The present invention relates to a polishing pad comprising a polishing surface. The polishing surface comprises a first polishing area and a second polishing area. The first polishing area comprises a plurality of first foaming holes, and the second polishing area comprises a plurality of second foaming holes, and an average pore diameter of the first foaming holes is less than an average pore diameter of the second foaming holes. The polishing pad according to the present invention uses the polishing areas with the different pore diameters of the holes to avoid unevenly removing the edge and central part of a substrate when polishing, so that a thickness of the substrate becomes uniform.

The polyester sheet in accordance with an aspect of the present invention contains crystals of polyester which is a polycondensate of polyvalent carboxylic acid and polyalcohol. The polyester sheet contains nano-oriented crystals which contain crystals of polyester in each of which a polymer chain is highly oriented and each of which has a crystal size of 50 nm or less. A heatproof temperature of the polyester sheet is higher than a temperature that is lower than an equilibrium melting point of the polyester by 80° C., and a melting point of the polyester sheet is higher than a temperature that is lower than the equilibrium melting point of the polyester by 40° C.

A method for producing a surface covering system comprising magnetically receptive layers affixed to surface covering units and magnetized underlayments for use in securing surface covering units to supporting surfaces. The system includes isotropic magnetized floor covering units and anisotropic magnetized underlays for securing surface covering units. The system includes a set of formulations including ferrites and rare earth materials, oils and plasticizer and binding agents to optimize performance to meet design and application criteria.

A method for producing a surface covering system comprising magnetically receptive layers affixed to surface covering units and magnetized underlayments for use in securing surface covering units to supporting surfaces. The system includes isotropic magnetized floor covering units and anisotropic magnetized underlays for securing surface covering units. The system includes a set of formulations including ferrites and rare earth materials, oils and plasticizer and binding agents to optimize performance to meet design and application criteria.

The present invention is directed to a construct for promoting absorption of molecules by a cell and the application thereof in drug and gene delivery. The present invention further describes topographical modulation of endocytosis for drug and gene delivery.

A method includes feeding a heated polymer additive at a first temperature into a continuous mixer at a first feed rate. The method includes feeding a heated abrasive solid material at a second temperature into the continuous mixer at a second feed rate. The heated abrasive solid material and the heated polymer additive are mixed in the continuous mixer to form a first mixture.

A method includes feeding a heated polymer additive at a first temperature into a continuous mixer at a first feed rate. The method includes feeding a heated abrasive solid material at a second temperature into the continuous mixer at a second feed rate. The heated abrasive solid material and the heated polymer additive are mixed in the continuous mixer to form a first mixture.

An edge-casting process for sheet materials according to the present invention includes the following steps: S1. grooving, that is to choose a suitable sheet material, and leave a processing margin on the peripheral edge of the sheet, material, so as to make a first groove; S2. casting or covering, that is to cast a high solid content coating material into said first groove and solidify it; S3. making a second groove on the back of said first groove of the sheet material, and casting a high solid content coating material into said second groove and solidify it; and S4. milling and chamfering, that is to chamfer the sheet material according to a required processing margin, then perform an edge-casting process. An objective of the present invention aims to simplify processes, improve production efficiency, upgrade edge banding performance, greatly enhance the waterproofness, super hardness, anti-friction, collision resistance and adhesion of sheet materials, and dramatically extend the service life of sheet materials, therefor we provide an edge-casting process for sheet materials and its application capable of producing cast edges of variously-shaped sheet materials and suitable for the production of diverse sheet materials.

An edge-casting process for sheet materials according to the present invention includes the following steps: S1. grooving, that is to choose a suitable sheet material, and leave a processing margin on the peripheral edge of the sheet, material, so as to make a first groove; S2. casting or covering, that is to cast a high solid content coating material into said first groove and solidify it; S3. making a second groove on the back of said first groove of the sheet material, and casting a high solid content coating material into said second groove and solidify it; and S4. milling and chamfering, that is to chamfer the sheet material according to a required processing margin, then perform an edge-casting process. An objective of the present invention aims to simplify processes, improve production efficiency, upgrade edge banding performance, greatly enhance the waterproofness, super hardness, anti-friction, collision resistance and adhesion of sheet materials, and dramatically extend the service life of sheet materials, therefor we provide an edge-casting process for sheet materials and its application capable of producing cast edges of variously-shaped sheet materials and suitable for the production of diverse sheet materials.

A multilayer film, including: a barrier layer in which an unstretched first film layer containing a first resin, and an unstretched second film layer containing a second resin different from the first resin are alternately and repeatedly laminated; a pair of unstretched first outer layers sandwiching the barrier layer; and a pair of unstretched second outer layers sandwiching the pair of unstretched first outer layers, wherein the average thickness per layer of the first film layers is 10 to 1,000 nm, and the lamination number of the first film layers in the barrier layer is in the range of 50 to 5,000.