This invention relates to a composition which is suitable for use in the vulcanization of the rubber. The composition is a non-aqueous water soluble polymer based composition comprising a cationic silicate component. The composition may further include a second cationic additive component which is desirable in a rubber vulcanization process. The invention further relates to a method for preparing these compositions.

Methods for producing a cross-linkable rubber composition that comprises a masterbatch are disclosed. The masterbatch comprising a base masterbatch and the method includes forming the base masterbatch by adding a diene rubber to an internal mixer; adding a total quantity of a solid agglomerated material that includes carbon nanotubes into the mixing chamber; and mixing the diene elastomer and the solid agglomerated material. To ensure adequate distribution and dispersion of the material, the base masterbatch has a minimum Mooney viscosity ML(1+4)100 of at least 85 MU.

A conjugated diene polymer containing at least conjugated diene monomer units, wherein the conjugated diene polymer has a molecular weight distribution curve obtained by GPC measurement where three or more peaks are present, and the peak top molecular weight of a finally detected peak (Z) is 80000 to 250000, and a polymer chain corresponding to a maximum peak (L) has a degree of adsorption onto silica of less than 40% where in the molecular weight distribution curve, the last detected peak in the GPC measurement is defined as the finally detected peak (Z), and a peak having the largest peak area among peaks excluding the finally detected peak (Z) is defined as the maximum peak (L).

Disclosed herein are polysaccharide-elastomer masterbatch compositions and processes for preparing the masterbatch compositions. One method comprises a step of a) mixing i) an aqueous polysaccharide dispersion, or ii) a basic aqueous polysaccharide solution, with a rubber latex solution containing a rubber component to form a mixture. The method further comprises the steps of: b) coagulating the mixture obtained in step a) to produce a coagulated mass; and c) drying the coagulated mass obtained in step b). The masterbatch compositions are useful in preparing rubber-containing articles.

An embodiment of the present invention provides a rubber composition for tires and a method for producing same, wherein the rubber composition for tires includes: carbon nanotubes including structural defects on at least a portion of the surface and having a thermal decomposition temperature equal to or less than 600° C.; and a rubber matrix.

This invention discloses a reticulated film composite and a method of fabricating the reticulated film composite suitable as a separator in electrochemical cells as sound absorbing films, or as high efficiency filtering media. The reticulated film composite is produced by casting and drying of a slurry which exhibits a high yield stress (i.e. greater than 50 dyne/cm2) and comprised of a high MW resin dissolved in a solvent (i.e. having solution viscosity of higher than 100 cp at 5% in NMP or in water at room temperature) and dispersed nanoparticles with high specific surface areas (i.e. greater than 10 m2/g) such as fumed alumina, or fumed silica, or fumed zirconia or mixture thereof. This reticulated film composite exhibits superior cycling properties and high ionic conductivity with a porosity up to 80% while maintains a high dimensional stability (i.e. less than 10% shrinking) at elevated temperatures (up to 140° C.). The reticulated composite separator coating can be used in combination with an electrode coating either in two separate process steps, or in a one-step process by having a simulations multi-layer casting of electrode and separator to manufacture a lithium ion battery.

Crumb rubber obtained from recycled tires is subjected to an interlinked substitution process. The process utilizes a reactive component that interferes with sulfur bonds. The resulting treated rubber exhibits properties similar to those of the virgin composite rubber structure prior to being granulated, and is suitable for use in fabricating new tires, engineered rubber articles, and asphalt rubber for use in waterproofing and paving applications.

The present disclosure provides ethanol comprising an inorganic component and/or an organic component. The inorganic component may contain at least one component selected from the group consisting of: silicon having a content of 10 mg/L or more and 100 mg/L or less; chromium having a content of 0.6 mg/L or less; iron having a content of 2.0 mg/L or less; sodium having a content of 150 mg/L or more and 1000 mg/L or less; and potassium having a content of 1.0 mg/L or more and 10 mg/L or less. The organic component may contain at least one component selected from the group consisting of: aliphatic hydrocarbon having a content of 0.16 mg/L or more and 10 mg/L or less; aromatic hydrocarbon having a content of 0.4 mg/L or more and 10 mg/L or less; and dialkyl ether having a content of 0.1 mg/L or more and 100 mg/L or less.

A polymer composition includes a conjugated diene polymer (A) and a compound (B). The compound (B) is at least one compound selected from the group consisting of a polysiloxane compound and a fluorine-containing compound. The conjugated diene polymer (A) contains, when the composition ratios (molar ratios) in the polymer of the structural units represented by formulas (1) to (4) are p, q, r, and s, respectively, a polymer (A-1) satisfying formula (i).

0.75≤(p+(0.5×r))/(p+q+(0.5×r)+s)≤0.95  Formula (i):

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A rubber foam for a shoe sole is composed of a rubber composition for foaming containing a rubber composition and a foaming agent, the rubber foam having (i) a loss factor tan δ (24° C.) at a frequency of 10 Hz and 24° C. that is 0.07 or less and (ii) an absolute value of a slope of a change in loss factor tan δ with temperature between a loss factor tan δ (−15° C.) at the frequency of 10 Hz and −15° C. and the loss factor tan δ (24° C.) at the frequency of 10 Hz and 24° C., as calculated by the following equation, that is 0.002 or less:

the absolute value of the slope of the change in tan δ with temperature=|[tan δ (−15° C.)−tan δ (24° C.)]/39|.