Polyurethane forming no-bake foundry binders

Details Polyurethane forming no-bake foundry binders Polyurethane forming no-bake foundry binders

1998-02-28

2000-01-25

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523145, B22C 122

Patent

active

060179783

ABSTRACT:
This invention relates to a polyurethane no-bake foundry binder comprising (1) phenolic resin component which comprises (a) a phenolic resin, (b) hydrofluoric acid, and (c) a silane, and (2) an organic polyisocyanate component, and (3) a liquid tertiary amine catalyst component. The binders are used to prepare foundry mixes by mixing the binder with a foundry aggregate. Foundry shapes are prepared with the mixes by the no-bake process and are used to cast metal parts.

REFERENCES:
patent: 3409579 (1968-11-01), Robins
patent: 3485797 (1969-12-01), Robins
patent: 3676392 (1972-07-01), Robins
patent: 4028271 (1977-06-01), Schaidle et al.
patent: 4268425 (1981-05-01), Gardikes
patent: 4390675 (1983-06-01), Gruber
patent: 4495316 (1985-01-01), Armbruster
patent: 4946876 (1990-08-01), Carpenter

Affiliated with

Also associated with

Rating

Polyurethane forming no-bake foundry binders does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyurethane forming no-bake foundry binders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyurethane forming no-bake foundry binders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2316457