Bonding of Alpha-Olefin Hydrocarbon Copolymers to Polyester Substrates
Номер патента: GB1193483A
Опубликовано: 03-06-1970
Автор(ы): George Arthur Gallagher, Henry Clement Walter
Принадлежит: EI Du Pont de Nemours and Co
Опубликовано: 03-06-1970
Автор(ы): George Arthur Gallagher, Henry Clement Walter
Принадлежит: EI Du Pont de Nemours and Co
Реферат: 1,193,483. Laminates. E. I. DU PONT DE NEMOURS & CO. 8 Aug., 1967 [10 Aug., 1966], No. 36446/67. Addition to 1,074,611. Heading B5N. [Also in Division D1] A method of adhering a sulphur-curable chainsaturated α-olefine hydrocarbon copolymer to a polyester substrate, e.g. in the form of a fabric comprises coating the substrate firstly with either (I) a mixture of a polyepoxide and an aromatic polyisocyanate or an adduct thereof, or (II) a mixture of 2-pyrrolidone, a polyepoxide and an alkali metal hydroxide, and then with an aqueous dispersion containing (a) a chlorosulphonated polyethylene and (b) a phenolaldehyde type resin, drying the latter coating and curing the hydrocarbon copolymer while pressing it in contact with the coated surface of the substrate. In preferred embodiments, mixture (II) also contains formaldehyde or a blocked polyisocyanate or the substrate coated with mixture (I) is coated with a mixture of a resorcinol-formaldehyde resin and a vinyl pyridine copolymer latex prior to applying the aqueous dispersion. The polyester is preferably polyethylene terephthalate. Specified copolymers are those of ethylene, propylene and 1,4- hexadiene, ethylene and 1:4-hexadiene, ethylene, propylene and dicyclopentadiene, ethylene, propylene and 5-methylene-2-norbornene and ethylene, propylene and 1:5-cyclo octadiene. Specified phenols are phenol and resorcinol. Specified polyepoxides are the reaction products of epichlorohydrin with glycerol or bis-phenol-A. Examples are given.
Adhesive bonding of alpha-olefin hydrocarbon copolymers
Номер патента: US3687777A. Автор: Henry Clement Walter,George Arthur Gallagher. Владелец: EI Du Pont de Nemours and Co. Дата публикации: 1972-08-29.