Patents for B29D 7 - Producing flat articles, e.g. films or sheets (4,438)
01/1981
01/27/1981US4247507 Polishing rolls
01/20/1981US4246054 Polymer membranes for X-ray masks
01/07/1981EP0021672A1 Oriented polypropylene film substrate and method of manufacture
01/07/1981EP0021667A1 Production and storage of polyvinylbutyral sheet rolls
12/1980
12/23/1980US4241005 Process for producing a molecularly oriented film
12/09/1980US4238382 Composition and process for delustering plastisol films
12/09/1980CA1090969A1 Circular extrusion method and apparatus involving rotation around the die axis
11/1980
11/11/1980CA1089224A1 Wall coverings
10/1980
10/15/1980EP0016817A1 An oriented, semi-crystalline polymer product and method and apparatus for producing such product.
10/14/1980US4228267 Methyl methacrylate-based resin film and sheet
10/07/1980US4226818 Production of polyvinylbutyral sheet rolls
09/1980
09/30/1980US4225547 Extrusion process of polytetrafluoroethylene tubing materials and apparatus therefor
09/16/1980CA1085993A1 Copolymers and diaphragms made therefrom
09/02/1980US4220602 For hair cosmetics
08/1980
08/19/1980US4218498 Surfactants improve surface
07/1980
07/29/1980US4214862 Screw extruder for the continuous extrusion of thermoplastic materials
06/1980
06/25/1980EP0012405A1 Process for the manufacture of flat thermoplastic films having improved dimensional stability
06/10/1980US4206980 Metl blending thermoplastic polymer with compound in which polymer will dissolve or disperse at polymer melting point but from which polymer will separate on cooling
06/03/1980CA1078571A1 Cellulose solution extruding or forming process, and products thus obtained
05/1980
05/27/1980CA1078118A1 Process for preparing a microporous polymer film
05/27/1980CA1078117A1 Process for asymmetrical selectively permeable cellulose triacetate membranes
05/13/1980CA1077224A1 Process of casting polymeric films
05/06/1980US4201534 Foam extrusion die assembly
04/1980
04/03/1980WO1980000550A1 An oriented,semi-crystalline polymer product and method and apparatus for producing such product
04/02/1980EP0009300A1 Process for preparing a fibril-reinforced polyolefin film and olefin polymer film so prepared
04/01/1980CA1074629A1 Embossed decorative sheet-type material and process for making same
04/01/1980CA1074515A1 Method of and apparatus for making a non-slip plastics film
03/1980
03/19/1980EP0008689A1 A method and an arrangement for the manufacture of a material web of foamed thermoplastics
03/11/1980US4192842 Spontaneous spreading; semipermeable for separation of oxygen from nitrogen-containing gas
03/11/1980US4192494 Cutter mat and method of making same
02/1980
02/06/1980EP0007608A1 Thermoplastic masterbatch for the manufacture of plastic films with antiblocking properties
01/1980
01/29/1980US4186164 Polyxylylenes
01/09/1980EP0006824A2 Process and apparatus for cleaning films of plastic material and films so cleaned
01/01/1980CA1068859A Cooling apparatus for air cooling tubular plastics film made by a foam blowhead
12/1979
12/25/1979US4180620 Plasticized polyvinyl butyral sheeting with a divalent metal salt of neo decanoic acid adhesion control agent
12/18/1979US4179081 Apparatus for application of plastics stretch films
12/11/1979CA1067662A1 Continuous extrusion of thermoplastic materials
11/1979
11/27/1979CA1067247A1 Process for the production of laminates
11/27/1979CA1067165A1 Heat-recoverable wrapping with dimples
10/1979
10/16/1979CA1064210A1 Process and apparatus for heat setting biaxially oriented tubular polyethylene terephthalate films
10/02/1979CA1063745A1 Plastics sheet material and articles produced therefrom
10/02/1979CA1063309A1 Process for reducing core-set curling tendency and core-set curl of polymeric film elements
09/1979
09/19/1979EP0004071A2 Method and apparatus for the continuous formation of biaxially oriented thermoplastic materials and forming articles therefrom by intermittent forming means interfaced therewith
09/18/1979CA1062429A1 Heat-setting process for polyester film
09/18/1979CA1062424A1 Sheets and films of polyolefinic material, similar to paper, and process for producing them
09/11/1979US4167614 Process of producing multi-oriented fibres and films of aliphatic polyamides
09/11/1979US4167378 Apparatus for shredding and dry-defibrating compressed cellulose pulp and forming a batt of the resulting cellulosic fibrous material
09/11/1979CA1062059A1 Device for acting on a web-shaped material
