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| Number | Title | Issue Date |
| 7370395 | Heating apparatus and process for drawing polyolefin fibers A heating apparatus and process useful for drawing ultrahigh molecular weight polyolefin fibers, such as polyethylene fibers. The heating apparatus includes a first set of rolls and a plurality of aligned ovens. The apparatus includes a second set of rolls at the ex... | 05/13/2008 |
| 7329453 | White, heatsealable, peelable polyester film, process for its production and its use Coextruded, biaxially oriented polyester films which have a white base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 80 ... | 02/12/2008 |
| 7316558 | Devices for stretching polymer films Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses ... | 01/08/2008 |
| 7305739 | Apparatus for tow opening An apparatus for opening a crimped multifilament tow comprising: a source of crimped multifilament tow; at least one pair of opposed gripping rollers comprising a first roller which is a metal roller and a second roller which is a smooth-surfaced roller made of a ma... | 12/11/2007 |
| 7211306 | Peelable polyester film with self-venting, process for its production and its use Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) includes a) from 80 to 98% by weight of polyester and ... | 05/01/2007 |
| 7205040 | Peelable polyester film having improved oxygen barrier, process for its production and its use Coextruded, biaxially oriented polyester films which have a base layer (B) and have a heatsealable outer layer (A) that can be peeled from APET/CPET and from CPET, where the outer layer (A) comprises from 80 to 99% by weight of polyester and | 04/17/2007 |
| 7200904 | Tenter system A tenter system designed to be used for simultaneously treatment of two base fabrics for felts for paper machines, or similar products, an upper fabric (3) and a lower fabric (4), comprising a pair of tenter frames (6) for the upper fabric and a... | 04/10/2007 |
| 7153122 | Apparatus for making transversely drawn films with substantially uniaxial character A process for stretching films is described. The process preferably stretches films in a uniaxial fashion. Preferably, optical films are stretched including multilayer optical films. Other aspects of the invention include a roll of stretched film and an apparatus fo... | 12/26/2006 |
| 7104776 | Methods and devices for stretching polymer films Stretched polymeric films can be used in a variety of applications, including optical applications. The stretching conditions and shape of the stretching tracks in a stretching apparatus can determine or influence film properties. Methods and stretching apparatuses ... | 09/12/2006 |
| 7039990 | Zoned stretching of a web Apparatus and methods for stretching one or more zones of a web are disclosed. Webs including stretched or activated zones are also disclosed. Each of the zones in the web is stretched in the cross-web direction, i.e., the direction transverse to the down-web direct... | 05/09/2006 |
| 7037461 | Method of stretching film A method of stretching films in which all or a portion of the width of the film is cooled during or just after stretching so as to improve the uniformity of the film. The includes stretching a polymeric film in a tenter that grasps the film with a plurality of clips... | 05/02/2006 |
| 6996881 | Method and plant for automatic washing and/or ironing of substantially flat objects, and plant for carrying out the method Method and plant for processing in the form of washing and/or ironing of substantially flat items (4), such as textiles and the like, which individually can be fed continuously and successively into a processing plant. The processing plant contains fixed as w... | 02/14/2006 |
| 6938309 | Zoned stretching of a web Apparatus and methods for stretching one or more zones of a web are disclosed. Webs including stretched or activated zones are also disclosed. Each of the zones in the web is stretched in the cross-web direction, i.e., the direction transverse to the down-web direct... | 09/06/2005 |
| 6901639 | Stretching machine A stentering machine having a horizontal drying zone and a vertical pretreatment zone for a web of material spread out between stentering chains is described. The stentering chains are brought from the vertical position into a horizontal position in a deflection zon... | 06/07/2005 |
| 6398993 | Method and apparatus for producing synthetic resin films A film production process having a film tentering step and a recovering step, characterized by detecting the side edge positions of the film running toward the recovering step, transferring the film running direction based on the detected information, and... | 06/04/2002 |
| 6372174 | Method and device for heating foils and arrangement for measuring foil temperatures The invention concerns an improved method of heating or tempering foils and an associated device including an arrangement for measuring the temperature, based on the following features: a separate arrangement is provided for heating the foil edges; the fo... | 04/16/2002 |
| 5924180 | Transport device and associated guiding rail An improved transport device comprises a novel guide rail (3). Carriages (5) can be moved along the guide rail (3), which carriages comprise guide elements (25a, 25b; 25c, 25d) for this purpose, which elements are supported on rail guiding surfaces (17a, ... | 07/20/1999 |
| 5791031 | Apparatus for producing longitudinally and/or transversely drawn-out film webs, in particular film webs simultaneously drawn out along two axes An improved device for producing longitudinally and/or transversely drawn-out foil webs, in particular foil webs simultaneously drawn-out along two axes, is characterized in that the actual clamping means that hold the edges of the foil are held and ancho... | 08/11/1998 |
| 5737812 | Transport device for a moving material web An improved transport device for a moving material web, in particular a stretching system for plastic film webs, comprises tenter elements (1) which can be moved along a guide rail system (3) on both sides of the material web (11). In this case, on both s... | 04/14/1998 |
| 5590445 | Tape extension device for semiconductor producing apparatus and semiconductor producing apparatus with tape extension device In a tape extension device for a semiconductor producing apparatus having a vertical tension device for tensing a tape, which is withdrawn from a tape roller, in a down-web direction above a semiconductor wafer, the tape extension device in the present in... | 01/07/1997 |
