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Production manner null of the polymer which contains the imido basis which designates the polysiloxane bismaleimide and the maleimide which includes aromatic diamine as the base
Production manner null of the polymer which contains the imido basis which designates the polysiloxane bismaleimide and the maleimide which includes aromatic diamine as the base
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机译:包含表示聚硅氧烷双马来酰亚胺的酰亚胺基的聚合物和以芳香族二胺为基础的马来酰亚胺的生产方式无效
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摘要
Heat-curable prepolymers containing imide groups, which have a very low melt viscosity. …??More precisely, these polymers are obtained by reaction between:… - (a) one or more conventional N,N'-bismaleimide(s), (b) an N,N'-bismaleimide of general formula: …IMAGE… in which: X denotes a valency bond, -O-, -S-, -S=O-, …IMAGE… each of R1 to R8 denotes a hydrocarbon radical, X is a number ranging from 2 to 8, and the sum y + z is between 0 and 100, (c) one or more aromatic diprimary diamine(s), (d) optionally one or more monomer(s) other than a bisimide and containing one or more polymerisable carbon-carbon double bond(s), (e) optionally a catalyst, and an additive (f) consisting either of an acrylate reactant (f1) or of an unhalogenated epoxy resin (f2). …??These polymers are employed especially for the production of preimpregnated intermediate articles without any solvent.
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