Semi-2-interpenetrating networks of high temperature systems

Details Semi-2-interpenetrating networks of high temperature systems Semi-2-interpenetrating networks of high temperature systems

1986-03-18

1987-09-22

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525432, 525436, 525903, 428290, C08F28304

Patent

active

046956107

ABSTRACT:
Semi-2-interpenetrating polymer networks (semi-2-IPNs) of improved qualities are prepared by combining a linear polymer and a cross-linkable oligomer which have identical recurring units. Linear and crosslinking components having identical structures in their backbones are mutually soluble and will thus form one homogenous phase unlike other network system. A novel semi-2-IPN of the present invention is prepared by combining a linear polyimidesulfone with a cross-linking acetylene-terminated polyimidesulfone. This combination results in a semi-2-IPN of improved strength, adhesion, and processability.

REFERENCES:
patent: 3468977 (1969-09-01), Bruckman et al.
patent: 4398021 (1983-08-01), St. Clair et al.
patent: 4650824 (1987-03-01), Clikeman et al.
Millan, J. R.; J. Appl. Chem.; 1311, 1960.

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