| Patents for B29C 61 - Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor (5,240) |
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| 11/04/1981 | EP0039196A1 Molding tool for forming a liner on the inside of a top panel of a container closure shell |
| 11/03/1981 | US4298641 Heat recoverable article |
| 11/03/1981 | US4298415 Branch-off method |
| 11/03/1981 | US4298331 Container fabricating machine |
| 11/03/1981 | US4298320 Apparatus for dispensing and molding lining material into metallic cap shells |
| 10/28/1981 | EP0038659A1 Heat-shrinkable cover sheet |
| 10/28/1981 | EP0038559A2 Method of producing an abrasion resistant sheet and apparatus for producing it |
| 10/27/1981 | US4297155 End-cap for cable |
| 10/27/1981 | US4296533 Snap fastener component strip |
| 10/27/1981 | CA1111233A1 Method of and apparatus for joining opposed leg portions of molded coupling elements for slide fasteners |
| 10/20/1981 | US4296060 Method of producing a pultruded, fiber reinforced rod |
| 10/20/1981 | CA1110879A1 V-belt |
| 10/20/1981 | CA1110812A1 Flexible contact lens moulding apparatus |
| 10/14/1981 | EP0037651A2 Molding device for molding a liner on the inside surface of the top panel of a container closure shell |
| 10/13/1981 | US4294792 Molded plastic parts, particularly spin-cast plastic parts for eyeglass frames |
| 10/13/1981 | US4294790 Manufacture of sheet material |
| 10/07/1981 | EP0036963A1 Welding socket for thermoplastic materials, method and apparatus for its manufacture |
| 10/06/1981 | US4293201 Rubber-padded frames of eye spectacles and method for preparing same |
| 10/06/1981 | CA1110022A1 Method of blow molding an all plastic drum and compression molding a projection theron |
| 09/29/1981 | US4291440 Molded coupling element assembly |
| 09/23/1981 | EP0036306A1 Heat-recoverable wraparound closure |
| 09/23/1981 | EP0036250A1 Wrap-around device and arrangement which includes such a device |
| 09/22/1981 | US4290992 Heat-shrinkable film tube with an internally ribbed closed end, and a method of making it |
| 09/16/1981 | EP0035738A1 Cable sleeve with sleeve ends of shrinkable material |
| 09/16/1981 | EP0035737A1 Longitudinally split cable sleeve of shrinkable material |
| 09/15/1981 | US4289553 Heat-shrinkable article |
| 09/15/1981 | US4289465 Apparatus for formation of pultruded fiber glass reinforced twisted article |
| 09/15/1981 | CA1108829A1 Slide fastening element and apparatus and method of manufacture |
| 09/15/1981 | CA1108814A1 Continuous injection molding |
| 09/09/1981 | EP0035310A1 Method of manufacturing contact lenses by moulding, and lenses obtained |
| 09/09/1981 | EP0035309A1 Method of manufacturing contact lenses by moulding, and lenses obtained |
| 09/09/1981 | EP0035179A1 Sleeve ends of shrinkable material for the lateral closure of cable sleeves |
| 09/08/1981 | US4288400 Method for the continuous formation of biaxially oriented thermoplastic materials and forming articles therefrom by intermittent forming means interfaced therewith |
| 09/08/1981 | CA1108453A1 Optical fibre connector |
| 09/08/1981 | CA1108438A1 Stress-relieved v-ribbed belt and method for making same |
| 09/01/1981 | US4287011 Peel bonding, lap bonding |
| 08/26/1981 | EP0034500A1 Closure assembly for a recoverable wrap-around sleeve |
| 08/25/1981 | US4286000 Plastic preform |
| 08/25/1981 | CA1107627A1 High-strength laminate of thermoplastic polymer films, and method of manufacturing same |
| 08/19/1981 | EP0034080A1 Grained ethylene-propylene copolymer films, process for making them and apparatus for carrying out this process |
| 08/18/1981 | US4284448 Heat shrinkage around forming tool, joining ends |
| 08/11/1981 | US4283448 Pressing, heating fiber segments to produce uninterrupted microstructure |
| 08/11/1981 | US4283362 Folding and rolling polyethylene terephthalate |
| 08/11/1981 | US4283239 Bracing method |
| 08/11/1981 | CA1106664A1 Method and apparatus adapted for automatic or semi- automatic fabrication of ultra-precision ophthalmic lenses, e.g., contact lenses |
| 08/11/1981 | CA1106560A1 Method of manufacturing a plastics record carrier having a stratified structure as well as a device for carrying out the method |
| 08/04/1981 | US4282397 Wraparound splice case |
| 07/28/1981 | US4280258 Cable sleeve having a closable, longitudinal slit |
| 07/28/1981 | CA1105664A1 Machine and process for manufacturing flat-bottomed plastic bottles |
| 07/22/1981 | EP0032257A1 Method for the continuous manufacture of packing containers |
| 07/21/1981 | US4279943 Method of providing ring patch for nuts |
