Matrix materials and a process for their preparation

Details Matrix materials and a process for their preparation Matrix materials and a process for their preparation

1986-04-02

1987-04-21

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 72, 528 73, 528 745, 528 75, 528 80, 528 81, 528 85, C08G 1832

Patent

active

046597972

ABSTRACT:
Polyurethane-based matrix materials are made by reacting a phenol which is at least bifunctional with an aromatic isocyanate which is at least difunctional in the presence of 1-40 wt. % soft segment former. The soft segment former is a compound containing long chain aliphatic groups having at least six carbon atoms in the aliphatic group, an isocyanate-reactive group and a molecular weight of from 800 to 10,000. From 90 to 130 equivalent percent of isocyanate groups (based on the total of isocyanate-reactive groups present in the phenol and soft segment former) are employed. These matrix materials are particularly useful in the production of composite materials and as adhesives.

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