Abstract:
A woven rope an inner portion comprising a plurality of multifilament fibers in the length direction of the woven rope and a jacket portion covering the inner portion. The jacket portion contains a plurality of monofilament fibers in the length direction of the woven rope and at least one multifilament fiber in the circumferential direction interwoven with the monofilament fibers in the length direction of the jacket portion. The monofilament fibers of the jacket portion form the majority of the outer surface of the woven rope.
Abstract:
In order that spaces, including a space in the central portion, inside a steel cord used as a reinforcement by being embedded in a tire or the like are filled with an uncured rubber, the uncured rubber is coated on plural steel core filaments which are then stranded to form a single layer steel cord, the core then being stranded with uncoated outer layer filaments. Consequently, it is possible to exhibit satisfactory corrosion resistance and satisfactory fatigue resistance as a steel cord, shorten a curing time in tire component assembling or the like to attain energy saving and prolong the life of a steel cord itself and the life of a tire or the like using the same as a reinforcement. Further, production can be performed at low cost.
Abstract:
The invention relates to a high strength fibers comprising a coating of cross-linked silicone polymer, and ropes made thereof. The fibers are preferably high performance polyethylene (HPPE) fibers. The coating comprising a cross-linked silicone polymer is made from a coating composition comprising a cross-linkable silicone polymer. The rope shows markedly improved service life performance in bending applications such as cyclic bend-over-sheave applications. The invention also relates to the use of a cross-linked silicone polymer in a rope for an improvement of bend fatigue resistance.
Abstract:
Composite reinforcement (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a tire, having one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example 6,6 polyamide, covering the thread or the threads; and a second layer (22) having a functionalized unsaturated thermoplastic styrene elastomer, the glass transition temperature of which is negative, for example an epoxidized SBS elastomer, covering the first layer (21), the elastomer containing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.
Abstract:
Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as reinforcing element for a tire, having one or more reinforcing thread(s) (20); a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive covering individually the thread or several threads; a second layer (22) of a composition having a poly(p-phenylene ether) (“PPE”) and a functionalized unsaturated thermoplastic styrene (“TPS”) elastomer, the glass transition temperature of which is negative, the elastomer bearing functional groups selected from epoxide, carboxyl, acid anhydride and acid ester groups, in particular an epoxidized SBS elastomer, covering the first layer (21). Process for manufacturing a composite reinforcer and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcer.
Abstract:
Composite reinforcement (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a tire, comprising: one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example 6,6 polyamide, covering said thread or said threads; and a second layer (22) comprising a functionalized unsaturated thermoplastic stirene elastomer, the glass transition temperature of which is negative, for example an epoxidized SBS elastomer, covering the first layer (21), said elastomer containing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.
Abstract:
Compositions and methods for treating metal substrates and/or bonding metal substrates to polymeric materials, such as rubber, are provided. The compositions include at least one substantially hydrolyzed amino silane and at least one substantially hydrolyzed sulfur-containing silane Optionally, the compositions include a nano-size particulate material. The compositions provide coatings on metal substrates for protecting the metal from corrosion and for adhering rubber-like polymeric compositions to the metal with polymer-to-metal vulcanization conditions less dependent on the coating thickness, and with use of less coating materials.
Abstract:
Organofunctional silanes are applied to metal surfaces using an oil bath. Metal is immersed in an oil bath containing approximately 2% silane and an oil dispersible hygroscopic liquid, such as glycerol. In one embodiment, the metal is a tire cord. Water vapor entrained in a carrier gas can also be bubbled into the oil silane bath.
Abstract:
A rope comprising a plurality of high tenacity polyolefin yarns aligned in a substantially uniaxial direction along the length of the rope. The rope yarns are substantially untwisted and are substantially parallel to each other. The yarns are formed from a plurality of fibers aligned in a substantially uniaxial direction along the length of the yarns, with the fibers being substantially untwisted and being substantially parallel to each other. The fibers comprise high tenacity polyolefin fibers. Adjacent yarns are connected together by contact of their respective resin surface coatings.
Abstract:
A method of depositing a solute (34) on a metal thread (4), comprising the steps of: depositing a liquid solution (3), formed from a volatile solvent and said solute (34), on the thread (4); and then rapidly raising the temperature of the thread (4) to a temperature above the vaporization temperature of the solvent so as to vaporize the solvent placed in contact with the surface of said thread (4) and to form vapour bubbles (32) which, by expanding, generate a pressure pulse that ejects the liquid (33) remaining on the periphery of the thread.