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Class Information
Number: 521/51
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Cellular products or processes of preparing a cellular product, e.g., foams, pores, channels, etc. > Processes of preparing a cellular product having an integral skin
Description: Subject matter involving a process of preparing a cellular product having an integral skin.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8679620 Foamed product and manufacturing method of the same Mar. 25, 2014
8436064 Open-cell polyurethane foam and process for its manufacture May. 7, 2013
8277719 Process for the preparation of auxetic foams Oct. 2, 2012
8227075 Foamed product and manufacturing method of the same Jul. 24, 2012
8221876 Skin-covered propylene resin foamed molded article Jul. 17, 2012
8153701 Extrusion of a foamable fluoropolymer Apr. 10, 2012
8148437 Integral polyurethane foams comprising dialkyl cyclohexanedicarboxylates as internal mold release agent Apr. 3, 2012
8067476 Foamed thermoplastic polyurethanes Nov. 29, 2011
7652075 Surface-compacted foam Jan. 26, 2010
7361693 Low density polymer beads Apr. 22, 2008
7202284 Foamed thermoplastic polyurethanes Apr. 10, 2007
6881763 Plastic material Apr. 19, 2005
6867239 Plastic material Mar. 15, 2005
6864296 Plastic material Mar. 8, 2005
6797738 Open pore biodegradable matrices Sep. 28, 2004
6767928 Mineralization and biological modification of biomaterial surfaces Jul. 27, 2004
6759443 Polyurethane foam composition and additive useful in shoe sole applications and methods of making same Jul. 6, 2004
6759444 Integral skin foams employing pentafluorobutane blowing agents Jul. 6, 2004
6620356 Porous constructs fabricated by gas induced phase inversion Sep. 16, 2003
6590003 Method for producing soft to semi-rigid polyurethane integral foamed materials Jul. 8, 2003
6572954 Electromechanical component Jun. 3, 2003
6562374 Biodegradable porous polymer scaffolds for tissue engineering prepared from an effervescent mixture and its preparation May. 13, 2003
6521676 Use of polyether-polyurethane for safety clothing Feb. 18, 2003
6506331 Method for the preparation of low specific gravity silicone rubber elastomers Jan. 14, 2003
6486224 Polyurethane elastomers having improved hydrolysis resistance Nov. 26, 2002
6479561 Colored polyurethane surface coatings Nov. 12, 2002
6472442 Grasping parts Oct. 29, 2002
6420447 Viscoelastic damping foam having an adhesive surface Jul. 16, 2002
6395382 Sponge sheet May. 28, 2002
6331577 Process for producing elastic polyurethane moldings with compact surfaces and cellular cores Dec. 18, 2001
6331576 Surface-decorated foam skin of cross-linked rubbery soft olefin resin Dec. 18, 2001
6329439 Extrusion of a foamable melt consisting of mixed polyolefin and rubber copolymer Dec. 11, 2001
6281256 Open pore biodegradable matrices Aug. 28, 2001
6277896 Method for manufacturing a monolithic plastic object, and an object obtained with this method Aug. 21, 2001
6248856 One-shot polyurethane elastomers with very low compression sets Jun. 19, 2001
6235800 Heat-expandable microcapsules and method of utilizing the same May. 22, 2001
6235806 Open-celled rigid polyurethane foam and method for producing the same May. 22, 2001
6235799 Method for producing soft to medium-hard structural polyurethane foams May. 22, 2001
6184259 Material containing expandable microspheres and process for the production thereof Feb. 6, 2001
6180686 Cellular plastic material Jan. 30, 2001
6169124 Inner parting agents for producing self-parting moldings made of polyisocyanate polyaddition products Jan. 2, 2001
6136879 Soft polyurethane foam, method of producing the same and vehicle interior member using the same Oct. 24, 2000
6107355 Production of polyurethane foams Aug. 22, 2000
6103153 Production of foamed low-density polypropylene by rotational molding Aug. 15, 2000
6090479 Shape-recoverable resin foamed product Jul. 18, 2000
6076192 Headwear piece with projecting bill Jun. 20, 2000
6063485 Foamed articles of styrenic and acrylic polymers blend May. 16, 2000
6048608 Opaque oriented polypropylene film Apr. 11, 2000
6045899 Highly assymetric, hydrophilic, microfiltration membranes having large pore diameters Apr. 4, 2000
6031010 Polyurethane foam composition having improved flex fatigue Feb. 29, 2000

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