Use of cellulose fibers for structurally modifying polyvinyl chloride articles

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4851458
SERIAL NO

07095148

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Use of cellulose fibers of natural origin as an admixture to polyvinyl chloride is disclosed. Structurally modifying a polyvinyl article by admixing cellulose fibers limits heat shrinkage thereof and results in improved surface characteristics and/or mechanical characteristics. A polyvinyl article is provided which is comprised of polyvinyl chloride and from 1 to 40 wt. %, preferably from 3 to 20 wt. %, cellulose fibers having a fiber thickness ranging from a finite thickness to about 40 .mu.m and a fiber length ranging from twice the fiber thickness to about 400 .mu.m, preferably from about 80 .mu.m to about 400 .mu.m.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
REHAU AG + COREHAU33

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hopperdietzel, Siegfried Selb, DE 15 196

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Hoechst Aktiengesellschaft (1)
* 4551294 Molding composition based on vinyl chloride polymers, and process for the manufacture of films from these molding compositions for the production of forgery-proof valuable documents 31 1984
 
ARJOMARI-PRIOUX, A CORPORATION OF FRANCE (2)
* 4481075 Sheet products and preparation process thereof 22 1983
* 4612251 Paper sheet having a very high proportion of latex, process for preparing same and applications thereof particularly as a substitution product for impregnated glass webs 10 1983
 
FLEXSYS AMERICA L.P. (1)
* 4376144 Treated fibers and bonded composites of cellulose fibers in vinyl chloride polymer characterized by an isocyanate bonding agent 88 1981
 
BP PERFORMANCE POLYMERS INC., ("BP"), 620 FIFTH AVENUE, NEW YORK, NEW YORK, 10020, A CORP OF DE. (1)
* 4405730 Polyvinyl chloride shoe sole composition 9 1982
 
Mikuni Kogyo Kabushiki Kaisha (1)
* 4339363 Composite material compositions using wastepaper and method of producing same 11 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
DOVER CHEMICAL CORPORATION (1)
* 2004/0204,519 Wood filled composites 4 2004
 
Other [Check patent profile for assignment information] (1)
* 2005/0165,122 Polyurethane foam composition 2 2004
 
CPG INTERNATIONAL LLC (20)
* 6117924 Extrusion of synthetic wood material 30 1996
* 5866264 Renewable surface for extruded synthetic wood material 36 1996
* 5827462 Balanced cooling of extruded synthetic wood material 34 1996
6180257 Compression molding of synthetic wood material 42 1996
6344504 Extrusion of synthetic wood material 31 1996
* 6011091 Vinyl based cellulose reinforced composite 39 1997
* 6103791 Vinyl based cellulose reinforced composite 32 1999
6337138 Cellulosic, inorganic-filled plastic composite 28 1999
6248813 Vinyl based cellulose reinforced composite 29 2000
6511757 Compression molding of synthetic wood material 29 2000
6662515 Synthetic wood post cap 34 2001
6632863 Cellulose/polyolefin composite pellet 27 2001
6498205 Extrusion of synthetic wood material using thermoplastic material in powder form 27 2001
6984676 Extrusion of synthetic wood material 9 2002
6958185 Multilayer synthetic wood component 24 2003
6971211 Cellulosic/polymer composite material 26 2004
7743567 Fiberglass/cellulosic composite and method for molding 5 2007
8074339 Methods of manufacturing a lattice having a distressed appearance 0 2007
8460797 Capped component and method for forming 0 2009
8167275 Rail system and method for assembly 2 2010
 
Xyleon, Inc. (1)
7470463 Cellulosic and lignocellulosic materials and compositions and composites made therefrom 6 2006
 
CERTAINTEED CORPORATION (1)
6344268 Foamed polymer-fiber composite 55 1998
 
Green Bay Decking, LLC (1)
6758996 Cellulose-reinforced thermoplastic composite and methods of making same 24 2001
 
ROYAL BUILDING PRODUCTS (USA) INC. (1)
7186457 Cellulosic composite component 16 2002
 
Andersen Corporation (15)
* 5406768 Advanced polymer and wood fiber composite structural component 95 1992
* 5441801 Advanced polymer/wood composite pellet process 90 1993
* 5486553 Advanced polymer/wood composite structural member 108 1994
* 5695874 Advanced polymer/wood composite pellet process 53 1994
* 5539027 Advanced polymer/wood composite structural member 100 1994
* 5497594 Advanced polymer and wood fiber composite structural component 92 1994
5518677 Advanced polymer/wood composite pellet process 76 1995
5827607 Advanced polymer wood composite 64 1995
5948524 Advanced engineering resin and wood fiber composite 59 1996
* 6007656 Fiber reinforced thermoplastic structural member 64 1996
5932334 Advanced polymer wood composite 45 1997
6015611 Advanced polymer wood composite 48 1998
6004668 Advanced polymer wood composite 47 1998
6280667 Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component 46 1999
6015612 Polymer wood composite 52 1999
 
SMART PLANET TECHNOLOGIES, INC. (6)
* 2009/0047,499 GROUND CALCIUM CARBONATE COMPOSITES FOR STORAGE ARTICLES AND METHOD OF MAKING SAME 3 2008
8569411 Flexible packaging composites 1 2008
* 2009/0047,511 COMPOSITES FOR PACKAGING ARTICLES AND METHOD OF MAKING SAME 6 2008
* 2009/0047,525 FLEXIBLE PACKAGING COMPOSITES 5 2008
* 2009/0142,528 COMPOSITES FOR PACKAGING ARTICLES AND METHOD OF MAKING SAME 2 2009
9346238 Flexible packaging composites 0 2013
 
Formtech Enterprises, Inc. (1)
* 5858522 Interfacial blending agent for natural fiber composites 39 1997
 
ROYAL MOULDINGS LIMITED (3)
* 5847016 Polymer and wood flour composite extrusion 36 1996
* 5951927 Method of making a polymer and wood flour composite extrusion 22 1998
* 6066680 Extrudable composite of polymer and wood flour 37 1999
 
CRANE BUILDING PRODUCTS LLC (5)
6708504 Cooling of extruded and compression molded materials 20 2001
6637213 Cooling of extruded and compression molded materials 8 2002
6685858 In-line compounding and extrusion system 14 2002
7017352 Cooling of extruded and compression molded materials 10 2002
6780359 Synthetic wood composite material and method for molding 23 2003
 
XYLECO, INC. (9)
7074918 Cellulosic and lignocellulosic materials and compositions and composites made therefrom 16 2003
7307108 Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same 7 2005
7708214 Fibrous materials and composites 16 2006
7537826 Cellulosic and lignocellulosic materials and compositions and composites made therefrom 2 2006
7408056 Cellulosic and lignocellulosic materials and compositions and composites made therefrom 12 2006
7971809 Fibrous materials and composites 10 2007
7709557 Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same 2 2009
7825172 Compositions and composites of cellulosic and lignocellulosic materials and resins, and methods of making the same 0 2010
7980495 Fibrous materials and composites 1 2010
* Cited By Examiner