US3870592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminates containing outer plies of continuous filament webs
Assignee: Kimberly Clark Corp
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Filing: 1972-04-27
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Granted: 1975-03-11
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Expires: 1992-04-27
Abstract
Abstract Laminates comprising outer webs of continuous thermoplastic filaments and an inner cellulose wadding web are disclosed. The laminates aesthetically simulate a woven fabric or textile material and are strong, attractive in appearance and absorb and retain fluid. The continuous filament web can be bonded by means of an intermittent pattern of spot bonds.
Inventors
- 👤 Robert J Brock
- 👤 David W Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:05
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/32; D; D04; D04H; D04H5/00; D04H5/04; B32B27/06; B32B27/10; B32B5/00; B32B5/02; B32B5/022; B32B2250/00; B32B2250/03; B32B2323/00; B32B2323/04; B32B2323/10; B32B2367/00; B32B2375/00; B32B2377/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T428/24843; Y10T428/249921; Y10T428/249924; Y10T428/24994; Y10T428/24995; Y10T428/249952; Y10T428/27
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
167 words
An absorbent, substantially opaque nonwoven material having desirable isotropic strength characteristics and simulating in hand and feel a woven cloth or fabric comprising, in combination, a. a web of cellulose wadding having a basis weight of about 0.3 - about 0.7 oz./yd.2, b. disposed on either side of said cellulose wadding, a low basis weight nonwoven web of substantially continuous and randomly deposited, molecularly oriented filaments of a hydrophobic thermoplastic polymer, each of said webs having a basis weight of up to about 0.7 oz./yd.2 and the filaments thereof having a denier of about 0.5 - about 6, and c. patterned areas of adhesive disposed between said webs which penetrate into said cellulose wadding web at spaced open areas in a manner so as to provide delamination resistance in combination with fabric-like flexibility, the placement of said nonwoven webs on either side of said web of cellulose wadding providing a desirable degree of wrinkle recovery and permitting the material to be washed several times without deterioration thereof.
Claim 2
Dependent Claim
167 words
An absorbent, substantially opaque nonwoven material having desirable isotropic strength characteristics and simulating in hand and feel a woven cloth or fabric comprising, in combination, a. a web of cellulose wadding having a basis weight of about 0.3 - about 0.7 oz./yd.2, b. disposed on either side of said cellulose wadding, a low basis weight nonwoven web of substantially continuous and randomly deposited, molecularly oriented filaments of a hydrophobic thermoplastic polymer, each of said webs having a basis weight of up to about 0.7 oz./yd.2 and the filaments thereof having a denier of about 0.5 - about 6, and c. patterned areas of adhesive disposed between said webs which penetrate into said cellulose wadding web at spaced open areas in a manner so as to provide delamination resistance in combination with fabric-like flexibility, the placement of said nonwoven webs on either side of said web of cellulose wadding providing a desirable degree of wrinkle recovery and permitting the material to be washed several times without deterioration thereof.
Claim 3
Dependent Claim
166 words
AN ABSORBENT, SUBSTANTIALLY OPAQUE NONWOVEN MATERIAL HAVING DESIRABLE ISOTROPIC STRENGTH CHARACTERISTICS AND SIMULATING IN HAND AND FEEL A WOVEN CLOTH OR FABRIC COMPRISING, IN COMBINATION, A. A WEB OF CELLULOSE WADDING HAVING A BASIS WEIGHT OF ABOUT 0.3 - ABOUT 0.7 OZ./YD.2, B. DISPOSED ON EITHER SIDE OF SAID CELLULOSE WADDING, A LOW BASIS WEIGHT NONWOVEN WEB OF SUBSTANTIALLY CONTINUOUS AND RANDOLLY DEPOSITED, MOLECULARLY ORIENTED FILAMENTS OF A HYDROPHOBIC THERMOSPLASTIC POLYMER, EACH OF SAID WEBS HAVING A BASIS WEIGHT OF UP TO ABOUT 0.7 OZ./YD.2 AND THE FILAMENTS THEREOF HAVING A DENIER OF ABOUT 0.5 ABOUT 6, AND C. PATTERNED AREAS OF ADHESIVE DISPOSED BETWEEN SAID WEBS WHICH PENETRATE INTO SAID CELLULOSE WADDING WEB AT SPACED OPEN AREAS IN A MANNER SO AS TO PROVIDE DELAMINATION RESISTANCE IN COMBINATION WITH FABRIC-LIKE FLEXIBILITY, THE PLACEMENT OF SAID NONWOVEN WEBS ON EITHER SIDE OF SAID WEB OF CELLULOSE WADDING PROVIDING A DESIRABLE DEGREE OF WRINKLY RECOVERY AND PERMITTING THE MATERIAL TO BE WASHED SEVERAL TIMES WITHOUT DETERIORATION THEREOF.
