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US 5,205,963 AGranted
Vinyl chloride plastisol compositions containing optical brighteners and process for their production
AssigneeEMS-Togo AG
InventorsMarquina J. Brito, Ferreira J. Garcia
Life of this patent
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Abstract
Yellowing-resistant, overpaintable plastisol compositions based on vinyl chloride homo- or copolymers which contain optical brighteners and, preferably, strongly acid ion exchangers. They are especially suitable for overpaintable sealers, coatings, and adhesives, and find particular application in automobile body construction.
Claims21
A plastisol composition comprising homo- and/or copolymers of vinyl chloride, said composition further including 0.001% to 0.25% of at least one optical brightener.
A plastisol composition comprising
- a) 10 to 60 parts of vinyl chloride polymers,
- b) 20 to 60 parts of at least one plasticizer,
- c) 1 to 5 parts of an adhesion promotor,
- d) 5 to 60 parts of at least one additive selected from the group consisting of mineral fillers, organic fillers, pigments, and mixtures thereof,
- e) 0 to 5 parts of strongly acid ion exchanger, a) to e) totaling 100 parts,
- f) 10 to 2500 ppm, based on a) to e), of at least one optical brightener.
3 more elements
Dependencies are inferred from the claim text.