US4631235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding method employing composition for improved adhesion of vinylidene chloride latex to ionomer films
Assignee: Rohm and Haas Co
•
Filing: 1985-02-25
•
Granted: 1986-12-23
•
Expires: 2005-02-25
Abstract
Abstract A method for laminating a substrate to an ionomer carboxylate-containing film by applying to the substrate as a coating an adhesive composition comprising an aqueous dispersion of a film-forming vinylidene chloride copolymer wherein the vinylidene chloride copolymer includes on a comonomer weight basis: (a) from about 45 to about 90 percent vinylidene chloride, (b) from about 5 to about 25 percent of a polar comonomer having one or more hydroxyl groups, and (c) a cross-linking agent dissolved in the continuous aqueous phase of the vinylidene chloride copolymer and forcefully engaging said ionomer film with said coating at a temperature sufficient to cause said ionomer film to adhere to said coated first substrate and form a laminated structure.
Inventors
- 👤 John Biale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:04
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/38; C08J; C08J5/00; C08J5/12; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 51
Claim 1
Independent Claim
115 words
A method for laminating a substrate to an ionomer polyethylene carboxylate-containing film which comprises: (a) applying as a coating to the substrate a dispersion of a vinylidene chloride copolymer in water, such vinylidene chloride copolymer comprising on a comonomer weight basis: (1) from about 45 to about 90 percent vinylidene chloride, (2) from about 5 to about 25 percent of a polar comonomer having one or more hydroxyl groups, and (3) a cross-linking agent for hydroxyl groups, dissolved in said aqueous dispersion; and (b) forcefully engaging said ionomer carboxylate-containing film with said coating at a temperature between about 130° and 250° F. so as to adhere to said coated substrate and form a laminated structure.
Claim 2
Independent Claim
115 words
A method for laminating a substrate to an ionomer polyethylene carboxylate-containing film which comprises: (a) applying as a coating to the substrate a dispersion of a vinylidene chloride copolymer in water, such vinylidene chloride copolymer comprising on a comonomer weight basis: (1) from about 45 to about 90 percent vinylidene chloride, (2) from about 5 to about 25 percent of a polar comonomer having one or more hydroxyl groups, and (3) a cross-linking agent for hydroxyl groups, dissolved in said aqueous dispersion; and (b) forcefully engaging said ionomer carboxylate-containing film with said coating at a temperature between about 130° and 250° F. so as to adhere to said coated substrate and form a laminated structure.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein said substrate is a hydrophobic substrate.
Claim 4
Dependent Claim
13 words
The method of claim 2 wherein said hydrophobic substrate is a flexible film.
Claim 5
Dependent Claim
13 words
The method of claim 3 wherein said flexible film is a polyolefin film.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein said polyolefin film is a polypropylene film.
Claim 7
Dependent Claim
14 words
The method of claim 5 wherein said polypropylene film is an oriented polypropylene film.
Claim 8
Dependent Claim
15 words
The method of claim 3 wherein said flexible film is an ionomer polyethylene carboxylate-containing film.
Claim 9
Dependent Claim
19 words
The method of claim 7 wherein both ionomer polyethylene carboxylate-containing films have the carboxyl functionalities neutralized with sodium ions.
Claim 10
Dependent Claim
126 words
The method of claim 1 wherein said vinylidene chloride copolymer comprises from about 0.5 to about 1.5 parts of copolymerizable sulfonic acid or salt thereof per hundred parts of comonomers (a), (b), and (c), and said copolymerizable sulfonic acid or salt is selected from the group consisting of compounds represented by the general formula R--Z--Q--SO 3 - M + and R--SO 3 - M + wherein R is selected from the group consisting of vinyl and alpha substituted vinyl, Z is a bifunctional linking group capable of activating the double bond in the vinyl group, Q is a divalent hydrocarbon having its valence bonds on different carbon atoms, and M + is a cation selected from the group consisting of hydrogen, ammonium, and alkali metal cations.
Claim 11
Dependent Claim
19 words
The method of claim 1 wherein said substrate is an ionomer polyethylene having carboxyl functionalities neturalized by sodium ions
Claim 12
Dependent Claim
15 words
The method of claim 5 wherein said copolymerizable sulfonic acid or salt is sodium 2-sulfoethylmethacrylate.
