Patent classifications
C08J2307/00
Curative
A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce at least one of six different materials, wherein each type of material may be configured as a thermosetting elastomer that is crosslinked with β-hydroxyester linkages. The materials may be configured as a leather-like material, a foam material, a molded elastomer, a coating, an adhesive, and/or a rigid or semi-rigid material. Illustrative articles made from any combination of the six materials may be recycled using a mechano-chemical process to de-crosslink the thermosetting elastomer.
Elastomer compounds
Disclosed herein are elastomer compounds comprising: at least one elastomer that is resistant to heat for 70 h at 100° C. such that the at least one elastomer exhibits at least one of the following properties selected from: (a) a change in durometer hardness of no more than 15 points, (b) a change in tensile strength of no more than 40%, and (c) a change in ultimate elongation of no more than 40% The elastomer compound further comprises at least one graphene-based material present in an amount ranging from 0.01 phr to 30 phr relative to the at least one elastomer and at least one carbon black present in an amount ranging from 15 phr to 150 phr relative to the at least one elastomer. Also disclosed are methods of making such compounds, and articles comprising elastomer compounds.
THERMALLY EXPANDABLE COMPOSITIONS AND USE THEREOF IN WELDING SEALER TAPES
A thermally expandable composition including at least one solid rubber R, at least on tackifying resin, at least one blowing agent, a vulcanization system, and 0.5-30 wt.-% of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof. Also, a shaped article including a substrate layer composed of the thermally expandable composition, to a method for providing sealing, structural adhesion, baffling, or combination thereof to a structure of a manufactured article, and to use of fibrous magnesium oxysulphate or carbon fibers or a mixture thereof in a thermally expandable composition to improve sag resistance and/or flame resistance properties of said composition.
ANTIDEGRADANT COMPOSITION, ANTIDEGRADANT MASTER BATCH AND RUBBER COMPOSITION
An antidegradant composition, an antidegradant master batch comprising the antidegradant composition and a rubber composition comprising the antidegradant composition or the antidegradant master batch. The antidegradant composition comprises antidegradant TMPPD and one or two selected from antidegradant N3100-B and an antidegradant N3100-C. The antidegradant composition and antidegradant master batch render a rubber compound and a rubber article excellent discoloration resistance, fatigue resistance, ozone resistance, and mechanical properties before and after thermal oxidative aging and enables the rubber compound to be used in the manufacture of all or part of the rubber matrix, especially as a tire sidewall rubber composition and a tire tread rubber composition.
Laminate body, manufacturing method therefor, and airless tire
A laminate body of a rubber layer and a resin layer made of a resin, wherein the rubber layer includes a surface-treated superficial layer 4 directly united with the resin layer without any intervening adhesive layer.
Spherical particles comprising nanoclay-filled-polymer and methods of production and uses thereof
Methods for producing highly spherical particles that comprise: mixing a mixture comprising: (a) nanoclay-filled-polymer composite comprising a nanoclay dispersed in a thermoplastic polymer, (b) a carrier fluid that is immiscible with the thermoplastic polymer of the nanoclay-filled-polymer composite, optionally (c) a thermoplastic polymer not filled with a nanoclay, and optionally (d) an emulsion stabilizer at a temperature at or greater than a melting point or softening temperature of the thermoplastic polymer of the nanoclay-filled-polymer and the thermoplastic polymer, when included, to disperse the nanoclay-filled-polymer composite in the carrier fluid; cooling the mixture to below the melting point or softening temperature to form nanoclay-filled-polymer particles; and separating the nanoclay-filled-polymer particles from the carrier fluid.
Foam having improved feeling during use
The present invention relates to a foam made of a specific material having superior properties and to cosmetics comprising said foam.
Sulfur-crosslinked rubber mixture for vehicle tires, containing carbon nanotubes (CNT), vehicle tire having the sulfur-crosslinked rubber mixture, and method for producing the sulfur-crosslinked rubber mixture containing carbon nanotubes
A sulfur-crosslinked rubber mixture for vehicle tires including carbon nanotubes (CNT), to a vehicle tire comprising the sulfur-crosslinked rubber mixture and to a process for producing the sulfur-crosslinked rubber mixture comprising CNT. The sulfur-crosslinked rubber mixture according to the invention is characterized in that the CNT are predispersed in at least one polyisoprene. The vehicle tire according to the invention preferably comprises the sulfur-crosslinked rubber mixture in the tread and/or a sidewall and/or a conductivity track.
AQUEOUS DIPPING COMPOSITION
The present invention relates to an aqueous dipping composition for coating a textile reinforcing material, comprising 4% to 50% by dry weight of at least one rubber latex, 0.1% to 4.5% by dry weight of at least one blocked isocyanate, 0.02% to 20% by dry weight of at least one filler, 0.2% to 4% by dry weight of at least one epoxy group-containing compound, and 0.1% to 2% by dry weight of at least one polymer with carboxylic acid functional groups, wherein the amounts in % by dry weight are based on the total weight of the aqueous dipping composition. The composition is essentially free of resorcinol, resorcinol precondensates, formaldehyde and formaldehyde-releasing substances. The present invention relates to a use of such a composition, a process for coating a textile reinforcing material with this composition, a coated textile reinforcing material and a respective elastomeric article comprising the same.
AQUEOUS DIPPING COMPOSITION
The present invention relates to an aqueous dipping composition for coating a textile reinforcing material, comprising at least one rubber latex, at least one blocked isocyanate, at least one filler, at least one epoxy group-containing compound, and at least one polymer with carboxylic acid functional groups. The present invention further relates to the use of such a composition, to a process for coating a textile reinforcing material with this composition, to a coated textile reinforcing material and a respective elastomeric article comprising the coated textile reinforcing material.