Replasticization of an already manufactured flexible vinyl produ

Details Replasticization of an already manufactured flexible vinyl produ Replasticization of an already manufactured flexible vinyl produ

1985-04-15

1986-10-07

Childs, Sadie L.

Coating processes

Restoring or repairing

4273935, 427429, B32B 3500

Patent

active

046159100

ABSTRACT:
A process is described that can be employed in the field for preventing the formation of cracks and tears in already manufactured and fabricated flexible vinyl products from plasticizer loss induced embrittlement involving replasticization by spreading on the vinyl product a uniform coating of a liquid, vinyl plasticizer at temperatures between 4.degree. C. and 60.degree. C. followed by allowing the product to remain undisturbed for up to ten days at temperatures between 4.degree. C. and 60.degree. C. when the plasticizer will have been absorbed into the interior of the vinyl product as evidenced by the surface of the product exhibiting reduced resiliency, and feeling dry and non tacky to the touch.

REFERENCES:
patent: 2622038 (1952-12-01), Charlesworth
patent: 4131700 (1978-12-01), Guglielmo
Fujimura et al., "Supplemental Plasticization of Polyvinyl Chloride", Plastics Industry News, pp. 49-52, Apr. 1975.

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