US4007310A
Expired / Lapsed
US
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Method of desensitization using desensitizing composition
Assignee: Fujifilm Holdings Corp
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Filing: 1975-03-21
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Granted: 1977-02-08
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Expires: 1995-03-21
Abstract
Abstract A method of desensitizing comprising contacting a color developer capable of forming a color upon contact with a color former with a desensitizing composition comprising the reaction product of (a) an alkylsiloxane, an alkylsilmethylene or an alkylsilane, and (b) an alkylene oxide or an alkylene imine (wherein the alkylene imine may be a tertiary amine).
Inventors
- 👤 Akio Miyamoto
- 👤 Hiroharu Matsukawa
- 👤 Nobuo Yamamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:06
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; Y10T428/31504; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
111 words
A method for desensitizing a color developer capable of forming a color upon contact with a color former comprising contacting the color developer with a desensitizing composition which includes as a desensitizing agent the reaction product of (a) an alkylsiloxane, an alkylsilmethylene or an alkylsilane, and (b) an alkylene oxide or an alkylene imine, wherein the alkylene imine may be tertiary amine, said desensitizing agent having a Si--O--Si bond, a Si--C--Si bond or a Si--Si bond in the molecule and containing an alkyleneoxy group or an alkylemeimino group in the molecule, and wherein said desensitizing agent is employed in amounts of about 1 to 60% by weight of said desensitizing composition.
Claim 2
Independent Claim
111 words
A method for desensitizing a color developer capable of forming a color upon contact with a color former comprising contacting the color developer with a desensitizing composition which includes as a desensitizing agent the reaction product of (a) an alkylsiloxane, an alkylsilmethylene or an alkylsilane, and (b) an alkylene oxide or an alkylene imine, wherein the alkylene imine may be tertiary amine, said desensitizing agent having a Si--O--Si bond, a Si--C--Si bond or a Si--Si bond in the molecule and containing an alkyleneoxy group or an alkylemeimino group in the molecule, and wherein said desensitizing agent is employed in amounts of about 1 to 60% by weight of said desensitizing composition.
Claim 3
Dependent Claim
23 words
The method of claim 1, wherein said reaction product is a reaction product of an alkylsiloxane or an alkylsilmethylene and an alkylene oxide.
Claim 4
Dependent Claim
166 words
The method of claim 2, wherein said reaction product has the general formula ##STR11## wherein Y represents ##STR12## Z represents ##STR13## Et represents --O--CH 2 CH 2 --; Pr represents ##STR14## R 1 , R 2 , R 3 , R 4 and R 5 each represents a hydrogen atom, a hydroxyl group, an alkoxy group, an alkyl group, ##STR15## X represents --O-- or --CH 2 --; l is an integer of 1 to 50; m is an integer of 1 to 6; n is an integer of 1 to 50; a is 0 or 1; b 1 through b 4 each represents 0 or 1; P 1 through P 5 each represents 0 or an integer of 1 to 15; q 1 through q 5 each represents 0 or an integer of 1 to 50; and t 1 through t 4 each represents 0 or an integer of 1 to 5 and the positions for (Pr) and (Et) in the above general formula are interchangeable.
Claim 5
Dependent Claim
17 words
The method of claim 3, wherein said reaction product is selected from the group consisting of ##STR16##
Claim 6
Dependent Claim
43 words
The method of claim 1, wherein said desensitizing composition further includes a natural or synthetic high molecular weight compound, an inorganic material, a vegetable oil, an organic solvent, a wax, an anti-off set agent or a desensitizing agent other than said reaction product.
Claim 7
Independent Claim
116 words
A method for desensitizing a color developer layer coated on a support for use in color formation on contact with a color former comprising applying to said color developer layer a desensitizing composition which includes as a desensitizing agent the reaction product of (a) an alkylsiloxane, an alkylsilmethylene or an alkylsilane, and (b) an alkylene oxide or an alkylene imine, wherein the alkylene imine may be tertiary amine, said desensitizing agent having a Si--O--Si bond, a Si--C--Si bond or a Si--Si bond in the molecule and containing an alkylenoxy group or an alkyleneimino group in the molecule, and said desensitizing agent being employed in amounts of about 1 to 60% by weight of said desensitizing composition.
Claim 8
Independent Claim
116 words
A method for desensitizing a color developer layer coated on a support for use in color formation on contact with a color former comprising applying to said color developer layer a desensitizing composition which includes as a desensitizing agent the reaction product of (a) an alkylsiloxane, an alkylsilmethylene or an alkylsilane, and (b) an alkylene oxide or an alkylene imine, wherein the alkylene imine may be tertiary amine, said desensitizing agent having a Si--O--Si bond, a Si--C--Si bond or a Si--Si bond in the molecule and containing an alkylenoxy group or an alkyleneimino group in the molecule, and said desensitizing agent being employed in amounts of about 1 to 60% by weight of said desensitizing composition.
Claim 9
Dependent Claim
14 words
The method of claim 1, wherein said desensitizing composition is employed in desensitizing amounts.
Claim 10
Dependent Claim
25 words
The method of claim 1, wherein said desensitizing composition is employed in amounts of about 0.8 to 8.0 g/m 2 based on the desensitizing agent.
Claim 11
Dependent Claim
14 words
The method of claim 6, wherein said desensitizing composition is employed in desensitizing amounts.
References Cited (Backward Citations)
US3299112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |