Modified polyvinyl chloride composition

Details Modified polyvinyl chloride composition Modified polyvinyl chloride composition

1993-11-02

1995-06-27

Marquis, Melvyn I.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524288, 524296, 524507, 524569, 524776, 525129, C08K 509

Patent

active

054280877

ABSTRACT:
Finished articles made of flexible polyvinyl chloride (PVC) using plastisol technology are improved in terms of resistance to heat and solvents and reduction in plasticizer migration by incorporating into the traditional plastisol ingredients substantial amounts of blocked di- or polyisocyanates and di- or polyols and/or di- or polyamines, which, upon heating react with each other to form a polymer network within the article while the PVC is gelling.

REFERENCES:
patent: 3962370 (1976-06-01), Hutchinson
patent: 4154892 (1979-05-01), Glatti et al.
patent: 4581444 (1986-04-01), Fujino
patent: 4775558 (1988-10-01), Haas et al.
patent: 4785037 (1988-11-01), Ikeda et al.
patent: 5043379 (1991-08-01), Ota et al.

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