US5045426A — Toner adhesion-enhancing coating for security doc…

Claim 1

Independent Claim 79 words

A toner adhesion-enhancing coated cellulosic product comprising a cellulosic web having first and second major surfaces, at least one of said major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a cross-linked copolymer formed from a mixture of a dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer.

Claim 2

Dependent Claim 79 words

A toner adhesion-enhancing coated cellulosic product comprising a cellulosic web having first and second major surfaces, at least one of said major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a cross-linked copolymer formed from a mixture of a dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer.

Claim 3

Dependent Claim 16 words

The coated product of claim 1 in which said toner adhesion-enhancing composition includes a coloring agent.

Claim 4

Dependent Claim 20 words

The coated product of claim 2 in which said coloring agent is a dye contained in a plurality of microcapsules.

Claim 5

Dependent Claim 18 words

The coated product of claim 3 in which said microcapsules are less than about 5.0 micrometers in diameter.

Claim 6

Dependent Claim 20 words

The coated product of claim 4 in which said microcapsules are between about 2.0 to about 2.5 micrometers in diameter.

Claim 7

Dependent Claim 22 words

The coated product of claim 1 in which said toner adhesion-enhancing composition is coated only on selected portions of said cellulosic web.

Claim 8

Dependent Claim 25 words

The coated product of claim 1 in which said toner adhesion-enhancing composition is applied at a coating weight of between about 0.3 and 1.0 lb/ream.

Claim 9

Dependent Claim 14 words

The coated product of claim 1 in which said coating further includes a plasticizer.

Claim 10

Dependent Claim 29 words

The coated product of claim 8 in which said plasticizer comprises a phthalate ester in an amount of less than about 10% by weight of said toner adhesion-enhancing composition.

Claim 11

Dependent Claim 88 words

A security document having enhanced toner adhesion characteristics for printing with a noncontact printing device comprising a cellulosic web having first and second major surfaces, at least one of said major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a cross-linked copolymer formed from a mixture of a dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer.

Claim 12

Dependent Claim 88 words

A security document having enhanced toner adhesion characteristics for printing with a noncontact printing device comprising a cellulosic web having first and second major surfaces, at least one of said major surfaces having coated thereon a polymeric toner adhesion-enhancing composition comprising a cross-linked copolymer formed from a mixture of a dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer.

Claim 13

Dependent Claim 16 words

The security document of claim 10 in which said toner adhesion-enhancing composition includes a coloring agent.

Claim 14

Dependent Claim 20 words

The security document of claim 11 in which said coloring agent is a dye contained in a plurality of microcapsules.

Claim 15

Dependent Claim 18 words

The security document of claim 12 in which said microcapsules are less than about 5.0 micrometers in diameter.

Claim 16

Dependent Claim 20 words

The security document of claim 13 in which said microcapsules are between about 2.0 to about 2.5 micrometers in diameter.

Claim 17

Dependent Claim 31 words

The security document of claim 10 in which said toner adhesion-enhancing composition is coated only on selected portions of said cellulosic web where MICR code, payee, and/or amount information is printed.

Claim 18

Dependent Claim 25 words

The security document of claim 10 in which said toner adhesion-enhancing composition is applied at a coating weight of between about 0.3 and 1.0 lb/ream.

Claim 19

Dependent Claim 14 words

The security document of claim 10 in which said coating further includes a plasticizer.

Claim 20

Dependent Claim 29 words

The security document of claim 17 in which said plasticizer comprises a phthalate ester in an amount of less than about 10% by weight of said toner adhesion-enhancing composition.

Claim 21

Independent Claim 125 words

A method of printing a document using a noncontact printing device comprising the steps of forming a latent image of said document on an imaging drum, applying a toner to said latent image, transferring said latent image to a surface of a cellulosic web product having coated thereon a polymeric toner adhesion-enhancing composition comprising a mixture of a dispersion of copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer, said adhesion-enhancing composition having been dried to form a cross-linked copolymer, and thereafter fusing said toner to said surface of said cellulosic product by the application of heat and pressure.

Claim 22

Independent Claim 125 words

A method of printing a document using a noncontact printing device comprising the steps of forming a latent image of said document on an imaging drum, applying a toner to said latent image, transferring said latent image to a surface of a cellulosic web product having coated thereon a polymeric toner adhesion-enhancing composition comprising a mixture of a dispersion of copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. and about 1 to about 5% by weight zinc as a cross-linking agent for said copolymer, said adhesion-enhancing composition having been dried to form a cross-linked copolymer, and thereafter fusing said toner to said surface of said cellulosic product by the application of heat and pressure.

Claim 23

Dependent Claim 15 words

The method of claim 19 in which said toner adhesion-enhancing composition includes a coloring agent.

Claim 24

Dependent Claim 30 words

The method of claim 19 in which said toner adhesion-enhancing composition is coated only on selected portions of said cellulosic web where MICR code, payee, and/or amount information is printed.

Claim 25

Dependent Claim 24 words

The method of claim 19 in which said toner adhesion-enhancing composition is applied at a coating weight of between about 0.3 and 1.0 lb/ream.

Claim 26

Dependent Claim 13 words

The method of claim 19 in which said coating further includes a plasticizer.

Claim 27

Dependent Claim 28 words

The method of claim 23 in which said plasticizer comprises a phthalate ester in an amount of less than about 10% by weight of said toner adhesion-enhancing composition.

Claim 28

Independent Claim 97 words

A method for making a toner adhesion-enhancing coated cellulosic product comprising a cellulosic web having first and second major surfaces, by coating on at least one of said major surfaces a polymeric toner adhesion-enhancing composition, wherein said adhesion-enhancing composition is formed by mixing an aqueous dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. with a zinc oxide ammonia cross-linking agent complex-contained in an aqueous alkaline solution, and drying said adhesion-enhancing composition which has been coated on said surface to form a cross-linked copolymer.

Claim 29

Independent Claim 97 words

A method for making a toner adhesion-enhancing coated cellulosic product comprising a cellulosic web having first and second major surfaces, by coating on at least one of said major surfaces a polymeric toner adhesion-enhancing composition, wherein said adhesion-enhancing composition is formed by mixing an aqueous dispersion of a copolymer of styrene and acrylic acid having a glass transition temperature of between about -16 and 22 degrees C. with a zinc oxide ammonia cross-linking agent complex-contained in an aqueous alkaline solution, and drying said adhesion-enhancing composition which has been coated on said surface to form a cross-linked copolymer.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1994-09-02	1995-03-04	1995-09-03	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1998-09-02	1999-03-04	1999-09-03	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2002-09-02	2003-03-04	2003-09-03	$7700.00	Window Closed / Lapsed

Toner adhesion-enhancing coating for security documents

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