Hydrophobic polyester toner composition

Claim 2

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR12## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of not less than 10 mol % and not more than 30 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR13## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof or a lower alkyl ester thereof; and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content, and

Claim 3

01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80 as determined by a methanol titration test with 100 parts by weight of said toner.

Claim 4

01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80 as determined by a methanol titration test with 100 parts by weight of said toner.

Claim 5

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR14## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR15## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content; and

Claim 6

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR14## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR15## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content; and

Claim 7

01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80 as determined by a methanol titration test with 100 parts by weight of said toner.

Claim 8

01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80 as determined by a methanol titration test with 100 parts by weight of said toner.

Claim 9

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR16## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR17## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content; and (v) a diol component represented by the general formula (3) ##STR18## (wherein R' represents an alkylene group having a carbon number of 2 to 4 and n is an integer of 2 to 4) in an amount of not less than 1.5 mol % and less than 10 mol % based on the entire monomer content, and

Claim 10

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR16## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR17## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content; and (v) a diol component represented by the general formula (3) ##STR18## (wherein R' represents an alkylene group having a carbon number of 2 to 4 and n is an integer of 2 to 4) in an amount of not less than 1.5 mol % and less than 10 mol % based on the entire monomer content, and

Claim 11

01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80, said degree determined by a methanol titration test with 100 parts by weight of said toner.

Claim 12

01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80, said degree determined by a methanol titration test with 100 parts by weight of said toner.

Claim 13

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: a linear or branched polyester having a number-average molecular weight of 300 to 1400, a tribasic or higher polybasic carboxylic acid or a derivative thereof and/or a trihydric or higher polyhydric alcohol, wherein a diol component represented by the general formula (2): ##STR19## (wherein n is an integer of 2 to 6) is used as a dihydric alcohol in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content, and 0.01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80, determined by a methanol titration test with 100 parts by weight of said toner.

Claim 14

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: a linear or branched polyester having a number-average molecular weight of 300 to 1400, a tribasic or higher polybasic carboxylic acid or a derivative thereof and/or a trihydric or higher polyhydric alcohol, wherein a diol component represented by the general formula (2): ##STR19## (wherein n is an integer of 2 to 6) is used as a dihydric alcohol in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content, and 0.01 to 1.5 parts by weight of hydrophobic silica having a degree of hydrophobic property of not less than 80, determined by a methanol titration test with 100 parts by weight of said toner.

Claim 15

A toner composition comprising a binder resin containing a polyester resin as a major composition of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR20## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of not less than 10 mol % and not more than 30 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR21## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof or a lower alkyl ester thereof; and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content, and

Claim 16

A toner composition comprising a binder resin containing a polyester resin as a major composition of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR20## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of not less than 10 mol % and not more than 30 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR21## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof or a lower alkyl ester thereof; and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content, and

Claim 17

01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 18

01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 19

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR22## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR23## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; ;and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content, and

Claim 20

A toner composition comprising a binder resin containing a polyester resin as a major component of said binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR22## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR23## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; ;and (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content, and

Claim 21

01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of hydrophobic silica is dispersed in water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 22

01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of hydrophobic silica is dispersed in water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 23

A toner composition containing a polyester resin as a major component of a binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR24## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR25## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content; and (v) a diol component represented by the general formula (3) ##STR26## (wherein R' represents an alkylene group having a carbon number of 2 to 4 and n is an integer of 2 to 4) in an amount of not less than 1.5 mol % and less than 10 mol % based on the entire monomer content, and

Claim 24

A toner composition containing a polyester resin as a major component of a binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: (i) a diol component represented by the general formula (1) ##STR24## (wherein R represents an ethylene or propylene group, x and y are each an integer of 1 or more, and the average value of x+y is 2 to 7) in an amount of less than 10 mol % based on the entire monomer content; (ii) a diol component represented by the general formula (2) ##STR25## (wherein n is an integer of 2 to 6) in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content; (iii) a dibasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof; (iv) a tribasic or higher polybasic carboxylic acid, an anhydride thereof, or a lower alkyl ester thereof in an amount of not less than 2.5 mol % and less than 15 mol % based on the entire monomer content; and (v) a diol component represented by the general formula (3) ##STR26## (wherein R' represents an alkylene group having a carbon number of 2 to 4 and n is an integer of 2 to 4) in an amount of not less than 1.5 mol % and less than 10 mol % based on the entire monomer content, and

Claim 25

01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 26

01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 27

A toner composition containing a polyester resin as a major component of a binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: a linear or branched polyester having a number-average molecular weight of 300 to 1400, a tribasic or higher polybasic carboxylic acid or a derivative thereof and/or a trihydric or higher polyhydric alcohol, wherein a diol component represented by the general formula (2): ##STR27## (wherein n is an integer of 2 to 6) is used as a dihydric alcohol in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content, and 0.01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 28

A toner composition containing a polyester resin as a major component of a binder resin, wherein said polyester resin is obtained by co-condensation polymerization of: a linear or branched polyester having a number-average molecular weight of 300 to 1400, a tribasic or higher polybasic carboxylic acid or a derivative thereof and/or a trihydric or higher polyhydric alcohol, wherein a diol component represented by the general formula (2): ##STR27## (wherein n is an integer of 2 to 6) is used as a dihydric alcohol in an amount of not less than 10 mol % and less than 25 mol % based on the entire monomer content, and 0.01 to 1.5 parts by weight of hydrophobic silica having a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1) to 100 parts by weight of said toner.

Claim 29

A toner composition according to claim 1, wherein said hydrophobic silica has a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1).

Claim 30

A toner composition according to claim 2, wherein said hydrophobic silica has a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1).

Claim 31

A toner composition according to claim 3, wherein said hydrophobic silica has a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1).

Claim 32

A toner composition according to claim 4, wherein said hydrophobic silica has a pH value of 5.5 to 8 when 4% by weight of said hydrophobic silica is dispersed in a water-methanol solution (1:1).

Claim 33

A toner composition according to claim 1, wherein said hydrophobic silica is obtained by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 34

A toner composition according to claim 2, wherein said hydrophobic silica is obtained by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 35

A toner composition according to claim 3, wherein said hydrophobic silica is obtained by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 36

A toner composition according to claim 4, wherein said hydrophobic silica is obtained by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 37

A toner composition according to claim 5, wherein said hydrophobic silica is produced by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 38

A toner composition according to claim 6, wherein said hydrophobic silica is produced by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 39

A toner composition according to claim 7, wherein said hydrophobic silica is produced by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.

Claim 40

A toner composition according to claim 8, wherein said hydrophobic silica is produced by a treatment with hexamethyldisilazane to increase said degree of hydrophobic property.