Jordan J Kopac

US Patent:

45687285, Feb 4, 1986

Filed:

Jul 16, 1984

Appl. No.:

6/630925

Inventors:

Jordan J. Kopac - Franksville WI
Arek Khachaturian - Birmingham MI

Assignee:

Delta Resins & Refractories - Milwaukee WI

International Classification:

C08G 832

US Classification:

525504

Abstract:

A foundry binder for preparing shaped foundry products, said binder having improved breakdown, which binder comprises: (a) a resin component organic resin alkyd resins, furan resins, shell phenolic resins or acid setting phenolic resin and (b) a catalystic amount of a metal drier.

US Patent:

40790312, Mar 14, 1978

Filed:

Jul 14, 1976

Appl. No.:

5/705105

Inventors:

Kashinath S. Sardessai - Whitefish Bay WI
Jordan J. Kopac - Franksville WI

Assignee:

Delta Oil Products Corporation - Milwaukee WI

International Classification:

C08G 810
C08G 1848
B22C 122
C08K 506

US Classification:

260 37N

Abstract:

An improved binder resin is disclosed for use in a foundry process, comprising a major proportion of a resole phenolic resin and a minor proportion of a polyether polyol and a mutual solvent therefor, wherein the polyol has an average molecular weight between about 200 and 5000 and a hydroxy functionality of about 2 to 4. The improved binder is used in the foundry process by mixing it with a polyisocyanate and preferably an amine catalyst.

US Patent:

41487770, Apr 10, 1979

Filed:

May 9, 1977

Appl. No.:

5/794979

Inventors:

Russell A. LaBar - Grafton WI
Jordan J. Kopac - Franksville WI

Assignee:

Delta Oil Products Corporation - Milwaukee WI

International Classification:

B22C 122
C08G 828
C08G 1828

US Classification:

260 37N

Abstract:

An improved binder composition for use in the foundry process comprises a mixture of low molecular weight essentially mononuclear methylolated phenols which are cured through a reaction with a polyisocyanate. In the preferred embodiment, a minor amount of polyether polyol, a mutual solvent and a catalyst, preferably an amine catalyst, is mixed with the phenolic component.

US Patent:

46153721, Oct 7, 1986

Filed:

Jun 24, 1985

Appl. No.:

6/736336

Inventors:

Jordan J. Kopac - Franksville WI
Arek Khachaturian - Birmingham MI

Assignee:

Delta Resins & Refractories - Milwaukee WI

International Classification:

B22C 900

US Classification:

164 16

Abstract:

The addition of the metal drier to the phenolic urethane binder enhances the breakdown of the binder when the system is subjected to the elevated temperatures caused by pouring the molten metal into the mold and enhances the subsequent shake out of the sand from the cores and molds.