Thermoplastic acrylic sheet compositions and their use as...

C - Chemistry – Metallurgy – 08 – J

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C08J 5/18 (2006.01) B29D 7/01 (2006.01) B32B 27/08 (2006.01) B32B 27/20 (2006.01) C08K 3/00 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2243396

A thermoplastic acrylic sheet and laminate formed therefrom are provided that allow the production of thin solid surfacing materials that provide the properties of conventional thicker solid surfacing with the advantages of processing and handling capabilities normally associated with high-pressure decorative laminate, wherein the thermoplastic acrylic sheet is formed from a thermoplastic acrylic polymer having dispersed therein a filler in an amount sufficient to provide the sheet with a Barcol hardness of at least 40; and an impact modifier; wherein the thermoplastic acrylic polymer has a melt flow index of at least 1.5; and wherein the filler has an aspect ratio of up to 25:1, and its use with an opaque cap layer in a laminate product.

Feuille d'acrylique thermoplastique et stratifié formé à partir de celle-ci permettant la production de matériaux de revêtement solides minces qui combinent les propriétés d'un revêtement solide classique plus épais et les avantages d'une aptitude au traitement et à la manipulation normalement associée aux stratifiés décoratifs haute pression, la feuille d'acrylique thermoplastique étant formée à partir d'un polymère acrylique thermoplastique dans lequel est dispersée une matière de charge en quantité suffisante pour donner à la feuille une dureté Barcol d'au moins 40; et un antichoc; le polymère acrylique thermoplastique ayant un indice de fluidité d'au moins 1,5; la matière de charge ayant un rapport d'aspect pouvant aller judqu'à 25:1, et son utilisation avec une couche de finition opaque dans un produit stratifié.

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