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Class Information
Number: 521/917
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Specialized mixing apparatus utilized in cell forming process
Description: Subject matter involving mixing apparatus specialized or uniquely adapted to forming cellular products.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6902693 |
Expanded porous thermoplastic polymer membranes and method for the production thereof |
Jun. 7, 2005 |
| 6403662 |
Continuous process for manufacturing polyolefin foam beads |
Jun. 11, 2002 |
| 6326413 |
Process and apparatus for producing plastics and polymeric foam |
Dec. 4, 2001 |
| 6315931 |
Method of producing a foamed granulate |
Nov. 13, 2001 |
| 6303667 |
Foaming agents containing liquid carbon dioxide |
Oct. 16, 2001 |
| 6297342 |
Method and mixing head for producing a reaction mixture from an isocyanate and a higher-viscous polyol formulation |
Oct. 2, 2001 |
| 6273347 |
Pre-expanded particles of propylene resin, process for preparing the same and flow-restricting device |
Aug. 14, 2001 |
| RE37095 |
Extruded polymer foam with filler particles and method |
Mar. 13, 2001 |
| 6066017 |
Inflatable, noncollapsible, personal flotation device |
May. 23, 2000 |
| 6048909 |
Foams having increased heat distortion temperature made from blends of alkenyl aromatic polymers and alpha-olefin/vinyl or vinylidene aromatic and/or sterically hindered aliphatic or cycloalip |
Apr. 11, 2000 |
| 6005013 |
Gear throttle as a nucleation device in a continuous microcellular extrusion system |
Dec. 21, 1999 |
| 6005014 |
Apparatus and process for producing polymeric foam |
Dec. 21, 1999 |
| 5889064 |
Process and apparatus for producing a foamed polymer |
Mar. 30, 1999 |
| 5859081 |
Process for producing froth polyurethane foam |
Jan. 12, 1999 |
| 5723506 |
Extruded polymer foam with filler particles and method |
Mar. 3, 1998 |
| 5656678 |
Method and apparatus for the production of polyurethane foam using variable capacity trough |
Aug. 12, 1997 |
| 5624972 |
Manufacture of polymeric foams |
Apr. 29, 1997 |
| 5604267 |
Process for producing froth polyurethane foam |
Feb. 18, 1997 |
| 5578655 |
Apparatus and process for the production of frothed polyurethane foams |
Nov. 26, 1996 |
| 5521224 |
Method and apparatus for controlling the number of cells in polyurethane foam |
May. 28, 1996 |
| 5475037 |
Amorphous polyester foam |
Dec. 12, 1995 |
| 5472990 |
Method and apparatus for nucleation of polyurethane foam which results in self-adhering microcellular foam |
Dec. 5, 1995 |
| 5430072 |
Manufacture of polymeric foams |
Jul. 4, 1995 |
| 5409961 |
Rigid closed cell polyisocyanate based foams for use as positive flotation materials in watercraft |
Apr. 25, 1995 |
| 5360885 |
Process for the continuous production of polyurethane and polyurethane urea elastomers |
Nov. 1, 1994 |
| 5328938 |
On-site generation of polyurethane foam using an HCFC as a sole blowing agent |
Jul. 12, 1994 |
| 5306734 |
Use of viscosity as an in-line diagnostic for high internal phase emulsion generation |
Apr. 26, 1994 |
| 5296517 |
Process for continuous control of the cell number of polyurethane foams |
Mar. 22, 1994 |
| 5264464 |
On-site generation of polyurethane foam using an HCFC as a sole blowing agent |
Nov. 23, 1993 |
| 5252627 |
Apparatus and method for blending and dispensing foamable, curable organosiloxane compositions |
Oct. 12, 1993 |
| 5223552 |
Treatment of process air stream from rapid cooling of polyurethane foam |
Jun. 29, 1993 |
| 5157059 |
Method of and apparatus for producing a foamed mass of a polyurea elastomer |
Oct. 20, 1992 |
| 5149722 |
Dispersant for carbon black-filled foam |
Sep. 22, 1992 |
| 5089190 |
Method and apparatus for hollow core extrusion of high viscosity materials |
Feb. 18, 1992 |
| 5084486 |
Reactive feed stream to replace inert blowing agent feed stream in a polyurethane foam process |
Jan. 28, 1992 |
| 5079276 |
Method of manufacturing polyurethane foam |
Jan. 7, 1992 |
| 5055272 |
Method for producing polyurethane foam and apparatus therefor |
Oct. 8, 1991 |
| 5000882 |
Apparatus for the preparation of a free-flowing mixture of free-flowing components which reacts to form foam |
Mar. 19, 1991 |
| 4933115 |
Process for the production of a flowable mixture which reacts to form foam from flowable components stored in storage containers |
Jun. 12, 1990 |
| 4833175 |
Mixing process |
May. 23, 1989 |
| 4795763 |
Carbon black-filled foam |
Jan. 3, 1989 |
| 4721391 |
Impingement mixing device with auxiliary input and process for producing plastic parts |
Jan. 26, 1988 |
| 4693854 |
Generator for hair styling mousse |
Sep. 15, 1987 |
| 4636529 |
Polyurethane foams from isocyanate, polyester polyol and chlorodifluoromethane |
Jan. 13, 1987 |
| 4608233 |
Mixing method and apparatus for preparing multi-component plastic materials especially polyurethanes |
Aug. 26, 1986 |
| 4607061 |
Building material for building elements, and a method and a system for manufacturing said elements |
Aug. 19, 1986 |
| 4599208 |
Foam generator |
Jul. 8, 1986 |
| 4595709 |
Process for the production of isocyanate polyaddition products |
Jun. 17, 1986 |
| 4595565 |
Equipment for mixing liquid reactants |
Jun. 17, 1986 |
| 4590218 |
Method and apparatus for forming a chemical composition from cross-linking components and product of the method |
May. 20, 1986 |
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