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    • 5. 发明授权
    • Polymer blend comprising polypropylene
    • 含聚丙烯的聚合物共混物
    • US5969027A
    • 1999-10-19
    • US904742
    • 1997-08-01
    • Deenadayalu ChunduryRandall S. McAllisterKenneth L. OverleyJohn H. Bowen, IIIAnthony S. Scheibelhoffer
    • Deenadayalu ChunduryRandall S. McAllisterKenneth L. OverleyJohn H. Bowen, IIIAnthony S. Scheibelhoffer
    • C08L23/10C08L53/00C08J3/18C08J3/34
    • C08L23/10C08L2205/02C08L53/00
    • This invention relates to a polymer blend comprising in weight percent:A. from about 55% to about 90% of a polymer composition comprising: (i) 75% to about 100% of a homopolymer or a copolymer of polypropylene; and (ii) from about 0% to about 25% of a vinyl aromatic polymer;B. from about 0.5% to about 9% of at least one block polymer of a vinyl aromatic monomer and an aliphatic conjugated diene, a selectively hydrogenated derivative thereof, or a selectively hydrogenated derivative thereof to which has been grafted an unsaturated carboxylic reagent, wherein the block copolymer contains up to 50% by weight bound vinyl aromatic monomer;C. from about 2% to about 12% of at least one block polymer of a vinyl aromatic monomer and a conjugated diene, a partially hydrogenated derivative thereof, or a selectively hydrogenated derivative thereof to which has been grafted an unsaturated carboxylic reagent, wherein the block polymer contains greater than 60% by weight bound vinyl aromatic monomer;D. from about 0.75% to about 8% fiber; andE. from about 10% to about 40% calcium carbonate.
    • 本发明涉及包含重量百分比的聚合物共混物:A.约55%至约90%的聚合物组合物,其包含:(i)75%至约100%的均聚物或聚丙烯共聚物; 和(ii)约0%至约25%的乙烯基芳族聚合物; B.约0.5%至约9%的乙烯基芳族单体和脂族共轭二烯的至少一种嵌段聚合物,其选择性氢化的衍生物或其选择性氢化的衍生物,其中已经接枝了不饱和羧酸试剂,其中 嵌段共聚物含有至多50重量%的结合的乙烯基芳族单体; 约2%至约12%的乙烯基芳族单体和共轭二烯的至少一种嵌段聚合物,其部分氢化的衍生物或其选择性氢化的衍生物,其中已经接枝了不饱和羧酸试剂,其中 嵌段聚合物含有大于60重量%的结合的乙烯基芳族单体; D.约0.75%至约8%的纤维; 和E.约10%至约40%的碳酸钙。