US4420500A — Composition and process for preparing transparent…

Claim 1

Independent Claim 166 words

A composition for preparing a transparent conducting film, which comprises an indium compound, a tin compound, and a solvent as essential components, the tin compound being a compound represented by the following general formula: (R).sub.a Sn(NO.sub.3).sub.b (X).sub.4-a-b ( 1) wherein R is an alkyl group having 1 to 4 carbon atoms, X is a hydroxyl group, a halogen atom, or a carboxyl group, and a and b are integers of 1˜3 and a+b≦4, the indium compound and the tin compound represented by the general formula (1) being in a mixing ratio of the indium compound to the indium compound plus the tin compound of 5-20% by weight in terms of Sn/(In+Sn)×100, and total of the indium compound and the tin compound represented by the general formula (1), and the solvent being in a proportion of 2 to 80% by weight of the total of the indium compound and the tin compound represented by the general formula (1) and 98 to 20% by weight of the solvent.

Claim 2

Dependent Claim 166 words

A composition for preparing a transparent conducting film, which comprises an indium compound, a tin compound, and a solvent as essential components, the tin compound being a compound represented by the following general formula: (R).sub.a Sn(NO.sub.3).sub.b (X).sub.4-a-b ( 1) wherein R is an alkyl group having 1 to 4 carbon atoms, X is a hydroxyl group, a halogen atom, or a carboxyl group, and a and b are integers of 1˜3 and a+b≦4, the indium compound and the tin compound represented by the general formula (1) being in a mixing ratio of the indium compound to the indium compound plus the tin compound of 5-20% by weight in terms of Sn/(In+Sn)×100, and total of the indium compound and the tin compound represented by the general formula (1), and the solvent being in a proportion of 2 to 80% by weight of the total of the indium compound and the tin compound represented by the general formula (1) and 98 to 20% by weight of the solvent.

Claim 3

Dependent Claim 96 words

The composition according to claim 1, wherein the indium compound is a compound represented by In(NO 3 ) p (Y) q , where Y is a dicarboxylic acid or dicarboxylic acid monoester whose one or two protons are dissociated, represented by .sup.⊖ OOC.R'.COOR" or .sup.⊖ OOC.R'.COO.sup.⊖, where R' represents an alkylene group, and R" is H or an alkyl group, and p+q=3 and p or q is an integer of 1 or 2 when Y is .sup.⊖ OOC.R'.COOR" and 2p+q=3 and p or q is an integer of 1 or 2 when Y is .sup.⊖ OOC.R'.COO.sup.⊖.

Claim 4

Dependent Claim 210 words

A process for preparing a transparent conducting film, which comprises coating a substrate with a composition comprising an indium compound, a tin compound, and a solvent as essential components, the tin compound being a compound represented by the following general formula: (R).sub.a Sn(NO.sub.3).sub.b (X).sub.4-a-b ( 1) wherein R is an alkyl group having 1 to 4 carbon atoms, X is a hydroxyl group, a halogen atom or a carboxyl group, and a and b are integers of 1˜3 and a+b≦4, the indium compound and the tin compound represented by the general formula (1) being in a mixing ratio of the indium compound to the indium compound plus the tin compound of 5-20% by weight in terms of Sn/(In+Sn)×100, and total of the indium compound and the tin compound represented by the general formula (1), and the solvent being in a proportion of 2 to 80% by weight of the total of the indium compound and the tin compound represented by the general formula (1) and 98 to 20% by weight of the solvent, subjecting the coated substrate to at least one of drying and ultraviolet irradiation at a substrate temperature of 200° C. or higher, when required, and then heating the substrate at a temperature of 400° C. or higher.

Claim 5

Dependent Claim 210 words

A process for preparing a transparent conducting film, which comprises coating a substrate with a composition comprising an indium compound, a tin compound, and a solvent as essential components, the tin compound being a compound represented by the following general formula: (R).sub.a Sn(NO.sub.3).sub.b (X).sub.4-a-b ( 1) wherein R is an alkyl group having 1 to 4 carbon atoms, X is a hydroxyl group, a halogen atom or a carboxyl group, and a and b are integers of 1˜3 and a+b≦4, the indium compound and the tin compound represented by the general formula (1) being in a mixing ratio of the indium compound to the indium compound plus the tin compound of 5-20% by weight in terms of Sn/(In+Sn)×100, and total of the indium compound and the tin compound represented by the general formula (1), and the solvent being in a proportion of 2 to 80% by weight of the total of the indium compound and the tin compound represented by the general formula (1) and 98 to 20% by weight of the solvent, subjecting the coated substrate to at least one of drying and ultraviolet irradiation at a substrate temperature of 200° C. or higher, when required, and then heating the substrate at a temperature of 400° C. or higher.

