Patent US3887751A successfully refreshed from Google Patents.
US3887751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroconductive sheet material and process of preparation
Assignee: Monsanto Co
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Filing: 1972-05-12
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Granted: 1975-06-03
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Expires: 1992-05-12
Abstract
Abstract This invention relates to a sheet material with electrically conducting properties for use in electrographic printing wherein a water soluble conductive substance comprising at least one member of a class of polymers formed by the reaction of a 1,4dihaloalkene-2 compound and an aliphatic di(tertiary amine) is applied to the sheet material to give a weight ratio in the range of 1:1 to 500:1. This sheet material is then treated further with conventional adjuncts such as film forming resins, pigmented resins, photoconductive compositions, etc.
Inventors
- 👤 Albert H Markhart
- 👤 James O Santer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:06
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/0206; C08G73/0213; C08G73/0226; G; G03; G03G; G03G5/00; G03G5/10; G03G5/105; G03G5/107; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
21 words
AN ELECTROCONDUCTIVE SHEET MATERIAL COMPRISING A BASE SHEET AND AN ELECTROCONDUCTIVE QUATERNARY AMMONIUM RESIN HAVING RECURRING UNITS OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
21 words
AN ELECTROCONDUCTIVE SHEET MATERIAL COMPRISING A BASE SHEET AND AN ELECTROCONDUCTIVE QUATERNARY AMMONIUM RESIN HAVING RECURRING UNITS OF THE GENERAL FORMULA:
Claim 3
Dependent Claim
21 words
An electroconductive sheet material comprising a base sheet and an electroconductive quaternary ammonium resin having recurring units of the general formula:
Claim 4
Dependent Claim
21 words
An electroconductive sheet material comprising a base sheet and an electroconductive quaternary ammonium resin having recurring units of the general formula:
Claim 5
Dependent Claim
47 words
The electroconductive sheet material of claim 1 wherein the coating of electroconductive resin comprises up to 50 weight percent of a poly(vinyl alcohol) which contains between 1 and 40 weight percent of residual vinyl acetate and has a molecular weight in the range of 2000 to 500,000.
Claim 6
Dependent Claim
18 words
The electroconductive sheet material according to claim 1 wherein the base sheet is a paper of cellulose fiber.
Claim 7
Dependent Claim
26 words
The electroconductive sheet material according to claim 1 wherein the weight ratio of base sheet to electroconductive resin is in the range of 1:1 to 500:1.
Claim 8
Dependent Claim
85 words
An electroconductive sheet material comprising a base sheet and an electroconductive water soluble quaternary ammonium resin formed by the substantially equimolar reaction of a 1,4-dihaloalkene-2 and a di(tertiary amine) containing from 0 to 10 parts by weight of poly(tertiary amine) per 100 parts of di(tertiary amine), wherein the 1,4-dihaloalkene-2 is selected from the group consisting of the 1,4-dibromo and 1,4-dichloro substitution products of butene-2, pentene-2, hexene-2, 2-methyl-butene-2, 2-chlorobutene-2 and cyclopentene-2, and wherein the di(tertiary amine) is selected from the group consisting of triethylenediamine and 1,3-bis(dimethylamino)-2-hydroxypropane.
Claim 9
Dependent Claim
85 words
An electroconductive sheet material comprising a base sheet and an electroconductive water soluble quaternary ammonium resin formed by the substantially equimolar reaction of a 1,4-dihaloalkene-2 and a di(tertiary amine) containing from 0 to 10 parts by weight of poly(tertiary amine) per 100 parts of di(tertiary amine), wherein the 1,4-dihaloalkene-2 is selected from the group consisting of the 1,4-dibromo and 1,4-dichloro substitution products of butene-2, pentene-2, hexene-2, 2-methyl-butene-2, 2-chlorobutene-2 and cyclopentene-2, and wherein the di(tertiary amine) is selected from the group consisting of triethylenediamine and 1,3-bis(dimethylamino)-2-hydroxypropane.
Claim 10
Dependent Claim
19 words
The electroconductive sheet material according to claim 5 wherein the 1,4-dihaloalkene-2 is 1,4-dichlorobutene-2 and the di(tertiary amine) is triethylenediamine.
Claim 11
Dependent Claim
19 words
The electroconductive sheet material according to claim 5 wherein the 1,4-dihaloalkene-2 is 1,4-dichlorobutene-2 and the di(tertiary amine) is 1,3-bis(dimethylamino)-2-hydroxypropane.
Claim 12
Dependent Claim
31 words
The electroconductive sheet material according to claim 5 wherein the poly(tertiary amine) is selected from the group consisting of N,N,N'',N'''',N''''-pentamethyl diethylenetriamine, N,N, N'',N'''',N''''-pentamethyl dihexylenetriamine, hexamethylenetetramine, 2,4,6-tris(dimethylaminomethyl)phenol, poly(N-methyl ethylenimine) and poly(N-hydroxyethyl ethylenimine).
Claim 13
Dependent Claim
26 words
The electroconductive sheet material according to claim 5 wherein the weight ratio of base sheet to electroconductive resin is in the range of 1:1 to 500:1.
Claim 14
Dependent Claim
43 words
The electroconductive sheet material according to claim 5 wherein the electroconductive resin is present as a coating on at least one surface of the base sheet in an amount ranging from 0.5 to 15.0 pounds per 3000 square feet of base sheet. 000.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |