Abstract:
The present invention is directed to a pneumatic tire comprising a ground contacting tread, the tread comprising a rubber composition comprising a solution polymerized styrene-butadiene rubber having a bound styrene content of at least 36 percent by weight and a vinyl 1,2 content of less than 25 percent by weight; optionally, at least one additional diene based rubber; silica; a sulfur donor; a sulfenamide accelerator; at least one secondary accelerator selected from the group consisting of guanidines, dithiocarbamates and thiurams; and an α,ω-bis(N,N′-dihydrocarbylthiocarbamamoyldithio)alkane; wherein the zinc content of the rubber composition is less than 0.5 parts by weight, per 100 parts by weight of elastomer (phr) as Zn metal.
Abstract:
The invention relates to a device (10.1) for connecting a web (25), comprising a pair of limbs (11, 12), the first two limb ends (13) being fixed to a support (30) while the remaining two limb ends (14) spring back and produce spring ends (14) for the purpose of connecting a web (25). In order to obtain a simpler and reliable connection, it is proposed that the two spring ends of the pair of limbs (11, 12) are connected to each other by means of a loop (20), the inside of the loop (24) serving to accommodate the web (25). When the web is connected, the loop (20) encompasses the cross section of the web and maintains it between its spring ends (14).
Abstract:
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 a diene based elastomer and from 1 to 30 parts by weight, per 100 parts by weight of elastomer (phr), of a polyketone short fiber having a length ranging from 0.5 to 20 mm having a weight ranging from 0.5 to 5 decitex, and from 1 to 30 phr of an epoxidized polyisoprene having a number-average molecular weight of 5000 to 100000.
Abstract:
A component (30) is to be attached by means of a plug connector (10) in a hole (53) of a base plate (50). To this end, the plug connector (10) has a shaft (15) with a flat profile. When the plug is inserted in the socket, the shaft end (20) projects out of the hole (53) on the rear side of the circuit board (52). The shaft end (20) is followed by a shaft section (13), broadened relative to the hole width (54), which has an opening (14). By means of the opening (14), the shaft section (13) is split into two legs (11, 12), which are sprung against each another and which hold the shaft (15) in the hole (53) of the circuit board (50) when the plug is inserted in the socket. To improve the holding effect, the two legs (11, 12) are constructed differently one from the other, wherein one leg (11) has a greater longitudinal extension (21) than the other (12). This means that the broadened shaft section (13) splits into a long (11) and a short leg (12). Both legs (11, 12) taper into an undercut head (40) on the shaft end (20). When the plug is inserted in the socket, the head (40) engages with the hole-edge of the circuit board (50).
Abstract:
The invention includes a siloxy-amine functionalized rubbery polymer, which exhibits good reinforcing characteristics and filler dispersing effect, a method for making, and a rubber composition including the same. In one embodiment, a process for manufacturing includes polymerizing a conjugated diene monomer using an organolithium compound as an initiator in a hydrocarbon solvent. Next, an active terminal end of the polymer is reacted with a functionalized terminating agent represented by: RN—(CH2)XSi(OR1)3, Formula (I) wherein R, in combination with the nitrogen (N) atom, is a substituted or unsubstituted heterocyclic aromatic or non-aromatic compound which includes a ring structure with one or more nitrogen atoms as part of the ring; R1 represents a group having 1 to 18 carbon atoms selected from an alkyl, a cycloalkyl, an allyl, or an aryl; and X is an integer from 1 to 20.
Abstract:
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 a diene based elastomer and from 1 to 100 parts by weight, per 100 parts by weight of elastomer of a polymer nanofiber having a thickness ranging from 20 to 200 nm.
Abstract:
A pneumatic runflat tire including at least one sidewall insert, the at least one sidewall insert including a heterogenous rubber compound comprising first rubber and second rubber composition phases, wherein the second rubber phase is further vulcanizable.
Abstract:
The invention is directed to a process for the production of a pneumatic tire comprising a component comprising a rubber composition, wherein the rubber composition comprises 100 parts by weight of elastomer and is produced by (A) mixing a first composition comprising 30 to 110 phr of a silica filler and 20 to 90 phr of a diene based elastomer selected from cis 1,4-polyisoprene rubber (natural or synthetic), 3,4-polyisoprene rubber, styrene/isoprene/butadiene rubber, emulsion and solution polymerization derived styrene/butadiene rubbers, and cis 1,4-polybutadiene rubbers, to form a first nonproductive compound; (B) mixing a second composition comprising from 10 to 80 phr of a rubber containing a nitrile moiety and the first productive compound to form a second nonproductive compound; and (C) mixing a third composition comprising curatives and the second nonproductive compound to form a productive compound.
Abstract:
A pneumatic tire including a circumferential tread, two spaced apart beads, and sidewalls connecting said beads and tread, wherein said tire sidewall contains at least one internal annular sidewall insert including at least two annular segments, the at least two annular segments including first and second adjacent annular segments; wherein said first and second annular segments are disposed with an interface therebetween; wherein each of the at least two annular segments includes a rubber composition comprising at least one diene based rubber and at least one vulcanization modifier selected from the group consisting of α,ω-bis(N,N′-dihydrocarbylthiocarbamamoyldithio)alkanes, bismaleimides, and biscitraconimides; and wherein the concentration of vulcanization modifier in the first annular segment is less than the concentration of vulcanization modifier in the second annular segment.