Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1990-06-15
1993-03-02
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523213, 524188, 106490, B22C 122, C08K 906, C08J 303, C04B 1404
Patent
active
051909936
ABSTRACT:
The present invention provides methods for treating reclaimed sand obtained from dismantled foundry molds and cores which contain a cured binder derived from an ester cured alkaline phenolic resin. Treatment of the reclaimed sand with a silane solution, particularly an aqueous solution, enhances the tensile strengths of foundry molds and cores produced therefrom beyond those obtained with untreated reclaimed sand. Methods for producing foundry cores and molds which incorporate such a treatment process are also provided by this invention as are raw batch formulations.
REFERENCES:
patent: 3008205 (1967-01-01), Blaies, Jr.
patent: 3234159 (1967-02-01), Cooper
patent: 3306864 (1967-02-01), Lang
patent: 3403721 (1968-01-01), Robins
patent: 3487043 (1968-06-01), Grudus
patent: 3599433 (1971-08-01), Murata
patent: 3629364 (1972-01-01), Soldatos
patent: 3632844 (1972-01-01), Robins
patent: 3639658 (1972-02-01), Soldatos
patent: 3642503 (1972-02-01), Beaney
patent: 3696622 (1972-09-01), Tohma
patent: 3720642 (1973-03-01), Junger
patent: 3905934 (1975-09-01), Gardikes
patent: 3920460 (1975-11-01), Boston
patent: 4033910 (1977-07-01), Papa
patent: 4111253 (1978-09-01), Epstein
patent: 4118540 (1978-09-01), Amort
patent: 4166799 (1979-06-01), Biacobbe
patent: 4215012 (1980-07-01), Kho
patent: 4240948 (1980-12-01), Huck
patent: 4256623 (1981-03-01), Sunger
patent: 4283319 (1981-08-01), Konii
patent: 4426467 (1984-01-01), Quist
patent: 4468359 (1984-08-01), Lemon
patent: 4474904 (1984-10-01), Lemon
patent: 4597991 (1986-07-01), Graham
patent: 4780489 (1988-10-01), Dunnavant et al.
patent: 4789693 (1988-12-01), Jhaveri et al.
Union Carbide Bulletin "Union Carbide Silanes as Additives for Foundry Resins" (Apr. 1968) pp. 1-5.
Union Carbide Organofunctional Silane A-1100 Product Info. Publication.
"Silane Coupling Agents as Integral Blends in Resin-Filler Systems" Art.
FOSECO Product Data Sheet.
ECOLOTEC Publication.
FENOTEC Sand Binder System Bulletin.
Betaset Process Introduction.
"The Betaset Process for the Rapid Production of Moulds and Cores", Lemon et al.
Gardiner et al. Publication "Molecular Weight Distribution Measurements of Phenolic Resins".
Ishida Publication, "Molecular Weight of Phenolic Resins".
Tobiason et al. Publication, "Molecular Weight of Phenolic Resins".
Union Carbide Organofunctional Silane A-1106 Product Information Pub.
S.C.R.A.T.A. Article, "Experience of Reclaiming Alphaset Bonded Sand".
"Reclamation of Phenolic Ester Cured Nobake Sands", Iyer et al., AFS Transactions, published Apr. 28, 1988, pp. 611-618.
Borden Inc.
Michl Paul R.
Niland Patrick
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