EP0040977A1
Expired / Lapsed
EP
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Imaging systems with tetra(aliphatic)borate salts
Assignee: 3M Co
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Filing: 1981-05-22
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Granted: —
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Expires: 2001-05-22
Abstract
Abstract Light sensitive imaging systems comprising aromatic tetra(hydrocarbyl)borates are known in the art to be fairly slow acting. An increase in speed for these materials would be essential for their use in commercial fields. It has been found that tetra(aliphatic)borates are considerably faster than their aromatic counterparts.
Inventors
- 👤 Rex J. Dalzell
- 👤 Edward J. Goettert
- 👤 George V.D. Tiers
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 15:13
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/735; G03C7/00; G03C7/02; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/115; Y10S522/00; Y10S522/904
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
20 words
A radiation sensitive element comprising a substrate having on at least one side thereof a radiation sensitive tetra(aliphatic) borate salt.
Claim 2
Dependent Claim
20 words
A radiation sensitive element comprising a substrate having on at least one side thereof a radiation sensitive tetra(aliphatic) borate salt.
Claim 3
Dependent Claim
58 words
The radiation sensitive element of claim 1 wheren said borate has the formula wherein R l , R 2 , R 3 , and R 4 are independently aliphatic groups bonded to the boron from a carbon atoms, and X + is any cation except those that break at least one carbon to boron bond on the borate.
Claim 4
Dependent Claim
14 words
The radiation sensitive element of claim 2 wherein said cation is an organic cation.
Claim 5
Dependent Claim
18 words
The radiation sensitive element of claim 3 wherein a dye is in reactive association with said borate salt.
Claim 6
Dependent Claim
14 words
The radiation sensitive element of claim 4 wherein said dye is a cationic dye.
Claim 7
Dependent Claim
19 words
The radiation sensitive element of claims 4 or 5 wherein said borate and dye are in a binder layer.
Claim 8
Dependent Claim
16 words
The radiation sensitive element of claim 6 wherein said binder layer comprises an organic polymeric binder.
Claim 9
Dependent Claim
15 words
The radiation sensitive element of claim 3 wherein said cation is a quaternary ammonium cation.
Claim 10
Dependent Claim
26 words
The radiation sensitive element of claim 7 wherein said borate is a tetra(alkyl) borate with the alkyl groups independently having from 1 to 20 carbon atoms.
Claim 11
Dependent Claim
18 words
The radiation sensitive element of claim 9 wherein said alkyl groups have from 1 to 8 carbon atoms.
Claim 12
Dependent Claim
16 words
The radiation sensitive element of claim 10 wherein said alkyl groups are each ethyl or butyl.
Claim 13
Dependent Claim
37 words
The radiation sensitive element of claims 4, 5, or 6 wherein R l , R 2 , R 3 , and R 4 are selected from allyl and alkyl groups having from 1 to 20 carbon atoms.
Claim 14
Dependent Claim
28 words
The radiation sensitive element of claim 12 wherein R l , R 2 , R 3 and R 4 are alkyl having from 1 to 20 carbon atoms.
Claim 15
Dependent Claim
28 words
The radiation sensitive element of claim 6 wherein said binder is selected from the class consisting of polycarbonates, polystyrenes, polystyrene/acryloni- triles, polyvinyl acetate, polyacrylates, polymethacrylates, and polyvinyl acetals.
Claim 16
Dependent Claim
31 words
The radiation sensitive element of claims 4, 6, 9, 10, 13 or 14 wherein said dye is selected from the class consisting of methines, cyanines, carbocyanines, azomethines, styryls, xanthenes, or azines.
Claim 17
Dependent Claim
19 words
The element of claim 4 wherein said dye is photobleachable because of its reactive association with said borate salt.
References Cited (Backward Citations)
US3121012A
Cited
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