The invention provides polyurethane and polyisocyanurate foams and methods for the preparation thereof. More particularly, the invention relates to closed-celled, polyurethane and polyisocyanurate foams and methods for their preparation. The foams are characterized by a fine uniform cell structure and little or no foam collapse. The foams are produced with a polyol premix composition which comprises a combination of a hydrohaloolefin blowing agent, a polyol, a silicone surfactant, and a non-amine catalyst used alone or in combination with an amine catalyst.

A sheet formed from carbon fiber reinforced thermoplastic resin with high moldability, and a production method of said resin is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a terminal structure derived from a monohydric phenol represented by formula (1) and a constituent unit derived from a dihydric phenol, and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R.sub.1 represents an alkyl group with 8-36 carbons, or an alkenyl group with 8-36 carbons, and R.sub.2-R.sub.5 independently represent a hydrogen, a halogen, an alkyl group with 1-20 carbons optionally having a substituent, or an aryl group with 6-12 carbons optionally having a substituent.) ##STR00001##

A sheet formed from carbon fiber reinforced thermoplastic resin with high moldability, and a production method of said resin is provided. This sheet is formed from a carbon fiber reinforced thermoplastic resin that contains carbon fibers, dichloromethane, and a thermoplastic resin containing at least one of a polycarbonate resin and a polyarylate resin. The aforementioned at least one of a polycarbonate resin and a polyarylate resin has a terminal structure derived from a monohydric phenol represented by formula (1) and a constituent unit derived from a dihydric phenol, and the content of the dichloromethane contained in the sheet is 10-10,000 ppm by mass. (In formula (1), R.sub.1 represents an alkyl group with 8-36 carbons, or an alkenyl group with 8-36 carbons, and R.sub.2-R.sub.5 independently represent a hydrogen, a halogen, an alkyl group with 1-20 carbons optionally having a substituent, or an aryl group with 6-12 carbons optionally having a substituent.) ##STR00001##

Embodiments in accordance with the present invention encompass a two component composition containing in one component a latent organo-ruthenium carbide catalyst, and in another component a photoactive acid generator or a thermally active acid generator, and either of the components containing a mixture of photoactive compound along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said components are mixed together and exposed to a suitable radiation (or heat) to form a three-dimensional (3D) object. The three-dimensional objects so formed exhibits improved mechanical properties, particularly, high heat distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.

Embodiments in accordance with the present invention encompass a two component composition containing in one component a latent organo-ruthenium carbide catalyst, and in another component a photoactive acid generator or a thermally active acid generator, and either of the components containing a mixture of photoactive compound along with one or more monomers which undergo ring open metathesis polymerization (ROMP) when said components are mixed together and exposed to a suitable radiation (or heat) to form a three-dimensional (3D) object. The three-dimensional objects so formed exhibits improved mechanical properties, particularly, high heat distortion temperature, impact strength, elongation to break, among others. Accordingly, compositions of this invention are useful as 3D inkjet materials for forming high impact strength objects of various sizes with microscale features lower than 100 microns, among various other uses.

Provided herein are metal conductive compositions with improved conductivity. The improved conductivity is attributable to the addition of a sintering agent and a polymer emulsion.

Provided herein are metal conductive compositions with improved conductivity. The improved conductivity is attributable to the addition of a sintering agent and a polymer emulsion.

Provided herein are metal conductive compositions with improved conductivity. The improved conductivity is attributable to the addition of a sintering agent and a polymer emulsion.

[Object] An object of the present invention is to provide a thermoplastic elastomer composition with excellent heat aging resistance and also excellent hardness and mechanical properties as well as excellent moldability.

[Solution] A thermoplastic elastomer composition (I) including a cross-linked product of an ethylene.α-olefin.nonconjugated polyene copolymer (A) with a phenolic resin cross-linking agent (E), and 360 to 460 parts by mass of a crystalline polyolefin (B), 70 to 140 parts by mass of a softener (C), and 2 to 6 parts by mass of a lubricant (D) (provided that the amount of the copolymer (A) is 100 parts by mass).

[Object] An object of the present invention is to provide a thermoplastic elastomer composition with excellent heat aging resistance and also excellent hardness and mechanical properties as well as excellent moldability.

[Solution] A thermoplastic elastomer composition (I) including a cross-linked product of an ethylene.α-olefin.nonconjugated polyene copolymer (A) with a phenolic resin cross-linking agent (E), and 360 to 460 parts by mass of a crystalline polyolefin (B), 70 to 140 parts by mass of a softener (C), and 2 to 6 parts by mass of a lubricant (D) (provided that the amount of the copolymer (A) is 100 parts by mass).