Patents
Sitemap › B29 - Working of plastics; Working of substances in a plastic state in general › B29K - Indexing scheme associated with subclasses , or , relating to moulding materials or to materials for reinforcements, fillers or preformed parts, e.g. inserts › B29K 23 - Use of polyalkenes as moulding material
Patents for B29K 23 - Use of polyalkenes as moulding material (5,992)
12/1983
12/06/1983US4419411 Multi-layer polypropylene film structure and method of forming same
12/06/1983CA1158009A1 Method and apparatus for fabricating, surface treating and cutting thermoplastic polymer sheet
11/1983
11/15/1983US4415608 Continuous production of polymethylpentene membranes
11/15/1983US4415523 Heat-treating coated polyolefin films
11/09/1983EP0093449A1 Polyolefin extrusion process and apparatus
11/01/1983US4413109 Embossed films obtained from ethylene-propylene copolymers, and a process and apparatus for manufacturing the films
10/1983
10/25/1983CA1155615A1 Method of forming sealing gaskets in container closures
10/13/1983WO1983003381A1 Method and apparatus for preparing a high strength sheet material
10/05/1983EP0090380A1 Method and apparatus for preparing a high strength sheet material
09/1983
09/14/1983EP0088535A2 Oriented multilayer heat sealable packaging film and method of forming same
08/1983
08/31/1983EP0087210A1 A rotational moulding process using polyethylene compositions
08/16/1983US4399181 Cold drawn high-orientation multilayered film and process for manufacture of said film
08/09/1983CA1151378A1 Thermoplastic packaging films with improved heat-seal characteristics
08/03/1983EP0084803A2 Process for preparing polyolefin foam
08/03/1983EP0084768A1 Continuous production of polymethylpentene membranes
07/1983
07/05/1983CA1149124A1 Heat-sealable antistatic polypropylene films
06/1983
06/28/1983CA1148714A1 Heat-treating polyolefin films
06/22/1983EP0081797A1 Method of pressurizing treatment of pre-foamed particles of polyolefin resin
06/07/1983USRE31269 Heat-sealable antistatic polypropylene films
05/1983
05/24/1983US4384440 Method for the continuous manufacture of packing containers
05/17/1983CA1146319A1 Process for melt cutting ethylene polymers
04/1983
04/12/1983CA1144331A1 Process for producing articles of ultra high molecular weight high density polyethylene
04/06/1983EP0075897A2 Process for producing pre-foamed particles of polyolefin resin
03/1983
03/29/1983CA1143530A1 Molding powder of ultra-high molecular weight polyethylene and process for its preparation
03/08/1983US4376147 Plastic film having a matte finish
02/1983
02/15/1983US4374227 Extruded gloss improvement in pipe blends with low pressure low density polyethylene
01/1983
01/04/1983US4367511 Rough electrical insulating film of polypropylene and process for the manufacture thereof
12/1982
12/15/1982EP0066973A1 Extruded gloss improvement in pipe blends with low pressure low density polyethylene
12/14/1982US4363885 Ethylene block copolymer and talc
12/07/1982CA1136813A1 Forming unitary articles of two different thermoplastic materials
09/1982
09/22/1982EP0060673A1 Extrudable film-forming compositions of Ziegler-Natta catalyzed olefin polymers including anti-gel and anti-block components
09/14/1982US4349504 Injection moulding process using polymer blends containing high molecular polyethylene of high density
09/07/1982US4348438 Process for preparation of improved shrink wrap
07/1982
07/07/1982EP0055510A1 Process for preparation of heat-shrinkable wrapping of ethylene polymers
06/1982
06/08/1982US4333968 Biaxially oriented polypropylene film extrusion coated with ethylene-vinyl acetate copolymer
05/1982
05/18/1982US4330499 Process and apparatus for the simultaneous biaxial stretching of a plastic film
04/1982
04/28/1982EP0050496A2 Apparatus for extruding linear polyolefin materials having high viscosities
04/20/1982CA1121956A1 Blow molding of plastic articles having barrier properties
03/1982
03/23/1982US4321229 Method for extruding linear polyolefin materials having high viscosities
03/16/1982US4320041 Aqueous dispersion of olefin resins and continuous process for preparing thereof
02/1982
02/23/1982CA1118569A1 Method and means for manufacturing reticulated thermoplastic materials
02/17/1982EP0045764A1 Method for interconnecting pipes.
