| Patents for B29C 44 - Shaping by internal pressure generated in the material, e.g. swelling, foaming (19,824) |
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| 04/07/1981 | CA1098669A1 Method and apparatus for making foam |
| 03/31/1981 | US4259274 Method and apparatus for making a laminated ski |
| 03/31/1981 | CA1098273A1 Process for the molding of plastic structural web and the resulting articles |
| 03/25/1981 | EP0025541A2 Process and apparatus for producing tubular elements of polyurethane multi-component reactive materials |
| 03/24/1981 | US4257997 Stretching in transverse direction to first uniaxial stretch |
| 03/24/1981 | CA1097869A1 Continuous rigid foam panel production |
| 03/18/1981 | EP0025259A1 Foam extrusion apparatus |
| 03/18/1981 | EP0025084A2 Apparatus for the continuous production of foam plastic blocks or sheets |
| 03/18/1981 | EP0025065A1 Thin skin laminated structure reinforced by polymeric foams |
| 03/18/1981 | EP0025063A1 Low density, extruded ethylenic polymer foams. |
| 03/17/1981 | US4256803 Phenolic resin foam |
| 03/17/1981 | US4256679 Process and device for filling cavities, particularly mold cavities, with a reactive, flowable mixture |
| 03/17/1981 | CA1097468A1 Method for the preparation of reticulate thermoset resin structures by thermal reticulation of foams |
| 03/11/1981 | EP0024929A1 Production of polyurethane foams, and foams made thereby |
| 03/11/1981 | EP0024610A1 Method of filling cavities of forming devices, with a reactive mixture of at least two liquid reaction components forming a solid plastics material |
| 03/11/1981 | EP0024520A1 Process for producing thermally insulated composite profiles |
| 03/10/1981 | US4255376 Solvent stretch process for preparing microporous films from precursor films of controlled crystalline structure |
| 03/10/1981 | US4255371 Process for producing olefinic resin foams |
| 03/10/1981 | US4255370 Polyurethanes |
| 03/10/1981 | US4255369 Forming a cushioned surface of polyvinylchloride bonded to an injection molded thermoplastic resin |
| 03/10/1981 | US4255368 Structural foam molding process |
| 03/10/1981 | US4255367 Method for injection molding articles wherein additives are added in selective portions |
| 03/10/1981 | US4255110 Apparatus for producing corrugated foamed plastic sheet |
| 03/10/1981 | US4255105 Equipment for the continuous production of foam boards |
| 03/05/1981 | WO1981000535A1 Method and apparatus for injection molding foamed resin parts with a smooth finish |
| 03/03/1981 | CA1097000A1 Closures for liquid product containers |
| 02/24/1981 | US4252757 Polyurethanes or polyisocyanurates |
| 02/24/1981 | US4252755 Polyethylene or polypropylene |
| 02/24/1981 | US4252517 Apparatus for crushing partially cured freely risen foam |
| 02/24/1981 | US4252515 Apparatus for the continuous fabrication of cellular products of a thermosetting resin |
| 02/24/1981 | US4252512 Coanda effect support for material processing |
| 02/24/1981 | CA1096120A1 Foam molding apparatus |
| 02/24/1981 | CA1096114A1 Shoe soles and method for manufacturing the same |
| 02/17/1981 | US4251476 Manufacture of ornamental vehicle wheels |
| 02/11/1981 | EP0023749A1 Method and apparatus for the manufacture of flexible polyurethane foam articles |
| 02/10/1981 | US4250132 Cable conductor wire |
| 02/10/1981 | US4249881 Station for running foam-plastics material into shut molds |
| 02/10/1981 | US4249872 Apparatus for producing foamed plastic type cork lines |
| 02/04/1981 | EP0023316A1 Mold equipment |
| 02/03/1981 | US4248931 Dimensionally stable structural foam plastic product |
| 02/03/1981 | US4248811 Safety tires, methods and equipment therefor |
| 02/03/1981 | US4248646 Vacuum forming, plastic, multilayer, covering, heat sealing |
| 01/28/1981 | EP0023194A1 A process for manufacturing coating panels, and panels obtained with such process |
| 01/28/1981 | EP0022902A1 Process for producing foam plastics plates |
| 01/27/1981 | US4247650 Expanded particulate material of polyolefin resin |
| 01/27/1981 | US4247515 Process for molding of plastic structural web articles |
| 01/27/1981 | US4247348 Process for molding cloth including a fabric layer, the stitches thereof having never been thermally set and molding a cloth-covered foam filled product |
| 01/27/1981 | US4247347 Process for molding cloth including a fabric layer by heating to at least the greater of the set or softening temperature the stitches thereof having never been set, and molding a cloth covered foam filled product |