Claim 13
Dependent Claim
98 words
The method of claim 1 wherein said vinylidene chloride copolymer comprises: (a) from about 70 to about 82 percent vinylidene chloride, (b) from about 7 to about 12 percent of a polar comonomer having one or more hydroxyl groups, and (c) from about 0.07 to about 1.0 equivalents per equivalent of hydroxyl group contained in said polar comonomers of a cross-linking agent for hydroxyl groups selected from the grou consisting of dialdehydes having between two and six carbon atoms, boric acid, and watersoluble metal salts of boric acid dissolved in the aqueous phase of the vinylidene chloride copolymer.
Claim 14
Dependent Claim
11 words
The method of claim 10 wherein said cross-linking agent is glyoxal.
Claim 15
Dependent Claim
12 words
The method of claim 12 wherein said cross-linking agent is boric acid.
Claim 16
Dependent Claim
13 words
The method of claim 9 wherein said cross-linking agent is sodium tetra borate.
Claim 17
Dependent Claim
23 words
The method of claim 12 wherein said cross-linking agent is chosen from the group consisting of dialdehydes having two to ten carbon atoms.
Claim 18
Dependent Claim
18 words
The method of claim 12 wherein said cross-linking agent is chosen from the group consisting of methylol-containing compounds.
Claim 19
Dependent Claim
13 words
The method of claim 12 wherein said cross-linking agent is a urea-formaldehyde resin.
Claim 20
Dependent Claim
13 words
The method of claim 12 wherein said cross-linking agent is a phenol-formaldehyde resin.
Claim 21
Dependent Claim
24 words
The method of claim 6 wherein said laminated structure has an adhesive peel strength greater than 100 grams per inch after 15 minutes aging.
Claim 22
Dependent Claim
24 words
The method of claim 6 wherein said laminated structure has an adhesive peel strength greater than 375 grams per inch after 16 hours aging.
Claim 23
Dependent Claim
24 words
The method of claim 6 wherein said laminated structure has an adhesive peel strength greater than 300 grams per inch after aging one week.
Claim 24
Dependent Claim
26 words
The method of claim 1 wherein the vinylidene chloride copolymer further comprises from about 0.1 to about 30 percent of a plasticizing monomer for vinylidene chloride.
Claim 25
Dependent Claim
37 words
The method of claim 23 wherein the vinylidene chloride copolymer contains from about 0.2 to about 1.5 parts of a copolymerizable sulfonic acid or salt per 100 parts of comonomers (1) and (2) and the plasticizing monomer.
Claim 26
Dependent Claim
96 words
The method of claim 24 wherein said copolymerizable sulfonic acid or salt is selected from the group consisting of compounds represented by the general formula: R--Z--Q--SO 3 - M + and R--SO 3 - M 30 wherein R is selected from the group consisting of vinyl and alpha-substituted vinyl, Z is a bifunctional linking group capable of activating the double bond in the vinyl group, Q ia a divalent hydrocarbon having its valence bonds on different carbon atoms, and M + is a cation selected from the group consisting of hydrogen, ammonium, and alkali metal cations.
Claim 27
Dependent Claim
51 words
The method of claim 1 wherein the vinylidene chloride copolymer further comprises from about 0.1 to about 30 percent of a plasticizing monomer for vinylidene chloride selected from the group consisting of alkyl esters of acrylic acid or metacrylic acid wherein the alkyl group comprises from 1 to 10 carbon atoms.
Claim 28
Dependent Claim
26 words
The method of claim 12 wherein the vinylidene chloride copolymer further comprises from about 6 to about 23 percent of a plasticizing comonomer for vinylidene chloride.
Claim 29
Dependent Claim
37 words
The method of claim 27 wherein the vinylidene chloride copolymer contains from about 0.2 to abut 1.5 parts of a copolymerizable sulfonic acid or salt per 100 parts of cmonomers (a) and (b) and the plasticizing comonomer.
Claim 30
Dependent Claim
96 words
The method of claim 28 wherein said copolymerizable sulfonic acid or salt is selected from the group consisting of compounds represented by the general formula: R--Z--Q--SO 3 - M + and R--SO 3 - M + wherein R is selected from the group consisting of vinyl and alpha-substituted vinyl, Z is a bifunctional linking group capable of activating the double bond in the vinyl group, Q is a divalent hydrocarbon having its valence bonds on different carbon atoms, and M + is a cation selected from the group consisting of hydrogen, ammonium, and alkali metal cations.
