Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1993-03-05
1994-03-15
Seidleck, James J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524504, 525 71, 525 72, 525 73, 525902, C08L 5104
Patent
active
052946568
ABSTRACT:
A rubber modified styrene based resin composition which is excellent in the balance of impact strength and shapes appearance such as gloss and especially image clarity, and has a wide applicability in the field of housings for household electric apparatuses and the like requiring such a shapes appearance as having been difficult to achieve with conventional rubber modified polystyrenes (HIPSs), and which comprises a styrene based resin forming a matrix and particulate soft component containing rubbery elastomer dispersed in the matrix, wherein the soft component dispersed in the composition consists of a small-sized particulate component having a core/shell structure and an average particle size of 0.1 to 0.4 .mu.m and a large-sized particulate component having a cell structure and an average particle size of 0.8 to 2.0 .mu.m, a ratio by weight of the small-sized component to the large-sized component being in the range of 90:10 to 99:1, and the resin composition contains an amount of 0.01 to 0.5% by weight of methyl phenyl silicone oil.
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Database WPIL, Week 8939, Nov. 22, 1989, Derwent Publications Ltd., London, GB; AN 89-282613 & JP-A-01 207 369 (Nippon Yuka Kogyo) Aug. 21, 1989.
Kanno Yoshinori
Okamoto Yasushi
Yoshimi Shuji
Seidleck James J.
Sumitomo Chemical Company Limited
Warzel Mark L.
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