| Patents for B29C 44 - Shaping by internal pressure generated in the material, e.g. swelling, foaming (19,824) |
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| 11/01/1977 | US4056595 Process for producing foam slabs of rectangular cross-section |
| 11/01/1977 | US4056587 Previously expanded styrene polymer sheet |
| 10/18/1977 | US4054626 Method for forming bodies of foamed plastisol resin |
| 10/11/1977 | US4053549 Method of embossing foam polystyrene to prevent warping upon removal from mold |
| 10/11/1977 | US4053545 Injecting molding |
| 10/04/1977 | US4052137 Core molding machine |
| 10/04/1977 | US4051742 Arrangement for tensioning and guiding the belts of a cellular plastic forming machine |
| 09/27/1977 | USRE29416 Equipment for the continuous production of panels of synthetic material |
| 09/27/1977 | US4051211 Apparatus and process |
| 09/27/1977 | US4051210 Process for comolding a composite cushioning structure from a pneumacel fiber batt and synthetic elastomeric foam |
| 09/27/1977 | US4051209 Continuous rigid foam panel production |
| 09/27/1977 | US4051081 Process for making hydrophilic polyurethane foams |
| 09/20/1977 | US4049768 Method for extending thermoplastic foams having smooth external skins |
| 09/20/1977 | US4049760 Method of manufacture of foamed thermo-plastic extruded shapes |
| 09/20/1977 | US4049480 Method and apparatus for forming a joint in a confined space between two abutting ends of conduit liners |
| 09/20/1977 | US4049147 Low density polyethylene, expanded ethylene polymer |
| 09/13/1977 | US4048275 Cross-linking and foaming injection molding process for ethylenic polymers |
| 09/13/1977 | US4048273 Method of making a structural element |
| 09/13/1977 | US4048272 Method for preparing improved expanded polystyrene sheet |
| 09/06/1977 | US4046611 Of foamed plastic with integrated cloth covers |
| 08/30/1977 | US4045270 Extrusion |
| 08/30/1977 | US4044799 Cellular wall hose and method for making same |
| 08/23/1977 | US4044084 Method of removing an article from a chamber having a reduced pressure therein |
| 08/23/1977 | US4043721 Composite body molding apparatus |
| 08/23/1977 | US4043719 Apparatus for producing rigid foam plastic laminated board |
| 08/23/1977 | US4043715 Pumped injection of gas for making foamed plastic |
| 08/16/1977 | US4042751 Moulded panel and the method of its manufacture |
| 08/16/1977 | US4042746 Closed-cell and open-cell foams, thermosetting resin, reinforcemention |
| 08/16/1977 | US4042663 Foaming within a hollow shell formed by rotational casting |
| 08/16/1977 | US4042658 Method for making packaging particles and resulting product |
| 08/16/1977 | US4042314 Apparatus for the continuous manufacture of phenolic resin foam in endless sheets |
| 08/09/1977 | US4040884 Medical sponges |
| 08/02/1977 | US4039362 Packing material that can be shaped under the effect of heat |
| 07/26/1977 | US4038047 Method of making a flexible resilient abrasive |
| 07/26/1977 | US4037754 Closure plug |
| 07/19/1977 | US4037006 Composite panel-board and method of making same |
| 07/19/1977 | US4036923 Method for forming large reinforced foamed plastic panels |
| 07/12/1977 | US4035529 Coating the back of a textile floor covering with a polyurethane foam |
| 07/12/1977 | US4035458 Method of making a composite rigid foamed chair seat or the like |
| 07/12/1977 | US4034904 Twin-belt transport system |
| 07/05/1977 | US4034027 Method for spiral deposition of an integrally bonded hollow foamed synthetic resin strip |
| 07/05/1977 | US4033929 Plastic skin envelopes for glass bottles and the like |
| 07/05/1977 | US4033710 Apparatus for making thermoplastic articles with porous cores and less porous or nonporous skins |
| 06/28/1977 | US4032609 Method for pre-expanding and molding expandable thermoplastic polymer particles |
| 06/28/1977 | US4032383 Fiber insertion device for continuous 3d foaming machine and method |
| 06/28/1977 | US4032275 Device for the continuous production of a strand of foamed material |
| 06/21/1977 | US4031179 Manufacture of shaped articles of foamed olefin polymers |
| 06/21/1977 | US4031176 Method of injection molding expanded thermoplastics and articles produced thereby |
| 06/21/1977 | US4030754 Composite lightweight wheel rim |
| 06/21/1977 | US4030267 Molded packaging system |
| 06/14/1977 | USRE29265 Closed cell foam plastic molding machine |
| 06/14/1977 | US4029454 Injection molding machine for composite articles |
| 06/14/1977 | US4029037 Process for reinforcing plastic material and products therefrom |
| 06/07/1977 | US4028451 Elastomeric thermoplastic polyurethanes |
| 06/07/1977 | US4028158 Glass fiber mat and foam |
| 05/31/1977 | US4026980 Process for producing moulded expanded urea formaldehyde products |
| 05/31/1977 | US4026979 Continuous producton of expanded cellular material of circular cross section |
| 05/31/1977 | US4025974 Air mattress and method of making the same |
| 05/24/1977 | US4025687 Isocyanurates |
| 05/24/1977 | US4025375 Method for continuous welding together of plastic sheets |
| 05/24/1977 | US4025372 Method of making a padded item |
| 05/24/1977 | US4025257 Apparatus for continuously manufacturing an elongated reinforced shaped article |
| 05/24/1977 | US4025256 Apparatus for the continuous fabrication of fiber reinforced plastic profile members |
| 05/10/1977 | US4022858 Nucleating agents |
| 05/10/1977 | US4022857 Production of foamed sulfur compositions |
| 05/10/1977 | US4022856 Thermoplastic resins |
| 05/10/1977 | US4021874 Boat hull |
| 05/03/1977 | US4021173 Apparatus for the continuous manufacture of foamed hollow profiles |
| 04/26/1977 | US4020133 Collagen-aluminum complex |
| 04/26/1977 | US4019938 Urethane foam |
| 04/12/1977 | US4017572 Method of molding articles of polymeric foam substantially free from flashing |
| 04/12/1977 | US4017571 Deforming packed beads, rigidifying liquid filler, removing beads |
| 04/12/1977 | US4017570 Method of producing three dimensional skeletal structures |
| 04/12/1977 | US4017245 Apparatus for extruding expandable thermoplastic material |
| 04/12/1977 | US4017234 Multiple rotary casting machine |
| 04/12/1977 | US4017228 Apparatus for monitoring cellular dielectric material |
| 04/12/1977 | US4017225 Apparatus for the production of synthetic-resin bodies having core and skin of different density |
| 04/12/1977 | US4016702 Method for manufacturing a heat-insulating closed structure |
| 04/05/1977 | US4015920 Device for producing molded articles from foamable plastics |
| 03/29/1977 | US4015041 Upholstery articles and process for their manufacture |
| 03/29/1977 | US4014967 Method and mold for the discontinuous production of foam plastic parts |
| 03/29/1977 | US4014966 Method for injection molding a composite foamed body having a foamed core and a continuous surface layer |
| 03/29/1977 | US4014724 Heat shrinkable foamed plastic, mandrels |
| 03/29/1977 | US4014524 Dispersing apparatus |
| 03/22/1977 | US4012822 System for sealing and repairing leaks in ruptured containers |
| 03/15/1977 | US4012186 Panel forming device |
| 03/08/1977 | US4011357 Laminate of biaxially oriented polystyrene film and polystyrene foam |
| 03/08/1977 | US4011179 Continuous sulfur foam preparation using polyisocyanates |
| 02/22/1977 | US4009237 Process for producing shaped synthetic resin articles varying in shape of longitudinal section |
| 02/22/1977 | US4008990 Mold pivoting mechanism |
| 02/15/1977 | US4008030 Device for manufacturing blocks of porous thermoplastic in a continuous process |
| 02/15/1977 | US4007679 Press and safety latch therefor |
| 02/01/1977 | US4005958 Apparatus for continuous production of rectangular cross-sectioned foamed plastic bunstock |
| 01/25/1977 | USRE29125 Continuous molding conveyor with side clamping and release |
| 01/18/1977 | US4003113 Method of forming a spring cushion construction |
| 01/11/1977 | US4002787 Foamed polymeric article and method for making the same |
| 01/11/1977 | US4002520 Vacuum forming thermoplastic sheets |
| 01/11/1977 | US4002289 Static-type mixer and receptacle |
| 12/28/1976 | US4000096 Measuring and mixing process for the manufacture of foamed resins and installation and conglomerates obtained by using them |
| 12/28/1976 | US3999736 Apparatus for encapsulating an article in molded polyurethane |