US3878075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerization of pigmented binders using combinations of organic carbonyls and halogenated naphthalenes
Assignee: SCM Corp
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Filing: 1974-07-03
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Granted: 1975-04-15
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Expires: 1994-07-03
Abstract
Abstract An improved process for laser or UV curing of pigmented-binder systems comprising ethylenically unsaturated polymers containing at least about 0.05 weight parts of opacifying pigment per weight part of binder wherein the pigmented-binder system includes from about 0.5% up to about 3% of a halogenated derivative of naphthalene in combination with about 0.1 to 2% aromatic amino carbonyl photosensitizers and from about 0.5% to 2% aromatic ketone or aldehyde photosensitizers. The sensitized binder system is a substantially improved system suitable for curing by ultraviolet or laser energy sources.
Inventors
- 👤 Vincent Daniel Mcginniss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; G03F7/0295; C; C08; C08F; C08F2/00; C08F2/46; C08F2/48; C08F2/50; C08K; C08K5/00; C08K5/02; C08K5/03; C08K5/04; C08K5/07; C08K5/16; C09; C09D; C09D133/00; C09D133/04; C09D183/00; C09D183/10; B; B05; B05D; B05D3/00; B05D3/04; B05D3/0486; B05D3/06; B05D3/061; B05D3/065; B05D3/067; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/146
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
128 words
IN A PHOTOPOLYMERIZATION PROCESS FOR ULTRAVIOLET CURING OF A FILM COMPRISING A PIGMENTED BINDER SYSTEM OF 1 WEIGHT PART OF AN ETHYLENICALLY UNSATURATED BINDER COMBINED WITH ABOUT 0.05 TO 2 WEIGHT PARTS OF OPACIFYING PIGMENT, AND EXPOSING SAID FILM TO AN ENERGY SOURCE CONTANING UV ENERGY HAVING WAVELENGTHS BETWEEN ABOUT 1600A AND 4000A UNTIL SAID FILEM IS CURED, THE IMPROVEMENT WHICH COMPRISES: PROVIDING A FILM OF SAID PIGMENTED BINDER SYSTEM CONTANING BY WEIGHT ABOUT 0.5% TO 3% HALOGENAED DERIVATIVE OF NAPHTHALENE HAVING AT LEAST ONE HALOGEN ATTACHED TO THE ALPHAATOM ATTACHED TO THE NAPHTHALENE RING, 0.1% OF 2% OF AN AROMATIC PHENYL KETONE, AND AT LEAST 0.5& OF AN AROMATIC PHOTOSENSITIZER SELECTED FROM THE GROUP CONSISTING OF AROMATIC ALDEHYDES AND AROMATIC KETONES DIFFERENT THAN SAID ATOMATIC PHENYL KETONE.
Claim 2
Dependent Claim
128 words
IN A PHOTOPOLYMERIZATION PROCESS FOR ULTRAVIOLET CURING OF A FILM COMPRISING A PIGMENTED BINDER SYSTEM OF 1 WEIGHT PART OF AN ETHYLENICALLY UNSATURATED BINDER COMBINED WITH ABOUT 0.05 TO 2 WEIGHT PARTS OF OPACIFYING PIGMENT, AND EXPOSING SAID FILM TO AN ENERGY SOURCE CONTANING UV ENERGY HAVING WAVELENGTHS BETWEEN ABOUT 1600A AND 4000A UNTIL SAID FILEM IS CURED, THE IMPROVEMENT WHICH COMPRISES: PROVIDING A FILM OF SAID PIGMENTED BINDER SYSTEM CONTANING BY WEIGHT ABOUT 0.5% TO 3% HALOGENAED DERIVATIVE OF NAPHTHALENE HAVING AT LEAST ONE HALOGEN ATTACHED TO THE ALPHAATOM ATTACHED TO THE NAPHTHALENE RING, 0.1% OF 2% OF AN AROMATIC PHENYL KETONE, AND AT LEAST 0.5& OF AN AROMATIC PHOTOSENSITIZER SELECTED FROM THE GROUP CONSISTING OF AROMATIC ALDEHYDES AND AROMATIC KETONES DIFFERENT THAN SAID ATOMATIC PHENYL KETONE.
Claim 3
Dependent Claim
47 words
The process of claim 1 wherein the halogenated derivative of naphthalene is selected from the group consisting of: 1-(chloromethyl)-naphthalene; 1,5-di-(chloromethyl)-naphthalene; 2-naphthalene sulfonyl chloride; naphthalene-1,5-disulphonyl chloride; 1-(bromomethyl)-naphthalene; an alpha-chloroalkyl-naphthalene having an alkyl group of 1-6 carbon atoms; and an alpha-bromoalkyl-naphthalene having an alkyl group of 1-6 carbon atoms.
Claim 4
Dependent Claim
111 words
An ultraviolet, photopolymerizable pigmented binder system for use as an opacified film, comprising: a pigmented binder system comprising opacifying pigment and ethylenically unsaturated binder wherein said pigmented binder system contains about 0.05 to 2 weight parts of opacifying pigment per 1 weight part of said ethylenically unsaturated binder; said binder system containing by weight about 0.5% to 3% of a halogenated derivative of naphthalene having at least one halogen attached to the alpha-atom attached to the naphthalene ring, 0.1% to 2% of an aromatic phenyl ketone, and at least 0.5% of an aromatic photosensitizer selected from the group consisting of aromatic aldehydes and aromatic ketones different from said aromatic phenyl ketone.
Claim 5
Dependent Claim
111 words
An ultraviolet, photopolymerizable pigmented binder system for use as an opacified film, comprising: a pigmented binder system comprising opacifying pigment and ethylenically unsaturated binder wherein said pigmented binder system contains about 0.05 to 2 weight parts of opacifying pigment per 1 weight part of said ethylenically unsaturated binder; said binder system containing by weight about 0.5% to 3% of a halogenated derivative of naphthalene having at least one halogen attached to the alpha-atom attached to the naphthalene ring, 0.1% to 2% of an aromatic phenyl ketone, and at least 0.5% of an aromatic photosensitizer selected from the group consisting of aromatic aldehydes and aromatic ketones different from said aromatic phenyl ketone.
Claim 6
Dependent Claim
43 words
The pigmented binder system of claim 3 wherein said halogenated derivative is selected from: 1-(chloromethyl)-naphthalene; 1,5-di-(chloromethyl)-naphthalene; 2-naphthalene sulfonyl chloride; naphthalene-1,5-disulfonyl chloride; 1-(bromomethyl)-naphthalene; an alpha-chloroalkyl-naphthalene having an alkyl group of 1-6 carbon atoms; and an alpha-bromoalkyl-naphthalene having an alkyl group of 1-6 carbon atoms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |