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US 11,739,266 B2Granted
Polymerisable compounds and the use thereof in liquid-crystal displays
AssigneeMerck Patent GmbH
InventorsQiong Tong, Rocco Fortte, Helmut Haensel, Edward Plummer, Timo Uebel, Oliver Heppert
Life of this patent
Estimating the term…
Abstract
The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.
Claims25
A compound of formula I
- P-Sp-A1-(Z1-A2)z-Rb I
- wherein
- Rb is P-Sp- or R,
- R is F, Cl, —CN or a straight chain alkyl having 1 to 25 C atoms or a branched alkyl or a cyclic alkyl having 3 to 25 C atoms, wherein one or more non-adjacent CH2-groups are optionally replaced by -O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by F or Cl,
- P is a polymerisable group,
- Sp is a spacer group which is optionally substituted by P, or is a single bond,
- A1, A2 each independently denotes benzene, naphthalene, phenanthrene, anthracene, dibenzofuran or dibenzothiophene, all of which are optionally substituted by one or more groups A, L or P-Sp-, and wherein at least one group A1 or A2 is substituted by at least one group A,
- Z1 is —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —(CH2)n1—, —CF2CH2—, —CH2CF2—, —(CF2)n1—, —CH═CH—, —CF═CF—, —CH═CF—, —CF═CH—, —C≡C—, —CH═CH—CO—O—, —O—CO—, —CH═CH—, —CH2—CH2—CO—O—, —O—CO—CH2—CH2—, —CR0R00—, or a single bond,
- R0, R00 each independently denotes H or alkyl having 1 to 12 C atoms,
- A is alkenyl with 3 to 7 C-atoms,
- L is F, Cl, —CN, P-Sp- or a straight chain alkyl having 1 to 25 C atoms or a branched alkyl or a cyclic alkyl having 3 to 25 C atoms, wherein one or more non-adjacent CH2-groups are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by P-Sp-, F or Cl,
- z 0, 1, 2 or 3, and
- n1 1, 2, 3 or 4.
10 more elements
A compound of formula II
- Pg-Sp-A1-(Z1-A2)z-Rb1 II
- wherein
- Pg is OH, or protected or masked hydroxyl,
- Rb1 is R or Pg-Sp-,
- R is F, Cl, —CN or a straight chain alkyl having 1 to 25 C atoms or a branched alkyl having or a cyclic alkyl having 3 to 25 C atoms, wherein one or more non-adjacent CH2-groups are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by F or Cl,
- is a polymerisable group,
- Sp is a spacer group which is optionally substituted by P, or a single bond,
- A1, A2 is a monocyclic or polycyclic aromatic or heteroaromatic group with 4 to 20 ring atoms, which is optionally substituted by one or more groups L, A or P-Sp-,
- Z1 is —O—, —S—, —CO—, —CO—O—, —O—CO—, —O—CO—O—, —OCH2—, —CH2O—, —SCH2—, —CH2S—, —CF2O—, —OCF2—, —CF2S—, —SCF2—, —(CH2)n1—, —CF2CH2—, —CH2CF2—, —(CF2)n1—, —CH═CH—, —CF═CF—, —CH═CF—, —CF═CH—, —C≡C—, —CH═CH—CO—O—, —O—CO—, —CH═CH—, —CH2—CH2—CO—O—, —O—CO—CH2—CH2—, -CR0R00—, or a single bond,
- R0, R00 is H or alkyl having 1 to 12 C atoms,
- A is alkenyl with 2 to 7 C-atoms,
- L is F, Cl, —CN, P-Sp- or a straight chain alkyl having 1 to 25 C atoms or a branched alkyl or a cyclic alkyl having 3 to 25 C atoms, wherein one or more non-adjacent CH2-groups are optionally replaced by —O—, —S—, —CO—, —CO—O—, —O—CO—, or —O—CO—O— in such a manner that O- and/or S-atoms are not directly connected with each other, and wherein one or more H atoms are each optionally replaced by P-Sp-, F or Cl,
- z is 0, 1, 2 or 3,
- n1 is 1, 2, 3 or 4,
- and wherein at least one of A1 and A2 is substituted by at least one group A.
12 more elements
A compound of formula I5A-2
- wherein
- P is a polymerisable group,
- Sp is a spacer group which is optionally substituted by P, or is a single bond, and
- A is alkenyl with 2 to 7 C-atoms.
1 more element
Dependencies are inferred from the claim text.