This invention relates to a treatment process for a material chosen from among a polyamide, a polyester and a poly(meth)acrylate. According to the invention, this process comprises a step in which contact is made between this material and a polar organic solvent in a supercritical fluid. This invention also relates to a process for manufacturing a part from a material chosen from among a polyamide, a polyester and a poly(meth)acrylate in a divided form. Finally, the invention relates to use of the material treated by the treatment process and to use of the part manufactured by the manufacturing process in the low voltage, medium voltage or high voltage electrical industry.

This invention relates to a treatment process for a material chosen from among a polyamide, a polyester and a poly(meth)acrylate. According to the invention, this process comprises a step in which contact is made between this material and a polar organic solvent in a supercritical fluid. This invention also relates to a process for manufacturing a part from a material chosen from among a polyamide, a polyester and a poly(meth)acrylate in a divided form. Finally, the invention relates to use of the material treated by the treatment process and to use of the part manufactured by the manufacturing process in the low voltage, medium voltage or high voltage electrical industry.

An object of the present invention is to provide a primer composition for application between the base film and the adhesive layer of an adhesive tape that can improve the adhesion between the base film and the adhesive layer of the adhesive tape and an adhesive tape prepared by using the primer composition. A primer composition, comprising 100 parts by mass (as solid matter) of a graft polymer of a natural rubber graft-polymerized with 15 to 65 mass % of methyl methacrylate and 25 to 300 parts by mass of a carboxyl group-modified acrylonitrile butadiene rubber.

A device and method for smoothing a surface of an article formed at least partially from plastic, in particular a component of a motor vehicle, is provided. The method includes arranging the article in a vacuum-tight chamber, reducing the pressure in the chamber to a partial vacuum of not more than 50 kPa, in particular not more than 34 kPa, and admitting acetone into the chamber. Some of the acetone is vaporized and the vapor is precipitated on the surface of the article. In one form, the precipitated vapor acts on the article for at least 1 minute. The method further includes opening the chamber, so that at least the ambient pressure prevails in the chamber and removing the article from the chamber.

A device and method for smoothing a surface of an article formed at least partially from plastic, in particular a component of a motor vehicle, is provided. The method includes arranging the article in a vacuum-tight chamber, reducing the pressure in the chamber to a partial vacuum of not more than 50 kPa, in particular not more than 34 kPa, and admitting acetone into the chamber. Some of the acetone is vaporized and the vapor is precipitated on the surface of the article. In one form, the precipitated vapor acts on the article for at least 1 minute. The method further includes opening the chamber, so that at least the ambient pressure prevails in the chamber and removing the article from the chamber.

An insulation layer forming-composition including boehmite, a binder, and an organic solvent, wherein when a thermogravimetric analysis is performed on the boehmite and measurement is conducted at a temperature elevation rate of 10? C./min under an air flow, the weight reduction percentage in a range of 200-450? C. is 10.0 mass % or less, and the weight reduction percentage in a range of 450-600? C. is 5.0-13.5 mass %.

An insulation layer forming-composition including boehmite, a binder, and an organic solvent, wherein when a thermogravimetric analysis is performed on the boehmite and measurement is conducted at a temperature elevation rate of 10? C./min under an air flow, the weight reduction percentage in a range of 200-450? C. is 10.0 mass % or less, and the weight reduction percentage in a range of 450-600? C. is 5.0-13.5 mass %.

The invention generally relates to articles and methods of making thereof. More specifically, the invention generally relates to articles comprising a substrate embedded with particles, and having at least one etched surface exposing at least a portion of particles. Methods of making these articles are also disclosed. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

Disclosed are fluorinated vinyl polymer resin compositions, and prepregs and laminate materials containing the same. The fluorinated vinyl polymer resin composition includes a fluorine-substituted vinyl polymer resin and a functional polymer, where the fluorine-substituted vinyl polymer resin has the chemical structure: ##STR00001## where the maximum particle size is less than about 100 microns, at least one of the substituents R.sub.1, R.sub.2, R.sub.3, and R.sub.4 includes a fluorine atom, and where n is greater than about 100. The fluorinated vinyl polymer resin composition can be incorporated in prepreg and laminate materials.

A method for fabricating nanoporous polymer thin film includes steps as follows. A polymer thin film is provided, wherein a polymer solution including a polymer is coated on a substrate to form the polymer thin film. A swelling and annealing process is provided, wherein the polymer thin film is disposed inside a chamber with a vapor of a first solvent, the polymer thin film is swollen and annealed to form a swollen polymer thin film, and the swollen polymer thin film includes the polymer and the first solvent. A freezing process is provided, wherein the swollen polymer thin film is cooled to a temperature less than or equal to a crystallization temperature of the first solvent to crystallize the first solvent. A first solvent removing process is provided, wherein the first solvent is removed with a second solvent, such that a nanoporous polymer thin film is obtained.