| 01/27/1981 | US4247276 Vacuum extrusion apparatus for forming foamed plastic products |
| 01/27/1981 | CA1094273A1 Control of plastic injection |
| 01/20/1981 | US4246356 Exothermic reactions of polymerization and blowing form flexible open-celled foams |
| 01/20/1981 | US4246214 Method of molding polyurethane foams in steam heated molds and adhesion steam condensate is used to cool the molds |
| 01/20/1981 | US4246213 Method of producing a cover member for a safety air-cushion |
| 01/20/1981 | US4245970 Apparatus having a tubular inflatable bladder and a grout dispensing nozzle for connecting lateral branches to a relined main |
| 01/20/1981 | CA1093776A1 Machine for forming solid and hollow sections of expanded synthetic material, by a continuous process |
| 01/14/1981 | EP0022167A1 Method of making a caravan door-leaf and door-leaf obtained by this method |
| 01/13/1981 | US4244901 Foaming a polyurethane thermosetting resin to form wallboard |
| 01/13/1981 | US4244899 Activator in the form of a plastisol or organosol containing polyvinyl chloride |
| 01/13/1981 | US4244897 Method and apparatus to control the density of products produced from an extrusion process |
| 01/13/1981 | US4244764 Cushioned toilet seat with inner tube |
| 01/13/1981 | CA1093749A1 Expanded styrene-polymers and polyolefin micro-bits and their preparation |
| 01/07/1981 | EP0021564A1 Apparatus for the continuous manufacture of foam board |
| 01/07/1981 | EP0021159A2 Apparatus for the continuous production of foam plastic blocks or webs |
| 01/07/1981 | EP0021158A2 Apparatus for producing endless foam plastic webs, particularly rigid foam plastic webs |
| 01/07/1981 | EP0020330A1 Method of preparation, with machine aids, of shoes with completely coated soles |
| 01/06/1981 | US4243761 Foams/closed-cell/ |
| 12/30/1980 | US4242391 Forming a polyurethane foam |
| 12/30/1980 | US4242072 Apparatus for manufacturing pad members |
| 12/30/1980 | CA1092312A1 Method of zone pouring foam products |
| 12/30/1980 | CA1092311A1 Extrusion of cellular thermoplastic material |
| 12/23/1980 | US4241189 Wear-resistant flexible sheet material and a method for its manufacture |
| 12/23/1980 | US4240999 Method for introducing multi-component foam reactants into mold form involving the use of a foaming spacer |
| 12/23/1980 | US4240998 Polystyrene, compression molding |
| 12/23/1980 | US4240850 Making thermally-insulated tubing |
| 12/23/1980 | US4240557 Polystyrene foam structure |
| 12/16/1980 | US4239821 Apparatus for and method of coating a wear layer of a carpeting strip with curable latex foam |
| 12/16/1980 | US4239571 Compression of an open-cell foam material impregnated with a thermosetting resin |
| 12/16/1980 | US4239564 Method for coating a structure with a uniform foam layer |
| 12/16/1980 | CA1091592A1 High surface area permeable membrane |
| 12/16/1980 | CA1091565A1 Device and process for the continuous production of composite sections |
| 12/10/1980 | EP0019998A1 Reinforced foam laminates and a process for their manufacture |
| 12/10/1980 | EP0019748A1 Method of producing a fibre-reinforced resin foam and fibre-reinforced resin foam |
| 12/09/1980 | US4238544 Door panel and manner of making |
| 12/09/1980 | CA1090966A1 Process for production of foamed shaped pieces with poreless surface made by the molding process |
| 12/02/1980 | US4237181 Method of manufacturing a flexible polyurethane foam product |
| 12/02/1980 | US4237083 Blending polyolefin, silica, and water-insoluble plasticizer |
| 11/26/1980 | EP0019564A1 Method and apparatus for the extrusion of plastic tubings with composite walls |
| 11/26/1980 | EP0019382A1 Improved dielectric embossing of foam |
| 11/18/1980 | US4234657 Foamable thermoplastic stick and foamed element made therefrom |
| 11/18/1980 | US4234529 Method and apparatus for shaping plastic foams |
| 11/12/1980 | EP0018951A2 Manufacturing process for covering panels, and panels obtained with this process |
| 11/12/1980 | EP0018612A1 Method for making thermally insulating composite structural elements |
| 11/11/1980 | US4233006 Machine for forming expanded resinous products |
| 11/11/1980 | US4232788 Auto-expansible cushioning bag |
| 11/04/1980 | US4232130 Filter elements |
| 11/04/1980 | US4231556 Apparatus for holding hollow wall panels while they are filled with foamed plastic |
| 11/04/1980 | CA1088713A1 Thermoplastic ball core |
| 10/28/1980 | US4230961 Magnetic flux sensor for laminated cores |
| 10/28/1980 | US4230521 Foam impregnating apparatus |
| 10/28/1980 | CA1088409A1 Glass fibre reinforced foam and method of making same |