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Class Information
Number: 521/902
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Cellular polymer containing an isocyanurate structure
Description: Subject matter involving cellular products containing the isocyanurate structure, i.e.,
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7612120 |
Insulation boards and methods for their manufacture |
Nov. 3, 2009 |
| 7473716 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons |
Jan. 6, 2009 |
| 7205374 |
Two-part polyurethane adhesive for bonding insulation boards to a roof deck |
Apr. 17, 2007 |
| 7160930 |
Water blown polyurethane spray foam system |
Jan. 9, 2007 |
| RE38201 |
Amido functional amine catalysts for the production of polyurethanes |
Jul. 22, 2003 |
| 6586488 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons |
Jul. 1, 2003 |
| 6541530 |
Urethane-modified polyisocyanurate foam |
Apr. 1, 2003 |
| 6455605 |
Foamable composition exhibiting instant thixotropic gelling |
Sep. 24, 2002 |
| 6423757 |
Process for producing polymer foam using mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms |
Jul. 23, 2002 |
| 6156814 |
Amido functional amine catalysts for the production of polyurethanes |
Dec. 5, 2000 |
| 6086784 |
Premixes for the preparation of polyurethane or polyisocyanurate foams |
Jul. 11, 2000 |
| 5990184 |
Polyisocyanate based aerogel |
Nov. 23, 1999 |
| 5847014 |
Water blown, energy absorbing foams |
Dec. 8, 1998 |
| 5844014 |
Compressed, extruded, evacuated open-cell polymer foams and evacuated insulation panels containing them |
Dec. 1, 1998 |
| 5844012 |
Process and composition for improving the cure of water-blown molded polyurethane foam |
Dec. 1, 1998 |
| 5824711 |
N,N,N'-trimethylbis (Aminoethyl) ether substituted urea compostions for the production of polyurethanes |
Oct. 20, 1998 |
| 5800729 |
Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms |
Sep. 1, 1998 |
| 5760097 |
Methods of preparing polymeric microbeds |
Jun. 2, 1998 |
| 5710191 |
Hydroxymethyl quinuclidine catalyst compositions for making polyurethane foams |
Jan. 20, 1998 |
| 5693686 |
Foam-forming mixtures with decreased decomposition of hydrohalocarbon blowing agents |
Dec. 2, 1997 |
| 5684057 |
Three component polyol blend for use in insulating rigid polyurethane foams |
Nov. 4, 1997 |
| 5679718 |
Microcellular foams containing an infrared attenuating agent and a method of using |
Oct. 21, 1997 |
| 5677359 |
Three component polyol blend for use in insulating rigid polyurethane foams |
Oct. 14, 1997 |
| 5677358 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and hydrocarbons |
Oct. 14, 1997 |
| 5646196 |
C.sub.3 to C.sub.5 polyfluorcalkanes propellants |
Jul. 8, 1997 |
| 5645928 |
Heat insulation panels manufactured from modified polyisocyanurate foams |
Jul. 8, 1997 |
| 5627220 |
Process of the preparation of modified polyisocyanurate foams for heat insulation materials |
May. 6, 1997 |
| 5624970 |
C.sub.3 to C.sub.5 polyfluorcalkanes propellants |
Apr. 29, 1997 |
| 5562857 |
Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 2-methyl butane |
Oct. 8, 1996 |
| 5563180 |
Catalyst for polyisocyanurate foams made with alternative blowing agents |
Oct. 8, 1996 |
| 5561171 |
Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization |
Oct. 1, 1996 |
| 5550168 |
Process for producing modified polyisocyanurate foams |
Aug. 27, 1996 |
| 5514726 |
Polymer foams with inherent nonflammability and thermal stability and methods of preparation thereof |
May. 7, 1996 |
| 5512603 |
Hydroxy and amino functional pyrrolizidine catalyst compositions for the production of polyurethanes |
Apr. 30, 1996 |
| 5496866 |
C.sub.3 to C.sub.5 polyfluoroalkanes propellants |
Mar. 5, 1996 |
| 5496867 |
C.sub.3 to C.sub.5 polyfluoroalkanes propellants |
Mar. 5, 1996 |
| 5491174 |
Process for preparation of polyurethanes utilizing novel catalysts |
Feb. 13, 1996 |
| 5472988 |
Process for producing polyisocyanurate foams |
Dec. 5, 1995 |
| 5459171 |
Core discoloration preventing agents in the production of isocyanate-based foams |
Oct. 17, 1995 |
| 5457138 |
Method for producing open cell rigid polyurethane foam |
Oct. 10, 1995 |
| 5405885 |
Rigid polyurethane/polyisocyanate foams containing paraffinic based oils |
Apr. 11, 1995 |
| 5405884 |
Catalyst for polyisocyanurate foams made with alternative blowing agents |
Apr. 11, 1995 |
| 5395859 |
Catalysts which stabilize hydrohalocarbon blowing agent in polyisocyanurate foam formulations during polymerization |
Mar. 7, 1995 |
| 5391317 |
Process for preparing a polyurethane foam in the presence of a hydrocarbon blowing agent |
Feb. 21, 1995 |
| 5387618 |
Process for preparing a polyurethane foam in the presence of a hydrocarbon blowing agent |
Feb. 7, 1995 |
| 5385878 |
Method for producing modified polyisocyanurate foams |
Jan. 31, 1995 |
| 5380768 |
Foam, Foam-resin composite and method of making a foam-resin composite |
Jan. 10, 1995 |
| 5362764 |
Surfactant for polyisocyanurate foams made with alternative blowing agents |
Nov. 8, 1994 |
| 5342859 |
Method of producing rigid foams and products produced therefrom |
Aug. 30, 1994 |
| 5336749 |
Alicyclic diamines, alicyclic diisocyanates and polyisocyanato-isocyanurates and method for the preparation thereof |
Aug. 9, 1994 |
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