| 5390398 | Foil stretching machine for shrinking foils A film stretching machine is also capable of shrinking undulating film by gripping film to be treated at its longitudinal edges by pivotable clips which are disposed spaced apart on a chain conveyor and are guided in a chain conveyor guide. The film is sh... | 02/21/1995 |
| 5341547 | Apparatus for the treatment and biaxial stretching and axial shrinking of thermoplastic film web A thermoplastic film stretching apparatus includes a first and a second separate transport chain system including the respective guide tracks and tentering clamps. The tentering clamps are guided without the conventional chain plate connections. The first... | 08/30/1994 |
| 5184379 | Foil stretching plant Foil stretching plant comprising a plurality of zones, more particularly a heating zone I, a stretching zone II, a stabilizing zone III and a cooling zone IV. The individual zones I, II, III and IV are designed as modules which can be installed and remove... | 02/09/1993 |
| 5084949 | Tentering chain with a continuously adjustable chain pitch for treating film webs simultaneously in two axial directions A tentering chain has a continuously adjustable chain pitch for the simultaneous biaxial treatment of film webs. Tenter bodies conventionally equipped with clamps or hooks for gripping an edge of the film web are carried by the tentering chain. Guide rail... | 02/04/1992 |
| 5072493 | Apparatus for drawing plastic film in a tenter frame Apparatus and method for producing a novel drawn film by propelling individual carriages along opposed loops from a first speed abutted in stacks in carriage collection sections to a second speed space apart in a drawing section of a tenter frame and to a... | 12/17/1991 |
| 5028289 | Process and apparatus for compressive transverse stretching of polymeric sheet material Sheet material (4) is stretched transversely into longitudinally extending pleats by passage between intermeshing grooved rollers (A and B) having circularly or helically extending grooves in their surfaces. Each groove is formed of a base (6a,6b) and sid... | 07/02/1991 |
| 4882006 | System for stretching and severing strip-like resin sheet A system stretches and severs a strip-like resin sheet unwound from a sheet roll to produce a product of a prescribed shape, the system having a stretching device having forming members for stretching the strip-like resin sheet into a fan-shaped resin she... | 11/21/1989 |
| 4862564 | Apparatus for stretching a thermoplastic material web A thermoplastic material web is stretched transverse to the machine direction along a stretch course which widens exponentially in the stretching zone, an improved stretching apparatus being used to effect such stretching.... | 09/05/1989 |
| 4711751 | Process and apparatus for stretching tubular extruded plastic material A process of stretching tubular nets or plates made of extruded plastic material according to one or two directions at right angles to each other and an equipment for carrying out the same wherein said process consists in dipping the tubular net or plate ... | 12/08/1987 |
| 4554713 | Apparatus for differentially stretching, aligning and cutting sheet material Differentially stretched plastic with a dyed border along one side suitable for shaded interlayers of laminated windshields moves in an arcuate path away from a frustoconical roll of a continuously operating differential web stretcher toward an intermitte... | 11/26/1985 |
| 4525317 | Method and apparatus for stretching film or fibrous web A film or fibrous web which has been stretched by moving at least two laterally spaced first longitudinal portions gripped by a first gripping means along at least two arcuate divergent paths formed jointly by at least two radially disposed first pulleys ... | 06/25/1985 |
| 4476073 | Process and system for orienting layered polymer films Method and system for orienting a multilayer polymeric film structure by differentially heating the films so that orientation at their respective optimal temperatures is achieved.... | 10/09/1984 |
| 4464815 | Multidirectional orientation apparatus Apparatus for orienting a mailable film comprising means for pulling the film through at least one pair of multi-directional orientation rollers having helical grooves thereby imparting a random multi-directional orientation to the film.... | 08/14/1984 |
| 4434128 | Method and apparatus for stretching thermoplastic polymer films A method and apparatus for stretching a thermoplastic polymer film in which the opposite selvages of the film are gripped by gripping means and are stretched transversely during heating by moving the selvages along two divergent arcuate paths lying in the... | 02/28/1984 |
| 4432917 | Method for improving thickness uniformity of stretch oriented polyacrylonitrile film A system for producing a biaxially oriented polymer film of predetermined gauge profile. Methods and apparatus are provided for forming a continuous film of the polymer having substantially uniform gauge by controlling the character of the film in its aqu... | 02/21/1984 |
| 4420514 | Polymer film treatment with organic impregnant Acrylonitrile polymer film is treated with non-volatile water-miscible glycol plasticizer to improve toughness and other film properties. In a unique, continuous, steady state process polyacrylonitrile aquagel strip is treated with plasticizer additive in... | 12/13/1983 |
| 4384392 | Apparatus for the biaxial orientation of a deformable sheet material The present invention is an apparatus for biaxial orientation of precrystalline polyacrylonitrile polymer sheet consisting essentially of a machine direction orientor which stretches the sheet in the machine direction a transverse direction orientor which... | 05/24/1983 |
| 4331624 | Method and apparatus for biaxially stretching a tubular film Longitudinal and transverse stretching of a tubular film is effected by gripping opposite selvages of the tubular film between a pair of substantially coplanar pulleys and a pair of endless belt means trained arcuately around the pulleys, respectively, an... | 05/25/1982 |
| 4287147 | Multilayer film manufacture utilizing scrap resin A novel system for producing film by extruding and/or casting at least two layers of resin, such as polyacrylonitrile homopolymer or interpolymers. The system provides for co-extruding a continuous multi-layer film with contiguous or tandem dies from a fi... | 09/01/1981 |
| 4285100 | Apparatus for stretching a non-woven web or an orientable polymeric material There is described in a preferred embodiment of the present invention, a process and apparatus for bi-axially stretching a non-woven web of synthetic fibers in a first and second station wherein the first and second stations are provided with sets of roll... | 08/25/1981 |
