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    • 8. 发明授权
    • Partially crosslinked composition comprising polymers of propylene and
of ethylene
    • 部分交联的组合物包含丙烯和乙烯的聚合物
    • US5384369A
    • 1995-01-24
    • US238791
    • 1994-05-06
    • Sibylle BrosiusErhard SeilerHarald SchwagerGerhard KressLothar Schlemmer
    • Sibylle BrosiusErhard SeilerHarald SchwagerGerhard KressLothar Schlemmer
    • C08F255/02C08L23/26
    • C08F255/02
    • A partially crosslinked polymer composition comprisinga) a polymer comprising from 25 to 95% by weight of polypropylene and from 5 to 75% by weight of a propylene copolymer with copolymerized C.sub.2 -C.sub.10 -alk-1-enes, the comonomer content being from 1 to 45% by weight, based on the total polymer,b) a random ethylene copolymer containing from 5 to 20% by weight of copolymerized C.sub.3 -C.sub.10 -alk-1-enes and having a density at room temperature of from 0.89 to 0.925 g/cm.sup.3, andc) an organosilane compound of the formula (I)A.sub.4-n SiR.sub.n (I) where A are identical or different acrylates or methacrylates or vinyl groups, R are identical or different C.sub.1 -C.sub.8 -alkoxy or C.sub.1 -C.sub.8 -acetoxy groups, and n is 1, 2 or 3,can be obtained by reacting a polymer mixture of the polymer a) and the random ethylene copolymer b) with the organosilane compound c) in the presence of a free-radical initiator and in the presence of a condensation catalyst at from 180.degree. to 280.degree. C., at from 1 to 100 bar and at a mean residence time of the reaction mixture of from 0.2 to 10 minutes.
    • 一种部分交联的聚合物组合物,其包含a)包含25至95重量%的聚丙烯和5至75重量%的具有共聚的C 2 -C 10 - 烷-1-烯的丙烯共聚物的聚合物,共聚单体含量为1 至45重量%,b)含有5至20重量%的共聚的C 3 -C 10 - 烷-1-烯并且在室温下的密度为0.89至0.925g的无规乙烯共聚物 cm 3,和c)式(I)的有机硅烷化合物A4-nSiRn(I)其中A是相同或不同的丙烯酸酯或甲基丙烯酸酯或乙烯基,R是相同或不同的C 1 -C 8 - 烷氧基或C 1 -C 8 - 乙酰氧基 基团,n为1,2或3,可以通过在自由基引发剂存在下使聚合物a)和无规乙烯共聚物b)的聚合物混合物与有机硅烷化合物c) 的缩合催化剂在180-280℃,1-100巴和平均停留时间下进行 的反应混合物为0.2至10分钟。