Patent application number | Description | Published |
20090123740 | Surface Protection Sheet for Laser Material Processing - The object of the present invention is provision of a surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face, which can protect the surface of an application object, and does not allow easy development of a dross during laser cutting processing. According to the present invention, a surface protection sheet | 05-14-2009 |
20090149602 | Release resin composition, molded compact thereof, and laminate product - A release resin composition that is excellent in thermal stability, for example, during extrusion molding and does not cause problems such as smoking and foaming during preparation of a compound product or extrusion molding and further does not contaminate metal rollers. The release resin composition can be formed into a release layer that does not cause migration of impurities to an adhesive layer being in direct contact with the release layer and therefore does not decrease the adhesive properties of the adhesive layer. The release resin composition includes a release agent (A) of which main component is a polymer compound having a weight average molecular weight of 10000 to 1000000 and containing an aliphatic group having 8 to 30 carbon atoms and includes a thermoplastic polymer (B) containing an olefin monomer and/or a polar monomer as a constitutional unit, wherein the amount of the release agent (A) is 0.1 to 20 parts by weight to 100 parts by weight of the thermoplastic polymer (B). The release agent (A) shows a 2% weight loss temperature in the range of 260° C. or higher but lower than 275° C. and a 5% weight loss temperature in the range of 275° C. or higher but lower than 330° C. in thermogravimetric analysis. | 06-11-2009 |
20100143633 | SURFACE PROTECTION SHEET - A surface protection sheet including a base layer and a pressure-sensitive adhesive layer which have been formed by coextrusion. The surface protection sheet has satisfactory suitability for unwinding from a roll, etc., and the pressure-sensitive adhesive layer has a smooth surface and satisfactory adhesion to rough surfaces, is free from release ingredient transfer thereto, and hence poses no problem concerning contamination. The surface protection sheet comprises: a base layer comprising a thermoplastic resin; a pressure-sensitive adhesive layer formed on one side of the base layer; and a back treatment layer formed on the other side and comprising a polyethylene resin. The surface protection sheet is characterized in that the base layer, pressure-sensitive adhesive layer, and back treatment layer have been integrally formed by coextrusion molding and the pressure-sensitive adhesive layer contains a noncrystalline polyolefin elastomer in an amount of 50 wt. % or larger. | 06-10-2010 |
20110011841 | SURFACE PROTECTION SHEET FOR LASER MATERIAL PROCESSING - The object of the present invention is provision of a surface protection sheet for laser processing to be applied to the surface on the opposite side of the laser beam irradiation face, which can protect the surface of an application object, and does not allow easy development of a dross during laser cutting processing. According to the present invention, a surface protection sheet | 01-20-2011 |
20110236653 | BASE MATERIAL FOR SURFACE PROTECTIVE SHEET AND SURFACE PROTECTIVE SHEET - Provided is the following base material for a surface protective sheet. The slipping property of the back surface of the sheet is moderately excellent, and scratches in the surface of an adherend laminated to contact the back surface of the sheet can be suppressed. Also provided is a surface protective sheet containing such base material for a surface protective sheet. The base material for a surface protective sheet of the present invention is a base material for a surface protective sheet including a base material layer (A), in which: at least one surface of the base material for a surface protective sheet is the surface of the base material layer (A); the base material layer (A) contains a polyolefin-based resin as a main component; the base material layer (A) contains polymer fine particles having an average particle diameter of 3 to 20 μm at a content of 0.1 to 20 wt % with respect to 100 parts by weight of the polyolefin-based resin; the surface of the base material layer (A) has a surface roughness Ra of 0.15 to 0.60 μm; and the surface of the base material layer (A) has a coefficient of dynamic friction (I) with respect to an aluminum plate of 0.35 to 1.00. | 09-29-2011 |
20120040178 | PROTECTIVE FILM FOR AUTOMOTIVE WHEEL - Provided is a protective film for an automotive wheel having excellent performances, which can sufficiently prevent scratching of the wheel surface and staining, and also the generation of rust at a disc brake inside the wheel during a period until delivery of an automobile; and can be easily peeled. The protective film for an automotive wheel of the present invention is a protective film for an automotive wheel, including a base layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer of the protective film is bonded onto the back surface of the base layer of the protective film, and an adhesive force to the back surface after storage at 50° C. for 24 hours in an state of being bonded is from 0.1 to 2 N/20 mm at any peeling speed of 0.3 m/minute, 10 m/minute and 30 m/minute. | 02-16-2012 |
20120045641 | PROTECTIVE FILM FOR AUTOMOTIVE WHEEL - Provided is a protective film for an automotive wheel having excellent performances, which has excellent weatherability and can sufficiently prevent a decrease in an adhesive force and the like. The protective film for an automotive wheel is a protective film for an automotive wheel, including a base layer and a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes a pressure-sensitive adhesive composition containing at least a (meth)acryl-based polymer and a crosslinking agent, the (meth)acryl-based polymer contains a (meth)acryl-based monomer having an alkyl group of 1 to 14 carbon atoms as a main component, and contains, as other monomer components, at least a hydroxyl group-containing monomer as a constituent component, the content of the crosslinking agent is from 0.1 to 6 parts by weight based on 100 parts by weight of the acryl-based polymer, and the pressure-sensitive adhesive layer has a gel fraction of 60 to 95% by weight. | 02-23-2012 |
20120058331 | PROTECTIVE FILM FOR AUTOMOTIVE WHEEL - Disclosed is a protective film for an automotive wheel, including a base layer and a pressure-sensitive adhesive layer, wherein a trouser tear strength in the machine direction (MID) of the protective film is 3 N or more, and an adhesive force (adherend: a panel with an acrylic clear coating, after standing for 48 hours under the conditions of 23° C. and 50% RH) of the protective film is 4.9 N/25 mm or more at a peeling speed of 0.3 m/minute, and is 19.6 N/25 mm or less at a peeling speed of 30 m/minute. | 03-08-2012 |
20130115406 | WHEEL PROTECTIVE FILM - A wheel protective film is one including a base layer and a pressure-sensitive adhesive layer provided on one of the surfaces of the base layer, in which the diameter of the wheel protective film is smaller than the diameter of a wheel to be protected and larger than the outermost diameter of an opening formed on the disc surface of the wheel to be protected. The diameter of the wheel protective film may be 80% or more of the diameter of the wheel to be protected. | 05-09-2013 |
20130230683 | WHEEL PROTECTIVE FILM - A protective film has a base layer and a pressure-sensitive adhesive layer provided on one surface of the base layer. In the protective film, a ventilation portion through which air can pass from one surface to the other surface is formed. A trouser tear strength in the vertical direction (MD) of the wheel protective film is 3 N or more; and a pressure-sensitive adhesive force of the wheel protective film (adherend: acrylic clear-coated panel, after a lapse of 48 hours under the condition of 23° C.×50% RH) is 4.9 N/25 mm or more at a tensile speed of 0.3 m/min., and 19.6 N/25 mm or less at a tensile speed of 30 m/min. | 09-05-2013 |