公开(公告)号：EP3250615A4

公开(公告)日：2018-07-25

申请号：EP16743851

申请日：2016-01-15

Applicant: BRASKEM AMERICA INC

Inventor： CARNEVALE ELLIOT ,  STEVENS RILEY ,  MCLOUGHLIN KIMBERLY MILLER ,  MILLER WILLIAM SCOTT ,  STEPHANS MICHAEL ROBERT ,  KRUPINSKI STEVEN MICHAEL

IPC: C08K5/3445 ,  C08L23/12

CPC classification number: C08L23/12 ,  C08J5/18 ,  C08J9/0033 ,  C08J9/0061 ,  C08J2201/03 ,  C08J2205/00 ,  C08J2323/12 ,  C08J2323/32 ,  C08J2423/12 ,  C08K5/43 ,  C08L2205/025 ,  C08L2205/03 ,  C08L2205/035 ,  C08L2205/06 ,  C08L23/08

Abstract: A foamable composition includes a semi-crystalline polyolefin having a crystallinity of at least 50% and a poly(sulfonyl azide) of at least 500 ppm based on the total weight of the foamable composition. The foamable composition has a melt strength of at least 20 cN, a melt drawability of at least 100 mm/s, flexural modulus is greater than about 240,000 psi. Such a composition can be used to make a low density foam having a density in the range from 0.005 g/cm3 to 0.6 g/cm3. A resulting foam or a fabricated article, the methods of the composition and the foam are also provided.