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Class Information
Number: 521/136
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. > Cellular product derived from two or more solid polymers or from at least one solid polymer and at least one polymer-forming system > At least one polymer is derived from an aldehyde or derivative or wherein the polymer-forming system contains the same type of reactant
Description: Subject matter wherein at least one of the polymers is derived from an aldehyde or aldehyde derivative.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7273894 |
Compositions for the preparation of void-containing articles |
Sep. 25, 2007 |
| 7115673 |
Photosensitive resin composition, porous resin, circuit board, and wireless suspension board |
Oct. 3, 2006 |
| 6841584 |
Reinforced phenolic foam |
Jan. 11, 2005 |
| 6797737 |
Crosslinked foam of ethylene vinyl acetate copolymer and acid copolymer |
Sep. 28, 2004 |
| 6790870 |
Methods of making foamed materials of blended thermoplastic polymers using carbon dioxide |
Sep. 14, 2004 |
| 6727293 |
Novolac-epoxy resin foam, foamable composition for making novolac-epoxy resin foam and method of making novolac-epoxy resin foam |
Apr. 27, 2004 |
| 6607817 |
Melamine resin foam with excellent oil repellency |
Aug. 19, 2003 |
| 6541530 |
Urethane-modified polyisocyanurate foam |
Apr. 1, 2003 |
| 6492432 |
Novolac-epoxy resin foam, foamable composition for making novolac-epoxy resin foam and method of making novolac-epoxy resin foam |
Dec. 10, 2002 |
| 6455602 |
High-speed processable cellular insulation material with enhanced foamability |
Sep. 24, 2002 |
| 6031012 |
Curable composition, foam produced therefrom, and process for producing the foam |
Feb. 29, 2000 |
| 5990184 |
Polyisocyanate based aerogel |
Nov. 23, 1999 |
| 5973015 |
Flexible aerogel composite for mechanical stability and process of fabrication |
Oct. 26, 1999 |
| 5945084 |
Low density open cell organic foams, low density open cell carbon foams, and methods for preparing same |
Aug. 31, 1999 |
| 5900320 |
Foamed plastic and method of manufacturing the same |
May. 4, 1999 |
| 5859082 |
Composition and method for insulating foam |
Jan. 12, 1999 |
| 5801205 |
Reprocessed resin formed of thermoset resin formed material, method for reprocessing thermoset resin foamed material and method for molding molded article formed of the reprocessed resin |
Sep. 1, 1998 |
| 5731360 |
Compression molding of aerogel microspheres |
Mar. 24, 1998 |
| 5627219 |
Formed plastic and method of manufacturing the same |
May. 6, 1997 |
| 5587220 |
Formed plastic and method of manufacturing the same |
Dec. 24, 1996 |
| 5569724 |
N-menthylol derivatives of polycondensation products, their preparation and use |
Oct. 29, 1996 |
| 5547996 |
Method of producing foamed polymer materials |
Aug. 20, 1996 |
| 5461083 |
Formed plastic and method of manufacturing the same |
Oct. 24, 1995 |
| 5413853 |
Melamine resin foam |
May. 9, 1995 |
| 5385778 |
Toughened thermosetting resin composites and process |
Jan. 31, 1995 |
| 5373027 |
Dry expansible sealant and baffle composition and product |
Dec. 13, 1994 |
| 5281632 |
Cellular polymer containing perforated cell windows and a process for the preparation thereof |
Jan. 25, 1994 |
| 5266133 |
Dry expansible sealant and baffle composition and product |
Nov. 30, 1993 |
| 5250579 |
Cellular polymer containing perforated cell windows and a process for the preparation thereof |
Oct. 5, 1993 |
| 5238966 |
Rigid polyvinyl chloride foam material |
Aug. 24, 1993 |
| 5205290 |
Low density microspheres and their use as contrast agents for computed tomography |
Apr. 27, 1993 |
| 5153233 |
Stabilization of melamine and/or urea dispersions in polyols and polymer polyols |
Oct. 6, 1992 |
| 5118722 |
Method of producing elastic foams having a base of polyurethane by microwave foaming |
Jun. 2, 1992 |
| 5107068 |
Polyurethane resin and utilization thereof |
Apr. 21, 1992 |
| 5086082 |
Ignition resistant polyurethane foams with melamine |
Feb. 4, 1992 |
| 5075414 |
Resorcinol-modified phenolic resin binder for reinforced plastics |
Dec. 24, 1991 |
| 5075413 |
Resorcinol-modified phenolic resin binder for reinforced plastics |
Dec. 24, 1991 |
| 5064868 |
Sprayable lightweight ablative coating |
Nov. 12, 1991 |
| 5059629 |
Biocidal foams |
Oct. 22, 1991 |
| 5059637 |
Endothermic fire protective material |
Oct. 22, 1991 |
| 5047225 |
Low density carbonized composite foams |
Sep. 10, 1991 |
| 5037859 |
Composite foams |
Aug. 6, 1991 |
| 5019599 |
Deodorizing urethane foam and process for its production |
May. 28, 1991 |
| 5010111 |
Flame resistant, expandable styrene polymers and foams, and flame retardants |
Apr. 23, 1991 |
| 5008297 |
Method for producing phenol resin foams and method of making foamed laminates |
Apr. 16, 1991 |
| 5004760 |
Biocidal foams |
Apr. 2, 1991 |
| 4992254 |
Low density carbonized composite foams |
Feb. 12, 1991 |
| 4966919 |
Composite foams |
Oct. 30, 1990 |
| 4939182 |
Melamine-alkanolamine condensates and polyurethanes prepared therefrom |
Jul. 3, 1990 |
| 4882364 |
Process for manufacturing closed cell phenolic foams |
Nov. 21, 1989 |
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