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Class Information
Number: 521/57
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. > Particle which is expandible, process of preparing an expandible particle, or process of expanding a particle to form a cellular product > Including step of surface coating a particle or process of expanding a surface coated particle
Description: Subject matter wherein (1) a particle of a solid polymeric material is surface coated and wherein the particle or the coating is expandable or is expanded in a later processing step; or (2) a particle is coated with a polymeric containing material and the base or coating is expandable or expanded in a later processing step.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7351752 |
Thermo-expansive microspheres, their production process and their application |
Apr. 1, 2008 |
| 7297718 |
Method of producing substantially spherical lyogels in water insoluble silylating agents |
Nov. 20, 2007 |
| 7294655 |
Coating composition for thermoplastic resin particles for forming foam containers |
Nov. 13, 2007 |
| 7259189 |
Expanded polypropylene resin beads and process for the production thereof |
Aug. 21, 2007 |
| 6956067 |
Expanded polypropylene resin bead and process of producing same |
Oct. 18, 2005 |
| 6866936 |
Articles with hydrophilic coating |
Mar. 15, 2005 |
| 6864298 |
Expandable polyolefin particles |
Mar. 8, 2005 |
| 6800666 |
Hydrophilic, open-cell, elastic foams with a melamine/formaldehyde resin base, production thereof and use thereof in hygiene products |
Oct. 5, 2004 |
| 6746759 |
Cellular plastic material based on phenolic resin |
Jun. 8, 2004 |
| 6743830 |
Construction board materials with engineered microstructures |
Jun. 1, 2004 |
| 6667350 |
Calcium borate infused foam building materials and the like and method of making same |
Dec. 23, 2003 |
| 6646018 |
Anti-lumping compounds for use with expandable polystyrene beads |
Nov. 11, 2003 |
| 6476088 |
Polyolefin foam beads having high density crust and method for manufacturing the same |
Nov. 5, 2002 |
| 6476087 |
Method of manufacturing syntactic foam |
Nov. 5, 2002 |
| 6444714 |
Method for producing expandable polystyrene particles |
Sep. 3, 2002 |
| 6355698 |
Substantially anhydrous foaming agent and process for producing the same |
Mar. 12, 2002 |
| 6350511 |
Melamine resin foam |
Feb. 26, 2002 |
| 6277491 |
Expandable thermoplastic resin beads and molded foam made from the same |
Aug. 21, 2001 |
| 6274231 |
Support with super-absorbent material, method for the preparation thereof and use |
Aug. 14, 2001 |
| 6271272 |
Expandable polystyrene composition, expanded beads and moulded parts |
Aug. 7, 2001 |
| 6238799 |
Articles prepared from water-based hydrophilic coating compositions |
May. 29, 2001 |
| 6225361 |
Expanded hollow micro sphere composite beads and method for their production |
May. 1, 2001 |
| 6221926 |
Expandable polystyrene resin beads, process for the preparation of them, and foam made by using the same |
Apr. 24, 2001 |
| 6214895 |
Method for making a polyvinyl acetal sponge packing for use in the nasal, sinus and otic cavities |
Apr. 10, 2001 |
| 6214260 |
Conductive elastomeric foams by in-situ vapor phase polymerization of pyrroles |
Apr. 10, 2001 |
| 6153658 |
Process for the preparation of polymer particles |
Nov. 28, 2000 |
| 6150427 |
Foaming propylene copolymer, and foamed particles and foams thereof |
Nov. 21, 2000 |
| 6147130 |
Process for the production of expandable particles of styrene polymers |
Nov. 14, 2000 |
| 6136396 |
Polymeric articles having antistatic properties and methods for their manufacture |
Oct. 24, 2000 |
| 6130265 |
Method for producing expandable styrene polymers containing graphite particles |
Oct. 10, 2000 |
| 6046246 |
Process for making fluorinated polymer adsorbent particles |
Apr. 4, 2000 |
| 6043319 |
Method of preparing void type plastic pigment |
Mar. 28, 2000 |
| 6020387 |
Low density polymers and methods of making and using same |
Feb. 1, 2000 |
| 6005012 |
Method for producing hydrophobic aerogels |
Dec. 21, 1999 |
| 5985943 |
Expandable polystyrene particles |
Nov. 16, 1999 |
| 5981070 |
Water-absorbent agent powders and manufacturing method of the same |
Nov. 9, 1999 |
| 5877226 |
Thermal insulating foamed material having carbon dioxide adsorbents and method for manufacturing the same |
Mar. 2, 1999 |
| 5859074 |
Treating interparticle bonded aggregates with latex to increase flexibility of porous, absorbent macrostructures |
Jan. 12, 1999 |
| 5801207 |
Biodegradable foamed articles and process for the preparation thereof |
Sep. 1, 1998 |
| 5747548 |
Compartmented thermoplastic pellets |
May. 5, 1998 |
| 5736594 |
Cementing compositions and methods using recycled expanded polystyrene |
Apr. 7, 1998 |
| 5734043 |
Separating agent for optical isomers |
Mar. 31, 1998 |
| 5728742 |
Absorbent polymers having a reduced caking tendency |
Mar. 17, 1998 |
| 5712315 |
Polytetrafluoroethylene molding resin and processes |
Jan. 27, 1998 |
| 5688449 |
Method of forming and extruding an additive-coated resin composition |
Nov. 18, 1997 |
| 5658960 |
Polytetrafluoroethylene molding resin and processes |
Aug. 19, 1997 |
| 5646192 |
Polytetrafluoroethylene molding powder |
Jul. 8, 1997 |
| 5627218 |
Compartmented thermoplastic pellets |
May. 6, 1997 |
| 5621015 |
Process for the treating of surfaces of thermoplastic additives |
Apr. 15, 1997 |
| RE35447 |
Endothermic blowing agents for strengthening weld lines in molded thermoplastic resins and products |
Feb. 11, 1997 |
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