Abstract:
An improved rope is formed from high tenacity fibers, preferably a blend of high tenacity polyethylene fibers with aramid fibers and/or liquid crystal copolyester fibers. The fibers and/or the rope are coated with a composition comprising an amino functional silicone resin and a neutralized low molecular weight polyethylene. The ropes are useful in marine applications, such as in deep sea lifting, and have improved cyclic bend over sheave fatigue resistance.
Abstract:
An improved rope is formed from high tenacity polyolefin fibers, such as extended chain polyethylene fibers. The fibers and/or the rope are coated with a composition comprising an amino functional silicone resin and a neutralized low molecular weight polyethylene. The ropes are useful in marine applications, such as in deep sea lifting. The ropes have improved cyclic bend over sheave fatigue resistance.
Abstract:
A steel cord-rubber composite is provided, that has improved initial adhesion property and adhesion property against aging between the steel cord and the rubber composition with improved manufacturing cost efficiency. A steel cord-rubber composition composite includes a coating layer and a steel cord, and the coating layer includes an inner coating layer formed of a rubber composition containing a rubber component, a cobalt compound and sulfur and directly covering the steel cord, and an outer coating layer formed of a rubber composition of which contents of cobalt compound and sulfur are smaller than those of the inner coating layer and coating the outer portion of the inner coating layer.
Abstract:
The invention relates to a composite cord (10) for reinforcement of elastomers comprising a core (12) of a high polymer material, a first layer of steel filaments (14) twisted around said core and a second layer of steel filaments (16) twisted around said first layer. The polymer material is present in a sufficient volume to create gaps between adjacent filaments of the first layer and possibly also between the filaments of the second layer. The composite cord is characterized by a decreased fretting of the steel filaments.
Abstract:
A composite abrasive filament, including at least one preformed core at least partially coated with a hardened, abrasive-filled thermoplastic elastomer, exhibits increased abrading life over previously known abrasive filaments. Also disclosed are methods of making such filaments and using such filaments in article form to abrade a variety of workpieces.
Abstract:
An apparatus and method for extruding a thin uniform coating of fluent plastic material about a continuously advancing strand wherein the fluent plastic material is directed radially toward the strand through a constricted annular feed passage. The strand with the fluent plastic material adhering thereto is then advanced through a passageway conically converging to an exit end and effective to develop hydrodynamic pressure forces which center the strand within the passageway.
Abstract:
Brass coated steel tire cord is treated with solid or molten benzotriazole and/or other treatment agents to promote corrosion resistance and cord to rubber adhesion retention.
Abstract:
1. A PROCESS FOR MANUFACTURING STEEL CORD REINFORCED RUBBER COMPRISING: COATING STEEL CORD WITH A SOLUTION COMPRISING A MINERAL OIL AND AN ORGANIC ACID SALT OF A HIGHER ALIPHATIC AMINE, SAID SALT BEING PRESENT IN AN AMOUNT EFFECTIVE TO PROMOTE ADHESIION BETWEEN THE STEEL CORD AND RUBBER; FORMING A COMPOSITE BODY OF SAID COATED STEEL CORD AND RUBBER; AND VULCANIZING SAID COMPOSITE.
Abstract:
A composite reinforcer that can adhere directly to a diene rubber matrix is usable as a reinforcing element for a pneumatic tire. The composite reinforcer includes at least one reinforcing thread, such as a carbon steel cord. Covering each thread individually or several threads collectively is a layer of a thermoplastic polymer composition. The thermoplastic polymer composition includes at least one thermoplastic polymer have a glass transition temperature that is positive, a poly(p-phenylene ether) (PPE), and a functionalized unsaturated thermoplastic styrene (TPS) elastomer having a glass transition temperature that is negative. The TPS elastomer includes a functional group selected from: an epoxide group, a carboxyl group, an acid anhydride group, and an ester group. A process for manufacturing such a composite reinforcer is presented, as well as a process for producing a rubber article, especially a pneumatic 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: at least one reinforcing thread (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; and a second layer (22) comprising an unsaturated thermoplastic stirene elastomer, the glass transition temperature of which is negative, for example an SBS (stirene-butadiene-stirene) copolymer, covering the first layer (21). Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.