B60C9/005

Hybrid cord for use as reinforcement in a belt bandage of a pneumatic vehicle tire

The invention relates to a hybrid cord for use as a reinforcement in a belt bandage of a pneumatic vehicle tire, consisting of at least two threads with ends which are twisted together. At least one first thread is a high-modulus thread with a specified thread fineness, and another thread is a low-modulus thread, said other low-modulus thread having a lower thread fineness than the first thread. The invention is characterized in that the proportion of the high-modulus thread in the hybrid cord is 80-95 wt. %; the difference between the thread fineness of the high-modulus thread and the thread fineness of the other low-modulus thread is >800 dtex; and the elongation at break of the high-modulus thread ranges from 1%-8%, and the elongation at break of the low-modulus thread ranges from 9%-30%.

AIRCRAFT TIRE

An aircraft tire having improved wear properties is provided. The tire includes a belt reinforcement structure that provides a flatter crown and reduces localized tensions. The belt reinforcement structure includes at least four hybrid belt plies having free ends that are positioned radially inward of at least one non-hybrid belt ply. The hybrid belt plies allow for reductions in the overall mass of the tire and improved thermal properties while still meeting requirements for burst pressure and size for aircraft tires.

Pneumatic Vehicle Tires Comprising a Belt Bandage
20170246913 · 2017-08-31 · ·

Pneumatic vehicle tyres which have a bandage ply (8) comprising two lateral portions (10) and a center portion (12) in the axial extension, wherein each lateral portion (10) has at least one hybrid reinforcement, and wherein the center portion (12) has at least one reinforcement which has a lower modulus of elasticity than the hybrid reinforcements of the lateral portions (10), in each case measured as per ASTM D885M at an elongation of 3%. It is the object of the invention to provide a tyre with reduced rolling resistance and good high-speed characteristics with reliable producibility. This is achieved in that the hybrid reinforcement is a hybrid cord made of at least one low-modulus thread and one high-modulus thread twisted together, and in that the hybrid reinforcement has a fineness of at most 550 dtex, preferably at most 500 dtex, particularly preferably at most 460 dtex, and in that the reinforcement of the center portion (12) has a fineness of at most 1100 dtex, preferably at most 600 dtex, particularly preferably at most 500 dtex.

HYBRID TIRE CORD AND METHOD FOR MANUFACTURING THEREOF
20220307162 · 2022-09-29 ·

The present disclosure relates to a method for manufacturing a hybrid tire cord that utilizes a difference in fineness, and thereby can be more easily manufactured in a form covered with aramid, has uniform physical properties, and improves tire performance.

TIRE
20170320359 · 2017-11-09 ·

A tire including a circular tire frame formed from a resinous material, the resinous material including a thermoplastic elastomer including a hard segment, a soft segment, and a connection portion that connects two or more segments, wherein a difference in SP value, in absolute value, between the soft segment and the connection portion is 7.7 or less.

AIRCRAFT TIRE

An aircraft tire having improved wear properties is provided. The tire includes a belt reinforcement structure (128) that provides a flatter crown and reduces localized tensions. The belt reinforcement structure includes at least two hybrid belt plies (130,132) having free ends that are positioned radially inward of at least one non-hybrid belt ply (134,136). The hybrid belt plies allow for reductions in the overall mass of the tire and improved thermal properties while still meeting requirements for burst pressure and size for aircraft tires.

CORD FABRIC FOR TIRE REINFORCEMENT

A tire reinforcement fabric is woven with predipped and heat-set single cords as warp bound together with weft materials, and a pneumatic tire includes a tire reinforcement fabric. The tire reinforcement fabric is obtained by weaving individually dipped cords as warp material and a plurality of any kind of weft materials.

CORD FOR ELASTOMER REINFORCEMENT USE
20210394560 · 2021-12-23 · ·

Provided is an elastomer reinforcement cord with improved rust inhibition. An elastomer reinforcement cord (10) includes metal filaments and a polymer material. The elastomer reinforcement cord (10) has a multi-strand structure which includes: at least one core strand (21) formed by twisting plural metal filaments (1a) and (1b) together; and two or more sheath strands (22) each formed by twisting plural metal filaments (11a) and (11b) together, and in which the sheath strands are twisted together around the core strand. In a region surrounded by a line connecting the centers of the metal filaments constituting the outermost sheath layer of the core strand at a cross-section in a direction orthogonal to an axial direction after vulcanization of the core strand, when a region occupied by other than the metal filaments is defined as a gap region, a filling rate, which is a ratio of the area of the polymer material with respect to the gap region, is 52% to 120%.

ELASTOMER REINFORCEMENT CORD
20210395947 · 2021-12-23 · ·

Provided is an elastomer reinforcement cord in which the problem of stress concentration at an interface between an elastomer and a metal cord is solved and the durability is thereby improved. The elastomer reinforcement cord includes metal filaments (1a) and (1b), and a polymer material (3) having a melting point or softening point of 80° C. to 160° C. The elastomer reinforcement cord has a core (11) and at least one sheath layer (12). In a region surrounded by a line connecting the centers of the metal filaments constituting the outermost sheath layer at a cross-section in a direction orthogonal to an axial direction after vulcanization, when a region occupied by other than the metal filaments is defined as a gap region, the polymer material is contained in this gap region, and a filling rate, which is a ratio of the area of the polymer material, is higher than 120%, taking the area of the gap region as 100%.

METHOD FOR PRODUCING A REINFORCING MATERIAL AND REINFORCING MATERIAL

The invention relates to a method for producing a reinforcement material in the form of a core-shell structure, in particular of a tyre cord, wherein there is provided in a step a core having linear arrangements, in particular a cord-like core, wherein the linear arrangements have segments that are coupled to one another in a linear way by means of strength-increasing segment couplings, and wherein in a further step the core is provided with a shell by forming a core-shell coupling that increases adhesion, wherein segment couplings that are near to the surface are converted for the core-shell coupling.