US3874964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated fabric and method
Assignee: WR Grace and Co
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Filing: 1973-04-23
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Granted: 1975-04-01
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Expires: 1993-04-23
Abstract
Abstract The invention disclosed is for a laminated fabric and particularly carpet fabric, wherein a resinous foam core is sandwiched between and bonded to two outer surface layers. The resinous foam core consists essentially of a hydrophilic crosslinked polyurethane component prepared by reacting an isocyanate capped polyoxyethylene polyol reactant with large amounts of an aqueous reactant. After the sandwich structure of fabric-resin-fabric is formed, the resin is foamed and cured following which it is split into two substantially identical foam backed laminates. Alternately, the two backings may be different if desired. Desirably, the exposed foam surface of the laminate is texture treated prior to use. The resultant fabric laminate may be characterized with a broad spectrum of improved properties including improved comfort, moisture control, ease of processing and when containing selective additives, with fire retardancy, sound deadening or like characteristics.
Inventors
- 👤 Joseph A Cogliano
- 👤 Louis L Wood
- 👤 Kurt C Frisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:13
CPC Classifications
A; A01; A01G; A01G24/00; A01G24/40; A01G24/48; B; B32; B32B; B32B27/00; B32B27/12; A01C; A01C1/00; A01C1/04; A01C1/044; A01C1/046; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/326; B29C44/34; B29C44/56; B29C44/5627; B29C44/5654; B32B5/00; B32B5/18; B32B5/20; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/4833; C08J; C08J9/00; C08J9/02; B32B2307/00; B32B2307/70; B32B2307/728; B32B2471/00; B32B2471/02; C08G2110/00; C08G2110/0083; C08G2310/00; C08J2375/00; C08J2375/04; C08J2375/08; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10S521/00; Y10S521/905; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1059; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
108 words
A METHOD FOR PREPARING A LAMINATED FABRIC WHICH COMPRISES, FOAMING A RESIN REACTANT AND AN AQUEOUS REACTANT COMPONENT ON ONE SURFACE LAYER OF FABRIC, LAMINATING A SECOND SURFACE LAYER OF FABRIC ONTO THE FOAMING RESIN REACTANT, SAID FOAM HAVING CROSSLINKING HYDROPHILIC RESIN REACTANT, SAID FOAM HAVING CROSSLINKING HYDROPHILIC CHARACTERISTICS WITH THREEDIMENSIONAL NETWORK, AND CONSISTING ESSENTIALLY OF A FIRST COMPONENT COMPRISING ISOCYANATE CAPPED POLYOXYETHYLENE POLYOL HAVING A REACTION FUNCTIONALITY GREATER THAN TWO AND A SECOND COMPONENT COMPRISING AQUEOUS REACTANT, THE RATIO OF MOLES H2O/MOLES NCO GROUPS IN SAID SECOND AND FIRST COMPONENTS RESPECTIVELY BEING ABOUT 6.5 TO ABOUT 390, SPLITTING THE FOAM LAYER, AND RECOVERING TWO FOAM BACKED LAMINATES.
Claim 2
Independent Claim
108 words
A METHOD FOR PREPARING A LAMINATED FABRIC WHICH COMPRISES, FOAMING A RESIN REACTANT AND AN AQUEOUS REACTANT COMPONENT ON ONE SURFACE LAYER OF FABRIC, LAMINATING A SECOND SURFACE LAYER OF FABRIC ONTO THE FOAMING RESIN REACTANT, SAID FOAM HAVING CROSSLINKING HYDROPHILIC RESIN REACTANT, SAID FOAM HAVING CROSSLINKING HYDROPHILIC CHARACTERISTICS WITH THREEDIMENSIONAL NETWORK, AND CONSISTING ESSENTIALLY OF A FIRST COMPONENT COMPRISING ISOCYANATE CAPPED POLYOXYETHYLENE POLYOL HAVING A REACTION FUNCTIONALITY GREATER THAN TWO AND A SECOND COMPONENT COMPRISING AQUEOUS REACTANT, THE RATIO OF MOLES H2O/MOLES NCO GROUPS IN SAID SECOND AND FIRST COMPONENTS RESPECTIVELY BEING ABOUT 6.5 TO ABOUT 390, SPLITTING THE FOAM LAYER, AND RECOVERING TWO FOAM BACKED LAMINATES.