| 07/21/1981 | CA1105300A1 Cast contact lenses, apparatus and method for making same |
| 07/15/1981 | EP0032065A1 Flexible drive-transmission cables and methods of providing such cables with plastics coverings |
| 07/15/1981 | EP0032027A2 Heat-shrinkable laminate film and process for producing the same |
| 07/15/1981 | EP0032005A1 Improvements in or relating to disc record preparation |
| 07/15/1981 | EP0032001A1 Dimensionally-recoverable article with adhesive portion and process for the production thereof |
| 07/15/1981 | EP0031868A2 Process for preparing shrinkable articles, apparatus for carrying out this process and articles thus obtained |
| 07/08/1981 | EP0031756A2 Pattern lens for shape-moulding the face of a spectacle frame, and mould therefor |
| 07/08/1981 | EP0031624A1 Process for the manufacture of network packages |
| 07/07/1981 | US4277594 Heat shrinkable polyethylene film and method for its manufacture |
| 07/07/1981 | US4277578 Tensile and impact strength, haze-free packaging material |
| 07/07/1981 | US4276909 Heat-recoverable wrap-around devices |
| 07/07/1981 | CA1104313A1 Chitin films and fibers |
| 06/30/1981 | US4276102 Heat shrinkage of polymeric wrapping |
| 06/24/1981 | EP0030931A1 Method of making work pieces, especially spectacle templates |
| 06/23/1981 | US4275107 Heating while keeping out of contact with any surface |
| 06/23/1981 | US4274822 Apparatus for forming seal liners of thermoplastic material within closure cap shells |
| 06/17/1981 | EP0030326A1 Method of manufacture of cast films |
| 06/16/1981 | CA1103139A1 Composite strip, a process for the manufacture thereof and a process for producing a sterile package including the composite strip |
| 06/16/1981 | CA1102973A1 Method and means for replicating centrally apertured video disc records |
| 06/09/1981 | CA1102906A1 Heat recoverable article |
| 06/02/1981 | US4271330 Heat-recoverable articles |
| 06/02/1981 | CA1102079A1 Heat-recoverable article |
| 05/26/1981 | US4269640 Precision heat forming of tetrafluoroethylene tubing |
| 05/26/1981 | CA1101795A1 Method for manufacturing an embossed vinyl surface covering having a clear photopolymerized coating |
| 05/20/1981 | EP0028975A1 Apparatus for making a composite glass, especially an ophthalmic lens |
| 05/20/1981 | EP0028974A1 Method of making a composite glass, and composite glass, especially ophthalmic lens, so obtained |
| 05/20/1981 | EP0028630A1 Method for the production of a link-belt and a link-belt produced thereby. |
| 05/19/1981 | US4268559 Heat-shrinkable article |
| 05/19/1981 | US4268471 Reinforced |
| 05/19/1981 | US4268336 Method of manufacturing containers |
| 05/19/1981 | US4267937 Tear opening device for containers |
| 05/14/1981 | WO1981001304A1 Rigid shaped body,biaxially drawn,of synthetic material,and process for the manufacturing thereof |
| 05/12/1981 | US4267139 Reinforced plastic belt loop |
| 05/12/1981 | CA1100730A1 Biaxially stretched five-layer film and method for manufacture thereof |
| 05/06/1981 | EP0028066A2 A method for making a length of thermoplastics pipe by the radial expansion of a pipe blank within a circular cross-section mould |
| 05/06/1981 | EP0027914A1 An oriented Plastics preform for making an open mouth container |
| 05/05/1981 | US4265956 Synthetic net material |
| 05/05/1981 | US4265850 Process and apparatus for the production of spectacle frame parts of synthetic material |
| 05/05/1981 | US4265607 Apparatus for manufacturing a plastic insulator equipped with helical-shaped shields |
| 05/05/1981 | CA1100561A1 Apertured deformable laminar heating elements |
| 04/28/1981 | US4264661 Crosslinking in mold by irradiation |
| 04/28/1981 | US4264558 Method of producing plastic containers for storage of goods under pressure |
| 04/28/1981 | US4264010 Blend with a vinyl acetate-vinyl chloride copolymer; used for packaging or enclosing articles |
| 04/22/1981 | EP0027273A1 Fibrillated and orientated reinforcement films made of at least one film-forming, orientable synthetic polymer, process for the preparation of such films and hydraulic binder-based products containing these films |
| 04/21/1981 | US4262875 Information record stampers |
| 04/15/1981 | EP0027026A1 Assembly for marking elongate objects and method of providing them with identification |
| 04/15/1981 | EP0026973A1 Method of making heat recoverable articles |
| 04/08/1981 | EP0026435A1 Closing device for cable fittings of heat-shrinkable material |
| 04/07/1981 | CA1098813A1 Sealing and insulating article and method |