Processes of applying urethane top coatings to resilient floor c

Details Processes of applying urethane top coatings to resilient floor c Processes of applying urethane top coatings to resilient floor c

1976-05-21

1977-11-22

Lusignan, Michael R.

Coating processes

Nonuniform coating

Applying superposed diverse coatings or coating a coated base

427265, 427270, 427276, 427278, 427288, 427407B, 427407D, 427407G, 427412, B05D 136, B05D 300, B05D 500

Patent

active

040597091

ABSTRACT:
In a process for manufacturing a resilient, resinous floor covering having a polyurethane surface coating, the in-line manufacturing improvement which comprises: applying to a foamable resinous sheet material a urethane coating composition having a viscosity in the range of from about 10 centipoises to about 100 centipoises, the application of the urethane coating composition being accomplished by a reverse-roll coating procedure wherein the casting ratio is in the range of from about 0.8:1 to about 1.1:1; and then, in an in-line manufacturing step, heating the coated, foamable, resinous sheet material to dry and to cure the urethane coating composition and to blow the foamable, resinous sheet material to form a resilient, resinous floor covering having a polyurethane surface coating, the curing of the urethane coating composition not being in excess of about 80% during the heating and blowing of the foamable resinous sheet material.

REFERENCES:
patent: 3278322 (1966-10-01), Harkins et al.
patent: 3574659 (1971-04-01), Kwart et al.

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