Claim 6

Dependent Claim 144 words

The process according to claim 3, wherein the indium compound is a compound represented by In(NO 3 ) p (Y)q, where Y is a dicarboxylic acid or dicarboxylic acid monoester whose one or two protons are dissociated, represented by .sup.⊖ OOC.R'.COOR" or .sup.⊖ OOC.R'.COO.sup.⊖, where R' represents alkyl group, and R" is H or an alkyl group, and p+q=3 and p or q is an integer of 1 or 2 when Y is .sup.⊖ OOC.R'.COOR", and 2p+q=3 and p or q an integer of 1 or 2 when Y is .sup.⊖ OOC.R'.COO.sup.⊖, the solvent consists of 80 to 98% by weight of ethyl alcohol and 20 to 2% by weight of ethylene glycol, and the tin compound represented by the general formula (1) is at least one of (CH 3 ) 2 Sn(NO 3 ) 2 and (CH 3 ) 2 Sn(NO 3 )OH.

Claim 7

Dependent Claim 26 words

The composition according to claim 1, wherein the indium compound and the tin compound are in a mixing ratio of 8-15 wt.% in terms of Sn/(In+Sn)×100.

Claim 8

Dependent Claim 125 words

The compound according to claim 1, wherein the tin compound is at least one of (CH 3 )Sn(NO 3 ) 3 , (CH 3 )Sn(NO 3 ) 2 (OH), (CH 3 Sn(NO 3 ) 2 (Cl), (CH 3 )Sn(NO 3 ) 2 (OOCC 7 H 15 ), (CH 3 ) 2 Sn(NO 3 ) 2 , (CH 3 ) 2 Sn(NO 3 )OH, (CH 3 ) 2 Sn(NO 3 )(F), (CH 3 ) 2 Sn(NO 3 ) (OOCC 4 H 9 ), (CH 3 ) 3 Sn(NO 3 ), (C 2 H 5 ) 2 Sn(NO 3 ) 2 , (C 3 H 5 ) 2 Sn(NO 3 ) (OH), and (C 4 H 5 ) 2 Sn(NO 3 ) (OOCC 7 H 15 ).

Claim 9

Dependent Claim 42 words

The composition according to claim 1, wherein the solvent is at least one alcohol or a mixture containing at least 60 wt.% of an alcohol and at least one solvent selected from the group consisting of ketone, an ester and an ether.

Claim 10

Dependent Claim 21 words

The composition according to claim 1, wherein the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol.

Claim 11

Dependent Claim 51 words

The composition according to claim 1, wherein the tin compound is at least one of (CH 3 ) 2 Sn(NO 3 ) 2 and (CH 3 ) 2 Sn(NO 3 )(OH), and Sn/(In+Sn) is 8-15 wt.%, and the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol.

Claim 12

Dependent Claim 26 words

The composition according to claim 2, wherein the indium compound and the tin compound are in a mixing ratio of 8-15 wt.% in terms of Sn/(In+Sn)×100.

Claim 13

Dependent Claim 122 words

The composition according to claim 2, wherein the tin compound is at least one of (CH 3 )Sn(NO 3 ) 3 , (CH 3 )Sn(NO 3 ) 2 (OH), (CH 3 )Sn(NO 3 ) 2 (Cl), (CH 3 )Sn(NO 3 ) 2 (OOCC 7 H 15 ), (CH 3 ) 2 Sn(NO 3 ) 2 , (CH 3 ) 2 Sn(NO 3 )OH, (CH 3 ) 2 Sn(NO 3 )(F), (CH 3 ) 2 Sn(NO 3 )(OOCC 4 H 9 ), (CH 3 ) 3 Sn(NO 3 ), (C 2 H 5 ) 2 Sn(NO 3 ) 2 , (C 3 H 5 ) 2 Sn(NO 3 )(OH) and (C 4 H 5 ) 2 Sn(NO 3 )(OOCC 7 H 15 ).

Claim 14

Dependent Claim 31 words

The composition according to claim 2, wherein Y in In(NO 3 ) p (Y) q is succinic acid, methylsuccinic acid, malonic acid, maleic acid, citraconic acid, intaconic acid or their monoester.

Claim 15

Dependent Claim 43 words

The composition accord to claim 2, wherein the solvent is at least one alcohol or a mixture containing at least 60 wt.% of an alcohol and at least one solvent selected from the group consisting of a ketone, an ester and an ether.

Claim 16

Dependent Claim 21 words

The composition according to claim 2, wherein the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol.

Claim 17

Dependent Claim 62 words

The composition according to claim 2, wherein the tin compound is at least one of (CH 3 ) 2 Sn(NO 3 ) 2 and (CH 3 ) 2 Sn(NO 3 )(OH), and Sn/(In+Sn) is 8-15 wt.%, the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 Wt.% of ethyleneglycol, and Y is methyl-succinic acid, citraconic acid, monomethyl methylsuccinate or monoethyl citraconate.

Claim 18

Dependent Claim 26 words

The process according to claim 3, wherein the indium compound and the tin compound are in a mixing ratio of 8-15 wt.% in terms of Sn/(In+Sn)×100.

Claim 19

Dependent Claim 122 words

The process according to claim 3, wherein the tin compound is at least one of (CH 3 )Sn(NO 3 ) 3 , (CH 3 )Sn(NO 3 ) 2 (OH), (CH 3 )Sn(NO 3 ) 2 (Cl), (CH 3 )Sn(NO 3 ) 2 (OOCC 7 H 15 ), (CH 3 ) 2 Sn(NO 3 ) 2 , (CH 3 ) 2 Sn(NO 3 )OH, (CH 3 ) 2 Sn(NO 3 )(F), (CH 3 ) 2 Sn(NO 3 )(OOCC 4 H 9 ), (CH 3 ) 3 Sn(NO 3 ), (C 2 H 5 ) 2 Sn(NO 3 ) 2 , (C 3 H 5 ) 2 Sn(NO 3 )(OH), and (C 4 H 5 ) 2 Sn(NO 3 )(OOCC 7 H 15 ).

Claim 20

Dependent Claim 42 words

The process according to claim 3, wherein the solvent is at least one alcohol or a mixture containing at least 60 wt.% of an alcohol and at least one solvent from the group consisting of a ketone, an ester and an ether.

Claim 21

Dependent Claim 21 words

The process according to claim 3, wherein the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol.

Claim 22

Dependent Claim 51 words

The process according to claim 3, wherein the tin compound is at least one of (CH 3 ) 2 Sn(NO 3 ) 2 and (CH 3 ) 2 Sn(NO 3 )(OH), and Sn/(In+Sn) is 8-15 wt.%, and the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol.

Claim 23

Dependent Claim 96 words

The process according to claim 1, wherein the indium compound is a compound represented by In(NO 3 ) p (Y) q , where Y is a dicarboxylic acid or dicarboxylic acid monether whose one or two protons are dissociated, represented by .sup.⊖ OOC.R'.COOR" or .sup.⊖ OOC.R'.COO.sup.⊖, where R' represents an alkylene group, and R" is H or an alkyl group, and p+q=3 and p or q is an integer of 1 or 2 when Y is .sup.⊖ OOC.R'.COOR" and 2p+q=3 and p or q is an integer of 1 or 2 when Y is .sup.⊖ OOC.R'.COO.sup.⊖.

Claim 24

Dependent Claim 26 words

The process according to claim 21, wherein the indium compound and the tin compound are in a mixing ratio of 8-15 wt.% in terms of Sn/(In+Sn)×100.

Claim 25

Dependent Claim 122 words

The process according to claim 21, wherein the tin compound is at least one of (CH 3 )Sn(NO 3 ) 3 , (CH 3 )Sn(NO 3 ) 2 (OH), (CH 3 )Sn(NO 3 ) 2 (Cl), (CH 3 )Sn(NO 3 ) 2 (OOCC 7 H 15 ), (CH 3 ) 2 Sn(NO 3 ) 2 , (CH 3 ) 2 Sn(NO 3 )OH, (CH 3 ) 2 Sn(NO 3 )(F), (CH 3 ) 2 Sn(NO 3 )(OOCC 4 H 9 ), (CH 3 ) 3 Sn(NO 3 ), (C 2 H 5 ) 2 Sn(NO 3 ) 2 , (C 3 H 5 ) 2 Sn(NO 3 )(OH) and (C 4 H 5 ) 2 Sn(NO 3 )(OOCC 7 H 15 ).

Claim 26

Dependent Claim 31 words

The process according to claim 21, wherein Y in In(NO 3 ) p (Y) q is succinic acid, methylsuccinic acid, malonic acid, maleic acid, citraconic acid, intaconic acid or their monoester.

Claim 27

Dependent Claim 21 words

The process according to claim 21, wherein the solvent is an alcohol or contains at least 60 wt.% of an alcohol.

Claim 28

Dependent Claim 21 words

The process according to claim 21, wherein the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol.

Claim 29

Dependent Claim 62 words

The process according to claim 21, wherein the tin compound is at least one of (CH 3 ) 2 Sn(NO 3 ) 2 and (CH 3 ) 2 Sn(NO 3 )(OH), and Sn/(In+Sn) is 8-15 wt.%, the solvent consists of 80-98 wt.% of ethyl alcohol and 20-2 wt.% of ethyleneglycol, and Y is methyl-succinic acid, citraconic acid, monomethyl methylsuccinate or monoethyl citraconate.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1986-12-12	1987-06-13	1987-12-13	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1990-12-12	1991-06-13	1991-12-13	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1994-12-12	1995-06-13	1995-12-13	$7700.00	Window Closed / Lapsed

Composition and process for preparing transparent conducting film

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