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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) APPLICATION No:
2157/MAS/1997A
(22) Date of filing of Application:30/09/1997 (43) Publication Date: 09/06/2006
(54) Title of the invention:
THE PROCESS FOR THE PRODUCTION
OF MICRO-CELLULAR OR NON-
CELLULAR, LIGHT-STABLE
ELASTOMERIC, FLEXIBLE OR SEMI-
FLEXIBLE POLYURETHANE
MOULDINGS
(51)International classification:C 08G 18/22
(31) Priority Document No.09/068516
(32) Priority Date:01/10/1997
(33) Name of priority country:USA
(87) WIPO No. :PCT/BE97/00112
(61) Patent of addition to
Application No. :
Filed on:
(62) Divisional to
Applcation No.:
Filed on:
(71) Name of Applicant
RECTICEL
Address of Applicant:
PLEJADENLAAN 15, 1200
BRUSSELS,BELGIUM.,
BELGIUM.
(72) Name of the Inventor(s):
DU PREZ EDDIE
(57)Abstract
The process for the production of micro-cellular or non-cellular, light-stable elastomeric, flexible or semi-flexible
polyurethane mouldings The present invention relates to a process for the production of micro- cellular or noncellular,
light-stable elastomeric, flexible or semi-flexible polyurethane mouldings which are especially suited for
window encapsulation applications from a reaction mixture by the reaction injection moulding process, wherein: A)
an isocyanate component containing an isophorone diisocyanate (IPDI) trimer/monomer mixture having an NCO
content of from 24.5 to 34 % by weight, is reacted with B) isocyanate- reactive components comprising b 1) a
polyetherpolyol having terminal OH groups, an average nominal functionality of 2 to 4, and an average equivalent
weight of from 800 to 4000 ; b2) at least one chain extender
component having as functional groups only aliphatic or alicyclic OH groups; b3) at least one amine-initiator
component; in the presence of C) at least one catalyst component selected from the group consisting of organolead
(II), organobismuth (III), and organotin (IV) catalysts; D) at least one pigment component, and E) at least one
antioxidan/UV absorber component.
The Patent Office Journal 09/06/2006 10825