Dandelion processes, compositions and products are provided. One process is a method of preparing dandelion that utilizes a species of a Taraxacum genus, the process including the steps of extracting and recovering a rubber and a carbohydrate from a dandelion root substantially simultaneously. The process employs a dandelion species that is selected from the group consisting of: Taraxacum officianale, Taraxacum kok-saghyz, a rubber-bearing species of the genus Taraxacum, and a combination of two or more thereof. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

Disclosed herein are process for increasing the molecular weight of guayule natural rubber that is solubilized in an organic solvent solution. The processes utilize shear desolventizing to achieve the increase in molecular weight.

Disclosed herein are process for increasing the molecular weight of guayule natural rubber that is solubilized in an organic solvent solution. The processes utilize shear desolventizing to achieve the increase in molecular weight.

The invention relates to a rubber composition based on at least one diene elastomer, a filler comprising at least carbon black and an inorganic filler with an inorganic filler content of less than or equal to 50 parts by weight per hundred parts of elastomer, phr, and also a crosslinking system.

The invention relates to a rubber composition based on at least one diene elastomer, a filler comprising at least carbon black and an inorganic filler with an inorganic filler content of less than or equal to 50 parts by weight per hundred parts of elastomer, phr, and also a crosslinking system.

A method for preparing a heavy-duty tire with a natural rubber (NR) modified by graphene/carbon blacks varying in particle size synergized with a vulcanization system is provided. Carbon blacks varying in particle size are subjected to surface modification to obtain an graphene oxide/carbon blacks varying in particle size aqueous dispersion. Subsequently, a graphene oxide/carbon blacks varying in particle size modified NR masterbatch is prepared using an aqueous-phase synergistic aggregating precipitating process. Finally, a natural rubber heavy-duty tire is prepared from graphene/carbon blacks varying in particle size synergistically vulcanized modified natural rubber through a molding process. Compounding of graphene with the carbon blacks varying in particle size is utilized to improve dispersion of reinforcing fillers within the rubber matrix. Adjustment of a ratio of a vulcanizing agent to an accelerator is utilized to regulate a cross-linked network structure of the rubber.

A method for preparing a heavy-duty tire with a natural rubber (NR) modified by graphene/carbon blacks varying in particle size synergized with a vulcanization system is provided. Carbon blacks varying in particle size are subjected to surface modification to obtain an graphene oxide/carbon blacks varying in particle size aqueous dispersion. Subsequently, a graphene oxide/carbon blacks varying in particle size modified NR masterbatch is prepared using an aqueous-phase synergistic aggregating precipitating process. Finally, a natural rubber heavy-duty tire is prepared from graphene/carbon blacks varying in particle size synergistically vulcanized modified natural rubber through a molding process. Compounding of graphene with the carbon blacks varying in particle size is utilized to improve dispersion of reinforcing fillers within the rubber matrix. Adjustment of a ratio of a vulcanizing agent to an accelerator is utilized to regulate a cross-linked network structure of the rubber.