US4041193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fanning each set of multi-ply sheets
Assignee: Fujifilm Holdings Corp
•
Filing: 1974-10-31
•
Granted: 1977-08-09
•
Expires: 1994-10-31
Abstract
Abstract A method for fanning multi-ply sheets into units thereof, which comprises applying the adhesive composition to one side of a stack of multi-ply sheets, e.g., pressure-sensitive copying sheet units, and separating each unit of the sheets.
Inventors
- 👤 Takao Hayashi
- 👤 Hiroharu Matsukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:35
CPC Classifications
C; C09; C09J; C09J161/00; B; B41; B41M; B41M5/00; B41M5/124; C09J201/00; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
A method for fanning units comprising multi-ply sheets, which comprises applying an adhesive composition containing a sodium salt or potassium salt of naphthalenesulfonate-formaldehyde condensate to one side of a stack of multi-ply sheets and separating each unit of said sheets, wherein said naphthalenesulfonate-formaldehyde condensate is present in said composition in a proportion of about 5 to 40% by weight.
Claim 2
Independent Claim
59 words
A method for fanning units comprising multi-ply sheets, which comprises applying an adhesive composition containing a sodium salt or potassium salt of naphthalenesulfonate-formaldehyde condensate to one side of a stack of multi-ply sheets and separating each unit of said sheets, wherein said naphthalenesulfonate-formaldehyde condensate is present in said composition in a proportion of about 5 to 40% by weight.
Claim 3
Dependent Claim
27 words
The method of claim 1, wherein said adhesive composition includes additionally at least one of a water-soluble binder and a cationic, anionic or nonionic surface active agent.
Claim 4
Dependent Claim
65 words
The method of claim 1, wherein said naphthalenesulfonate-formaldehyde condensate has the general formula ##STR5## wherein the R's, which may be the same or different, each represents a hydrogen atom or an alkyl group, in which a plurality of the R's can be present on the naphthalene ring; X represents a hydrogen atom, an alkali metal atom or an ammonium group; and n represents an integer.
Claim 5
Dependent Claim
36 words
The method of claim 3, wherein the alkyl group of said R has 1 to 18 carbon atoms; X represents a sodium atom, a potassium atom or an ammonium group; and n represents 1 to 13.
Claim 6
Dependent Claim
37 words
The method of claim 4, wherein said alkyl group for said R has from 1 to 4 carbon atoms; X represents a sodium atom or a potassium atom; and n represents an integer of 1 to 5.
Claim 7
Independent Claim
98 words
A method for fanning units comprising multi-ply sheets, which comprises applying an adhesive composition containing about 5 to 30% by weight on a solids base of naphthalenesulfonate-formaldehyde condensate and about 2 to 20% by weight on a solids base of an emulsion of a high molecular weight material to one side of a stack of multi-ply sheets and separating each unit of said sheets, wherein said emulsion of a high molecular weight material is a styrene-butadiene rubber latex, a butadiene-acrylonitrile rubber latex, a chloroprene rubber latex, a vinyl acetate latex, an acrylic latex, or a vinyl chloride latex.
Claim 8
Independent Claim
98 words
A method for fanning units comprising multi-ply sheets, which comprises applying an adhesive composition containing about 5 to 30% by weight on a solids base of naphthalenesulfonate-formaldehyde condensate and about 2 to 20% by weight on a solids base of an emulsion of a high molecular weight material to one side of a stack of multi-ply sheets and separating each unit of said sheets, wherein said emulsion of a high molecular weight material is a styrene-butadiene rubber latex, a butadiene-acrylonitrile rubber latex, a chloroprene rubber latex, a vinyl acetate latex, an acrylic latex, or a vinyl chloride latex.
Claim 9
Dependent Claim
26 words
The method of claim 6, wherein said adhesive composition includes at least one of a water-soluble binder and a cationic, anionic or nonionic surface active agent.
Claim 10
Dependent Claim
48 words
The method of claim 6, wherein said emulsion of a high molecular weight material contains about 10% to 70 weight % solids, has a viscosity of about 0.5 to 1000 poise and with the high molecular weight material having a particle size of about 0.1 to 5 microns.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |