A cross-linked rubber obtained by cross-linking a nitrile rubber composition, wherein the nitrile rubber composition contains a carboxyl group-containing nitrile rubber (a) with an iodine value of 120 or less and a diurethane compound (b) represented by a following general formula (1), a content of the diurethane compound (b) in the nitrile rubber composition is 5 to 15 parts by weight with respect to 100 parts by weight of the carboxyl group-containing nitrile rubber (a), and a tensile strength of the cross-linked rubber based on JIS K6251 is 15 MPa or more and an elongation at break of the cross-linked rubber based on JIS K6251 is 300% or more, is provided.

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In various embodiments, the invention provides an in-situ adduct formed by reacting liquid, solid, and/or semi-solid epoxy resins with a di-carboxylic acid functionalized polymer. The adducting process at least doubles the viscosity of the mixture. A hot melt thermosetting surfacing film and composite formed using the adduct are also disclosed. Methods of preparing and using are also disclosed.

The present invention relates to a foam made of a specific material having superior properties and to cosmetics comprising said foam.

A sole assembly for an article of footwear has a first portion having a lower ground engaging surface, an upper surface, and a recess formed in the upper surface. A second portion is seated in the recess in the first portion and has an upper surface. The second portion is formed from a first foam material prepared by a reaction product of a composition having about 10 to about 100 phr of a hydrogenated copolymer and about 10 to about 90 phr of a copolymer of ethlylene and an alpha olefin, the alpha olefin having up to 20 carbon atoms. The first foam material has a hardness of 25 to 45 Asker C and a density of less than 0.18 g/cm3.

Disclosed herein is a method of forming a photocurable polymer system. The method includes providing a polymer, providing a diaryl iodonium salt, blending said polymer and diaryl iodonium salt, applying the blend to a substrate; and crosslinking the blend. The polymer can be a silicone-based polymer, such as PDMS-ECHE. The polymer can also be ETBN. The blend can be crosslinked by exposing the blend to ultraviolet light, and the crosslinking can be cationic crosslinking. In one example, the wavelength of the ultraviolet light is 254 nm. The blend can be exposed to ultraviolet light for between about 10 seconds and 90 seconds. In one example, the blend is two percent by weight of the diaryl iodonium salt to the polymer.

A cross-linkable nitrile rubber composition including a highly saturated nitrile rubber (A) containing α,β-thylenically unsaturated nitrile monomer units in a ratio of 5 to 50 wt % and having an iodine value of 120 or less, a polysaccharide polymer staple fiber (B) having an average fiber diameter of 1 μm or less, and a cross-linking agent (C), wherein a ratio of content of the polysaccharide polymer staple fiber (B) is 0.5 to 30 parts by weight with respect to 100 parts by weight of the highly saturated nitrile rubber (A).

Modified plastic surfaces with perfluoropolymers are provided, whereby plastic surfaces that are intended for use under tribological conditions have substantially improved assembly properties and/or sliding friction properties and exhibit a very low degree of wear. Accordingly, modified plastic surfaces with perfluoropolymers are provided in which modified perfluoropolymer (micro)powders are present at the surface of plastics that comprise olefinically unsaturated double bonds at least at the surface such that the modified perfluoropolymer (micro)powders are chemically covalently bonded via a radical coupling of the olefmically unsaturated double bonds with perfluoropolymer (peroxy) radicals of the modified perfluoropolymer (micro)powders after a reactive conversion under mechanical stress at room temperature.

Provided is a rubber for a textile roller and a preparation method therefor. The main material of the rubber for a textile roller is a nitrile butadiene rubber, added with conductive powder and conductive bands to form a net-node structure in the nitrile butadiene rubber by means of a mixing process, so that the rubber for a textile roller has a high electric conductivity, can timely export static electricity, and has good mechanical performance suitable for a textile roller, applicable in components of a spinning frame, a roving frame, a drawing frame and other textile machines.

To provide a laminate excellent in alkali resistance and interlaminar strength at high temperature, and a process for producing the laminate. A process for producing a laminate, comprising producing a non-crosslinked laminate having a layer of a first composition containing a copolymer having fluorine atoms and a layer of a second composition containing a non-fluorinated elastic polymer, and crosslinking the first composition and the second composition to produce a laminate having a first layer formed of a crosslinked product of the first composition and a second layer formed of a crosslinked product of the second composition, wherein when the first composition and the second composition contains a common crosslinking aid, the absolute value of the crosslinking rate difference between the first composition and the second composition is at most 0.30.

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.