Patent US3720562A successfully refreshed from Google Patents.
US3720562A
Expired / Lapsed
US
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A method of bonding non woven fabrics
Assignee: Johnson and Johnson
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Filing: 1970-08-21
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Granted: 1973-03-13
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Expires: 1990-08-21
Abstract
Abstract Bonded fibrous nonwoven textile fabrics having excellent strength and textile-like softness, drape and hand which are intermittently bonded with synthetic resins in predetermined print patterns of binder areas having a relatively high, uniform concentration of from about 50 percent to about 120 percent by weight of resin binder in the binder areas, based on the weight of the fibers therein, said binder areas having very sharply defined borders or edges with a minimum of binder feathering thereat whereby the optical density of the bonded fibrous nonwoven textile fabric very sharply increases from substantially zero to a maximum of at least from about 0.6 to about 1.0 or greater in a distance of less than about 1 mm. (0.04 inch), and methods of depositing such synthetic resins from colloidal aqueous dispersions thereof into wet fibrous webs to form the bonded fibrous nonwoven textile fabrics, comprising the use of (1) metal complex coordination compounds and (2) synthetic resins and/or surfactants, at least one of which contains a specific coordinating ligand capable of being affected by ions or said metals to control the total migration of the resin binder during such deposition.
Inventors
- 👤 A Drelich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:42
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/20; C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/66; D06M11/17; D06M11/28; D06M11/51; D06M11/55; D06M11/56; D06M11/58; D06M11/64; D06M11/65; D06M15/00; D06M15/19; D06M15/21; D06M15/227; D06M15/233; D06M15/244; D06M15/263; D06M15/267; D06M15/327; D06M15/333; D06M23/00; D06M23/16; D06Q; D06Q1/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
144 words
A method of applying a synthetic resin binder to a fibrous web of overlapping, intersecting fibers and controlling its migration thereon which comprises: applying to a fibrous web of overlapping, intersecting fibers a stable, alkaline, colloidal aqueous dispersion comprising: (1) a synthetic resin; (2) a surfactant, at least one of said resin and surfactant components having a hydroxy-containing coordinating ligand; and (3) a metal complex coordination compound, said metal being selected from the group consisting of zirconium, chromium, nickel, cobalt, cadmium, zinc, vanadium, copper and aluminum, said dispersion being applied to said fibrous web in a predetermined, intermittent print pattern oF spaced areas; and substantially immediately acidifying said dispersion whereby a metal cation is released from said metal complex coordination compound to substantially immediately destroy the stability of said dispersion and coagulate said resin in said spaced areas with a minimum of migration therefrom.
Claim 2
Independent Claim
144 words
A method of applying a synthetic resin binder to a fibrous web of overlapping, intersecting fibers and controlling its migration thereon which comprises: applying to a fibrous web of overlapping, intersecting fibers a stable, alkaline, colloidal aqueous dispersion comprising: (1) a synthetic resin; (2) a surfactant, at least one of said resin and surfactant components having a hydroxy-containing coordinating ligand; and (3) a metal complex coordination compound, said metal being selected from the group consisting of zirconium, chromium, nickel, cobalt, cadmium, zinc, vanadium, copper and aluminum, said dispersion being applied to said fibrous web in a predetermined, intermittent print pattern oF spaced areas; and substantially immediately acidifying said dispersion whereby a metal cation is released from said metal complex coordination compound to substantially immediately destroy the stability of said dispersion and coagulate said resin in said spaced areas with a minimum of migration therefrom.
Claim 3
Dependent Claim
17 words
A method as defined in claim 1, wherein the metal complex coordination compound is sodium tetrahydroxo zincate.
Claim 4
Dependent Claim
17 words
A method as defined in claim 1, wherein the metal complex coordination compound is sodium tetrahydroxo aluminate.
Claim 5
Dependent Claim
17 words
A method as defined in claim 1, wherein the metal complex coordination compound is ammonium zirconyl carbonate.
Claim 6
Dependent Claim
70 words
A method as defined in claim 1, wherein said aqueous dispersion comprises: from about 0.1 percent to about 60 percent by weight of said synthetic resin; from about 0.01 percent to about 2 percent by weight, based on the weight of said resin, of said surfactant; and from about 0.1 percent to about 3 percent by weight, based on the weight of said resin, of said metal complex coordination compound.
Claim 7
Dependent Claim
16 words
A method as defined in claim 1 wherein the synthetic resin has said hydroxy-containing coordinating ligand.
Claim 8
Dependent Claim
15 words
A method as defined in claim 1 wherein the surfactant has said hydroxy-containing coordinating ligand.
Claim 9
Dependent Claim
17 words
A method as defined in claim 1 wherein the metal complex coordination compound is zinc tetrammine sulfate.
Claim 10
Dependent Claim
17 words
A method as defined in claim 1 wherein the metal complex coordination compound is zinc tetrammine carbonate.
Claim 11
Dependent Claim
14 words
A method as defined in claim 1 wherein the surfactant is an anionic surfactant.
Claim 12
Dependent Claim
14 words
A method as defined in claim 1 wherein the surfactant is a non-ionic surfactant.
Claim 13
Independent Claim
109 words
A method of applying a stable synthetic resin composition to porous materials and controlling the migration thereon which comprises: applying to porous materials a stable, alkaline, colloidal aqueous dispersion comprising: (1) a synthetic resin; (2) a surfactant; at least one of said resin and surfactant components having a hydroxy-containing coordinating ligand; and (3) a metal complex coordination compound; said metal being selected from the group consisting of zirconium, chromium, nickel, cobalt, cadmium, zinc, vanadium, titanium, copper, and aluminum and substantially immediately acidifying said dispersion to substantially immediately destroy the stability of said dispersion and coagulate said resin whereby the migration of said resin on said porous materials is controlled.
Claim 14
Independent Claim
109 words
A method of applying a stable synthetic resin composition to porous materials and controlling the migration thereon which comprises: applying to porous materials a stable, alkaline, colloidal aqueous dispersion comprising: (1) a synthetic resin; (2) a surfactant; at least one of said resin and surfactant components having a hydroxy-containing coordinating ligand; and (3) a metal complex coordination compound; said metal being selected from the group consisting of zirconium, chromium, nickel, cobalt, cadmium, zinc, vanadium, titanium, copper, and aluminum and substantially immediately acidifying said dispersion to substantially immediately destroy the stability of said dispersion and coagulate said resin whereby the migration of said resin on said porous materials is controlled.
Claim 15
Dependent Claim
14 words
A method as defined in claim 12 wherein the surfactant is an anionic surfactant.
Claim 16
Dependent Claim
14 words
A method as defined in claim 12 wherein the surfactant is a non-ionic surfactant.
References Cited (Backward Citations)
US3001957A
Cited
US3085076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |