Process for controlling morphology and improving thermal mechani

Details Process for controlling morphology and improving thermal mechani Process for controlling morphology and improving thermal mechani

1996-04-10

1998-06-23

Hampton-Hightower, P.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528125, 528126, 528128, 528170, 528172, 528173, 528176, 528183, 528185, 528220, 528229, 528310, 528322, 528353, 528392, 524600, 524606, 526935, 4284111, C08G 7310, C08G 6926

Patent

active

057706760

ABSTRACT:
In the process of the present invention, a non-polar, aprotic solvent is removed from an oligomer/polymer solution by freeze-drying in order to produce IPNs and semi-IPNs. By thermally quenching the solution to a solid in a short length of time, the size of the minor constituent-rich regions is greatly reduced as they are excluded along with the major constituent from the regions of crystallizing solvent. The use of this process sequence of controlling phase morphology provides IPNs and semi-IPNs with improved fracture toughness, microcracking resistance, and other physical-mechanical properties as compared to IPNs and semi-IPNs formed when the solvent is evaporated rather than sublimed.

REFERENCES:
patent: 5015727 (1991-05-01), Riel et al.
patent: 5171822 (1992-12-01), Pater

Affiliated with

Also associated with

Rating

Process for controlling morphology and improving thermal mechani does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for controlling morphology and improving thermal mechani, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for controlling morphology and improving thermal mechani will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1395377