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2. 发明申请

WO1987003888A1 COMPOSITIONS OF ETHYLENE POLYMERS, METHOD FOR THE PREPARATION AND APPLICATION THEREOF FOR THE PRODUCTION OF INDUSTRIAL ARTICLES 审中-公开
标题翻译：乙烯聚合物的组合物，制备和应用工业制品的方法
公开(公告)号：WO1987003888A1
公开(公告)日：1987-07-02
申请号：PCT/FR1986000438
申请日：1986-12-19
申请人： SOCIETE CHIMIQUE DES CHARBONNAGES, S.A. , AUDUREAU, Joël , PIECUCH, Edouard
发明人： SOCIETE CHIMIQUE DES CHARBONNAGES, S.A.
IPC分类号： C08F08/50
CPC分类号： C08L23/0815 , C08F8/50 , C08F2800/10 , C08F2810/10 , C08L23/10 , C08L23/20 , C08L2666/06 , C08F110/02 , C08F210/08
摘要： The compositions contain a) from 90 to 99.8 % by weight of at least one modified ethylene polymer and, optionally, at least one alpha -olefin having from 3 to 12 atoms of carbon, said polymer containing at least 8 % in moles of units derived from ethylene and, b) from 0.2 to 10 % by weight of at least one polymer phase (B) comprising at least one polymer containing at least 90 % by moles of units derived from at least one alpha -olefin having from 3 to 12 atoms of carbon and at the most 10 % by moles of units derived from ethylene, said compositions having a measured limit viscosity comprised between 1.5 and a 100 times their limit viscosity calculated from the distribution of molecular masses. Their preparation process comprises the modification of a polymer (A) containing at least 80 % by moles of units derived from ethylene and at the most 20 % by moles of units derived from at least one alpha -olefin having from 3 to 12 atoms of carbon, by means of at least one initiator of free radicals in presence of said polymer (A) at a temperature higher than the melting temperature of said polymer (A) during a time duration longer or equal to the tenth of the time duration of the half life of said initiator at the temperature in question and is characterised in that the initiator of free radicals is, prior to its being brought in contact with the polymer (A), dispersed into at least one polymer phase (B) present in a quantity such that its proportion in the resulting composition is comprised between 0.2 and 10 % by weight. Application to the production of industrial articles by transformation of said compositions by a technique selected amongst extrusion-blowing, extrusion through flat die, injection and coating.
摘要翻译：所述组合物含有a）90-99.8％（重量）的至少一种改性乙烯聚合物和任选的至少一种具有3-12个碳原子的α-烯烃，所述聚合物含有至少8％摩尔的单元衍生从乙烯和b）0.2至10重量％的至少一种聚合物相（B），其包含至少一种含有至少90摩尔％的至少一种具有3-12个原子的α-烯烃的单元的聚合物的碳和至多10摩尔％的衍生自乙烯的单元，所述组合物具有的测量极限粘度在分子量分布计算的1.5至100倍的极限粘度之间。它们的制备方法包括改性聚合物（A），该聚合物（A）含有至少80摩尔的衍生自乙烯的单元和至多20摩尔％的至少一种具有3-12个碳原子的α-烯烃的单元在所述聚合物（A）的存在下，在高于所述聚合物（A）的熔融温度的温度下，通过至少一种自由基引发剂在长于或等于半数的持续时间的十分之一的持续时间内所述引发剂在所述温度下的寿命，其特征在于，自由基引发剂在与聚合物（A）接触之前分散在至少一个聚合物相（B）中，所述聚合物相以其在所得组合物中的比例为0.2-10重量％。通过选自挤压吹塑，通过平模挤压，注射和涂布的技术转化所述组合物，用于生产工业制品。

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