Sheet-form photocurable material

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/24 (2006.01) B29B 11/16 (2006.01) B32B 5/02 (2006.01) C08F 265/04 (2006.01) C08F 290/00 (2006.01) C08J 5/04 (2006.01) C08J 5/18 (2006.01) C08L 33/12 (2006.01) C08L 51/00 (2006.01)

Patent

CA 2365489

A photocurable sheet-form material which comprises (a) a polymerizable unsaturated monomer, (b) a polymer which is either polymethyl methacrylate or a high-molecular polymer consisting mainly methyl methacrylate units and which is compatible or swollen with the polymer (a), (c) a photocuring agent, and (d) a fibrous reinforcement. It is excellent in productivity, handleability, and photocurability. This photocurable sheet-form material is usable for producing a layered molding and forming a backup layer (reinforcing layers) of a molded article, and is a useful material as a replacement protective material for pipes, covering material, lining material, fixing material, or the like.

L'invention concerne une matière photodurcissable en forme de feuille comprenant: (a) un monomère insaturé polymérisable; (b) un polymère qui est soit un méthacrylate de polyméthyle soit un polymère à poids moléculaire élevé formé principalement d'unités de méthacrylate de méthyle et qui est compatible ou gonflé avec le monomère (a); (c) un agent photodurcissant; et (d) un renfort fibreux. La matière selon l'invention possède d'excellentes propriétés de productivité, de maniabilité et une excellente aptitude au durcissement induit par la lumière. On peut utiliser cette matière pour produire une moulage en couches et pour former une couche de support (couche de renfort) d'un article moulé. Elle s'utilise comme matière protectrice de rechapage de tuyaux, comme matière de recouvrement, de doublure, de fixation, etc.

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