公开(公告)号：US5521251A

公开(公告)日：1996-05-28

申请号：US324968

申请日：1994-10-18

申请人： Makoto Satoh ,  Ritsuo Setoh

发明人： Makoto Satoh ,  Ritsuo Setoh

IPC分类号： C08L23/16 ,  C08L23/12 ,  C08L23/14 ,  C08L23/20

CPC分类号： C08L23/16 ,  C08L23/10

摘要： A propylene random copolymer composition which contains a mixture of 0.05-2.7% by weight of a crystalline propylene homopolymer (A) and 97.3-99.95% by weight of a random copolymer (B) of propylene and at least one .alpha.-olefin other than propylene which copolymer has a bound propylene content of 40-85% by weight and a Mw/Mn of not more than 5.5 meets both of the two mutually conflicting requirements of further improving the transparency inherent to polypropylene sheet and film, and attaining excellent solvent resistance.

摘要翻译： 丙烯无规共聚物组合物，其含有0.05-2.7重量％的结晶丙烯均聚物（A）和97.3-99.95重量％的丙烯和除丙烯以外的至少一种α-烯烃的无规共聚物（B）的混合物 该共聚物的结合丙烯含量为40-85重量％，Mw / Mn不大于5.5，满足了进一步提高聚丙烯片和薄膜固有的透明度的两个相互矛盾的要求，并获得优异的耐溶剂性。

公开(公告)号：US5780168A

公开(公告)日：1998-07-14

申请号：US429900

申请日：1995-04-27

申请人： Makoto Satoh ,  Ritsuo Setoh ,  Katsunari Inagaki ,  Jun Ohara

发明人： Makoto Satoh ,  Ritsuo Setoh ,  Katsunari Inagaki ,  Jun Ohara

IPC分类号： C08J5/18 ,  C08L23/14 ,  B32B27/32

CPC分类号： C08J5/18 ,  C08L23/14 ,  C08L23/142 ,  C08J2323/10 ,  C08L2205/02 ,  Y10T428/31913

摘要： A propylene-.alpha.-olefin random copolymer composition for use in a laminated and oriented film. The composition includes: (A) from 75 to 95% by weight of a crystalline propylene random copolymer obtained by gas-phase polymerization of propylene and an .alpha.-olefin wherein the amount of components of the copolymer which are soluble in xylene at 20.degree. C. is less than 15% by weight, the propylene content is from 73 to 97% by weight, the .alpha.-olefin content is from 3 to 27% by weight, and (B) from 5 to 25% by weight of a propylene random copolymer of propylene and .alpha.-olefin, wherein the propylene content is from 50 to 60% by weight, and the .alpha.-olefin content is from 35 to 65 % by weight, wherein the amounts of components in the propylene-.alpha.-olefin random copolymer composition which are soluble in xylene at 20.degree. C. is less than 30% by weight.

摘要翻译： 用于层压和取向膜的丙烯-α-烯烃无规共聚物组合物。 该组合物包括：（A）75至95重量％的通过丙烯和α-烯烃的气相聚合获得的结晶丙烯无规共聚物，其中在20℃下可溶于二甲苯的共聚物的组分量 小于15重量％，丙烯含量为73至97重量％，α-烯烃含量为3至27重量％，（B）5至25重量％的丙烯无规 丙烯和α-烯烃的共聚物，其中丙烯含量为50至60重量％，α-烯烃含量为35至65重量％，其中丙烯-α-烯烃无规共聚物中组分的量 在20℃下可溶于二甲苯的组合物小于30重量％。

公开(公告)号：US6106938A

公开(公告)日：2000-08-22

申请号：US879654

申请日：1997-06-20

申请人： Ritsuo Setoh ,  Makoto Satoh ,  Katsunari Inagaki ,  Jun Ohara

发明人： Ritsuo Setoh ,  Makoto Satoh ,  Katsunari Inagaki ,  Jun Ohara

IPC分类号： B32B27/32 ,  C08L23/10 ,  C08L23/14

CPC分类号： B32B27/32 ,  C08L23/10 ,  C08L2205/02 ,  C08L23/142 ,  Y10S428/91 ,  Y10T428/2826

摘要： A polypropylene composition for a laminated and oriented film comprising (A) 73 to 97% by weight of a crystalline propylene random copolymer having a propylene content of 60 to 97% by weight, an ethylene content of 0 to 6% by weight and an .alpha.-olefin content of 3 to 40% by weight, (B) 2.5 to 17% by weight of a propylene- .alpha.-olefin random copolymer having a propylene content of 35 to 75% by weight and an .alpha.-olefin content of 25 to 65% by weight, and (c) 0.5 to 10% by weight of a crystalline propylene polymer. A polypropylene composition for a laminated and oriented film being film-formed for a long time without hurting a transparency and a low temperature heat-sealing property and having an excellent solvent resistance and an excellent hot-tack property, and a laminated and oriented film having this composition on a surface layer are provided.

摘要翻译： 一种用于层压和取向膜的聚丙烯组合物，其包含（A）73至97重量％的丙烯含量为60至97重量％，乙烯含量为0至6重量％的结晶丙烯无规共聚物和α 烯烃含量为3〜40重量％，（B）2.5〜17重量％丙烯含量为35〜75重量％，α-烯烃含量为25〜65的丙烯-α-烯烃无规共聚物 （c）0.5-10重量％的结晶丙烯聚合物。 一种用于层压和取向膜的聚丙烯组合物，其长时间成膜而不损害透明性和低温热封性，并且具有优异的耐溶剂性和优异的热粘性，并且具有层压取向膜，其具有 提供了表面层上的这种组合物。