Coated polyolefinic film having low adhesion to the welding bars
Номер патента: CA1218572A
Опубликовано: 03-03-1987
Автор(ы): Luigi Mauri, Rino Cardaio
Принадлежит: Moplefan Spa
Опубликовано: 03-03-1987
Автор(ы): Luigi Mauri, Rino Cardaio
Принадлежит: Moplefan Spa
Реферат: ABSTRACT OF DISCLOSURE Films comprising alpha-olefin polymers, such as polypro-pylene consisting essentially of recurring propylene units and having a substantial crystalline polypropylene content, and in particular isotactic polypropylene, are rendered low adhesive to the welding bars of automatic and semi-automatic machines conven-tionally used for the manufacture of containers, evelops, bags, vessels and, in general, other manufactured articles useful in the packaging industry, by coating the films by a mixture of a copolymer of a vinyl ester with an unsaturated acid, a terpolymer of an alkyl acrylate, an alkyl-methacrylate and an unsaturated acid and a cross-linking amine.
Low adhesion compositions of perfluoropolyethers
Номер патента: CA1330912C. Автор: Daniel K. Mcintyre. Владелец: Minnesota Mining and Manufacturing Co. Дата публикации: 1994-07-26.