Patent classifications
C08L13/00
COMPOSITION COMPRISING FUNCTIONALIZED RUBBER AND GRAPHENE, PROCESSES AND APPLICATIONS THEREOF
The present disclosure generally relates to the field of tyre technology and pertains to compositions employed for manufacturing tyre treads. More particularly, the present disclosure provides a composition comprising functionalized styrene butadiene polymer (SBR) and graphene as a reinforcing filler, and processes for preparation and applications thereof. The reinforcement of functionalized SBR with graphene filler shows homogeneous dispersion of graphene via chemical bonding with functionalized SBR, reduces particle-particle interactions of graphene filler, reduces filler-filler interaction and hence increases in filler-graphene interaction which shows the improvement in properties such as wet grip, rolling resistance, modulus, hardness and tensile properties, rheological properties etc. A tyre tread made of the present composition is superior to a tyre tread manufactured using a composition comprising traditional fillers, such as carbon black.
SELF-HEALING WATER-SWELLABLE HYDRAULIC SEAL
A self-healing hydraulic seal is provided. The self-healing hydraulic seal is prepared from a water-swellable elastomeric composition comprising a base polymer and a plant-based polysaccharide.
SELF-HEALING WATER-SWELLABLE HYDRAULIC SEAL
A self-healing hydraulic seal is provided. The self-healing hydraulic seal is prepared from a water-swellable elastomeric composition comprising a base polymer and a plant-based polysaccharide.
Elastomeric ionomers for additive manufacturing
Disclosed is a method of: providing a solution having a solvent, a polybutadiene, and an acrylate; and functionalizing the polybutadiene with the diacrylate to produce an ionic polymer. The polymer may be useful as an additive manufacturing binder.
POLY(PHENYLENE ETHER), CURABLE COMPOSITION CONTAINING POLY(PHENYLENE ETHER), DRY FILM, PREPREG, CURED OBJECT, LAMINATE, AND ELECTRONIC COMPONENT
The present invention provides a poly(phenylene ether) which retains low-dielectric characteristics and is soluble in various solvents. The poly(phenylene ether) is characterized by being obtained from one or more raw-material phenols including a phenol satisfying at least Requirement 1 (to have hydrogen atoms in the ortho and para positions) and by having a slope calculated from a conformational plot of less than 0.6.
POLY(PHENYLENE ETHER), CURABLE COMPOSITION CONTAINING POLY(PHENYLENE ETHER), DRY FILM, PREPREG, CURED OBJECT, LAMINATE, AND ELECTRONIC COMPONENT
The present invention provides a poly(phenylene ether) which retains low-dielectric characteristics and is soluble in various solvents. The poly(phenylene ether) is characterized by being obtained from one or more raw-material phenols including a phenol satisfying at least Requirement 1 (to have hydrogen atoms in the ortho and para positions) and by having a slope calculated from a conformational plot of less than 0.6.
ACRYLIC RUBBER COMPOSITION
An acrylic rubber composition comprising 0.05 to 3.0 parts by weight of a fluorine-containing compound having a melting point of 30 to 100° C., based on 100 parts by weight of acrylic rubber. The acrylic rubber composition that can improve the dispersibility of a processing aid in the compound and the rubber compound handling properties during open roll operation without using a silicone-based processing aid, which causes bleeding of vulcanizates, and that satisfies the various characteristics, such as dimensional stability and heat resistance, of vulcanizates.
ACRYLIC RUBBER COMPOSITION
An acrylic rubber composition comprising 0.05 to 3.0 parts by weight of a fluorine-containing compound having a melting point of 30 to 100° C., based on 100 parts by weight of acrylic rubber. The acrylic rubber composition that can improve the dispersibility of a processing aid in the compound and the rubber compound handling properties during open roll operation without using a silicone-based processing aid, which causes bleeding of vulcanizates, and that satisfies the various characteristics, such as dimensional stability and heat resistance, of vulcanizates.
DUCTILE ONE-COMPONENT THERMOSETTING EPOXY COMPOSITION
A one-component thermosetting epoxy resin composition, including a) at least one epoxy resin A having on average more than one epoxide group per molecule; b) at least one latent hardener for epoxy resins; c) at least one physical or chemical blowing agent BA; d) 3-15 wt.-% of at least one carboxyl group containing acrylonitrile/butadiene rubber ABR1 with a Mooney Viscosity of 15-30 MU (Mooney units), based on the total amount of epoxy resin A; and e) 3-15 wt.-% of at least one carboxyl group containing acrylonitrile/butadiene rubber ABR2 with a Mooney Viscosity of 35-50 MU (Mooney units), based on the total amount of epoxy resin A. The ratio of ABR1 to ABR2 is from 0.5-2.0. The epoxy resin adhesive is notable for the improved storage stability.
Polymer composite having dispersed transition metal oxide particles
A method of forming polymer composites includes mixing a transition metal oxide precursor including at least one transition metal, a polymer as a binder, a solvent for the polymer, and water to form a first solution including polymer-transition metal complexes. The polymer-transition metal complexes are hydrolyzed to produce a plurality of transition metal oxide nanoparticles, wherein water is added in the mixing in a stoichiometric excess for the hydrolyzing. The solvent and residual of the water remaining after the hydrolyzing are removed. A polymer composite including the transition metal oxide nanoparticles dispersed in the polymer results after the removing, where some of the polymer is chemically conjugated to a surface of the transition metal oxide nanoparticles.