A fastening device for fastening soft surfaced elements to each other comprises a planar top portion and two side portions. The side portions are coupled with the planar portion at one end via an angle portion, and are arranged essentially perpendicularly in relation to said planar top portion and essentially parallel with each other thereby forming a receiving opening for receiving said element between the side portions. In addition the side portions both comprise at least one tooth, which is inclined towards the opening and the element in use and thereby arranged to fasten, such as via friction or via penetration into the surface of the element, and thereby fasten the device to the element. Moreover at least one of the portions comprises a protrusion portion for receiving, focusing and attaching a magnetic member to the device so to allow the device to be fastened to an external member via said magnetic member.

A tile system for covering a surface. The tile system comprises a first tile assembly connected to a second tile assembly by a connector. Each tile assembly comprises a first tile stacked on a second tile, the first tile and the second tile joined to a reinforcing material disposed therebetween. The connector comprises a first component and a second component that is complementary to the first component. The first component is mounted to the first tile assembly, and the second component is mounted to the second tile assembly.

Various embodiments of flooring and other tiles are described that comprise one or more magnets and/or routed edges to connect adjacent tiles to one another. Some tiles may comprise a set of magnets or magnetized portions to connect with an adjacent tile having a set of magnets of opposite polarity.

The present invention intends to provide a technique by which, in an interior building material which is represented by a gypsum board and to which a magnet does not attach, the surface of such an interior building material can be modified so that a magnet can attach to the surface by simple means that can be put into practical use, a wall face and the like for which a stopper with a magnet, which is a substitute for a thumbtack, and a magnet sheet are usable can thereby be formed, and an interior building material which has realized favorable construction efficiency such that the interior building material can be easily cut with a cutter knife or the like can be made, and this object is realized by providing an interior building material having a plurality of sheet-like magnetic materials fixed to at least a portion of a surface or back surface of a plate-like base material to which a magnet does not attach, wherein adjacent magnetic materials are disposed in such a way as to have a portion where the adjacent magnetic materials are in contact with each other, or adjacent magnetic materials are disposed through a gap having a narrow portion.

A tile system for covering a surface. The tile system comprises a first tile assembly connected to a second tile assembly by a connector. Each tile assembly comprises a first tile stacked on a second tile, the first tile and the second tile joined to a reinforcing material disposed therebetween. The connector comprises a first component and a second component that is complementary to the first component. The first component is mounted to the first tile assembly, and the second component is mounted to the second tile assembly.

A tile system for covering a surface. The tile system comprises a first tile assembly connected to a second tile assembly by a connector. Each tile assembly comprises a first tile stacked on a second tile, the first tile and the second tile joined to a reinforcing material disposed therebetween. The connector comprises a first component and a second component that is complementary to the first component. The first component is mounted to the first tile assembly, and the second component is mounted to the second tile assembly.

Improved stripper solutions for removing photoresists from substrates are provided that typically have freezing points below about 0? C. and high loading capacities. The stripper solutions comprise dimethyl sulfoxide, quaternary ammonium hydroxide, and an alkanolamine having at least two carbon atoms, at least one amino substituent and at least one hydroxyl substituent, the amino and hydroxyl substituents attached to two different carbon atoms. Some formulations can additionally contain a secondary solvent. The formulations do not contain tetramethylammonium hydroxide. Methods for use of the stripping solutions are additionally provided.

The present invention relates generally to a tile or panel having at least one magnetic material embedded therein, and fully or partially covered with at least one layer of parchment. The invention also encompasses at least one discrete permanent magnet that is placed at an appropriate location within a panel or tile, and wherein at least a portion of the panel or tile and the at least one magnet are then optionally covered with at least one layer of at least one barrier material, and then at least one parchment layer partially or fully envelopes this assembly. The inventive tile having at least one magnetic type material can have at least one indicia or design on at least one surface, and the inventive tile can be magnetically attached to a wall or another panel having at least one magnetic type material to form a wall or panel surface.

A fastening device for fastening soft surfaced elements to each other comprises a planar top portion and two side portions. The side portions are coupled with the planar portion at one end via an angle portion, and are arranged essentially perpendicularly in relation to said planar top portion and essentially parallel with each other thereby forming a receiving opening for receiving said element between the side portions. In addition the side portions both comprise at least one tooth, which is inclined towards the opening and the element in use and thereby arranged to fasten, such as via friction or via penetration into the surface of the element, and thereby fasten the device to the element. Moreover at least one of the portions comprises a protrusion portion for receiving, focusing and attaching a magnetic member to the device so to allow the device to be fastened to an external member via said magnetic member.

A flooring system combines a dimensionally stabilized sub-floor laminate with a dimensionally stabilized tile laminate, the sub-floor laminate and the tile laminate being held together by magnetic attraction. In one embodiment one or other of the laminates is magnetic, and the other has a ferromagnetic engagement sheet. In another embodiment, a magnetic intermediate sheet is placed between ferromagnetic strata of the two laminates. The tile laminate may include ceramic tiles, which may be glass or porcelain. Those tiles are substantially rigid. They have flat ground edges to provide abutting matching fit with adjacent tiles. On assembly, neither mortar nor grouting is employed. The sub-floor has pre-defined mounting hardware accommodations that permit the fasteners not to interfere with the flatness and fit-up of the laminates.