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Class Information
Number: 523/148
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 > Polyester based
Description: Subject matter wherein the composition contains a solid polymer derived from at least one polyol and at least one polycarboxylic acid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6662854 |
Cold-box foundry binder systems having improved shakeout |
Dec. 16, 2003 |
| 6479567 |
Furan no-bake foundry binders and their use |
Nov. 12, 2002 |
| 6391942 |
Furan no-bake foundry binders and their use |
May. 21, 2002 |
| 5698613 |
Chemical binder |
Dec. 16, 1997 |
| 5459178 |
Foundry mixes and their uses |
Oct. 17, 1995 |
| 5451620 |
Methods of producing light weight cement-like building products |
Sep. 19, 1995 |
| 5281644 |
Ambient temperature hardening binder compositions |
Jan. 25, 1994 |
| 4961458 |
Method of forming a die casting with coated expendable cores |
Oct. 9, 1990 |
| 4876294 |
Foundry binder systems based upon acrylated epoxy resins and epoxy resins |
Oct. 24, 1989 |
| 4867225 |
Coated expendable cores for die casting dies |
Sep. 19, 1989 |
| 4775704 |
Mold material for forming sandmold without requiring mold wash |
Oct. 4, 1988 |
| 4766943 |
Expendable die casting sand core |
Aug. 30, 1988 |
| 4735973 |
Additive for sand based molding aggregates |
Apr. 5, 1988 |
| 4579883 |
Binders for foundry sands |
Apr. 1, 1986 |
| 4568728 |
Foundry binder with improved breakdown and improved thermal reclamation properties |
Feb. 4, 1986 |
| 4413666 |
Expendable die casting sand core |
Nov. 8, 1983 |
| 4396571 |
Method of preparing resin coated foundry sand using unsaturated polyester |
Aug. 2, 1983 |
| 4371649 |
Process for binding aggregates with a vacuum-activated catalyst |
Feb. 1, 1983 |
| 4366269 |
Resin coated foundry sand using crystalline unsaturated polyester as binder |
Dec. 28, 1982 |
| 4330459 |
Method of manufacturing foundry sand molds |
May. 18, 1982 |
| 4246165 |
Preparation of coated casting sand using unsaturated polyester resin as binder |
Jan. 20, 1981 |
| 4195002 |
Water-dispersible coatings containing boron nitride for steel casting dies |
Mar. 25, 1980 |
| 4096293 |
Mold and core wash |
Jun. 20, 1978 |
| 4083823 |
No-bake foundry binder system |
Apr. 11, 1978 |
| 4075178 |
Organoaluminum compositions |
Feb. 21, 1978 |
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