Claim 3
Dependent Claim
58 words
The method of claim 1 wherein the capped polyoxyethylene polyol is present in the first component in an amount from about 3% by weight up to 100% by weight, and wherEin a capped polyoxyethylene polyol having a terminal member with an isocyanate functionality of two is present in an amount from 0% up to about 97% by weight.
Claim 4
Dependent Claim
37 words
The method of claim 1 wherein the polyoxyethylene polyol moiety of the isocyanate capped member has a weight average molecular weight of about 200 to about 20,000, and a hydroxyl functionality of about 2 to about 8.
Claim 5
Dependent Claim
17 words
The method of claim 3 wherein the weight average molecular weight is about 600 to about 6,000.
Claim 6
Dependent Claim
19 words
The method of claim 1 wherein the fabric is selected from the group consisting of paper, plastic and cloth.
Claim 7
Dependent Claim
10 words
The method of claim 1 wherein the fabric is carpet.
Claim 8
Dependent Claim
17 words
The method of claim 1 wherein the split foam surface is texture treated under heat and pressure.
Claim 9
Dependent Claim
9 words
The product prepared by the method of claim 1.
Claim 10
Dependent Claim
28 words
The method of claim 7 wherein the pressure is about 0.1 to about 20 tons per square foot and the roll temperature is about 110*C. to about 250*C.
Claim 11
Dependent Claim
28 words
The method of claim 9 wherein the pressure is about 0.5 to about 15 tons per square foot and the roll temperature is about 150*C. to about 200*C.
Claim 12
Independent Claim
110 words
A method for preparing a laminated fabric which comprises, foaming a resin reactant and an aqueous reactant component on one surface layer of fabric, laminating a second surface layer of fabric onto the foaming resin reactant, said foam having crosslinking hydrophilic resin reactant, said foam having crosslinking hydrophilic characteristics with three-dimensional network, and a first component comprising isocyanate capped polyoxyethylene polyol having a reaction functionality equal to about two, a second component comprising aqueous reactant, and a third component comprising a crosslinking agent having a reaction functionality greater than two, the ratio of moles H2O/moles NCO groups being about 6.5 to about 390 in said second and first components respectively.
Claim 13
Independent Claim
110 words
A method for preparing a laminated fabric which comprises, foaming a resin reactant and an aqueous reactant component on one surface layer of fabric, laminating a second surface layer of fabric onto the foaming resin reactant, said foam having crosslinking hydrophilic resin reactant, said foam having crosslinking hydrophilic characteristics with three-dimensional network, and a first component comprising isocyanate capped polyoxyethylene polyol having a reaction functionality equal to about two, a second component comprising aqueous reactant, and a third component comprising a crosslinking agent having a reaction functionality greater than two, the ratio of moles H2O/moles NCO groups being about 6.5 to about 390 in said second and first components respectively.
Claim 14
Dependent Claim
16 words
The method of claim 11 wherein the crosslinking agent of the third component is a polyol.
Claim 15
Dependent Claim
16 words
The method of claim 11 wherein the crosslinking agent of the third component is a polyamine.
Claim 16
Dependent Claim
16 words
The method of claim 11 wherein the crosslinking agent of the third component is a polythiol.
Claim 17
Dependent Claim
16 words
The method of claim 11 wherein the crosslinking agent of the third component is a polyisocyanate.
Claim 18
Dependent Claim
10 words
The method of claim 11 wherein the fabric is biodegradable.
Claim 19
Dependent Claim
20 words
The method of claim 11 wherein the fabric is selected from the group consisting of paper, plastic cloth and leather.
Claim 20
Dependent Claim
10 words
The method of claim 11 wherein the fabric is carpet.
Claim 21
Dependent Claim
17 words
The method of claim 11 wherein the split foam surface is texture treated under heat and pressure.
Claim 22
Dependent Claim
9 words
The product prepared by the method of claim 11.
Claim 23
Dependent Claim
28 words
The method of claim 20 wherein the pressure is about 0.1 to about 20 tons per square foot and the roll temperature is abouot 110*C. to about 250*C.
Claim 24
Dependent Claim
28 words
The method of claim 21 wherein the pressure is about 0.5 to about 15 tons per square foot and the roll temperature is about 150*C. to about 200*C.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |