B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/00 (2006.01) C08J 5/18 (2006.01) C09D 123/00 (2006.01)
Patent
CA 2711579
Methods for producing a coated biaxially oriented film and films made therefrom. An illustrative method can include orienting a base film in a first direction to provide an uniaxially oriented film; coating at least a portion of the uniaxially oriented film with a polyolefin dispersion to produce a coated uniaxially oriented film; and orienting the coated uniaxially oriented film in a second direction at a temperature sufficient to stretch and anneal the coated film to provide a coated biaxially oriented film having greater than 80% gloss.
L'invention concerne des procédés de production d'un film revêtu biaxialement orienté et les films obtenus. A titre d'exemple, un procédé consiste à orienter un film de base dans une première direction afin d'obtenir un film uniaxialement orienté; à revêtir au moins une partie du film uniaxialement orienté avec une dispersion de polyoléfines afin d'obtenir un film revêtu uniaxialement orienté; et à orienter le film revêtu uniaxialement orienté dans une seconde direction à une température suffisante pour étirer et recuire le film revêtu afin d'obtenir un film revêtu biaxialement orienté présentant plus de 80% de brillance.
Kalinowski Matthew J.
Lu Pang-Chia
Moncla Brad M.
Borden Ladner Gervais Llp
Exxonmobil Oil Corporation
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