Abstract: The subject invention discloses a tire (1) having at least one sipe pattern comprising, in the circumferential direction of the tire (1), one or more straight sipes (15) and two or more inclined sipes (17, 19, 37, 39); wherein at least one straight sipe (15) is arranged between two or more inclined sipes (17, 19, 37, 39).

Abstract: The subject invention discloses a tire (1) having at least one sipe pattern comprising, in the circumferential direction of the tire (1), one or more straight sipes (15) and two or more inclined sipes (17, 19, 37, 39); wherein at least one straight sipe (15) is arranged between two or more inclined sipes (17, 19, 37, 39).

Abstract: A stud is inserted into a tread portion of a tire. The first stud includes a tip end protruding from the tread portion for contacting a surface, the tip end comprising a radially outer portion with a first surface, a second surface, a third surface, a fourth surface, a fifth surface, a sixth surface, and a seventh surface, the first surface defining an irregular quadrilateral and extending radially inward from the fourth surface toward a planar side of the tip end; and a base including a flanged bottom portion provided on an end opposite the tip end and extending radially outward, a stump portion provided between the bottom portion and the tip end, and a shank portion interconnecting the stump portion and the bottom portion, the base being embedded and secured in the tread portion of the tire in which the first stud is installed, the bottom portion having a tear-drop shape comprising three planar sides and one semi-cylindrical side.

Abstract: In a first aspect of the invention, an anti-skid tire stud is provided, the stud having a body made of polymer-based material, wherein the stud body comprises a top portion comprising polymer-based material having a first color, a bottom portion comprising polymer-based material having a second color, and wherein the stud further comprises a pin extending out of the top portion for contacting the road. In a second aspect of the invention, the invention relates to a tire comprising such anti-skid tire studs.

Abstract: A stud is inserted into a tread portion of a tire. The first stud includes a tip end protruding from the tread portion for contacting a surface, the tip end comprising a radially outer portion with a first surface, a second surface, a third surface, a fourth surface, a fifth surface, a sixth surface, and a seventh surface, the first surface defining an irregular quadrilateral and extending radially inward from the fourth surface toward a planar side of the tip end; and a base including a flanged bottom portion provided on an end opposite the tip end and extending radially outward, a stump portion provided between the bottom portion and the tip end, and a shank portion interconnecting the stump portion and the bottom portion, the base being embedded and secured in the tread portion of the tire in which the first stud is installed, the bottom portion having a tear-drop shape comprising three planar sides and one semi-cylindrical side.

Abstract: 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.