Anti-dew adhesive film

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 27/08 (2006.01) B32B 7/12 (2006.01) B32B 27/18 (2006.01) C09J 7/02 (2006.01)

Patent

CA 2258288

An anti-dew article with an adhesive layer than results in improved durability to outdoor conditions is described. The anti-dew layer has a polymeric base layer and inorganic oxide particles surface layer. The adhesive that bonds the anti-dew film to a substrate is a cross-linked acrylate pressure sensitive adhesive with a low glass transition temperature and essentially no tackifiers. The adhesive is especially valuable for adhering an anti-dew film on a retroreflective traffic sign. The resulting sign exhibits excellent durability in a variety of weather conditions including cold weather.

Cet article à l'épreuve de la condensation pourvu d'une couche adhésive possède une durabilité accrue et ce, en dépit des influences extérieures. Cette couche à l'épreuve de la condensation comporte une couche de base polymère et une couche de surface à base de matière inorganique sous forme de particules d'oxyde. L'adhésif qui fixe le film à l'épreuve de la condensation à un substrat est un adhésif autocollant d'acrylate réticulé ayant une température de transition vitreuse basse et sensiblement dépourvu d'agents poissants. Cet adhésif est très efficace s'agissant de faire adhérer un film à l'épreuve de la condensation à un panneau de signalisation rétroréfléchissant. Le panneau ainsi obtenu à une durabilité remarquable de par sa résistance à diverses conditions météorologiques, les temps froids notamment.

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