US4101690A
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US
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Desensitizing composition
Assignee: Fujifilm Holdings Corp
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Filing: 1974-11-26
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Granted: 1978-07-18
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Expires: 1994-11-26
Abstract
Abstract A desensitizing composition for a color developer capable of coloring a substantially colorless color former, which desensitizing composition contains a compound represented by the following general formula (I) ##STR1## wherein R has from 2 to 20 carbon atoms and represents an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a ##STR2## group; m is 0 or an integer of 1 to 3; n is an integer of 2 to 6; the sum of a, b and c is an integer of 3 to 100, the sum of a, b, c and d is an integer of 4 to 100; the sum of p, q and r is an integer of 3 to 100; and the sum of p, q, r and s is an integer of 4 to 100.
Inventors
- 👤 Akio Miyamoto
- 👤 Hiroharu Matsukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/128; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
174 words
In a desensitizing composition for a color developer capable of coloring a substantially colorless color former including a natural or synthetic high molecular weight compound and a pigment, the improvement which comprises said composition containing a compound obtained by reacting an amine with propylene oxide and ethylene oxide represented by the following general formula (I) ##STR9## wherein R has 2 to 20 carbon atoms and represents an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a ##STR10## group; m is 0 or an integer of 1 to 3; n is an integer of 2 to 6; the sum of a, b and c is an integer of 3 to 100; the sum of a, b, c and d is an integer of 4 to 100; the sum of p, q and r is an integer of 3 to 100; the sum of p, q, r and s is an integer of 4 to 100 and the molar ratio of propylene oxide moieties to ethylene oxide moities is 0.2 to 20.
Claim 2
Dependent Claim
174 words
In a desensitizing composition for a color developer capable of coloring a substantially colorless color former including a natural or synthetic high molecular weight compound and a pigment, the improvement which comprises said composition containing a compound obtained by reacting an amine with propylene oxide and ethylene oxide represented by the following general formula (I) ##STR9## wherein R has 2 to 20 carbon atoms and represents an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a ##STR10## group; m is 0 or an integer of 1 to 3; n is an integer of 2 to 6; the sum of a, b and c is an integer of 3 to 100; the sum of a, b, c and d is an integer of 4 to 100; the sum of p, q and r is an integer of 3 to 100; the sum of p, q, r and s is an integer of 4 to 100 and the molar ratio of propylene oxide moieties to ethylene oxide moities is 0.2 to 20.
Claim 3
Dependent Claim
82 words
The desensitizing composition of claim 1, wherein the alkyl group for said R is a dodecyl group, a tetradecyl group, a hexadecyl group, or an octadecyl group; the alkenyl group for said R is a dodecenyl group, a tetradecenyl group, a hexadecenyl group or an octadecenyl group; the aryl group for said R is a phenyl group, a tolyl group, a naphthyl group or an α-methylnaphthyl group; and the aralkyl group for said R is a benzyl group or a phenethyl group.
Claim 4
Dependent Claim
56 words
The desensitizing composition of claim 1, wherein the sum of a, b, c and d ranges from 4 to 70, the sum of p, q, r and s ranges from 4 to 60, the ratio of a +b +c +d to p +q +r +s is 1:5 to 20:1 and wherein n is 2 or 3.
Claim 5
Dependent Claim
31 words
The desensitizing composition of claim 1, wherein said compound represented by the general formula (I) is present in said composition in an amount ranging from about 5 to 60% by weight.
Claim 6
Dependent Claim
15 words
The desensitizing composition of claim 1, wherein said other desensitizing agent is a polyoxyethylene-alkyl amine.
Claim 7
Dependent Claim
12 words
The desensitizing composition of claim 1, wherein said composition is a solution.
Claim 8
Dependent Claim
13 words
The desensitizing composition of claim 1 wherein said composition is an aqueous dispersion.
Claim 9
Dependent Claim
12 words
The desensitizing composition of claim 1, wherein said composition is a paste.
Claim 10
Dependent Claim
12 words
The desensitizing composition of claim 1 wherein said composition is a solid.
Claim 11
Independent Claim
164 words
A method for desensitizing a color developer capable of coloring a substantially colorless color former comprising contacting a color developer with a composition containing a compound obtained by reacting an amine with propylene oxide and ethylene oxide represented by the following general formula (I) ##STR11## wherein R has 2 to 20 carbon atoms and represents an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a ##STR12## group; m is 0 or an integer of 1 to 3; n is an integer of 2 to 6; the sum of a, b and c is an integer of 3 to 100; the sum of a, b, c and d is an integer of 4 to 100; the sum of p, q and r is an integer of 3 to 100; and the sum of p, q, r and s is an integer of 4 to 100 and the molar ratio or propylene oxide moieties to ethylene oxide moieties is 0.2 to 20.
Claim 12
Independent Claim
164 words
A method for desensitizing a color developer capable of coloring a substantially colorless color former comprising contacting a color developer with a composition containing a compound obtained by reacting an amine with propylene oxide and ethylene oxide represented by the following general formula (I) ##STR11## wherein R has 2 to 20 carbon atoms and represents an alkyl group, an alkenyl group, an aryl group, an aralkyl group or a ##STR12## group; m is 0 or an integer of 1 to 3; n is an integer of 2 to 6; the sum of a, b and c is an integer of 3 to 100; the sum of a, b, c and d is an integer of 4 to 100; the sum of p, q and r is an integer of 3 to 100; and the sum of p, q, r and s is an integer of 4 to 100 and the molar ratio or propylene oxide moieties to ethylene oxide moieties is 0.2 to 20.
Claim 13
Dependent Claim
34 words
The method of claim 10, wherein said color developer is coated on a support as a layer, and the contacting of said desensitizing composition comprises coating said desensitizing composition on said color developer layer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |