Curing of polysulfide liquid polymers with zinc oxide and a sour

Details Curing of polysulfide liquid polymers with zinc oxide and a sour Curing of polysulfide liquid polymers with zinc oxide and a sour

1984-01-27

1985-05-21

Marquis, Melvyn I.

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

Synthetic resins

From sulfur-containing reactant

C08G 7504

Patent

active

045187673

ABSTRACT:
A curable liquid polysulfide polymer composition having improved toughness and tear resistance, comprising a major portion of a liquid organic polysulfide polymer having a molecular weight of about 500 to about 10,000 atomic mass units; zinc oxide; and a source of copper ions, preferably cupric acetate. In the preferred composition the liquid organic polysulfide polymer is a mixture of two polymers having different molecular weights.

REFERENCES:
patent: 3349057 (1967-10-01), Giordano
patent: 3505258 (1970-04-01), Panek et al.
patent: 3586660 (1971-06-01), Sakata et al.
patent: 3637612 (1972-01-01), Bertozzi
patent: 3714132 (1973-01-01), Nakanishi et al.

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