Claim 4
Dependent Claim
166 words
AN ABSORBENT, SUBSTANTIALLY OPAQUE NONWOVEN MATERIAL HAVING DESIRABLE ISOTROPIC STRENGTH CHARACTERISTICS AND SIMULATING IN HAND AND FEEL A WOVEN CLOTH OR FABRIC COMPRISING, IN COMBINATION, A. A WEB OF CELLULOSE WADDING HAVING A BASIS WEIGHT OF ABOUT 0.3 - ABOUT 0.7 OZ./YD.2, B. DISPOSED ON EITHER SIDE OF SAID CELLULOSE WADDING, A LOW BASIS WEIGHT NONWOVEN WEB OF SUBSTANTIALLY CONTINUOUS AND RANDOLLY DEPOSITED, MOLECULARLY ORIENTED FILAMENTS OF A HYDROPHOBIC THERMOSPLASTIC POLYMER, EACH OF SAID WEBS HAVING A BASIS WEIGHT OF UP TO ABOUT 0.7 OZ./YD.2 AND THE FILAMENTS THEREOF HAVING A DENIER OF ABOUT 0.5 ABOUT 6, AND C. PATTERNED AREAS OF ADHESIVE DISPOSED BETWEEN SAID WEBS WHICH PENETRATE INTO SAID CELLULOSE WADDING WEB AT SPACED OPEN AREAS IN A MANNER SO AS TO PROVIDE DELAMINATION RESISTANCE IN COMBINATION WITH FABRIC-LIKE FLEXIBILITY, THE PLACEMENT OF SAID NONWOVEN WEBS ON EITHER SIDE OF SAID WEB OF CELLULOSE WADDING PROVIDING A DESIRABLE DEGREE OF WRINKLY RECOVERY AND PERMITTING THE MATERIAL TO BE WASHED SEVERAL TIMES WITHOUT DETERIORATION THEREOF.
Claim 5
Dependent Claim
37 words
The material of claim 1 wherein the nonwoven webs have a basis weight of about 0.3 - about 0.7 oz./yd.2, the thermoplastic polymer is polypropylene and the filaments have a denier of about 0.8 - about 2.5.
Claim 6
Dependent Claim
41 words
The material of claim 1 wherein the continuous filament webs are bonded by the application of heat and pressure at intermittent areas occupying about 5 - 50% of the web area and in a density of about 50-3,200 per square inch.
Claim 7
Dependent Claim
37 words
The material of claim 3 wherein the nonwoven webs have a basis weight of about 0.3 - about 0.7 oz./yd.2, the thermoplastic polymer is polypropylene and the filaments have a denier of about 0.8 - about 2.5.
Claim 8
Dependent Claim
29 words
The material of claim 4 wherein the nonwoven webs contain an intermittent pattern of bond areas in a density of about 100-500/inch2 and occupy 8-20% of the web area.
Claim 9
Dependent Claim
174 words
An absorbent, substantially opaque nonwoven material having desirable isotropic strength characteristics and simulating in hand and feel a woven cloth or fabric comprising, in combination, a. a web of cellulose wadding having a basis weight of about 0.3 - about 0.7 oz./yd.2, b. disposed on either side of said cellulose wadding, a low basis weight nonwoven web of substantially continuous and randomly deposited, molecularly oriented filaments of a hydrophobic thermoplastic polymer selected from polyolifins, polyurethanes, polyvinyls, polyamides and polyesters, each of said webs having a basis weight of up to about 0.7 oz./yd.2 and the filaments thereof having a denier of about 0.5 - about 6, and c. spaced areas of adhesive occupying less than about 25% of the area of cellulosic web and penetrating each surface of said cellulosic web and the adjacent nonwoven webs to bond the webs together, the placement of said nonwoven webs on either side of said cellulose wadding web providing a desirable degree of wrinkle recovery and permitting the material to be washed several times without deterioration thereof.
Claim 10
Dependent Claim
174 words
An absorbent, substantially opaque nonwoven material having desirable isotropic strength characteristics and simulating in hand and feel a woven cloth or fabric comprising, in combination, a. a web of cellulose wadding having a basis weight of about 0.3 - about 0.7 oz./yd.2, b. disposed on either side of said cellulose wadding, a low basis weight nonwoven web of substantially continuous and randomly deposited, molecularly oriented filaments of a hydrophobic thermoplastic polymer selected from polyolifins, polyurethanes, polyvinyls, polyamides and polyesters, each of said webs having a basis weight of up to about 0.7 oz./yd.2 and the filaments thereof having a denier of about 0.5 - about 6, and c. spaced areas of adhesive occupying less than about 25% of the area of cellulosic web and penetrating each surface of said cellulosic web and the adjacent nonwoven webs to bond the webs together, the placement of said nonwoven webs on either side of said cellulose wadding web providing a desirable degree of wrinkle recovery and permitting the material to be washed several times without deterioration thereof.
