US5135678A — Liquid crystal device

Claim 1

Independent Claim 331 words

A liquid crystal device comprising an orientation film which is formed by building up at least one mixed monomolecular film on a substrate having thereon an electrode layer, said mixed monomolecular film being obtained by spreading a mixture of (a) an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (I): ##STR8## wherein at least one of R 1 and R 2 represents a group characterized by benzenoid unsaturation having at least 6 carbon atoms; and R 3 , R 4 , R 5 , and R 6 ,which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted monovalent aliphatic groups having from 1 to 30 carbon atoms, a substituted or unsubstituted monovalent group composed of an alicyclic group and an aliphatic group having up to 30 carbon atoms in total, or a substituted or unsubstituted monovalent group composed of an aromatic group and an aliphatic group having up to 30 carbon atoms in total, the substituent being selected from a halogen atom, a nitro group, an amino group, a cyano group, a methoxy group, and an acetoxy group; at least one of R 3 , R 4 , R 5 , and R 6 is a group other than those having from 1 to 11 carbon atoms or a hydrogen atom, (b) an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (II): ##STR9## wherein R 1 , R 2 , R 3 , and R 4 are as defined above, at least one of R 3 and R 4 being a group other than those having from 1 to 11 carbon atoms or a hydrogen atom, and (c) at least one low-molecular weight substance, the (a)/(b)/(c) mixing ratio being arbitrary, on a water surface, and subjecting the film to a heat treatment to cause cyclization.

Claim 2

Dependent Claim 331 words

A liquid crystal device comprising an orientation film which is formed by building up at least one mixed monomolecular film on a substrate having thereon an electrode layer, said mixed monomolecular film being obtained by spreading a mixture of (a) an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (I): ##STR8## wherein at least one of R 1 and R 2 represents a group characterized by benzenoid unsaturation having at least 6 carbon atoms; and R 3 , R 4 , R 5 , and R 6 ,which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted monovalent aliphatic groups having from 1 to 30 carbon atoms, a substituted or unsubstituted monovalent group composed of an alicyclic group and an aliphatic group having up to 30 carbon atoms in total, or a substituted or unsubstituted monovalent group composed of an aromatic group and an aliphatic group having up to 30 carbon atoms in total, the substituent being selected from a halogen atom, a nitro group, an amino group, a cyano group, a methoxy group, and an acetoxy group; at least one of R 3 , R 4 , R 5 , and R 6 is a group other than those having from 1 to 11 carbon atoms or a hydrogen atom, (b) an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (II): ##STR9## wherein R 1 , R 2 , R 3 , and R 4 are as defined above, at least one of R 3 and R 4 being a group other than those having from 1 to 11 carbon atoms or a hydrogen atom, and (c) at least one low-molecular weight substance, the (a)/(b)/(c) mixing ratio being arbitrary, on a water surface, and subjecting the film to a heat treatment to cause cyclization.

Claim 3

Dependent Claim 41 words

A liquid crystal device as claimed in claim 1, wherein said low-molecular weight substance is selected from the group consisting of an alcohol having from 10 to 30 carbon atoms and a carboxylic acid having from 10 to 30 carbon atoms.

Claim 4

Dependent Claim 25 words

A liquid crystal device as claimed in claim 1, wherein a mixing ratio by weight of the high-molecular weight compounds (a)/(b) om 9/1 to 1/10.

Claim 5

Dependent Claim 42 words

A liquid crystal device as claimed in claim 1, wherein the low molecular weight compound (c) is used in an amount of 1/20 to 1/2 times by weight with respect to a total amount of the high-molecular weight compounds (a) and (b).

Claim 6

Dependent Claim 301 words

A liquid crystal device comprising an orientation film, said orientation film is a built-up film of at least one mixed monomolecular film on a substrate having thereon an electrode layer, comprising (a) a cyclized substance of an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (I) ##STR10## wherein at least one of R 1 and R 2 represents a group characterized by benzenoid unsaturation having at least 6 carbon atoms; and R 3 , R 4 , R 5 , and R 6 , which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted monovalent aliphatic group having from 1 to 30 carbon atoms, a substituted or unsubstituted monovalent group composed of an alicyclic group and an aliphatic group having up to 30 carbon atoms in total, or a substituted or unsubstituted monovalent group composed of an aromatic group and an aliphatic group having up to 30 carbon atoms in total, the substituent being selected from a halogen atom, a nitro group, an amino group, a cyano group, a methoxy group, and an acetoxy group, at least one of R 3 , R 4 , R 5 , and R 6 is a group other than those having from 1 to 11 carbon atoms or a hydrogen atom, and (b) an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (II): ##STR11## wherein R 1 , R 2 , R 3 , and R 4 are defined above, and at least one of R 3 , and R 4 being a group other than those having from 1 to 11 carbon atoms or a hydrogen atom.

Claim 7

Dependent Claim 301 words

A liquid crystal device comprising an orientation film, said orientation film is a built-up film of at least one mixed monomolecular film on a substrate having thereon an electrode layer, comprising (a) a cyclized substance of an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (I) ##STR10## wherein at least one of R 1 and R 2 represents a group characterized by benzenoid unsaturation having at least 6 carbon atoms; and R 3 , R 4 , R 5 , and R 6 , which may be the same or different, each represents a hydrogen atom, a substituted or unsubstituted monovalent aliphatic group having from 1 to 30 carbon atoms, a substituted or unsubstituted monovalent group composed of an alicyclic group and an aliphatic group having up to 30 carbon atoms in total, or a substituted or unsubstituted monovalent group composed of an aromatic group and an aliphatic group having up to 30 carbon atoms in total, the substituent being selected from a halogen atom, a nitro group, an amino group, a cyano group, a methoxy group, and an acetoxy group, at least one of R 3 , R 4 , R 5 , and R 6 is a group other than those having from 1 to 11 carbon atoms or a hydrogen atom, and (b) an amphiphilic high-molecular weight substance having a number average molecular weight of from 2,000 to 300,000 and containing a repeating unit represented by formula (II): ##STR11## wherein R 1 , R 2 , R 3 , and R 4 are defined above, and at least one of R 3 , and R 4 being a group other than those having from 1 to 11 carbon atoms or a hydrogen atom.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1995-08-04	1996-02-03	1996-08-04	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1999-08-04	2000-02-03	2000-08-04	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2003-08-04	2004-02-03	2004-08-04	$7700.00	Window Closed / Lapsed

Liquid crystal device

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