Browse Prior Art Database

PROCESS FOR PREPARATION OF MONO DISPERSED CRYSTALLINE PARTICLES FROM AMORPHOUS POLYMERS

IP.com Disclosure Number: IPCOM000023609D
Original Publication Date: 1978-Jun-30
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 183K

Publishing Venue

Xerox Disclosure Journal

Abstract

Process for preparation of monodispersed crystalline particles from amorphous crystallizable polymers. In this process, an amorphous polymer of an inorganic glass, such as selenium, or of organic polymer, such as a polyester, is initially con-tacted with a crystal-inducing fluid under certain specified conditions. Concurrent with such contact the crystallizable polymer is subjected to physical and/or ultrasonic forces, This combination of steps results in the substantially com-plete conversion of the amorphous polymer to monodispersed crystalline particles. In the case of crystallization of amorphous selenium, this process is directive for preparation of the corresponding triclinic crystalline form of this material,

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

XEROX DISCLOSURE JOURNAL

PROCESS FOR PREPARATION OF MONO~ Proposed Classification
DISPERSED CRYSTALLINE PARTICLES U,S, Cl~ 96/1PS
FROM AMORPHOUS POLYMERS Int, Cl~ G03g
Charles L~ Beatty
John M~ Pochan

Process for preparation of monodispersed crystalline particles
from amorphous crystallizable polymers. In this process, an
amorphous polymer of an inorganic glass, such as selenium, or
of organic polymer, such as a polyester, is initially con-~
tacted with a crystal-inducing fluid under certain specified
conditions. Concurrent with such contact the crystallizable
polymer is subjected to physical and/or ultrasonic forces,
This combination of steps results in the substantially com~
plete conversion of the amorphous polymer to monodispersed
crystalline particles. In the case of crystallization of
amorphous selenium, this process is directive for preparation
of the corresponding triclinic crystalline form of this
material,

Volume 3 Number 3 May/June 1973 131

[This page contains 1 picture or other non-text object]

Page 2 of 2

8L6T aunf/Asw £ nquxn~ £ BUIflTOA lET

IVN~flOP 2HIISOflIDSIC XOH2X

[This page contains 1 picture or other non-text object]