Provided herein are mycelium materials and methods for production thereof. In some embodiments, a mycelium material includes: a cultivated mycelium material including one or more masses of branching hyphae, wherein the one or more masses of branching hyphae may be disrupted or pressed and/or a bonding agent may be combined with the cultivated mycelium material. Methods of producing a mycelium material are also provided.

A method for producing a rubber wet masterbatch, the method including: adding a rubber latex solution to a carbon black-containing slurry aqueous solution in which a carbon black is dispersed in water and mixing the solutions to produce a carbon black-containing rubber latex aqueous solution; coagulating the carbon black-containing rubber latex aqueous solution obtained to produce a carbon black-containing rubber coagulum; cleaning the carbon black-containing rubber coagulum obtained to produce a cleaned carbon black-containing rubber coagulum; and dehydrating and drying the cleaned carbon black-containing rubber coagulum obtained to produce a rubber wet masterbatch, wherein an amount of an acetone extract from the cleaned carbon black-containing rubber coagulum is 2% by mass or less after drying the coagulum at 23° C. for 24 hours and further at 90° C. for 2 hours. Vulcanized rubber having excellent low exothermicity and excellent abrasion resistance can be obtained by the method.

The present disclosure provides compositions and products formed therefrom. In particular, the disclosure provides elastomeric latex articles, such as gloves and condoms, that can be prepared utilizing a styrene-polyisoprene-styrene (SIS) latex. The elastomeric articles can exhibit desired tensile properties while being substantially or completely free of undesired components, such as sulfur and zinc oxide, which can be allergens. The disclosure further provides methods of preparing elastomeric latex articles.

A method for producing a rubber wet masterbatch including: a step (I) of putting a rubber latex solution into a carbon black-containing slurry aqueous solution in which a carbon black is dispersed in water, without stirring the carbon black-containing slurry aqueous solution, to prepare an unmixed aqueous solution; a step (II) of mixing the unmixed aqueous solution obtained and a coagulant while the coagulant is added to the unmixed aqueous solution to produce a carbon black-containing rubber coagulum; and a step (III) of dehydrating and drying the carbon black-containing rubber coagulum obtained to produce a rubber wet masterbatch, wherein in the step (II), the coagulant is added at an addition rate of 1.5×10.sup.−2 (mmol/min) or less per 100 g of a rubber component contained in the unmixed aqueous solution. By the method for producing a rubber wet masterbatch, vulcanized rubber having an excellent tensile product can be obtained.

The present invention provides a pneumatic tire having excellent fuel efficiency, handling stability, and ride quality while maintaining a good balance between them. Provided is a pneumatic tire including a tire component formed from a rubber composition, the rubber composition having cured rubber properties satisfying predetermined values.

A method for manufacturing wet rubber masterbatch obtained from raw materials in the form of at least filler, dispersion solvent, and rubber latex solution, includes an operation in which the rubber latex solution is mixed and coagulated with a slurry solution containing the filler and the dispersion solvent to manufacture a filler-containing rubber coagulum; and a heating operation in which a single-screw extruder is used to carry out dewatering, drying, and plasticization of the filler-containing rubber coagulum in a single operation. The method satisfies conditions: 0.02≤C/(A×B)≤0.15, where A indicates, for a portion of the screw which is located at the dewatering portion, the pitch volume (mm.sup.3), B indicates rotational speed (rpm) of the screw, and C indicates feed volume per minute (mm.sup.3/min) of the filler-containing rubber coagulum which is fed into the single-screw extruder.

Provided herein are mycelium materials and methods for production thereof. In some embodiments, a mycelium material includes: a cultivated mycelium material including one or more masses of branching hyphae, wherein the one or more masses of branching hyphae may be disrupted or pressed and/or a bonding agent may be combined with the cultivated mycelium material. Methods of producing a mycelium material are also provided.

Methods to make a silica elastomer composite with a destabilized dispersion of silica are described, along with silica elastomer composites made from the methods. The advantages achieved with the methods are further described.

The present invention relates to a plug comprising a porous material. These plugs can be used for sealing a puncture in a tyre. These plugs can allow a consumer to quickly and effectively seal a puncture.

A method for producing a rubber wet masterbatch comprises step (i) of producing a slurry solution by dispersing carbon black in a dispersing solvent in the presence of an inorganic filler, step (ii) of producing a slurry-containing rubber latex solution by mixing the slurry solution with a rubber latex solution, and step (iii) of producing a rubber wet masterbatch by solidifying and drying the slurry-containing rubber latex solution. The inorganic filler has a Mohs hardness of 5 or more, and in the step (i), the amount of the inorganic filler added is less than 50% by mass where the amount of the carbon black added is 100% by mass.