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Class 264/54 - Chemical blowing


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes in which the voids are formed by the generation
No. of patents: 680
Last issue date: 01/10/2012


1                      
NumberTitleIssue Date
8092730Molded rotatable base for a porous pad
A rotatable base for a porous pad has openings that provide for improved flow distribution of a liquid in the base across a substrate. The rotatable base can be molded from a two piece mold and the openings can have draft angles to facilitate the molding process.
01/10/2012
7459109Method for manufacturing foam pads
A method for manufacturing foam pads includes a first step of preparing a proper amount of PVC power, DOP curing agent, light calcium carbonate, kaolin, foaming agent and pigment and pouring them into a blending device to be blended and form a liquid starchy materia...
12/02/2008
7435365Method of fabricating hollow foamed-rubber member
A method of making a hollow foaming member is to utilize the foaming agents with various decomposition speeds or gas issued into the rubber sheet in the die while vulcanization and foaming. As a result, the foaming member made by the method of the present invention ...
10/14/2008
7390446Foamed supramolecular polymers
Process for the preparation of foamed supramolecular polymers characterized in that the foaming of the supramolecular polymer is carried out in the presence of blowing agents. ...
06/24/2008
7361617Fire resistant composite material and fabrics therefrom
The present invention relates to fire resistant composite materials and to fire resistant fabric materials and mattresses made therefrom. The composite materials include (a) a substrate selected from the group consisting of cotton, rayon, lyocell and blends thereof;...
04/22/2008
7361294Injection molding of polymeric material
Injection molding systems and methods useful for making microcellular foamed materials are provided as well as microcellular articles. Pressure drop rate and shear rate are important features in some embodiments, and the invention provides systems for controlling th...
04/22/2008
7341683Method of manufacturing foamed polyethylene films and related products
The present invention solves the problems left unaddressed by the prior known processes by providing a method to produce foamed-thermoplastic films of sufficient strength for use in consumer trash-bag applications utilizing high strength thermoplastic resins. Most b...
03/11/2008
7329374Method for manufacturing resing films
A method for manufacturing resin films includes steps of mixing PU resin and hydroxyl compound to become a first-kind first-phase mixture, and of mixing a pigment with a foaming agent to become a second-kind mixture, of injecting the first-kind mixture into a kneadi...
02/12/2008
7316985Breathable and waterproof lining structure for footwear and garment
A waterproof and breathable lining structure includes a sheet-like waterproof and breathable foaming cushion layer made of a composition of a predetermined amount of low density polyethylene (LDPE) and a predetermined amount of foaming agent such as azodicarbonamide...
01/08/2008
7314561Method for purifying water
An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita...
01/01/2008
7311864Articles of manufacture made from coffee bean residue, and methods for making such articles
Coffee bean residue is a primary constituent of new thermosetting polymer compositions and articles of manufacture. The articles are made by compression molding and curing of one or more thermosetting polymer resins blended with coffee bean residue. Other additives ...
12/25/2007
7299535Methods for making data storage media and the resultant media
Methods for forming data storage media and the media formed thereby are disclosed herein. In one embodiment, the method for forming a data storage media, comprises: injection molding a substrate comprising surface features, wherein said surface features have greater...
11/27/2007
7288196Plant matter packaging method
An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita...
10/30/2007
7273571Molded table and its method of manufacture
A plastic table structure includes a tabletop comprising a thin polymer shell layer surrounding an expanded foam core. The multiple layers of the finished tabletop are molded concurrently in a one-pass biaxial or centrifugal rotational molding process, and cured in ...
09/25/2007
7267909Battery separators containing reactive functional groups
A battery separator having a thermal shutdown mechanism and exhibiting excellent mechanical properties and low electrical resistance includes a water-scavenging and/or acid-scavenging material having reactive functional groups that chemically react with water or aci...
09/11/2007
7267773Integrated system and method for purifying water, producing pulp and paper, and improving soil quality
An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita...
09/11/2007
7262351Piano hammer
A piano hammer comprises an elongate hammer head having a nose portion defining side surfaces and a felt covering extending about the nose portion with tail portions of the felt covering affixed to the side surfaces. The felt covering defines a substantially ellipti...
08/28/2007
7255819Method of manufacturing game ball
Disclosed is a process for producing the baseball or softball for child, for exercise and for toy that has good security characteristics and similar playing characteristics to a conventional game ball. The invention provides the process of manufacturing a game ball ...
08/14/2007
7250125Method of fabricating foamed rubber member
A method of making a foamed rubber member includes the steps of: a) Stirring and pressing the foaming raw material repeatedly, wherein the foaming raw material has rubber, an accelerator, and foaming agent mixed in a predetermined ratio. b) Molding the foaming raw m...
07/31/2007
7250124Structural reinforcement article and process for preparation thereof
The invention is a process for the preparation of article comprising placing a film on each inner surface of each part of a two part mold; placing an article in the mold with film located between the surface of the mold and the article such that there is a small spa...
07/31/2007
7220374Molded foam vehicle energy absorbing device and method of manufacture
A method for forming energy absorbing components for motor vehicles includes mixing a polymeric resin and blowing agent combination. The combination is heated to liquefy it. A mold for receiving the liquefied combination is cooled. The liquefied combination is injec...