02/16/1982US4315887 Injection moulding of high molecular polyethylene using elevated mould temperature
02/02/1982US4313901 Isothermal transfer molding
02/02/1982CA1117699A1 Ethylene polymers of high melt index
01/1982
01/19/1982US4311660 Heat-treating polyolefin films
12/1981
12/08/1981US4304744 Method of forming sealing gaskets in container closures
12/01/1981CA1113634A1 Polyethylene composition for rotational molding
11/1981
11/10/1981CA1112013A1 Extrusion process for alpha-olefinic polymeric compositions
10/1981
10/28/1981EP0038559A2 Method of producing an abrasion resistant sheet and apparatus for producing it
10/28/1981EP0038394A1 Molding powder of ultra-high molecular weight polyethylene, process for its preparation
10/21/1981EP0038108A2 Thermoplastic packaging films with improved heat-seal characteristics
10/13/1981US4294882 Heat-sealable antistatic polypropylene films
09/1981
09/03/1981WO1981002405A1 Method for interconnecting pipes
09/01/1981US4287149 Process for the production of polymer materials
08/1981
08/19/1981EP0034080A1 Grained ethylene-propylene copolymer films, process for making them and apparatus for carrying out this process
07/1981
07/22/1981EP0032257A1 Method for the continuous manufacture of packing containers
06/1981
06/09/1981US4272474 Process for producing articles of ultra high molecular weight high density polyethylene
05/1981
05/27/1981EP0029119A2 Process for producing a rough electrically insulating foil of polypropylene
05/19/1981US4268470 Polymer materials
05/13/1981EP0028536A2 Process for producing articles of ultra high molecular weight high density polyethylene
05/12/1981US4267080 Polyethylene composition for rotational molding
04/1981
04/14/1981US4261944 Method for the manufacture of biaxially stretched polyolefin film
03/1981
03/17/1981US4256687 Process for producing molded articles
03/10/1981US4255368 Structural foam molding process
02/1981
02/11/1981EP0023776A1 A method of heat-treating a polyolefin film
01/1981
01/20/1981US4246390 Molding powder of ultra-high molecular weight polyethylene and process for its preparation
01/13/1981CA1093410A1 Syringe plunger
01/07/1981EP0020514A1 Injection moulding process using polymer blends containing high molecular polyethylene of high density
01/07/1981EP0020513A1 Injection moulding of high molecular polyethylene using elevated mould temperature
10/1980
10/01/1980EP0016033A1 Plunger for hypodermic syringe having integrally molded shaft and head and method for making
09/1980
09/29/1980EP0016033A4 Plunger for hypodermic syringe having integrally molded shaft and head and method for making.
08/1980
08/20/1980EP0014467A1 Improved process for melt cutting ethylene polymers
07/1980
07/09/1980EP0013046A1 Process for simultaneously biaxially stretching a thermoplastic synthetic resin foil and device for carrying out said process
07/01/1980CA1080597A1 Blocked film laminate of low density polyethylene
06/1980
06/25/1980EP0012405A1 Process for the manufacture of flat thermoplastic films having improved dimensional stability
06/12/1980WO1980001149A1 Method for simultaneous biaxial drawing of a synthetic sheet material and machine therefor
05/1980
05/06/1980US4201209 Molded hypodermic plunger with integral shaft and elastomeric head
05/01/1980WO1980000813A1 Injection moulding process using polymer blends containing high molecular polyethylene of high density
05/01/1980WO1980000812A1 Injection moulding of high molecular polyethylene using elevated mould temperature
04/1980
04/02/1980EP0009340A1 Heat-sealable antistatic polypropylene film and method for its production
03/1980
03/19/1980EP0008623A1 Biaxially oriented polypropylene film laminate and its use
03/18/1980CA1073623A1 Biaxially stretched polyolefin foil
03/11/1980US4192935 Ethylene polymers of high melt index
02/1980
02/26/1980US4190624 Process for the extrusion of compositions based on alpha-olefin polymers
12/1979
12/13/1979WO1979001111A1 Plunger for hypodermic syringe having integrally molded shaft and head and method for making
09/1979
09/18/1979CA1062427A1 Web-stretching process
07/1979
07/31/1979CA1059278A1 High modulus polyethylene
07/03/1979US4160053 Blocked film laminate of low density polyethylene
06/1979
06/19/1979US4158538 Apparatus for the continuous production of continuous plastics foam webs
12/1978
12/20/1978EP0000084A1 Use of alpha-polyolefin compositions for extrusion
02/1978
02/21/1978US4074715 Syringe plunger
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