公开(公告)号：US20170204259A1

公开(公告)日：2017-07-20

申请号：US15313306

申请日：2015-04-28

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： MONICA GALVAN ,  FRANCESCA TISI ,  GIAMPAOLO PELLEGATTI ,  SANDRO BOLOGNESI ,  ANDREAS NEUMANN

IPC: C08L23/14

CPC classification number: C08L23/14 ,  C08L23/12 ,  C08L23/16 ,  C08L2203/18 ,  C08L2205/025 ,  C08L2207/02 ,  F16L9/12

Abstract: A polyolefin composition made using a propylene/ethylene copolymer (90.0 wt % to 99.0 wt %) and a heterophasic (second) propylene/ethylene copolymer (1.0 wt % to 10.0 wt %). The composition is useful for the production of pressure pipes, e.g., for use at low temperature, and of pipes for use in heat radiating systems, among other applications. The propylene/ethylene copolymer has between 1.0 wt % and 8.0 wt % ethylene derived units. The second propylene/ethylene copolymer is made using (1) a propylene homopolymer or a propylene/ethylene copolymer (12 wt % to 52 wt %) and (2) a propylene ethylene copolymer (48 wt % to 88 wt %) that has a content of ethylene derived units ranging from 15.0 wt % to 42.0 wt %.

公开(公告)号：US20170210894A1

公开(公告)日：2017-07-27

申请号：US15328845

申请日：2015-06-29

Applicant: BASELL POLIOLEFINE ITALIA S.R.L.

Inventor： MONICA GALVAN ,  ANDREAS NEUMANN ,  SANDRO BOLOGNESI ,  FRANCESCA TISI ,  GIAMPAOLO PELLEGATTI

IPC: C08L23/14 ,  F16L9/12 ,  B32B15/085 ,  B32B27/20 ,  B32B1/08 ,  B32B7/12

CPC classification number: C08L23/14 ,  B32B1/08 ,  B32B7/12 ,  B32B15/08 ,  B32B15/085 ,  B32B27/08 ,  B32B27/20 ,  B32B27/304 ,  B32B27/32 ,  B32B2264/10 ,  B32B2264/102 ,  B32B2264/104 ,  B32B2307/702 ,  B32B2307/704 ,  B32B2597/00 ,  C08L23/12 ,  C08L23/142 ,  C08L2203/18 ,  C08L2205/025 ,  F16L9/12

Abstract: A polyolefin composition made from or containing (A) from 90.0 to 99.0 wt % of a first propylene ethylene copolymer wherein (i) the ethylene derived units is between 1.0 and 8.0 wt %; (ii) the melting temperature ranges from 135 to 155° C.; (iii) the melt flow rate (230° C./5 kg ISO 1133) ranges from 0.2 to 3.5 g/10 min; (iv) the xylene solubles at 25° C. ranges from 10.0 to 4.0 wt %; (v) the polydispersity index ranges from 3.0 to 7.0; and (B) from 1.0 to 10.0 wt % of a second propylene ethylene copolymer (i) containing from 8.0 to 20.0 wt % of ethylene derived units; and having a MFR (measured at 190° C. 2.16 kg of load) between 0.5 and 5.0 g/10 min, wherein (a) the resulting polyolefin composition has a melt flow rate (230° C./5 kg ISO 1133) ranging from 0.2 to 4.0 g/10 min and (b) the sum A+B being 100.