The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 1982
Filed:
Sep. 16, 1981
Applicant:
Inventors:
David Pendlebury, Chester, VA (US);
Hugh H Rowan, Chapel Hill, NC (US);
Edward J Buyalos, Chester, VA (US);
Assignee:
Allied Corporation, Morris Township, Morris County, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08F / ; C08L / ;
U.S. Cl.
CPC ...
525437 ; 2641 / ; 264211 ; 525439 ; 528272 ; 528274 ; 528309 ; 528310 ; 528481 ;
Abstract
This invention is an improved process to remove volatiles from molten synthetic, preferably fiber forming relatively high viscosity polymers which comprises passing molten polymer through a rotary disk polymer processor at a temperature of between 260.degree. C. and 300.degree. C. at a rate of between about 10 and 75 pounds (4.5 and 34 kg) per hour per square foot (0.093 m.sup.2) of processor filming area, at a rotational rate of between about 5 and 75 rpm for the disks, and a processor having between 1 and 20 stages.