Anti-stick composition for coating and detackifying uncured rubb

Details Anti-stick composition for coating and detackifying uncured rubb Anti-stick composition for coating and detackifying uncured rubb

1974-01-02

1976-01-27

Sebastian, Leland A.

Compositions

Preservative agents

Anti-caking, separative or protective coatings or zones

106 2, 252131, 252383, 260814, 260816, 427384, C08J 704, C08C 102

Patent

active

039351246

ABSTRACT:
A liquid anti-stick coating composition for coating and detackifying solid articles of uncured elastomeric materials, such as uncured rubber pellets, initially having sticky or tacky surface properties. The composition basically consists of an aqueous slurry containing a substantial proportion of finely divided particles of a kaolin clay, a sufficient amount of a water-soluble soap to provide bridging and tieing between the charge sites on the kaolin particles and the tacky surfaces of the uncured articles to thereby adhere a layer of a kaolin particles to the tacky surfaces, and a sufficient amount of water to disperse the clay particles. The coating composition may also include a dispersing and viscosity improving component such as sodium polyphosphate or a mixture of the latter and sodium sulfate for the purpose of maintaining the clay particles in suspension and maintaining the viscosity of the slurry at a workable level.

REFERENCES:
patent: 3002840 (1961-10-01), Kern et al.
patent: 3591410 (1971-07-01), Ross
patent: 3765911 (1973-10-01), Knowles et al.

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