摘要:
A gas burner, which is particularly suitable for flame treatment of substrates having large surfaces, e.g. for coating such surfaces in a combustion chemical vapor deposition (CCVD) process, includes a burner body with a gas supply connection and a nozzle plate, wherein the burner body and the nozzle plate constitute together a gas plenum and the nozzle plate constitutes a perforated wall section of the plenum. The nozzle plate includes a large number of nozzles extending from a plenum side to a flame side of the nozzle plate and it is made of a plurality of sheets which are arranged in a stack and extend substantially perpendicular or substantially parallel to the nozzle extension. The sheets include through openings, wherein the through openings of all sheets are at least partly aligned with each other, or they have a comb-like form.
摘要:
A barrier film for packaging food or beverage comprises a polymer base film, and a barrier layer comprising an inorganic oxide applied onto the base film by vapour deposition. The inorganic oxide layer is further coated with a healing layer of a crosslinked organopolysiloxane which is covalently bound to the inorganic layer. Other aspects disclosed here involve a multilayer packaging laminate comprised of the barrier film, and a method of manufacturing the barrier film and packaging containers manufactured from the film.
摘要:
A polymer film comprising a gas barrier coating of SiOx directly coated onto a first side of a polymer carrier layer. The film also comprises a heat sealable polyolefin layer arranged on a second side of the polymer carrier layer. The polymer film forms a part of a packaging laminate, and a packaging container can be produced from such a packaging laminate.
摘要:
A web of a polymer film (1) is coated with an oxide layer, in particular with an SiOx barrier layer, by transporting the web with the aid of a rotatable drum (12) through a plurality of flame bands, which are directed in a radial direction from above against the circumferential surface of the drum, which extend at a distance from each other across the width of the web being supported and transported on this circumferential surface, and which are fed with a gas mixture including a combustible gas, an oxidant, and a silicon containing compound. Therein the circumferential surface of the rotatable drum is cooled to a predetermined temperature and the web is transported through the area of the tip of the inner flame region. Polymer films with barrier layers produced in the named way have at small layer thicknesses of less than 10 nm very good barrier properties.
摘要:
A polymer film comprising a gas barrier coating of SiOx directly coated onto a first side of a polymer carrier layer. The film also comprises a heat sealable polyolefin layer arranged on a second side of the polymer carrier layer. The invention also relates to a packaging laminate comprising the polymer film and to a packaging container produced from such a packaging laminate. The invention further relates to a process for the production of the polymer film.
摘要:
This invention relates to a method to effect hop-by-hop routing in a network segment where different nodes have different views of the network topology. In particular, the methods of this invention are applicable when each node in a network or network segment may be aware of only a subset of the communication links in the network, without perceiving other communication links. Based on each node's individual view of the network, the method introduces the concept of a visibility set that includes all visible communication links. More specifically, an efficient algorithm is disclosed for searching for a family of one-to-all optimal feasible paths in communication network where different nodes may have different views of the network topology. The algorithm comprises (a) restricting the set of available paths to a destination node to the set of feasible paths from the source node to the destination node; and choosing as the optimal route the feasible path which has the lowest cost, wherein a path is a feasible path if (i) the path does not contain a cycle, and (ii) for each intermediate node visited by the path, the subpath from that intermediate node to the destination node is visible from the intermediate node.
摘要:
A barrier film for packaging food or beverage comprises a polymer base film, and a barrier layer comprising an inorganic oxide applied onto the base film by vapor deposition. The inorganic oxide layer is further coated with a healing layer of a crosslinked organopolysiloxane which is covalently bound to the inorganic layer. Other aspects disclosed here involve a multilayer packaging laminate comprised of the barrier film, and a method of manufacturing the barrier film and packaging containers manufactured from the film.
摘要:
A gas burner, which is particularly suitable for flame treatment of substrates having large surfaces, e.g. for coating such surfaces in a combustion chemical vapor deposition (CCVD) process, includes a burner body with a gas supply connection and a nozzle plate, wherein the burner body and the nozzle plate constitute together a gas plenum and the nozzle plate constitutes a perforated wall section of the plenum. The nozzle plate includes a large number of nozzles extending from a plenum side to a flame side of the nozzle plate and it is made of a plurality of sheets which are arranged in a stack and extend substantially perpendicular or substantially parallel to the nozzle extension. The sheets include through openings, wherein the through openings of all sheets are at least partly aligned with each other, or they have a comb-like form.
摘要:
A device for carrying out a plasma enhanced process includes, within a vacuum chamber, at least one magnetron electrode (32) constituting an unbalanced magnetron having a flat magnetron face (20) with peripheral and central magnetic poles of opposite polarities connected to a source (34) of alternating voltage. The device further includes a device for positioning a substrate (25), the substrate having a surface to be treated facing the magnetron face (20), and a gas supply device for supplying a process gas or process gas mixture to the space between the magnetron face (20) and the treated surface. The distance between the magnetron face (20) and the treated surface is adapted to the magnetic field created by the magnetron electrode (32) such that there is a visible plasma band running between darker tunnels formed by magnetic field lines extending between peripheral and central magnetic poles of the magnetron face (20) and the treated surface, the plasma band having a minimum width but having homogeneous brightness towards the treated surface.
摘要:
A device for carrying out a plasma enhanced process includes, within a vacuum chamber, at least one magnetron electrode (32) constituting an unbalanced magnetron having a flat magnetron face (20) with peripheral and central magnetic poles of opposite polarities connected to a source (34) of alternating voltage. The device further includes a device for positioning a substrate (25), the substrate having a surface to be treated facing the magnetron face (20), and a gas supply device for supplying a process gas or process gas mixture to the space between the magnetron face (20) and the treated surface. The distance between the magnetron face (20) and the treated surface is adapted to the magnetic field created by the magnetron electrode (32) such that there is a visible plasma band running between darker tunnels formed by magnetic field lines extending between peripheral and central magnetic poles of the magnetron face (20) and the treated surface, the plasma band having a minimum width but having homogeneous brightness towards the treated surface.