Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1995-05-02
1997-02-18
Szekely, Peter A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
524 91, 524291, 524336, 524337, C08K 516, C08K 53477, C08K 5132, C08K 53467
Patent
active
056042817
ABSTRACT:
The ultraviolet- and infrared-ray absorbing polymer composition contains 0.01-1 part by weight of an organic ultraviolet-ray absorbent and 0.001-2 parts by weight of an organic infrared-ray absorbent onto 100 parts by weight of a polycarbonate resin which implies 10-100% by weight of copolyestercarbonate, manufactured by heat-molding process at 210.degree.-245.degree. C. from a mixture of those components. This polymer composition is manufactured easily by an ordinary screw extruder or injection molding machine without strict control of heat-molding temperature, at a high non-defective ratio, said product having a stable effect in absorbing ultraviolet rays and infrared rays, while allowing transmittance of visible radiation rays, thus making it suitable for a wide variety of uses.
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Patent Abstract of Japan, vol. 018, No. 090 (m-1560), Feb. 15, 1994 and JP-A-05 295967 (The Japan Carlit Co., Ltd, Nov. 9, 1993.
Iwata Emiko
Kamei Teruaki
Koya Takao
Shindo Syuko
Tamura Masaaki
Szekely Peter A.
The Japan Carlit Co., Ltd.
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