公开(公告)号：US11286347B2

公开(公告)日：2022-03-29

申请号：US16472150

申请日：2017-12-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Roy Ray Odle ,  Peter Johnson ,  Manojkumar Chellamuthu ,  Hee Won Kong

IPC: C08G73/10 ,  C08L79/08 ,  C08G73/12

Abstract: A branched polyimide of the formula (I) wherein G is a group having a valence of t, present in an amount of 0.01 to 10 mol %, or 0.05 to 5 mol %, or 0.1 to 4 mol %, or 0.1 to 3 mol %, each of Q, M, D, V, and R are as defined herein, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 2 to 6, preferably 2 to 4, and each n is independently the same or different, and is 1 to 1,000, provided that the total of all values of n is greater than 4, wherein the branched polyimide has a zero-shear viscosity in a range from 500 to 15,000 Pa·s, a rheology ratio of 1.1 to 5, and a strain hardening ratio of 1 to 6.

公开(公告)号：US11377521B2

公开(公告)日：2022-07-05

申请号：US16472143

申请日：2017-12-29

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Roy Ray Odle ,  Peter Johnson ,  Manojkumar Chellamuthu ,  Hee Won Kong ,  Timothy Edward Long

IPC: C08G73/10 ,  C08L79/08 ,  C08G73/12

Abstract: A polyimide composition includes 1 to 99 weight percent, preferably 70 to 99 weight percent, more preferably 75 to 95 weight percent of a first polyimide; and 1 to 99 weight percent, preferably 1 to 30 weight percent, more preferably 2 to 25 weight percent of a second polyimide, wherein the first polyimide and the second polyimide are different, and wherein the polyimide composition has a melt flow rate that is greater than a melt flow rate of the first polyimide and less than a melt flow rate of the second polyimide; an apparent viscosity that is less than an apparent viscosity of the first polyimide and less than an apparent viscosity of the second polyimide; and a notched Izod impact strength that is greater than a notched Izod impact strength of the first polyimide and greater than a notched Izod impact strength of the second polyimide.