Patent classifications
C08J2419/00
Recycled micronized rubber formulation having improved abrasion resistance
This invention is based upon the discovery that micronized solution styrene-butadiene rubber from postconsumer sources can be included in rubber formulations without severely compromising abrasion resistance. The micronized solution styrene-butadiene rubber utilized in the rubber formulations of this invention can be made by cryogenic grinding postconsumer rubber products using conventional procedures. For instance, it can be made by cryogenically grinding a tire tread containing a high level of solution styrene-butadiene rubber. The micronized solution styrene-butadiene rubber can then be blending into desired virgin rubbers and cured without significantly compromising the abrasion resistance of the rubber formulation. The rubber formulation of this invention is comprised of a natural or synthetic rubber and from 1 weight percent to 30 weight percent of a micronized rubber composition containing at least 10 weight percent solution styrene-butadiene rubber and having a particle size of 40 mesh to 200 mesh.
METHOD FOR PRODUCING RUBBER COMPOSITION, AND RUBBER COMPOSITION
Provided is a method for producing a rubber composition that includes a rubber component (A) including natural rubber, at least one filler (B) selected from an inorganic filler and carbon black, and a monohydrazide compound (C) supported on a solid. The monohydrazide compound (C) is represented by general formula (I): R—CONHNH.sub.2, where R represents an alkyl group having from 1 to 30 carbon atoms, a cycloalkyl group having from 3 to 30 carbon atoms, or an aryl group. The method comprises compounding in an optional preliminary compounding stage and a plurality of compounding stages, and adding the monohydrazide compound (C) supported on the solid and kneading in the preliminary compounding stage and/or a first compounding stage. Also provided is a rubber composition produced with this method.
COSMETIC COMPOSITION CARRIER COMPRISING LATEX FOAM
The present invention provides a cosmetic composition carrier comprising a latex foam having a density of 0.05-0.2 g/cm.sup.3 and a cosmetic product comprising same. The cosmetic composition carrier according to the present invention has excellent filling, holding, and discharge capabilities with respect to a liquid cosmetic, has excellent antibacterial activity, can be filled with, hold, and discharge liquid cosmetic compositions in a wide range of low to high viscosities, thus allows excellent color expression and uniform application without caking when a liquid cosmetic composition held in the cosmetic composition carrier is applied to the skin, and allows the application of the liquid cosmetic composition to a portable container.
METHOD FOR PRODUCING STRETCHED FILM
A stretched film is produced by stretching a resin film at a given temperature. The resin film contains an acrylic resin having a glass transition temperature (Tg) of 115° C. or higher and acrylic rubber particles. The total amount of an acrylic ester monomer as a constituent monomer of the acrylic rubber particles is from 10 to 40 wt % based on the total amount of constituent monomers of the acrylic resin and the acrylic rubber particles. The stretching temperature is from Tg+20° C. to Tg+70° C.
Masterbatch, rubber composition, and methods for producing the same
Disclosed herein is method for preparing a masterbatch by dispersing chemically modified cellulose nanofibers having carboxy groups under acidic conditions and then mixing the dispersed cellulose nanofibers with rubber latex. More specifically, the present disclosure provides a method for producing a masterbatch, including: (A) a step of introducing a carboxy group to a cellulose-based raw material to prepare a modified cellulose; (B) a step of carrying out defibration treatment and dispersion treatment of the modified cellulose to prepare a cellulose nanofiber; (C) a step of acidifying the cellulose nanofiber to prepare an acid type cellulose nanofiber; and (D) a step of mixing the acid type cellulose nanofiber and a rubber component. The rubber composition having excellent strength such as tensile strength can be provided by using the obtained masterbatch.
PACKAGING SUBSTRATE
The present invention provides a coating composition comprising a binder, a rheology modifier that acts to increase the viscosity of the coating composition and a particulate component able to remove a volatile organic compound from an environment in contact with the coating composition.
THIN ORGANIC SOLVENT RESISTANT GLOVE
A thin organic solvent resistant glove (100) is disclosed including: a first polymeric layer (202) in a shape of a glove including at least one of a blend of a polyisobutylene material and a nitrile-butadiene material, or a nitrile-butadiene material; a second polymeric layer (206) in a shape of a glove including at least one of a polyisobutylene material or a blend of a polyisobutylene material and a nitrile-butadiene material, disposed on the first polymeric layer, and a third polymeric layer (212) in a shape of a glove including a nitrile-butadiene material or an acrylic polymer material disposed on the second polymeric layer.
Foamed thermoplastic material, method for the manufacture thereof, articles prepared therefrom, and article-forming method
A foamed thermoplastic material includes a thermoplastic material exhibiting, in its unfoamed state, a particular flammability index, flame growth rate, and specific extinction area. The foamed thermoplastic material further includes a plurality of cells having a number average mean diameter of 5 to 150 micrometers present in an amount effective to provide the foamed thermoplastic material with a density that is 10 to 90 percent of the density of the unfoamed thermoplastic material. The foamed thermoplastic material exhibits a desirable tensile elongation and dielectric constant. A process for forming the foamed thermoplastic material, articles including the foamed thermoplastic material, and an article-forming process are also described.
Heat conductive sheet and method of producing same, and heat dissipation device
Disclosed are a heat conductive sheet including a resin and a particulate carbon material, and having an Asker C hardness at 25 C. of 60 or more and a thermal resistance value under a pressure of 0.5 MPa of 0.20 C./W or less, a method of producing a heat conductive sheet, and a heat dissipation device including the heat conductive sheet interposed between a heat source and a heat radiator.
Curable resin composition, structural adhesive, coating material or fiber reinforced composite material using the same, foam body using the same, laminate using the same, and cured material thereof
The present invention relates to a curable resin composition comprising a polyol (A) having an average hydroxyl value of 200 to 1500 mg KOH/g, a polyisocyanate (B), and polymer fine particles (C), and a curable resin composition comprising a polyol (A), a polyisocyanate (B), and polymer fine particles (C), wherein the polyol (A) comprises a polyester polyol (a2) as an essential component, and the amount of the polyester polyol (a2) is not less than 20 parts by mass per 100 parts by mass of the polyol (A).