Claim 11
Dependent Claim
174 words
AN ABSORBENT, SUBSTANTIALLY OPAQUE NONWOVEN MATERIAL HAVING DESIRABLE ISOTROPIC STRENGTH CHARACTERISTICS AND SIMULATING IN HAND AND FEEL A WOVEN CLOTH OR FABRIC COMPRISING, IN COMBINATION, A. A WEB OF CELLULOSE WADDING HAVING A BASIS WEIGHT OF ABOUT 0.3 - ABOUT 0.7 OZ./YD.2, B. DISPOSED ON EITHER SIDE OF SAID CELLULOSE WADDING, A LOW BASIS WEIGHT NONWOVEN WEB OF SUBSTANTIALLY CONTINUOUS AND RANDOMLY DEPOSITED, MOLECULARLY ORIENTED FILAMENTS OF A HYDROPHOBIC THERMOPLASTIC POLYMER SELECTED FROM POLYOLIFINS, POLYURETHANES, POLYVINYLS POLYAMIDES AND POLYESTERS, EACH OF SAID WEBS HAVING A BASIS WEIGHT OF UP TO ABOUT 0.7 OZ./YD.2 AND THE FILAMENTS THEREOF HAVING A DENIER OF ABOUT 0.5 - ABOUT 6, AND C. SPACED AREAS OF ADHESIVE OCCUPYING LESS THAN ABOUT 25% OF THE AREA OF CELLULOSIC WEB AND PENETRATING EACH SURFACE OF SAID CELLULOSIC WEB AND THE ADJACENT NONWOVEN WEBS TO BOND THE WEBS TOGETHER, THE PLACEMENT OF SAID NONWOVEN WEBS ON EITHER SIDE OF SAID CELLULOSE WADDING WEB PROVIDING A DESIRABLE DEGREE OF WRINKLE RECOVERY AND PERMITTING THE MATERIAL TO BE WASHED SEVERAL TIMES WITHOUT DETERIORATION THEREOF.
Claim 12
Dependent Claim
174 words
AN ABSORBENT, SUBSTANTIALLY OPAQUE NONWOVEN MATERIAL HAVING DESIRABLE ISOTROPIC STRENGTH CHARACTERISTICS AND SIMULATING IN HAND AND FEEL A WOVEN CLOTH OR FABRIC COMPRISING, IN COMBINATION, A. A WEB OF CELLULOSE WADDING HAVING A BASIS WEIGHT OF ABOUT 0.3 - ABOUT 0.7 OZ./YD.2, B. DISPOSED ON EITHER SIDE OF SAID CELLULOSE WADDING, A LOW BASIS WEIGHT NONWOVEN WEB OF SUBSTANTIALLY CONTINUOUS AND RANDOMLY DEPOSITED, MOLECULARLY ORIENTED FILAMENTS OF A HYDROPHOBIC THERMOPLASTIC POLYMER SELECTED FROM POLYOLIFINS, POLYURETHANES, POLYVINYLS POLYAMIDES AND POLYESTERS, EACH OF SAID WEBS HAVING A BASIS WEIGHT OF UP TO ABOUT 0.7 OZ./YD.2 AND THE FILAMENTS THEREOF HAVING A DENIER OF ABOUT 0.5 - ABOUT 6, AND C. SPACED AREAS OF ADHESIVE OCCUPYING LESS THAN ABOUT 25% OF THE AREA OF CELLULOSIC WEB AND PENETRATING EACH SURFACE OF SAID CELLULOSIC WEB AND THE ADJACENT NONWOVEN WEBS TO BOND THE WEBS TOGETHER, THE PLACEMENT OF SAID NONWOVEN WEBS ON EITHER SIDE OF SAID CELLULOSE WADDING WEB PROVIDING A DESIRABLE DEGREE OF WRINKLE RECOVERY AND PERMITTING THE MATERIAL TO BE WASHED SEVERAL TIMES WITHOUT DETERIORATION THEREOF.
Claim 13
Dependent Claim
37 words
The material of claim 6 wherein the nonwoven webs have a basis weight of about 0.3 - about 0.7 oz./yd.2, the thermoplastic polymer is polypropylene and the filaments have a denier of about 0.8 - about 2.5.
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |