| Patents for B29C 44 - Shaping by internal pressure generated in the material, e.g. swelling, foaming (19,824) |
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| 12/28/1976 | US3999230 Apparatus for the continuous manufacture of phenolic resin foam in endless sheets |
| 12/21/1976 | US3998575 Continuous production of polymeric foam |
| 12/07/1976 | US3996322 Method of producing a tubular foamed plastic article |
| 12/07/1976 | US3995981 Feedhead device for the moulding of plastics materials to be formed from a plurality of liquid constituents |
| 11/30/1976 | US3994648 Endless conveyor spacing control for continuous molding |
| 11/23/1976 | US3993721 Method of forming a foamed article having a simulated wood grained surface |
| 11/16/1976 | US3992501 Sintering, compressing |
| 11/16/1976 | US3992496 Process for producing porous thermoplastic resin sheet |
| 11/09/1976 | US3991147 Process for molding foamed plastics from reaction mixtures involving closed mold filling with the avoidance of gas bubble entrainment |
| 11/09/1976 | US3991146 Method of encapsulating an insert in plastics material by injection molding |
| 11/02/1976 | US3989781 Process for producing a fibrous reinforced thermosetting resin impregnated foamed polymeric resin article |
| 10/26/1976 | US3988404 Process for producing a foamed thermoplastic resin article |
| 10/26/1976 | US3988403 Process for producing molded structural foam article having a surface that reproducibly and faithfully replicates the surface of the mold |
| 10/19/1976 | US3987134 Manufacture of foamed compartmented structures |
| 10/19/1976 | US3986918 Apparatus for forming laminated molded bodies |
| 10/19/1976 | US3986709 Direct gassing extruder with gas pockets |
| 10/12/1976 | US3985847 Method for the extrusion of foam shapes |
| 10/12/1976 | US3985483 Apparatus for making foamed plastic pipe insulation |
| 10/05/1976 | US3984511 Method of rotational molding |
| 10/05/1976 | US3984195 Continuous production of planar expanded polyurethane blocks |
| 09/28/1976 | US3983196 Method of injection molding structural foam having accurate mold surface reproductions |
| 09/28/1976 | US3983195 Pencil sheath compositions, method for making pencils |
| 09/28/1976 | US3982985 Method of forming panels |
| 09/21/1976 | US3981671 Liquid reaction molding press |
| 09/21/1976 | US3981654 Apparatus for producing fiber reinforced organic foam |
| 09/21/1976 | US3981649 Apparatus for producing a foamed thermoplastic resin article |
| 09/14/1976 | US3980513 Process for making laminates of sheet-formed, reticulated fibrous structures |
| 09/14/1976 | US3979818 Method of thermally insulating pipe |
| 08/31/1976 | US3978182 Method for extruding a polystyrene foam with variations in mass concentration across the sheet and thermoforming the sheet |
| 08/31/1976 | US3978181 Process for making a foam plastic resin encased roller |
| 08/31/1976 | US3977931 Method and machine for the continuous manufacture of panels |
| 08/31/1976 | US3977406 Medical sponges |
| 08/24/1976 | US3976731 Polysiloxane |
| 08/24/1976 | US3976285 Sealing arrangement for an extrusion apparatus |
| 08/17/1976 | US3975473 Process for production of cellular thermoplastic bodies |
| 08/10/1976 | US3973884 Manufacture of high-density foamed polymer |
| 08/03/1976 | US3973187 Sensing capacitance and thickness of insulated cable to provide outputs related to weigh and percent voids |
| 08/03/1976 | US3972970 Method for extruding cellular thermoplastic products |
| 08/03/1976 | US3972667 Apparatus for continuously producing foamed material |
| 08/03/1976 | US3972664 Injection molding apparatus for manufacturing layered articles |
| 07/27/1976 | US3971838 Process for continuously producing shaped articles of polystyrene foam |
| 07/27/1976 | US3971837 Process for manufacturing a composite foamed synthetic resin bowling pin |
| 07/20/1976 | US3970732 Method of molding rigid foamed polyurethane articles |
| 07/13/1976 | US3968625 Apparatus for the treatment of refuse or the like with a foam material |
| 06/29/1976 | US3966597 Oil or organic solvent-absorbent |
| 06/29/1976 | US3966373 Apparatus for the continuous extrusion of small cross-section thermoplastic foam profiles |
| 06/22/1976 | US3965228 Continuous production of polymeric foam |
| 06/22/1976 | US3964354 Flexile core material for laminated structures and method of producing the same |
| 06/15/1976 | US3963816 Process for molding expandable thermoplastic material |
| 06/15/1976 | US3963403 Apparatus for making foam plastic pipe |
| 06/15/1976 | US3963395 Mass production line for fabricating structural building members |
| 06/08/1976 | US3962507 Vinyl structure having an embossed top layer and a foam base |
| 06/08/1976 | US3962390 Method of producing composite foamed shaped articles from thermoplastic resins |
| 06/08/1976 | US3962387 Method of injection molding a foamable thermoplastic material |
| 06/08/1976 | US3962154 Polystyrene, polypropylene or polyethylene and zinc sulfide and barium sulfate |
| 06/01/1976 | US3961118 Polyesters, polyurethanes |
| 06/01/1976 | US3961000 Synthetic plastics |
| 06/01/1976 | US3960999 Polyurethanes |
| 06/01/1976 | US3960998 Coating strips with plastic foam |
| 06/01/1976 | US3960996 Method of injection molding a thermoplastic article having a cellular core and integral skin involving use of reclaimed material |
| 06/01/1976 | US3960631 Refrigeration appliance |
| 05/25/1976 | USRE28826 Method of constructing mold for forming plastic foam |
| 05/18/1976 | US3957940 Crushing |
| 05/11/1976 | US3956549 Molded plastic shells |
| 05/11/1976 | US3956438 Process for extruding a partially foamed thermoplastic product |
| 05/04/1976 | US3954929 Method and apparatus for the extrusion of foamable thermoplastic materials |
| 05/04/1976 | US3954928 Process for making sheet-formed reticulated fibrous structures |
| 05/04/1976 | US3954926 Polyurethanes, expansion, embedding, hardening |
| 05/04/1976 | US3954537 Production of multiple-layer sheets, panels, shaped articles |
| 05/04/1976 | US3954365 Apparatus for the preparation of foamed thermoplastic extruded profiles |
| 04/27/1976 | US3953739 Method and apparatus for the continuous monitoring and control of cell size in a foam structure |
| 04/27/1976 | US3953639 Mechanically embossed resilient laminar floor material |
| 04/27/1976 | US3953558 Gas impregnation, expansion |
| 04/20/1976 | US3952082 Method for forming an expanded-resin container about a body |
| 04/20/1976 | US3951718 Method for producing reinforced insulating foam |
| 04/20/1976 | US3951717 Process for making a laminate having a foam core |
| 04/13/1976 | US3950484 Method for injection molding a foamed thermoplastic polymer article substantially free from swirl-patterns in its surface |
| 04/13/1976 | US3950462 Method for making a resilient storage insert |
| 04/13/1976 | US3950197 Polymer, foaming |
| 04/13/1976 | US3949905 Device for the production of articles with a compact smooth skin and a cellular core from polymer materials |
| 04/13/1976 | US3949461 Methods for joining insulated pipe lengths |
| 04/06/1976 | US3949125 Molded solid plastics articles and a method for their manufacture |
| 04/06/1976 | US3949031 Method for making cellular articles |
| 04/06/1976 | US3949028 Method of making cellular polymeric shaped articles having relief patterns |
| 03/30/1976 | US3947177 Apparatus for injection molding of multi-layer bodies of thermoplastic |
| 03/30/1976 | US3947175 Apparatus for injection molding of bodies with a core and skin of different materials |
| 03/30/1976 | US3947173 Apparatus for extruding concentric plastic sheaths |
| 03/30/1976 | US3946981 Molding apparatus |
| 03/23/1976 | US3946095 Inserts, foaming, curing, thermosetting plastics |
| 03/23/1976 | US3945535 Injection molding apparatus |
| 03/16/1976 | US3944704 Composite structure |
| 03/09/1976 | US3943215 Method for the production of a foam cushion with a covering |
| 03/09/1976 | US3942926 Apparatus for fabricating foam pads |
| 03/09/1976 | US3942925 Apparatus for continuous production of elongated foam plastics blocks |
| 03/02/1976 | US3941544 Apparatus for the preparation of foamed thermoplastic extruded profiles |
| 03/02/1976 | US3941531 Apparatus for applying foam coating to preformed pipe |
| 03/02/1976 | US3941529 Apparatus for forming thermoplastic articles |
| 03/02/1976 | US3941528 Apparatus for moulding heat-expandable thermo-plastics material |
| 02/24/1976 | US3940528 Rigid plastics tile with textured surface |
| 02/24/1976 | US3940524 Article comprising foam plastic covered with an outer surface strengthening layer |