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公开(公告)号：US20190211153A1
公开(公告)日：2019-07-11
申请号：US16236717
申请日：2018-12-31
发明人： Roy Ray ODLE , Ke CAO , Guoliang LIU , Timothy Edward LONG , Joseph Michael DENNIS , Ryan J. MONDSCHEIN
CPC分类号： C08G73/1071 , C08G73/1007 , C08G73/101 , C08G73/1046 , C08L79/08
摘要： A polyimide oligomer of the formula wherein G is a group having a valence of t, each R is independently a C1-30 divalent bridging group, a C1-20 alkylene-X, or a C6-30 arylene-X wherein —X is —O-M′, —C(O)O-M′, —OC(O)O-M′, —S-M′, —S(O)2-M′, —S(O)3-M′, —OS(O)3-M′, or —OP(O)3-M′ wherein each M′ is independently Li, Na, K, Cs, Mg, Ca, Sr, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, B, Al, Ga, In, Ge, Sn, Pb, As, or Sb, provided that at least one R is C1-20 alkylene-X or C6-30 arylene-X, q is 0 or 1, m is 0 or 1, d is 0 or 1, p is 1 or 2, t is 1 to 6, and each n is independently 1 to 1,000, the total of all values of n is greater than 4, the polyimide oligomer is thermoplastic, and Q, M, D, and V are as provided herein.
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公开(公告)号：US20190315963A1
公开(公告)日：2019-10-17
申请号：US16472143
申请日：2017-12-29
IPC分类号： C08L79/08
摘要： 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.
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