continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6801/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :07/08/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "CHIRAL COMPOUNDS, AND LIQUID CRYSTAL COMPOSITIONS AND POLYMER NETWORKS
DERIVED THEREFROM"
(51) International classification :C07D 493/04 (71)Name of Applicant :
(31) Priority Document No :60/787,829
1)E.I. DU PONT DE NEMOURS AND COMPANY
(32) Priority Date :31/03/2006
Address of Applicant :1007 MARKET STREET,
(33) Name of priority country :U.S.A.
WILMINGTON, DELAWARE 19898, U.S.A. U.S.A.
(86) International Application No :PCT/US2007/008080 (72)Name of Inventor :
Filing Date
:02/04/2007
1)MARC GOLDFINGER
(87) International Publication No :WO 20078/120459 2)JOSE MANUEL RODRIGUEZ-PARADA
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
3)LEE SILVERMAN
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
The invention relates to compounds of formula (1): wherein R1 and R2 are each independently selected from the group: H, F, C1 and
CH3; nl and n2 are each independently integers 3 to 20; q and r are each independently integers 0, 1 or 2, with the proviso that q + r is
>1; D is a divalent chiral radical seiected from the group: wherein RJ is a CI to C6 straight or branched chain alkyl group; and each B'
and B"1 is a divalent radical independently selected from the group: R^-substituted-l ,4-phenyl, wherein R4 is H, -CH3 or -OCH3,
2,6-naphthyI; and 4,4'-biphenyl; with the provisos that when q +r- 3, at least one of B1 and B2 is R -substituted-1,4-phenyl; and when
q + r = 4, at least two of B1 and B2 are R4-substituted-1,4-phenyl. The invention further relates to liquid crystal compositions
comprising compounds of formula (I) and polymer networks derived from the polymerization of the liquid crystal compositions.
No. of Pages : 55 No. of Claims : 10
The Patent Office Journal 24/10/2008 26219