A method of making an electrically conductive and weatherproof enclosure includes mixing and melting an electrically conductive material, a latex rubber material, and a polycarbonate material to produce a weatherproof material mixture, blending carbon black with polyethylene to produce an electrically conductive additive, positioning an injection mold of the enclosure in fluid communication with an exit end of a heating barrel, injecting the weatherproof material mixture into an entry end of the heating barrel, introducing the electrically conductive additive through a lateral port of the heating barrel proximate to the exit end to partially mix with the weatherproof material mixture to produce an injection mixture, and injecting the injection mixture into the injection mold to produce the electrically conductive and weatherproof enclosure.

A method of making an electrically conductive and weatherproof enclosure includes mixing and melting an electrically conductive material, a latex rubber material, and a polycarbonate material to produce a weatherproof material mixture, blending carbon black with polyethylene to produce an electrically conductive additive, positioning an injection mold of the enclosure in fluid communication with an exit end of a heating barrel, injecting the weatherproof material mixture into an entry end of the heating barrel, introducing the electrically conductive additive through a lateral port of the heating barrel proximate to the exit end to partially mix with the weatherproof material mixture to produce an injection mixture, and injecting the injection mixture into the injection mold to produce the electrically conductive and weatherproof enclosure.

A method for concentrating rubber emulsion and a product prepared by the method are provided, the method includes: a concentrated latex is obtained by separating a superabsorbent resin added in advance into a rubber emulsion with a solid content of 0.01-70% after stirring and concentrating the resin-added rubber emulsion. The method requires simple equipment and consumes less energy, and the prepared polymer emulsion has a solid content up to 76%; the superabsorbent resin adopted herein is reusable after drying, which therefore effectively reduces the production cost; natural latex concentrated by the method has rather high yields of dry rubber and little wastewater production; products prepared from the concentrated natural latex have excellent mechanical property, aging resistance and adhesive property; and concentrating natural latex according to this method does not require advance agglomeration, which reduces the production procedures and improves the production efficiency significantly.

The present invention provides a composite that has good initial adhesion and good adhesion after high temperature and high humidity aging. Provided is a composite including: a topping rubber composition having a fatty acid content of 0.8% by mass or less; and an adherend plated with a copper-containing layer.

The present invention provides a composite that has good initial adhesion and good adhesion after high temperature and high humidity aging. Provided is a composite including: a topping rubber composition having a fatty acid content of 0.8% by mass or less; and an adherend plated with a copper-containing layer.

The invention relates to a rubber composition based on at least one elastomeric matrix comprising at least one diene elastomer, at least one reinforcing filler predominantly comprising carbon black and at least one reinforcing inorganic filler, at least one plasticizing resin having a glass transition temperature of greater than or equal to 20° C., at least one cobalt salt and at least one sulfur vulcanization system, said rubber composition exhibiting a Z score for dispersion of the reinforcing filler in the elastomeric matrix of greater than or equal to 85. The invention also relates to a reinforced product comprises at least one steel reinforcing element coated at least in part with a metallic coating and the rubber composition defined above, said reinforcing element being embedded in said rubber composition. The present invention also relates to a tyre comprising this composition and/or this reinforced product.

The invention relates to a rubber composition based on at least one elastomeric matrix comprising at least one diene elastomer, at least one reinforcing filler predominantly comprising carbon black and at least one reinforcing inorganic filler, at least one plasticizing resin having a glass transition temperature of greater than or equal to 20° C., at least one cobalt salt and at least one sulfur vulcanization system, said rubber composition exhibiting a Z score for dispersion of the reinforcing filler in the elastomeric matrix of greater than or equal to 85. The invention also relates to a reinforced product comprises at least one steel reinforcing element coated at least in part with a metallic coating and the rubber composition defined above, said reinforcing element being embedded in said rubber composition. The present invention also relates to a tyre comprising this composition and/or this reinforced product.

The invention relates to a rubber composition based on at least one elastomeric matrix comprising at least one diene elastomer, at least one reinforcing filler predominantly comprising carbon black and at least one reinforcing inorganic filler, at least one plasticizing resin having a glass transition temperature of greater than or equal to 20° C., at least one cobalt salt and at least one sulfur vulcanization system, said rubber composition exhibiting a Z score for dispersion of the reinforcing filler in the elastomeric matrix of greater than or equal to 85. The invention also relates to a reinforced product comprises at least one steel reinforcing element coated at least in part with a metallic coating and the rubber composition defined above, said reinforcing element being embedded in said rubber composition. The present invention also relates to a tyre comprising this composition and/or this reinforced product.

Provided are a polymer material that contributes to environmental protection, has biodegradability, has excellent well-balanced mechanical properties, self-adhesion, and the like, is flexible, and has a reduced variation in the properties. The present invention provides a biodegradable rubber composition comprising natural rubber and an inorganic substance powder in a mass ratio of 45:55 to 10:90, and modified cellulose in an amount of 0.5 part by mass to 10.0 parts by mass relative to 100 parts by mass of the natural rubber.

Provided are a polymer material that contributes to environmental protection, has biodegradability, has excellent well-balanced mechanical properties, self-adhesion, and the like, is flexible, and has a reduced variation in the properties. The present invention provides a biodegradable rubber composition comprising natural rubber and an inorganic substance powder in a mass ratio of 45:55 to 10:90, and modified cellulose in an amount of 0.5 part by mass to 10.0 parts by mass relative to 100 parts by mass of the natural rubber.