08/1979
08/28/1979US4166082 Blend with a butadiene graft polymer and an ethylene, propylene or isobutylene copolymer in specific ratios
08/28/1979CA1061072A1 Process for preparing an embossed sheet of polyvinyl chloride series
08/21/1979CA1060638A1 Molded pile product and method making such a product
08/21/1979CA1060605A1 Regenerated cellulose softener recovery method and apparatus
08/14/1979CA1060164A1 Shaping apparatus for the extrusion of tubular thermoplastic film
08/07/1979CA1059719A1 Coextruded heat sealing composite polyolefin film
07/1979
07/31/1979CA1059279A1 Embossed suede material and method of preparing same
07/10/1979US4160638 Apparatus for forming sheets of foamed synthetic plastics material
07/10/1979CA1057927A1 Manufacture of thin walled plastics articles
07/03/1979CA1057476A1 Cold molding material for high temperature applications
06/1979
06/19/1979US4158683 Process for obtaining films and blocks of cellulose acetate particularly for rapid and preparative analytical electrophoresis and for immuno-techniques
05/1979
05/22/1979US4155793 Continuous preparation of ultrathin polymeric membrane laminates
05/22/1979CA1054983A1 Self-supporting rolls of thin plastic film
05/08/1979CA1053873A2 Method and apparatus for the cooling of a tubular extrudate of expanded polystyrene
04/1979
04/24/1979CA1053339A1 Capacitor having a hazy polypropylene film
04/17/1979CA1052516A1 Process and device for the manufacture of sheeting
04/10/1979CA1052066A1 Process for preparing a web of film prior to winding it into a wound roll
04/03/1979US4147622 Process for manufacturing membranes for osmotic separation
03/1979
03/21/1979EP0001063A1 Process for washing and/or drying of liquid containing films made by electrolytical precipitation or thermal or electrical coagulation of natural and/or synthetic rubber
03/20/1979US4145391 Cellulose fiber process
02/1979
02/20/1979US4140740 Flatness control of thermoplastic film
02/06/1979US4138459 Process for preparing a microporous polymer film
01/1979
01/23/1979CA1046726A1 Reinforced wicket hole directionally tear prone
01/02/1979US4132824 Method for casting ultrathin methylpentene polymer membranes
01/02/1979CA1045323A2 Apparatus and process for the production of pile surface articles
01/02/1979CA1045322A2 Apparatus and process for the production of pile surface articles
12/1978
12/19/1978CA1044419A1 Process for producing porous polymer film
12/19/1978CA1044414A1 Process and apparatus for controlling dimensions in plastic extrusions
12/12/1978CA1043968A2 Apparatus for continuously producing a sheet shaped product
11/1978
11/28/1978US4127371 Apparatus for thermoplastic foam extrusion
11/28/1978CA1043068A1 Apparatus and process for the production of pile surface articles
11/07/1978CA1041723A1 Production of nylon 6-nylon 6,6 blended film
10/1978
10/31/1978CA1041381A1 Coatings and films from polymer products
10/10/1978CA1039914A1 Monoaxially oriented, post-heat treated polyester film and the process for making same
10/10/1978CA1039911A2 Apparatus for extruding a tubular film of thermoplastic material including a die and a cooled rotary mandrel
09/1978
09/26/1978CA1039014A1 Method and apparatus for the cooling of a tubular extrudate of expanded polystyrene
09/12/1978US4113908 Thermoplastic resin, fibers, pigments
09/05/1978US4112187 Flexible
08/1978
08/22/1978CA1036777A1 Extrusion-molded article having good thermal stability
08/22/1978CA1036776A1 Laminated pvc film with microcell surface
08/22/1978CA1036775A1 Double belt plastic sheet forming and take-off system
08/08/1978US4105737 Process for producing porous polymer film
08/01/1978US4104101 Process for making a plastic sheet
07/1978
07/25/1978US4102959 Process for preparing film by wet method
07/11/1978US4100326 Method for treating a magnetic recording medium
06/1978
06/27/1978US4097383 Process for production of microporous sheet
06/27/1978US4097319 Method of manufacturing a composite foamed polyolefin sheet
05/1978
05/02/1978US4087222 Continuous extrusion of thermoplastic materials
04/1978
04/25/1978US4086310 Of 2,2-bis(3,5-dimethyl-4-hydroxyphenyl)-propane, spreading solutions in styrene, dissolving
04/04/1978US4082488 Apparatus for the extrusion of temperature sensitive thermoplastics
03/1978
03/14/1978CA1027721A1 Semi permeable membranes
02/1978
02/28/1978US4076567 Method of producing plastic sheets with integrated geometric decorative patterns
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