公开(公告)号：US06465574B1

公开(公告)日：2002-10-15

申请号：US09763219

申请日：2001-02-16

Applicant: Carlo Mulas ,  Rainer Koehler

Inventor： Carlo Mulas ,  Rainer Koehler

IPC: C08L2316

CPC classification number: C08L23/16 ,  C08L23/10 ,  C08L23/12 ,  C08L23/20 ,  C08L25/04 ,  C08L53/00 ,  C08L53/02 ,  C08L2207/02 ,  C08L2312/00 ,  C08L2666/24 ,  C08L2666/04

Abstract: A process comprising powder moulding a polymer composition having a Shore D hardness value less than 40 points; said polymer composition comprising: 1) a polyolefin composition consisting of: i) 5 to less than 100 parts by weight of a crystalline or partially crystalline isotactic polymer of 1-butene; and ii) more than 0 to 95 parts by weight of a thermoplastic elastomeric polyolefin composition having a melt flow rate of 20-100 g/10 min; or 2) a polyolefin composition consisting of: iii) 100 parts by weight of a crystalline or partially crystalline isotactic polymer of 1-butene or composition (1); and iv) more than 0 to 100 parts by weight of an elastomeric polymer; provided that when the polymer of 1-butene is a homopolymer or a copolymer with less than 2 wt % of comonomer, polymer compositions (1) and (2) contain at least 5 parts by weight of an elastomeric polymer.

Abstract translation: 一种包括粉末成型具有肖氏D硬度值小于40分的聚合物组合物的方法; 所述聚合物组合物包括：1）聚烯烃组合物，其由以下组成：i）5至小于100重量份的1-丁烯的结晶或部分结晶的全同立构聚合物; 和ii）大于0至95重量份的熔体流动速率为20-100g / 10min的热塑性弹性体聚烯烃组合物; 或2）由以下组成的聚烯烃组合物：iii）100重量份的1-丁烯或组合物（1）的结晶或部分结晶的全同立构聚合物; 和（ii）大于0至100重量份的弹性体聚合物;条件是当1-丁烯的聚合物是均聚物或具有小于2重量％共聚单体的共聚物时，聚合物组合物（1）和（2） 至少5重量份的弹性体聚合物。