US4487823A — Light-sensitive copying material and process for …

Claim 1

Independent Claim 148 words

A light-sensitive copying material, comprising: a support sheet; and a light-sensitive layer which undergoes a change in solubility in a developer upon exposure to actinic light so that when said layer is selectively exposed to a light image, selected areas of said layer can be dissolved in an aqueous developer while the remaining areas will resist dissolution in said developer to form a developed image corresponding to said light image, said light-sensitive layer comprising in admixture at least one light-sensitive component and from about 0.01 to 10 percent by weight based on the weight of the light-sensitive layer of a surfactant having a molecular weight in the range from about 300 to 3,500 and comprised of a non-ionic ester obtained by reacting a perfluorinated alkane carboxylic acid with a polyalkylene glycol or an ether obtained by reacting a highly fluorinated or a perfluorinated alkanol with a polyalkylene glycol.

Claim 2

Dependent Claim 148 words

A light-sensitive copying material, comprising: a support sheet; and a light-sensitive layer which undergoes a change in solubility in a developer upon exposure to actinic light so that when said layer is selectively exposed to a light image, selected areas of said layer can be dissolved in an aqueous developer while the remaining areas will resist dissolution in said developer to form a developed image corresponding to said light image, said light-sensitive layer comprising in admixture at least one light-sensitive component and from about 0.01 to 10 percent by weight based on the weight of the light-sensitive layer of a surfactant having a molecular weight in the range from about 300 to 3,500 and comprised of a non-ionic ester obtained by reacting a perfluorinated alkane carboxylic acid with a polyalkylene glycol or an ether obtained by reacting a highly fluorinated or a perfluorinated alkanol with a polyalkylene glycol.

Claim 3

Dependent Claim 49 words

A light-sensitive copying material as claimed in claim 1, wherein said fluorinated surfactant is contained in said light-sensitive layer in a quantity sufficient to reduce in a linear manner by about 40 to 75 percent the spreading capacity on a support of a coating solution containing the layer components.

Claim 4

Dependent Claim 50 words

A light-sensitive copying material as claimed in claim 1, wherein said fluorinated surfactant is contained in said light-sensitive layer in a quantity sufficient to reduce the surface tension of the light-sensitive layer toward water by 2 to 12 mN/m, as compared with a layer which is free of said surfactant.

Claim 5

Dependent Claim 78 words

A light-sensitive copying material as claimed in claim 1, wherein said fluorinated surfactant comprises a compound having the formula R.sub.f (CO).sub.r (OC.sub.m H.sub.2m).sub.n OR in which R f is a fluorinated alkyl group comprising from 2 to 12 carbon atoms, R is a hydrogen atom or a group R f (CO) r , m is an integer ranging from 2 to 5, n is an integer ranging from 4 to about 40, and r is zero or 1.

Claim 6

Dependent Claim 26 words

A light-sensitive copying material as claimed in claim 1, wherein the solubility of said light-sensitive layer in a developer is increased by exposure to actinic light.

Claim 7

Dependent Claim 21 words

A light-sensitive copying material as claimed in claim 5, wherein said light-sensitive layer contains as the light-sensitive compound an o-quinone diazide.

Claim 8

Dependent Claim 26 words

A light-sensitive copying material as claimed in claim 1, wherein the solubility of said light-sensitive layer in a developer is reduced by exposure to actinic light.

Claim 9

Dependent Claim 23 words

A light-sensitive copying material as claimed in claim 7, wherein said light-sensitive layer contains as the light-sensitive compound a diazonium salt polycondensation product.

Claim 10

Dependent Claim 17 words

A light-sensitive copying material as claimed in claim 7, wherein said light-sensitive layer comprises a photopolymerizable layer.

Claim 11

Dependent Claim 146 words

A light-sensitive copying material produced by: coating a support sheet with a solution comprising at least one light-sensitive component selected from the group consisting of diazo compounds, mixtures of an acid cleavable compound and a photolytic acid donor, mixtures of an ethylenically unsaturated compound and a photoinitiator, and photoconductive materials and from about 0.005 to 1 percent of a non-ionic fluorinated surfactant dissolved in a single organic solvent, to form a thin layer of the solution on the support, said surfactant having a molecular weight in the range from about 300 to 3,500 and comprising a non-ionic ester obtained by reacting a perfluorinated alkane carboxylic acid with a polyalkylene glycol or an ether obtained by reacting a highly fluorinated or a perfluorinated alkanol with a polyalkylene glycol; and drying the thin layer to remove the solvent therefrom to produce a light-sensitive layer on the support sheet.

Claim 12

Dependent Claim 146 words

A light-sensitive copying material produced by: coating a support sheet with a solution comprising at least one light-sensitive component selected from the group consisting of diazo compounds, mixtures of an acid cleavable compound and a photolytic acid donor, mixtures of an ethylenically unsaturated compound and a photoinitiator, and photoconductive materials and from about 0.005 to 1 percent of a non-ionic fluorinated surfactant dissolved in a single organic solvent, to form a thin layer of the solution on the support, said surfactant having a molecular weight in the range from about 300 to 3,500 and comprising a non-ionic ester obtained by reacting a perfluorinated alkane carboxylic acid with a polyalkylene glycol or an ether obtained by reacting a highly fluorinated or a perfluorinated alkanol with a polyalkylene glycol; and drying the thin layer to remove the solvent therefrom to produce a light-sensitive layer on the support sheet.

Claim 13

Dependent Claim 41 words

A light-sensitive material as claimed in claim 10, wherein said fluorinated surfactant is present in a quantity sufficient to reduce the spreading capacity on the support layer of the coating solution in a linear manner by about 40 to 75 percent.

Claim 14

Dependent Claim 18 words

A light-sensitive copying material according to claim 10 wherein said light-sensitive component is a diazonium salt polycondensation product.

Claim 15

Dependent Claim 28 words

A light-sensitive copying material according to claim 10 wherein said single solvent is selected from the group consisting of ethylene glycol monomethyl ether, cyclohexanone, tetrahydrofuran, dioxane and dichloroethane.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1987-12-11	1988-06-11	1988-12-11	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1991-12-11	1992-06-11	1992-12-11	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1995-12-11	1996-06-11	1996-12-11	$7700.00	Window Closed / Lapsed

Light-sensitive copying material and process for the manufacture thereof utilizing non-ionic fluorinated ester surfactant

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