US1957900A - Photo-mechanical resist - Google Patents

Photo-mechanical resist Download PDF

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Publication number
US1957900A
US1957900A US510337A US51033731A US1957900A US 1957900 A US1957900 A US 1957900A US 510337 A US510337 A US 510337A US 51033731 A US51033731 A US 51033731A US 1957900 A US1957900 A US 1957900A
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US
United States
Prior art keywords
photo
coating
resin
resist
mechanical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US510337A
Inventor
Murray Alexander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to US510337A priority Critical patent/US1957900A/en
Application granted granted Critical
Publication of US1957900A publication Critical patent/US1957900A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004—Photosensitive materials
    • G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/1053—Imaging affecting physical property or radiation sensitive material, or producing nonplanar or printing surface - process, composition, or product: radiation sensitive composition or product or process of making binder containing
    • Y10S430/1055—Radiation sensitive composition or product or process of making
    • Y10S430/106—Binder containing

Definitions

  • This invention relates to a light sensitive layer and photo-mechanical resist such as is used in coating a metal, light printing the coating, developing, and then etching the metal surface.
  • furfural acetone resin on a metal plate, will give an imperfect print if the contact with the negative is good, because of the exclusion of air. Further, I have discovered that this resin will not print in the absence of oxygen.
  • the oxidizing agent is incorporated with the resin when coated, the keeping qualities are not so good as if it is not present.
  • the above diniculties can be overcome if the oxidizing agent is applied immediately before use as in a liquid coating. This will then be available to accelerate the 0 action in the absence of air due to good contact during printing.
  • a method of carrying out the invention is as follows:
  • a metal plate is coated with the following composition:
  • the moistened metal plate is then printed in contact With a Waterproof line or halftone negative. Development is carried out as before.
  • oxidizing agents which are useful as above indicated are picric acid, hydrogen peroxide, and benzoyl peroxide, but other oxidizing agents can be used.
  • What I claim is: 1. The process of making a photographic print that includes coating a suitable support with a light sensitive resinous heterocyclic compound, applying to the layer a coating of a liquid carrier and an oxidizing agent and exposing the coated support While still wet to a light image.

Description

Patented May 8, 1934 UNITED STATES PATENT OFFICE PHOTO-MECHANICAL RESIST No Drawing. Application January 21, 1931, Serial No. 510,337
2 Claims.
This invention relates to a light sensitive layer and photo-mechanical resist such as is used in coating a metal, light printing the coating, developing, and then etching the metal surface.
It has been previously known that certain resin- 5 ous five-membered heterocyclic compounds can be used as photo-sensitive materials. The compounds of furfural with ketones have been given as examples, particularly furfural-acetone resin.
I have found that furfural acetone resin, on a metal plate, will give an imperfect print if the contact with the negative is good, because of the exclusion of air. Further, I have discovered that this resin will not print in the absence of oxygen.
If the oxidizing agent is incorporated with the resin when coated, the keeping qualities are not so good as if it is not present. The above diniculties can be overcome if the oxidizing agent is applied immediately before use as in a liquid coating. This will then be available to accelerate the 0 action in the absence of air due to good contact during printing.
A method of carrying out the invention is as follows:
A metal plate is coated with the following composition:
Resin (light sensitive) grams Acetone 100 0.0.
After the coating is dry it is then flowed with a little of the following solution:
Hydrogen peroxide 25 c. c. Glycerin '75 c. c.
The moistened metal plate is then printed in contact With a Waterproof line or halftone negative. Development is carried out as before.
Examples of oxidizing agents which are useful as above indicated are picric acid, hydrogen peroxide, and benzoyl peroxide, but other oxidizing agents can be used.
I consider as included within my invention all variations and equivalents coming within the scope of the appended claims.
What I claim is: 1. The process of making a photographic print that includes coating a suitable support with a light sensitive resinous heterocyclic compound, applying to the layer a coating of a liquid carrier and an oxidizing agent and exposing the coated support While still wet to a light image.
2. The process of making a photographic print that includes coating a suitable support with a light sensitive furfural acetone resin, applying to the layer a liquid coating comprising a carrier and an oxidizing agent and exposing the coated support while still wet to a light image.
ALEXANDER MURRAY.
US510337A 1931-01-21 1931-01-21 Photo-mechanical resist Expired - Lifetime US1957900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US510337A US1957900A (en) 1931-01-21 1931-01-21 Photo-mechanical resist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US510337A US1957900A (en) 1931-01-21 1931-01-21 Photo-mechanical resist

Publications (1)

Publication Number Publication Date
US1957900A true US1957900A (en) 1934-05-08

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Application Number Title Priority Date Filing Date
US510337A Expired - Lifetime US1957900A (en) 1931-01-21 1931-01-21 Photo-mechanical resist

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760863A (en) * 1951-08-20 1956-08-28 Du Pont Photographic preparation of relief images
US2892712A (en) * 1954-04-23 1959-06-30 Du Pont Process for preparing relief images

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760863A (en) * 1951-08-20 1956-08-28 Du Pont Photographic preparation of relief images
US2892712A (en) * 1954-04-23 1959-06-30 Du Pont Process for preparing relief images

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