Process for making shaped articles of a thermoplastic resin havi

Details Process for making shaped articles of a thermoplastic resin havi Process for making shaped articles of a thermoplastic resin havi

1990-06-15

1992-01-14

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521138, 521182, 525439, 524539, 528301, 428 365, C08J 926, C08L 6702, C08G 63183, C08G 63672

Patent

active

050811614

ABSTRACT:
A process for producing an article of a synthetic resin material or a thermoplastic resin blend having a microcellular structure comprises dispersing in a solid thermoplastic resin matrix having hydrophilic functional groups a finely divided water-soluble material, shaping the resin matrix containing the water-soluble material into the desired article, and immersing the shaped article in water at a suitable temperature to cause the resin matrix to swell to an extent of at least about 50% by volume while wet. The immersion causes water to diffuse into the resin matrix and solvate the water-soluble material, which becomes encased in water-filled cells that have solid walls, are substantially closed, and do not form an interconnecting porous network.
Articles made by this process include, among others, vascular grafts and organoids.

REFERENCES:
patent: 3907926 (1975-09-01), Brown et al.
patent: 3929950 (1975-12-01), Nakamura et al.
patent: 4515841 (1985-05-01), Dyke
patent: 4725481 (1988-02-01), Ostapchenko
patent: 4834746 (1989-05-01), Kira
patent: 4912141 (1990-03-01), Kronman

Affiliated with

Also associated with

Rating

Process for making shaped articles of a thermoplastic resin havi 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 making shaped articles of a thermoplastic resin havi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for making shaped articles of a thermoplastic resin havi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-542042