FIELD: chemistry.
SUBSTANCE: invention relates to a resin composition for making moulded articles, which efficiently block thermal radiation of sunlight and are excellent in terms of transparency, as well as articles moulded from said composition. The resin composition contains an aromatic polycarbonate resin (component A), particles of a hexaboride of at least one element selected from a group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca, (component B-1) and at least another resin (component B-2) different from component A, and nitride particles. The other resin (component B-2) is selected from a group comprising acrylic resin, polyurethane resin, polyether resin and polyester resin. Total content of component B-1 and component B-2 ranges from 0.001 to 1 pts.wt per 100 pts.wt component A. The resin composition contains particles (1) formed from component B-1 and particles (2) formed from component B-1 and component B-2. Particles (1) and particles (2) are characterised by number-average diameter of secondary particles of 50 mcm or less, and maximum diameter of secondary particles of 300 mcm or less. The resin composition is obtained by mixing component B-1 and component B-2. A component B is obtained, which is mixed with component A. A mother batch is obtained, which is mixed with component A. An article is moulded from the resin composition.
EFFECT: resin composition for obtaining moulded articles which efficiently block thermal radiation of sunlight and are excellent in terms of transparency.
15 cl, 2 dwg, 2 tbl, 2 ex
Authors
Dates
2012-11-20—Published
2009-03-26—Filed