Modifiers for gypsum slurries and method of using them

Details Modifiers for gypsum slurries and method of using them Modifiers for gypsum slurries and method of using them

2011-04-26

2011-04-26

Mulcahy, Peter D (Department: 1796)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C524S005000, C524S130000, C106S778000

Reexamination Certificate

active

07932308

ABSTRACT:
An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.

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