Claims
- 1. A plaster consistency reducing agent for reducing the amount of water required to be mixed with a dry plaster composition to form a pourable aqueous slurry consisting essentially of a potassium salt of naphthalene sulfonic acid condensate having a molecular weight between about 300 and 3,000, the potassium being present in an amount of about 0.10% to about 30% by weight expressed as K.sub.2 O, by weight of the condensate.
- 2. The plaster consistency reducing agent of claim 1 containing about 10% to about 30% potassium expressed as K.sub.2 O.
- 3. The plaster consistency reducing agent of claim 1 in which the condensate is naphthalene sulfonic acid formaldehyde condensate and contains about 0.10% to about 30% by weight of the condensate of potassium expressed as K.sub.2 O.
- 4. The plaster consistency reducing agent of claim 1 comprising the product of solubilizing a naphthalene sulfonic acid condensate in water with about 0.1% to about 5% by weight of a basic potassium compound selected from the group consisting essentially of potassium sulfate and potassium hydroxide; drying the solubilized material to a solid; and grinding the solid to a powder.
Parent Case Info
This is a division of application Ser. No. 893,853, filed Apr. 6, 1978 now U.S. Pat. No. 4,184,887.
US Referenced Citations (7)
Continuations (1)
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Number |
Date |
Country |
Parent |
893853 |
Apr 1978 |
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