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    • 2. 发明申请
    • METHODS OF MAKING HIGH IMPACT POLYSTYRENE
    • 制备高冲击聚苯乙烯的方法
    • WO2012058055A9
    • 2012-12-06
    • PCT/US2011056652
    • 2011-10-18
    • FINA TECHNOLOGYSUN LIKUOSOSA JOSEEON SERGECORLETO CARLOSCOOPER SCOTT
    • SUN LIKUOSOSA JOSEEON SERGECORLETO CARLOSCOOPER SCOTT
    • C08F257/00C08F279/00
    • C08F2/001C08F212/08C08F279/02C08L9/06C08L2555/84
    • A process for producing high impact polystyrene including feeding at least one vinyl aromatic monomer; an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture. Polymerizing the reaction mixture in the first linear flow reactor to a point below the point at which phase inversion occurs to produce a first polymerization mixture and feeding the first polymerization mixture from the first linear flow reactor to a second linear flow reactor. Polymerizing the reaction mixture in the second linear flow reactor to at least a phase inversion point of the mixture to produce a second polymerization mixture and feeding the second polymerization mixture from the second linear flow reactor to at least a third linear flow reactor for post.inversion polymerization of the second polymerization mixture.
    • 一种生产高抗冲聚苯乙烯的方法,包括进料至少一种乙烯基芳族单体; 弹性体和自由基引发剂加入到第一线性流动反应器中以形成反应混合物。 将第一线性流动反应器中的反应混合物聚合到低于发生相转移点的点以产生第一聚合混合物并将第一聚合混合物从第一线性流动反应器进料到第二线性流动反应器。 将第二线性流动反应器中的反应混合物聚合成混合物的至少相转变点,以产生第二聚合混合物,并将第二聚合混合物从第二线性流动反应器进料至至少第三线性流动反应器用于反应 第二聚合混合物的聚合。
    • 5. 发明专利
    • CLEAR IMPACT-RESISTANT SYNDIOTACTIC POLYPROPYLENE
    • CA2493056A1
    • 2004-02-26
    • CA2493056
    • 2003-08-07
    • FINA TECHNOLOGY
    • BOYLE KEVINDEKUNDER GREGSCHARDL JOSEPHSUN LIKUOBAUMGARTNER ALAN S
    • B29C45/00B29K23/00C08L23/08C08L23/10C08L23/12C08L23/14C08F8/00
    • Syndiotactic polypropylene blends having a unique set of mechanical properti es may be prepared by blending syndiotactic polypropylene with an ultra low density polyethylene and, optionally, an isotactic polypropylene random copolymer. The syndiotactic polypropylene blends of the present invention ha ve been found to have improved impact strength, reduced haze, increased light transmittance, and reduced flexural modulus. It has been determined that the addition of about 10 to about 50 wt% of an ultra low density polyethylene plastomer to a syndiotactic polypropylene can greatly enhance mechanical toughness, particularly at low temperatures, while maintaining good optical clarity. These results are made possible by using a sPP material with good optical clarity and dispersing the ULDPE plastomer uniformly throughout the sPP matrix to act as a sort of impact modifier. Moreover, the addition of about 10 to about 50 wt% of an iPP random copolymer to the sPP matrix phase provides comparable or improved mechanical properties while also resulting i n a significant reduction in injection molding cycle times. The syndiotactic polypropylene blends according to the present invention may be further processed according to accepted practices to make cast films, blown films, c o- extruded films, laminated sheets, injection molded parts, blow molded containers, and other articles using basic plastic fabrication techniques as known in the art.
    • 9. 发明专利
    • СПОСОБ ПОЛУЧЕНИЯ УДАРОПРОЧНОГО ПОЛИСТИРОЛА (ВАРИАНТЫ)
    • EA025512B1
    • 2016-12-30
    • EA201370090
    • 2011-10-18
    • FINA TECHNOLOGY
    • SUN LIKUOSOSA JOSEEON SERGECORLETO CARLOSCOOPER SCOTT
    • C08F257/00C08F279/00
    • Визобретениипредставленспособполученияударопрочногополистирола, включающийэтапы, накоторыхподаютпоменьшеймереодинвинилароматическиймономер; эластомери свободнорадикальныйинициаторв первыйлинейныйреакторпроточноготипас образованиемреакционнойсмеси. Полимеризуютреакционнуюсмесьв первомлинейномреакторепроточноготипадоточкинижеточки, прикоторойпроисходитинверсияфаз, сполучениемпервойполимеризационнойсмеси, иподаютпервуюполимеризационнуюсмесьизпервоголинейногореакторапроточноготипавовторойлинейныйреакторпроточноготипа. Полимеризуютреакционнуюсмесьвовторомлинейномреакторепроточноготипа, поменьшеймере, доточкиинверсиифазсмесис получениемвторойполимеризационнойсмеси, иподаютвторуюполимеризационнуюсмесьизвтороголинейногореакторапроточноготипапоменьшеймерев третийлинейныйреакторпроточноготипадляпослеинверсионнойполимеризациивторойполимеризационнойсмеси.