05/22/2007
7201958Polymer foam plank with densified skin, method and apparatus for producing a densified skin on a foam plank
A method and apparatus for making a densified skin polymer foam plank comprising providing a polymer foam having a plurality of cells and heating an outer surface of the foam at a heating station. The heating step collapses and melts the cells adjacent the outer sur...
04/10/2007
7195815Process for producing foamed body of thermoplastic resin, mold for forming same and foamed body of thermoplastic resin
The invention provides a foamed body of thermoplastic resin having a high expansion ratio, desired shape and cells of desired diameter, especially fine cells. The foamed body of thermoplastic resin is produced by filling the thermoplastic resin containing a foaming ...
03/27/2007
7192620Mold-release coating systems
A mold-release coating system includes a barrier coating of a substantially liquid wax material. The wax material is deposited onto the mold surface. The wax material includes about 7 to about 10 weight percent solids. The wax material is permitted to substantially ...
03/20/2007
7189667Sponge towel based on cellulose and a method for producing the same
The invention relates to a sponge cloth based on cellulose and having an internal reinforcement, obtainable by the amine oxide process. In the process, a solution of cellulose in an aqueous amine oxide is first produced, which is then mixed with at least one pore fo...
03/13/2007
7186457Cellulosic composite component
A component such as a siding panel comprised of a PVC/wood flour composite. Another embodiment is a component such as a siding panel that is made from a PVC/CPE/wood flour composite. The cellulosic composite may be extruded through a die and then bent into the shape...
03/06/2007
7183020Separator for battery and lithium ion battery using the same
A battery separator of the invention is obtained by press forming a meltblown nonwoven fabric comprising 4-methyl-1-pentene polymer or a 4-methyl-1-pentene/α-olefin copolymer, the battery separator having an average fiber diameter of 0.8 to 5 μm, a basis weight of...
02/27/2007
7179551Poly(arylene ether) data storage media
A storage media comprises: a substrate comprising a plastic resin portion, wherein to plastic resin portion comprises poly(arylene ether) and a styrene material selected from the group consisting of polystyrene, styrenic copolymer(s), and reaction products and combi...
02/20/2007
7179410Foam plastics manufacturing method and machine
Production of foamed materials in a horizontal machine, and said machine itself, reactants being fed to a conveyor at one end of the machine and foam produced being removed at the other end, wherein the foam is generated in an expansion chamber defined at its inlet ...
02/20/2007
7175702Naturally decomposing disposable tableware and manufacturing thereof
Disclosed is disposable tableware which is completely degradable under environmental conditions without environmental contamination. The disposable tableware is prepared using environmentally friendly, completely degradable materials without additional chemical addi...
02/13/2007
7172403Apparatus for preparing a gypsum wallboard core
A gypsum wallboard core, and methods and apparatus for making the same are disclosed. Methods of making a gypsum wallboard core include extruding a gypsum slurry containing water, gypsum, slip agents, water-reducing agents, surfactants and, optional additives, throu...
02/06/2007
7173070Foam cushion and method of making and using the same
The present invention provides a foam cushion, a method of making the foam cushion, and a method of using the foam cushion. The foam cushion is formed from: (a) at least one of rubber and a resin; (b) a blowing agent; (c) a polymeric adhesion modifier; (d) a decompo...
02/06/2007
7169339Method for producing polymethacrylimide foams
The invention relates to an improved method for producing foamed material, especially poly(meth)acrylimide foams, which are foamed from polymer plates produced according to the casting method. The two-step method consists of a pre-heating step and at least one foami...
01/30/2007
7166248Reduced VOC emission alkenyl aromatic polymer foams and processes
A method for producing an alkenyl aromatic polymer foam structure that comprises melting at least one alkenyl aromatic polymer resin. An effective amount of blowing agent mixture is dissolved in the at least one alkenyl aromatic polymer. The blowing agent mixture co...
01/23/2007
7160939Active masterbatch for production of CO2 generating masterbatch
A compound permitting the economic production of packaging containers, which when activated produces concentrated amounts of CO2 gas for extended periods for preservation of perishable products therein, comprises a mixture including a CO2 generating portion incorpor...
01/09/2007
7153113Molds having a veneered pedestal for forming a foam object
A mold shim or insert is disclosed, which is placed between the surface of a forming mold or mold magnet and a fastener strip that is to be molded into a foam object. The mold shim compensates for the variability of the mold surface and provides a more even surface ...
12/26/2006
7140865Apparatus for making a corrugation-free foam
A method and apparatus for extruding a corrugation-free polystyrene foam with 100% carbon dioxide as the blowing agent by extruding the extrudate through an annular die opening so that it contacts a choke ring inner surface. A foam made with the apparatus according ...
11/28/2006
7138079Methods for making foamed elastomer gels
Methods for making foamed elastomer gels are disclosed. Chemical foaming agents may be incorporated or gas may be injected into a molten gel and then using heating and cooling techniques and/or additives, gas bubbles are formed and preserved in the cooled and solidi...
11/21/2006
7138477Compositions for golf equipment
Golf balls comprising thermoplastic, thermoset, castable, or millable elastomer compositions are presently disclosed. These elastomer compositions comprise reaction products of polyisocyanates and telechelic polymers having isocyanate-reactive end-groups such as hyd...
11/21/2006
7135063Resilient biodegradable packaging materials
Biodegradable starch-based extruded products and methods of manufacturing those products are provided. In particular, extruded starch products processed by compression, stretching or compression and stretching provide excellent flexibility, pliability, dimensional s...
11/14/2006
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