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Class Information
Number: 523/142
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Processes of preparing a desired or intentional composition of at least one nonreactant material and at least one solid polymer or specified intermediate condensation product, or product thereof > Composition related to metal foundry molding or metallurgical furnace or process of preparing > Organic polyisocyanate or derived from polyisocyanate
Description: Subject matter wherein the composition contains or reacts with a compound containing two or more N=C=X groups (wherein X is a chalcogen, i.e., O, S, Se, or Te) or wherein a solid polymer has been derived from a reactant containing two or more N=C=X groups (wherein X is a chalcogen, i.e., O, S, Se, or Te).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7119131 |
Urethane binder compositions for foundry applications |
Oct. 10, 2006 |
| 6720366 |
Binder system on the basis of polyurethane for molding material mixtures for use in the production of casting molds and cores |
Apr. 13, 2004 |
| 6664310 |
Hydrogenfluorides of aminosilanols and their use |
Dec. 16, 2003 |
| 6632856 |
Polyurethane-forming binders |
Oct. 14, 2003 |
| 6602931 |
Polyurethane-forming binders |
Aug. 5, 2003 |
| 6559203 |
Foundry binder systems containing an alkyl resorcinol and their use |
May. 6, 2003 |
| 6544445 |
Fire-resistant opening seal |
Apr. 8, 2003 |
| 6509392 |
Foundry binder and process |
Jan. 21, 2003 |
| 6465542 |
Binder system for moulding mixtures for the production of moulds and cores |
Oct. 15, 2002 |
| 6441060 |
Foundry binder of epoxy resin, acrylated polyisocyanate and acrylic |
Aug. 27, 2002 |
| 6387983 |
Foundry mixes containing an aliphatic mercaptan |
May. 14, 2002 |
| 6365646 |
Method to improve humidity resistance of phenolic urethane foundry binders |
Apr. 2, 2002 |
| 6342543 |
Amine curable foundry binder system |
Jan. 29, 2002 |
| 6291550 |
Solventless polyurethane no-brake foundry binder |
Sep. 18, 2001 |
| 6288139 |
Foundry binder system containing an ortho ester and their use |
Sep. 11, 2001 |
| 6271284 |
Sleeves, their preparation, and use |
Aug. 7, 2001 |
| 6136888 |
Binder system on the basis of polyurethane for molding material mixtures for use in the production of casting molds and cores |
Oct. 24, 2000 |
| 6133340 |
Sleeves, their preparation, and use |
Oct. 17, 2000 |
| 6124375 |
Foundry binder systems which contain alcohol modified polyisocyanates |
Sep. 26, 2000 |
| 6063833 |
Solventless polyurethane no-bake foundry binder |
May. 16, 2000 |
| 6040355 |
Foundry curing system |
Mar. 21, 2000 |
| 6037389 |
Amine cured foundry binder systems and their uses |
Mar. 14, 2000 |
| 6025452 |
Lignin based polyols |
Feb. 15, 2000 |
| 6015846 |
Method of improving the properties of reclaimed sand used for the production of foundry moulds and cores |
Jan. 18, 2000 |
| 6013695 |
Foundry binders containing modified polyisocyanates |
Jan. 11, 2000 |
| 5935713 |
Protective resistant composite material and projectile resistant composite body formed therefrom |
Aug. 10, 1999 |
| 5902840 |
Modified polymeric aromatic isocyanates having allophanate linkages |
May. 11, 1999 |
| 5880175 |
Amine cured foundry binder system and their uses |
Mar. 9, 1999 |
| 5880174 |
Amine modified polyisocyanates and their use in foundry binder systems |
Mar. 9, 1999 |
| 5859091 |
No-bake foundry mixes and their use |
Jan. 12, 1999 |
| 5852071 |
Biphenyl additive for improvement in urethane foundry binders |
Dec. 22, 1998 |
| 5792802 |
Biphenyl additive for improvement in urethane foundry binders |
Aug. 11, 1998 |
| 5786409 |
Foundry resins |
Jul. 28, 1998 |
| 5698613 |
Chemical binder |
Dec. 16, 1997 |
| 5688857 |
Polyurethane-forming cold-box binders and their uses |
Nov. 18, 1997 |
| 5648421 |
Isocyanate/polyol casting resin |
Jul. 15, 1997 |
| 5594046 |
Intumescent one-component sealant |
Jan. 14, 1997 |
| 5516859 |
Polyurethane-forming no-bake foundry binder systems |
May. 14, 1996 |
| 5473009 |
Mold material composition and method for preparing mold |
Dec. 5, 1995 |
| 5455287 |
Foundry mixes containing a polyether polyol and their use |
Oct. 3, 1995 |
| 5447968 |
Polyurethane-forming binder systems containing 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives |
Sep. 5, 1995 |
| 5338774 |
Polyurethane-forming binder systems containing a polyphosphoryl chloride |
Aug. 16, 1994 |
| 5286765 |
Process for the preparation of foundry cores and molds |
Feb. 15, 1994 |
| 5189079 |
Low free formaldehyde phenolic polyol formulation |
Feb. 23, 1993 |
| 5132339 |
Polyurethane-forming foundry binders containing a polyether polyol |
Jul. 21, 1992 |
| 5101001 |
Polyurethane-forming foundry binders and their use |
Mar. 31, 1992 |
| 4851457 |
Foundry resins |
Jul. 25, 1989 |
| 4847308 |
Composition, method for preparing and use thereof |
Jul. 11, 1989 |
| 4775704 |
Mold material for forming sandmold without requiring mold wash |
Oct. 4, 1988 |
| 4735973 |
Additive for sand based molding aggregates |
Apr. 5, 1988 |
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