Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1978-12-08
1981-03-31
Henderson, C. A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
260 4227, 260959, 428421, 525340, 525350, C08F 840, C08F21422
Patent
active
042594634
ABSTRACT:
There are disclosed vulcanizable compositions of vinylidene fluoride copolymer elastomers comprising, in addition to the elastomeric fluoride copolymer, an inorganic acid acceptor, a basic compound, a polyhydroxy or polythiol vulcanizing agent, and an aminophosphinic compound of the class of phosphoraneamine and phosphorimidic acid triamide. The presence of the aminophosphinic compound facilitates satisfactory vulcanization rates without scorching. The vulcanized fluorinated elastomers produced therefrom may be used as gaskets for sealing purposes and as protective layers in contact with corrosive chemical agent. They are particularly useful in applications requiring strong adhesion to metallic surfaces even under severe temperature conditions.
REFERENCES:
patent: 3655727 (1972-04-01), Patel
patent: 3752787 (1973-08-01), de Brunner
patent: 3920620 (1975-11-01), Ceccato
patent: 4018822 (1977-04-01), Sharma
patent: 4027086 (1977-05-01), Lo Valvo
patent: 4032699 (1977-06-01), West
patent: 4062830 (1977-12-01), Ceccato
Mancini Livio
Moggi Giovanni
Henderson C. A.
Montedison S.p.A.
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