Patent US4276339A successfully refreshed from Google Patents.
US4276339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated foam-creped paper product and method of production thereof
Assignee: Marcal Paper Mills LLC
•
Filing: 1979-12-03
•
Granted: 1981-06-30
•
Expires: 1999-12-03
Abstract
Abstract A laminated foam-creped paper product and method of production thereof are disclosed. The laminated paper product exhibits increased wet strength and bulk and is highly absorbent, while also possessing cloth-like tactile properties. The foam layer is derived from an aqueous solution or dispersion of a film-forming material, and is caused to set soon after formation on the creped paper layer to prevent release of the crepe while minimizing penetration of the foam into the creped paper.
Inventors
- 👤 F. Raymond Stoveken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:00
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/002; B32B29/007; A; A47; A47L; A47L13/00; A47L13/10; A47L13/16; B32B27/00; B32B27/06; B32B27/10; B32B29/08; B32B37/00; B32B37/0038; B32B5/00; B32B5/18; B32B5/20; D; D21; D21H; D21H19/00; D21H19/72; D21H19/74; D21H27/00; D21H27/30; D21H27/40; B32B2305/00; B32B2305/02; B32B2305/022; B32B2317/00; B32B2317/12; D21H21/00; D21H21/50; D21H21/56; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
121 words
A method for the production of a laminated foam-creped paper product which exhibits improved wet strength and bulk, and is highly absorbent comprising: forming an unset and ungelled foamed film of an aqueous dispersion or solution of a film-forming material on at least one surface of creped paper; and causing said foamed film to set or gel such that the amount of moisture absorbed by the paper from the film prior to the setting or gelling of the film is insufficient to cause the crepe in the paper to be released whereupon a laminate is formed having a set or gelled foamed film having a thickness of from about 1 to about 125 mils which is bonded to said creped paper.
Claim 2
Independent Claim
121 words
A method for the production of a laminated foam-creped paper product which exhibits improved wet strength and bulk, and is highly absorbent comprising: forming an unset and ungelled foamed film of an aqueous dispersion or solution of a film-forming material on at least one surface of creped paper; and causing said foamed film to set or gel such that the amount of moisture absorbed by the paper from the film prior to the setting or gelling of the film is insufficient to cause the crepe in the paper to be released whereupon a laminate is formed having a set or gelled foamed film having a thickness of from about 1 to about 125 mils which is bonded to said creped paper.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said creped paper comprises creped tissue paper.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said creped paper comprises towel weight creped paper.
Claim 5
Dependent Claim
47 words
The method of claim 1 wherein said foamed film is caused to set or gel substantially immediately upon formation by preheating said paper prior to the forming of a film thereon so that the film will begin to set or gel as it contacts the heated paper.
Claim 6
Dependent Claim
27 words
The method of claim 1 wherein said foamed film is caused to set or gel by heating said laminate subsequent to the formation of the film thereon.
Claim 7
Dependent Claim
37 words
The method of claim 1 wherein said foamed film is formed on at least one surface of said creped paper by foaming said aqueous dispersion or solution and applying the foamed dispersion or solution to the paper.
Claim 8
Dependent Claim
38 words
The method of claim 1 wherein said film is formed on at least one surface of said creped paper by applying said unset and ungelled dispersion or solution to the paper and thereafter foaming the dispersion or solution.
Claim 9
Independent Claim
108 words
A method for the production of a laminated creped paper product which exhibits improved wet strength and bulk, and is highly absorbent comprising: forming an unset and ungelled foamed film of an aqueous dispersion or solution of a film-forming material between opposing surfaces of two layers of creped paper; and causing said foamed film to set or gel such that the amount of moisture absorbed by the paper prior to the setting or gelling of the film is insufficient to cause the crepe in the paper to be released whereupon a laminate is formed having a set or gelled foamed film which bonds said layers of paper together.
Claim 10
Independent Claim
108 words
A method for the production of a laminated creped paper product which exhibits improved wet strength and bulk, and is highly absorbent comprising: forming an unset and ungelled foamed film of an aqueous dispersion or solution of a film-forming material between opposing surfaces of two layers of creped paper; and causing said foamed film to set or gel such that the amount of moisture absorbed by the paper prior to the setting or gelling of the film is insufficient to cause the crepe in the paper to be released whereupon a laminate is formed having a set or gelled foamed film which bonds said layers of paper together.
Claim 11
Dependent Claim
15 words
The method of claim 8 wherein said layers of creped paper comprise creped tissue paper.
Claim 12
Dependent Claim
16 words
The method of claim 8 wherein said layers of creped paper comprise towel weight creped paper.
Claim 13
Dependent Claim
46 words
The method of claim 8 wherein said foamed film is caused to set substantially immediately upon formation by preheating said creped paper prior to the forming of the film thereon so that the film will begin to set or gel as it contacts the heated paper.
Claim 14
Dependent Claim
25 words
The method of claim 8 wherein said foamed film is caused to set by heating said laminate subsequent to the formation of the film thereon.
Claim 15
Dependent Claim
38 words
The method of claim 8 wherein said foamed film is formed between opposing surfaces of two layers of creped paper by foaming said aqueous dispersion or solution and applying the foamed dispersion or solution between said opposing surfaces.
Claim 16
Dependent Claim
39 words
The method of claim 8 wherein the film is formed between opposing surfaces of two layers of creped paper by applying said unset and ungelled dispersion or solution between said opposing surfaces and thereafter foaming the dispersion or solution.
Claim 17
Dependent Claim
12 words
A laminated paper product produced according to the method of claim 1.
Claim 18
Dependent Claim
12 words
A laminated paper product produced according to the method of claim 8.
Claim 19
Dependent Claim
23 words
The method of claim 1 wherein the thickness of the set or gelled foam film ranges from about 10 to about 50 mils.
Claim 20
Dependent Claim
23 words
The method of claim 8 wherein the thickness of the set or gelled foam film ranges from about 1 to about 125 mils.
Claim 21
Dependent Claim
22 words
The method of claim 18 wherein the thickness of the set or gelled foam film ranges from 10 to about 50 mils.
References Cited (Backward Citations)
CA659652A
Cited
US1265132A
Cited
US2853411A
Cited
US3062698A
Cited
US3205120A
Cited
US3285800A
Cited
US3511788A
Cited
US3365532A
Cited
US3506533A
Cited
US3424643A
Cited
US3530030A
Cited
US3600262A
Cited
USRE27820E
Cited
US3607341A
Cited
US3600265A
Cited
US3677858A
Cited
US3687797A
Cited
US3813262A
Cited
DE2137704A1
Cited
US3822176A
Cited
US3895154A
Cited
US3862879A
Cited
US4000028A
Cited
US4018647A
Cited
US3925127A
Cited
US4069366A
Cited
US4075382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |