The present invention provides CMP polishing pads or layers having a unfilled Shore D (2 second) hardness of from 57-77 or a filled Shore D (2 second) hardness of from 18-50, made from a two-component reaction mixture of (i) a liquid aromatic isocyanate component comprising one or more aromatic diisocyanates or a linear aromatic isocyanate-terminated urethane prepolymer having an unreacted isocyanate (NCO) concentration of from 18 to 47 wt. %, based on the total solids weight of the aromatic isocyanate component, and (ii) a liquid polyol component including one or more curatives selected from the group of amines defined by Formulas (I) and (II).

The present invention provides CMP polishing pads or layers having a unfilled Shore D (2 second) hardness of from 57-77 or a filled Shore D (2 second) hardness of from 18-50, made from a two-component reaction mixture of (i) a liquid aromatic isocyanate component comprising one or more aromatic diisocyanates or a linear aromatic isocyanate-terminated urethane prepolymer having an unreacted isocyanate (NCO) concentration of from 18 to 47 wt. %, based on the total solids weight of the aromatic isocyanate component, and (ii) a liquid polyol component including one or more curatives selected from the group of amines defined by Formulas (I) and (II).

The invention provides multilayer surface coverings each having a layer obtained from a filler- containing PVC plastisol and obtained from a filler-free PVC plastisol, each of which comprises a plasticizer composition comprising bis(2-ethylhexyl) cyclohexane-1,4-dicarboxylate. Such surface coverings may be used as floor coverings or as imitation leather.

To provide natural rubber latex sponge with little pinking, and in particular deproteinized natural rubber latex sponge with low allergic properties. Natural rubber latex sponge is discolored when irradiated with light for 24 hours in an ammonia atmosphere of 0.03 g/l. The discoloration of the natural rubber latex sponge causes a color difference ΔE*ab of 0 to 10 between before and after the irradiation. The natural rubber latex sponge is produced from deproteinized natural rubber latex or latex obtained by causing a protein decomposition enzyme to react with natural rubber latex to decompose proteins.

The purpose of the present invention is to provide a film which enables an oil to be held on a surface of an object over a long period and which makes it possible to reduce work costs and equipment construction costs. The film of the present invention includes a base material having a plurality of voids therein and an oil retained in the voids, wherein the voids on one surface of the base material have an average void diameter which is smaller than an average void diameter of the voids present near a thickness-direction center of the base material.

The purpose of the present invention is to provide a film which enables an oil to be held on a surface of an object over a long period and which makes it possible to reduce work costs and equipment construction costs. The film of the present invention includes a base material having a plurality of voids therein and an oil retained in the voids, wherein the voids on one surface of the base material have an average void diameter which is smaller than an average void diameter of the voids present near a thickness-direction center of the base material.

Embodiments are directed to a radiopaque foam used to repair composite structures. A method for creating the radiopaque foam comprises providing first and second resin components that are radiolucent to x-ray imaging. A barium sulfate component is combined with the second resin component. After combining the barium sulfate component and the second resin component, the first resin component and the second resin component are mixed to create a pourable foam. An amount of barium sulfate combined with the second resin component is sufficient to render the pourable foam radiopaque to x-ray imaging.

Embodiments are directed to a radiopaque foam used to repair composite structures. A method for creating the radiopaque foam comprises providing first and second resin components that are radiolucent to x-ray imaging. A barium sulfate component is combined with the second resin component. After combining the barium sulfate component and the second resin component, the first resin component and the second resin component are mixed to create a pourable foam. An amount of barium sulfate combined with the second resin component is sufficient to render the pourable foam radiopaque to x-ray imaging.

A polyurethane foam of the present disclosure is obtained from a polyurethane raw material containing a polyol component and a polyisocyanate component, and a gas for foaming. The polyurethane raw material contains a hydrophobic silica as a foam retention agent for retaining a foam and a light calcium carbonate, and the light calcium carbonate is 10 parts by weight or more based on 100 parts by weight of the polyol component.

A polyurethane foam of the present disclosure is obtained from a polyurethane raw material containing a polyol component and a polyisocyanate component, and a gas for foaming. The polyurethane raw material contains a hydrophobic silica as a foam retention agent for retaining a foam and a light calcium carbonate, and the light calcium carbonate is 10 parts by weight or more based on 100 parts by weight of the polyol component.