Oil filters using water-based latex binders

Details Oil filters using water-based latex binders Oil filters using water-based latex binders

1984-10-29

1986-11-18

Hruskoci, Peter

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

162135, 210508, 427244, 427391, B01D 3918

Patent

active

046234624

ABSTRACT:
This invention relates to impregnated oil filter substrate and to oil filters containing such impregnated substrates that require a single cure and can pass a hot oil immersion test, said filter substrate being impregnated with a water-based binder comprising a latex containing at least 20% polymerized vinyl chloride in the latex solids, said latex being a copolymer of vinyl chloride, 30 to 60% lower alkyl acrylate, and one or more comonomers selected from acrylic acid and N-methylol acrylamide, said comonomers being used in an amount of up to 5%, based on the weight of the monomers used to make the latex; said binder also containing 5 to 20 parts of a cross-linking resin per 100 weight parts of latex solids and 5 to 20% catalyst for the cross-linking resin based on the weight of the cross-linking resin.

REFERENCES:
patent: 2976167 (1961-03-01), Maeder et al.
patent: 3224592 (1965-12-01), Burns et al.
patent: 3520416 (1970-07-01), Keedwell
patent: 3788878 (1974-01-01), Wheelock
patent: 4018647 (1977-04-01), Wietsma
patent: 4119543 (1978-10-01), Lawson et al.
patent: 4333971 (1982-06-01), Van Eenam

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