Stock material or miscellaneous articles – Sheet including cover or casing – Complete cover or casing
428 70, 428 74, 428 96, 428480, 43125, 43131, 431321, B32B 104, B32B 302, A01M 1300, A01M 120
Gas-permeable 100% reinforced thermosetting polyester film material for the manufacture of pest control applicators, comprising a grid including a base of polyester yarn overlain with top and bottom layers of polyester fibers, and an aqueous-based paste of the same polyester filling the spaces between the grid yarn and fibers and having a melting point lower than the grid yarn and fibers polyester. A pest control applicator is formed of such film material, filled with pest control agent reactive with water to release a fumigating gas, and after reaction of the pest control agent with air humidity, the applicator is immersed in water to deactivate residial pest control agent.
patent: 4205028 (1980-05-01), Brueggemann et al.
patent: 4597218 (1986-07-01), Friemel et al.
patent: 4932155 (1990-06-01), Friemel et al.
Casa Bernardo LTDA
Lam Cathy F.
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