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(12) PATENT APPLICATION PUBLICATION (21) Application No.00297/MUMNP/2004 A
(19) INDIA
(22) Date of filing of Application :20/05/2004 (43) Publication Date : 16/03/2007
(54) Title of the invention : A PROCESS FOR THE PRODUCTION OF NYLON-6 PARTIALLY ORIENTED
YARN
(51) International classification :D01F6/90 (71)Name of Applicant :
(31) Priority Document No :NA
1)MANTRI RADHEYSHYAM
(32) Priority Date :NA
Address of Applicant :B-4 SHREE SYNTHETICS
(33) Name of priority country :NA
STAFF COLONY,POST BOX
(86) International Application No :PCT/IN01/00207 NO.6,NAULAKHI,MAKSI ROAD,UJJAIN 456001 Uttar
Filing Date
:21/11/2001 Pradesh India
(87) International Publication No
:WO 03/044251
A1
2)DUBEY AVINASH
(72)Name of Inventor :
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
1)MANTRI RADHEYSHYAM
2)DUBEY AVINASH
(62) Divisional to to Application
Number
Filing Date
:NA
:NA
No of Pages : 12 No of Claims : 13
(57) Abstract :
Production of Nylon-6 Filament yarn and subsequent drawn crimped/flat yarn with enhanced productivity gain to a
level of 10-22 % at melt spinning step by incorporating 0.5 to 2.2 % by weight of specific polymer having a recurring
unit structure represented by formula (1) based on the Nylon-6 main fibre polymer predominantly in the form of
inclusions and a spinning take-up speed of 5000 mtr./min.and above. In formula (1), R1 represents an alkyl group
having up to 5 carbon atoms, R2 represents a carboxylic acid ester in which alkyl group having 1 to 5 carbon atoms
and n is a positive integer such that the average molecular weight of specific polymer (1) ranges from 10000 and
above.
The Patent Office Journal 16/03/2007 4948