FIELD: chemistry.
SUBSTANCE: present invention relates to a composition based on methacrylic resin, as well as films made from methacrylic resin. Described is a composition based on methacrylic resin which is resistant to atmospheric effects and shields from ultraviolet rays and contains a composition based on methacrylic resin (C), containing methacrylate polymer (A) and acrylic cross linked elastic particles (B). The said composition based on methacrylic resin (C) is obtained through polymerisation of a mixture of monomers (a) in the presence of said acrylic cross linked elastic particles (B). The said methacrylate polymer (A) is obtained through polymerisation of a mixture of monomers (a) containing 50-100 wt % alkylmethacrylate and 0-50 wt % alkylacrylate. The said acrylic cross linked elastic particles (B) are obtained through copolymerisation of a mixture of monomers (b) containing 50-100 wt % alkylacrylate and 0-50 wt % alkylmethacrylate and a polyfunctional monomer containing two or more non-conjugated double bonds per molecule, where from 0.01 to 30 pts. wt per 100 pts. wt of the composition based on methacrylic resin (C) for ultraviolet light absorber with formula (1), where X is H or halogen; R1 represents H, methyl or a t-alkyl group with 4-6 carbon atoms; R2 represents a linear or branched alkylene group with 2-10 carbon atoms, and R3 represents H or methyl. The said ultraviolet light absorber is copolymerised with the said methacrylate polymer (A) and with the said acrylic cross linked elastic particles (B), in the said composition based on methacrylic resin (C). Also described is a film made from the said composition. A laminate is described, containing a metal or plastic coated with the said film. The film is laminated.
EFFECT: obtaining films with excellent transparency, capable of withstanding atmospheric effects, with excellent hardness, impact resistance, bending and tearing resistance, as well as moulding capacity.
8 cl, 3 tbl, 18 ex
