Dust-free chalk

Dust-free chalk

The invention provides a dust-free chalk, which comprises the following components by mass part: 100 parts of calcium sulfate, 20-40 parts of titanium white, 40-60 parts of stearic acid, 10-30 parts of polyvinyl alcohol and 50-80 parts of water.

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Bibliographische Detailangaben
1. Verfasser: TENG SHIHUA
Format: Patent
Sprache:eng
Schlagworte:
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Beschreibung
Zusammenfassung:The invention provides a dust-free chalk, which comprises the following components by mass part: 100 parts of calcium sulfate, 20-40 parts of titanium white, 40-60 parts of stearic acid, 10-30 parts of polyvinyl alcohol and 50-80 parts of water.