The present invention relates to an integrated process for processing and utilising every part of the guayule plant (Parthenium argentatum) which comprises the following steps in sequence: separating the stem and branches (3) from the leaves (2) of said plant with a mechanical treatment (1); treating the leaves (100) to produce waxes and essential oils (102), and a fraction (101) containing cellulose, hemicellulose (carbohydrates) and, to a minor extent, salts, organic compounds and lignin; extracting (200) from the stem and branches a liquid phase (4), so forming a first solid woody residue (5), indicated with bagasse in the present text; treating said first solid woody residue (5) to prepare sugars, resin, rubber and lignin.

There is provided a method for more easily producing an acrylic rubber capable of providing a crosslinked rubber having excellent water resistance. A method for producing an acrylic rubber comprising the steps of subjecting a monomer to emulsion polymerization to obtain a polymerized emulsion; mixing the polymerized emulsion with a coagulant to obtain a water-containing crumb; and water-washing the water-containing crumb, wherein, in the step of water-washing the water-containing crumb, the water-containing crumb is water-washed until an electrical conductivity of the washing water after water-washing the water-containing crumb becomes 6.0 mS/cm or less.

Disclosed are polymeric compositions comprising polyhydroxyalkanoates. These compositions can comprise a blend comprising a polyhydroxyalkanoate (PHA) polymer, and a rubber polymer. The blend can comprise a biphasic mixture comprising a first phase comprising the PHA polymer, and a second phase comprising the rubber polymer dispersed with the first phase. The rubber polymer can be crosslinked, for example, through reaction with a free radical initiator. By incorporating the dynamically crosslinked rubber polymer, the polymer composition can exhibit one or more improved characteristics relative to PHA alone, including improved thermal stability, improved melt strength, improved flexibility, improved toughness, or a combination thereof. Also provided are articles formed at least in part from these polymeric compositions, as well as methods of making these polymeric compositions.

The invention relates to a method for processing dandelion plant components, particularly dandelion plant components of the Taraxacum kok-saghyz variety, in which, according to the method, rubber is obtained as a first valuable product, said method being characterised by the following steps: A) grinding and/or squeezing the dandelion plant components, preferably while adding water to form a pulp; and B) first separation of the pulp into at least one phase 80 which is high in inulin and low in rubber and at least one phase 90 which is high in rubber and low in inulin, the phase 90 which is high in rubber and low in inulin forming the first valuable product or the first valuable product being obtained from the phase which is high in rubber and low in inulin.

The invention relates to a method for processing dandelion plant components, particularly dandelion plant components of the Taraxacum kok-saghyz variety, in which, according to the method, rubber is obtained as a first valuable product, said method being characterised by the following steps: A) grinding and/or squeezing the dandelion plant components, preferably while adding water to form a pulp; and B) first separation of the pulp into at least one phase 80 which is high in inulin and low in rubber and at least one phase 90 which is high in rubber and low in inulin, the phase 90 which is high in rubber and low in inulin forming the first valuable product or the first valuable product being obtained from the phase which is high in rubber and low in inulin.

A method for producing a hydrogenated conjugated diene polymer latex includes: a hydrogenation step of dissolving or dispersing a hydrogenation catalyst containing a platinum group element in a latex of a conjugated diene polymer to hydrogenate a carbon-carbon unsaturated bond in the conjugated diene polymer; and an insoluble complex formation step of complexing the platinum group element in the latex with a complexing agent to form an insoluble complex, wherein pH of the latex at the insoluble complex formation step is controlled in a range of 5.0 to 8.0.

The present invention aims to provide rubber compositions for tires that contain a natural rubber achieving a balanced improvement in abrasion resistance, breaking performance, and processability to achieve a balanced improvement in abrasion resistance, breaking performance, and processability, and also provide pneumatic tires containing such rubber compositions for tires. Included is a rubber composition for tires comprising a modified natural rubber prepared by treating natural rubber latex with a proteolytic enzyme, and then treating the treated natural rubber latex with a lipolytic enzyme and/or a phospholipid degrading enzyme. Also included is a rubber composition for tires, comprising a modified natural rubber prepared by centrifuging natural rubber latex to recover a latex fraction comprising latex particles having an average particle size of 0.25 m or less.

The present invention aims to provide rubber compositions for tires that contain a natural rubber achieving a balanced improvement in abrasion resistance, breaking performance, and processability to achieve a balanced improvement in abrasion resistance, breaking performance, and processability, and also provide pneumatic tires containing such rubber compositions for tires. Included is a rubber composition for tires comprising a modified natural rubber prepared by treating natural rubber latex with a proteolytic enzyme, and then treating the treated natural rubber latex with a lipolytic enzyme and/or a phospholipid degrading enzyme. Also included is a rubber composition for tires, comprising a modified natural rubber prepared by centrifuging natural rubber latex to recover a latex fraction comprising latex particles having an average particle size of 0.25 m or less.

The invention relates to a method for processing dandelion plant components, particularly dandelion plant components of the taraxacum kok-saghyz variety, in which, according to the method, rubber is obtained as a first valuable product, said method being characterised by the following steps: A) grinding and/or squeezing the dandelion plant components, preferably while adding water to form a pulp; and B) first separation of the pulp into at least one phase 80 which is high in inulin and low in rubber and at least one phase 90 which is high in rubber and low in inulin, the phase 90 which is high in rubber and low in inulin forming the first valuable product or the first valuable product being obtained from the phase which is high in rubber and low in inulin.

The invention relates to a method for processing dandelion plant components, particularly dandelion plant components of the taraxacum kok-saghyz variety, in which, according to the method, rubber is obtained as a first valuable product, said method being characterised by the following steps: A) grinding and/or squeezing the dandelion plant components, preferably while adding water to form a pulp; and B) first separation of the pulp into at least one phase 80 which is high in inulin and low in rubber and at least one phase 90 which is high in rubber and low in inulin, the phase 90 which is high in rubber and low in inulin forming the first valuable product or the first valuable product being obtained from the phase which is high in rubber and low in inulin.