Abstract:
There is described a toothed belt (1) comprising an elastomeric material body (2), in which a plurality of longitudinal filiform resistant inserts (3) is embedded, and a toothing (4) coated by a coating fabric (5). A resistant layer (8) that increases the resistance to abrasion and thus the resistance to wear of the toothed belt is adhered over the coating fabric (5). The. resistant layer comprises a vulcanisation agent and more than 75% of an elastomer formed by at least one copolymer modified with an unsaturated carboxylic acid salt and obtained from a dien monomer and a nitrile group -containing monomer. The resistant layer (8) is advantageously separated from the fabric and is calendered on the fabric itself.
Abstract:
A process for the production of reinforcement polyester cords for rubbers, characterized in that adhesiveness to rubber is imparted to a polyester fibrous material by treating the material with a combination of four treatment fluids, i.e., (A) a treatment fluid containing a carrier, (B) an aqueous solution of a blocked isocyanate, (C) a dispersion of an epoxy compound, and (D) a resorcinol/formaldehyde/latex (RFL) mixed fluid, with the proviso that the material is treated with the first treatment fluid containing at least the fluid (A) and then with the second treatment fluid containing at least the mixed fluid (D), and subjecting the treated material to heat treatment under a normalizing tension adjusted to 0.2cN/dtex or above. The reinforcement polyester cords have high elastic moduli and are remarkably improved in the adhesiveness after thermal aging and tenacity retention as determined after long-time exposure to high temperature in rubber, thus being suitable for tire cap plies.
Abstract:
Aspects of the invention are found in a heating component having a composite material coated on a support. The composite material includes a fluorinated or silicone polymer and inductively-heatable particles. Additional aspects of the invention are found in a heating belt having a flexible support coated with a composite material. The composite material includes a polymer material and inductively-heatable particles. Further aspects of the invention are found in a system for heating an article. The system includes a heating belt and a field generator. The heating belt includes a flexible support coated in a composite material. The composite material includes a polymeric matrix and inductively-heatable particles. The field generator induces a field about the heating belt. The inductively-heatable particles heat in the presence of the field.
Abstract:
The invention relates to a transfer strip (10) of a wet press that comprises an extended press nip for drying a web of paper. Said strip consists of an especially woven or knitted support strip (11) and a substantially polymeric fiber structure (12) that is needled onto the support strip as a felt-like structure and comprises fusible fibers. At least portions of said fiber structure are converted to a fairly water-impermeable polymer layer (14) by way of a thermomechanical process. The support strip further comprises a filamentous surface layer that is applied on the polymer layer.