Tough, processable semi-interpenetrating polymer networks from m

Details Tough, processable semi-interpenetrating polymer networks from m Tough, processable semi-interpenetrating polymer networks from m

Filed on

1992-01-31

Date issued

1994-04-26

Examiner

Carrillo, Ana L.

Patent Class

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

SubClass

Synthetic resins

SubSubClass

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

Other Related Categories

525432, 525436, 525903, 4284735, C08J 508, C08G 7300

Type

Patent

Status

active

Patent number

053067843

Description

ABSTRACT:
A high temperature semi-interpenetrating polymer network (semi-IPN) was developed which had significantly improved processability, damage tolerance and mechanical performance, when compared to the commercial Thermid.RTM. materials. This simultaneous semi-IPN was prepared by mixing the monomer precursors of Thermid.RTM. AL-600 (a thermoset) and NR-150B2 (a thermoplastic) and allowing the monomers to react randomly upon heating. This reaction occurs at a rate which decreases the flow and broadens the processing window. Upon heating at a higher temperature, there is an increase in flow. Because of the improved flow properties, broadened processing window and enhanced toughness, high strength polymer matrix composites, adhesives and molded articles can now be prepared from the acetylene end-capped polyimides which were previously inherently brittle and difficult to process.

REFERENCES:
patent: 4954578 (1990-09-01), Ree et al.
patent: 4996101 (1991-02-01), Landis et al.
patent: 5145916 (1992-09-01), Yamamoto et al.
patent: 5149246 (1992-09-01), Pater
patent: 5159029 (1992-10-01), Pater et al.

Affiliated with

Also associated with

Rating

Tough, processable semi-interpenetrating polymer networks from m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tough, processable semi-interpenetrating polymer networks from m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tough, processable semi-interpenetrating polymer networks from m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1712392