Claim 31
Dependent Claim
51 words
The method of claim 12 wherein the vinylidene chloride copolymer further comprises from about 0.1 to about 30 percent of a plasticizing monomer for vinylidene chloride selected from the group consisting of alkyl esters of acrylic acid or methacrylic acid wherein the alkyl group comprises from 1 to 10 carbon atoms.
Claim 32
Dependent Claim
26 words
The method of claim 12 wherein the vinylidene chloride copolymer further comprises from about 6 to about 23 percent of a plasticizing comonomer for vinylidene chloride.
Claim 33
Independent Claim
18 words
The method of claims 1, 4 or 6, wherein the temperqture of lamination is below about 200° F.
Claim 34
Dependent Claim
19 words
The method of claim 3, 5, or 8 wherein the temperature of lamination is about 170° F. or below.
Claim 35
Independent Claim
19 words
The method of claims 13, 15, or 17 wherein the temperature of lamination is about 200° F. or below.
Claim 36
Independent Claim
19 words
The method of claims 16, 18, or 20 wherein the temperature of lamination is about 170° F. or below.
Claim 37
Dependent Claim
14 words
The method of claim 1, 4, or 6 wherein the cross-linking agent is glyoxal.
Claim 38
Dependent Claim
23 words
The method of claim 2, 5, or 9 wherein the cross-linking agent is boric acid or water soluble metal salts of boric acid.
Claim 39
Dependent Claim
26 words
The method of claim 1, 5, or 7 wherein the cross-linking agent is chosen from the group consisting of dialdehydes having two to ten carbon atoms.
Claim 40
Dependent Claim
21 words
The method of claim 1, 4, or 6 wherein the cross-linking agent is chosen from the group consisting of methylol-containing compounds.
Claim 41
Dependent Claim
16 words
The method of claim 3, 5, or 7 wherein the cross-linking agent is a urea-formaldehyde resin.
Claim 42
Dependent Claim
16 words
The method of claim 3, 5, or 8 wherein the cross-linking agent is a phenol-formaldehyde resin.
Claim 43
Dependent Claim
30 words
The product made according to the method of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 22.
Claim 44
Dependent Claim
29 words
The product made according to the method of claim 4, 8, or 26 wherein the cross-linking agent is glyoxal and the temperature of lamination is below about 200° F.
Claim 45
Dependent Claim
37 words
The product made according to the method of claim 5, 23, or 31 wherein the cross-linking agent is boric acid or water soluble salts of boric acid and the temperature of lamination is below about 200° F.
Claim 46
Dependent Claim
15 words
The product of claim 44 wherein the temperature of lamination is 170° F. or below.
Claim 47
Dependent Claim
42 words
The product made according to the method of claim 4, 24, or 28 wherein the cross-linking agent is selected from the group consisting of dialdehydes having two to ten carbon atoms and the temperature of lamination is about 170° F. or below.
Claim 48
Dependent Claim
37 words
The product made according to the method of claim 5, 7, or 25 wherein the cross-linking agent is selected from the group consisting of methylol-containing compound and the temperature of lamination is about 170° F. or below.
Claim 49
Dependent Claim
25 words
The product made according to the method of claim 4 1, 13, 15, or 17 wherein the temperature of lamination is below about 200° F.
Claim 50
Dependent Claim
25 words
The product made according to the method of claim 2, 4, 6 or 18 wherein the temperature of lamination in about 170° F. or below.
Claim 51
Dependent Claim
19 words
The product made according to the method of claim 23, 24, 25, 26, 27, 28, 29, 30 or 31.
References Cited (Backward Citations)
US2909449A
Cited
US3030325A
Cited
US3041208A
Cited
US3324064A
Cited
US3183207A
Cited
US3375126A
Cited
US3850726A
Cited
US3714106A
Cited
US3736303A
Cited
US3696082A
Cited
US3755252A
Cited
US3808173A
Cited
US3796680A
Cited
US3904572A
Cited
US3908070A
Cited
US3988157A
Cited
US3883455A
Cited
US3922451A
Cited
US4144363A
Cited
US4002802A
Cited
US4244988A
Cited
US4287298A
Cited
US4233074A
Cited
US4442158A
Cited
US4374694A
Cited
US4394486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |