 I where R1 is selected from the group consisting of hydrogen, methyl, ethyl, vinyl, alkoxy having from 1 to 4 carbon atoms, and phenyl; R2 is selected from the group consisting of alkyls having from 1 to 4 carbon atoms and phenyl; and wherein said condensation of said monomer is in the presence of a surfactant; and wherein the shell is obtained by the subsequent addition to the core of a monomer of the formula: R3—Si(OR2)3 II where R3 is selected from the group consisting of —CH═CH2, —CH2—CH═CH2, &Parenopenst;CH2&Parenclosest;nSH and mixtures thereof; and n is an integer of from 2 to 8.
摘要:
The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, (A) 10 to 40 phr of a polybutadiene rubber having a microstructure comprised of about 96 to about 98 percent cis 1,4-isomeric units, about 1 to about 3 percent trans 1,4-isomeric units and about 0.3 to about 1 percent vinyl 1,2-content; Mn ranging from about 230,000 to about 250,000 with a heterogeneity index ranging from about 1.5/1 to about 2/1, and a Tg ranging from about −104 to about −109° C.; (B) 60 to 90 phr of a solution polymerized styrene-butadiene rubber functionalized with an alkoxysilane group and a primary amine group; (C) 60 to 100 phr of silica having a CTAB of between 40 and 525 m2/g, a BET of between 45 and 550 m2/g; and (D) less than 5 phr of carbon black.
摘要:
The present invention is directed to a method for maintaining the black sidewall appearance of a tire, comprising the step of fabricating the tire with a rubber sidewall compound comprising 100 parts by weight of at least one diene based rubber; from 10 to 70 parts by weight, per 100 parts by weight of diene based rubber (phr) of a rubber process oil selected from the group consisting of aromatic, paraffinic, naphthenic, vegetable oils other than castor oil, and low PCA oils including MES, TDAE, SRAE and heavy naphthenic oils; and from 0.5 to 3 parts by weight, per 100 parts by weight of diene based rubber (phr) of a triglyceride derived from fatty acids comprising at least 80 percent by weight of at least one of ricinoleic acid and 12-hydroxy stearic acid.
摘要:
There is disclosed a pneumatic tire having a rubberized component comprising: (a) 100 parts by weight of at least one rubber containing olefinic unsaturation; and (b) 1 to 50 phr of a dendrimer.
摘要:
The invention is directed to a pneumatic tire having a rubber tread of a cap/base construction comprising an outer rubber tread cap layer containing an outer running surface and an underlying rubber tread base layer; wherein said tread cap layer comprises at least two circumferential, longitudinal rubber tread cap zones; wherein said tread cap zones individually extend from said tread cap running surface radially inward to said tread base layer; wherein said at least two tread cap zones comprises a first tread cap zone and a second tread cap zone adjacent to the first tread cap zone; the first tread cap zone and the second tread cap zone each independently comprising a vulcanizable rubber composition.
摘要:
The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, expressed as parts by weight per 100 parts by weight of elastomer (phr), (A) 30 to 70 phr of a first styrene-butadiene rubber, (B) 20 to 60 phr of a second styrene-butadiene rubber, (C) 5 to 20 phr of cis-1,4 polybutadiene having a Tg of from −110° C. to −90° C.; (D) 30 to 60 phr of processing oil; (E) 5 to 20 phr of carbon black having an Iodine absorption ranging from 130 to 210 g/kg according to ASTM D-1510 and an oil absorption ranging from 110 to 140 cc/100 g according to ASTM D-2414; (F) 80 to 130 phr of silica; (G) 0.5 to 20 phr of a sulfur containing organosilicon compound; and (H) 5 to 20 phr of resin.