US4784708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding method of employing gluability enhancement composition
Assignee: WestRock Minnesota Corp
•
Filing: 1986-06-11
•
Granted: 1988-11-15
•
Expires: 2006-06-11
Abstract
Abstract Gluability of a resin-coated surface of polyester film is enhanced by applying to the surface a composition comprising ethylene vinyl acetate, nitrocellulose and rosin-modified maleic resins.
Inventors
- 👤 Robert L. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:07
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/308; B32B27/36; B32B7/00; B32B7/04; B32B7/12; B65; B65D; B65D5/00; B65D5/02; B65D5/0227; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; B32B2255/00; B32B2255/26; B32B2333/00; B32B2333/04; B32B2333/12; B32B2367/00; B32B2439/00; B32B2439/70; C08J2367/00; C08J2367/02; C08J2431/00; C08J2431/02; C08J2431/04; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 62
Claim 1
Independent Claim
40 words
A method of enhancing the gluability of ethylene-vinyl acetate hot melt adhesives applied to a resin-coated surface of a polyester film which comprises applying to the surface a gluability enhancing composition comprising ethylene vinyl acetate, nitrocellulose and rosin-modified maleic resin.
Claim 2
Independent Claim
40 words
A method of enhancing the gluability of ethylene-vinyl acetate hot melt adhesives applied to a resin-coated surface of a polyester film which comprises applying to the surface a gluability enhancing composition comprising ethylene vinyl acetate, nitrocellulose and rosin-modified maleic resin.
Claim 3
Dependent Claim
18 words
A method according to claim 1 in which the gluability enhancing composition further comprises isopropyl acetate and toluene.
Claim 4
Dependent Claim
18 words
A method according to claim 1 in which the gluability enhancing composition further comprises a UV fluorescent agent.
Claim 5
Dependent Claim
35 words
A method according to claim 1 in which the resin-coated surface is coated with a resin comprising a composition selected from the group consisting of cross-linkable acrylic compositions, cross-linkable methacrylic compositions and cross-linkable acrylic-methacrylic compositions.
Claim 6
Dependent Claim
25 words
A method according to claim 4 in which the resin used to coat the surface further comprises a condensation product of an amine with formaldehyde.
Claim 7
Dependent Claim
17 words
A method according to claim 5 wherein the amine is melamine, urea or diazines or their derivatives.
Claim 8
Dependent Claim
15 words
A method according to claim 5 wherein the amine formaldehyde condensation product may be alkylated.
Claim 9
Dependent Claim
55 words
A method according to claim 4 wherein the cross-linkable acrylic composition and the methacrylic composition are polymers of acrylic acid and methacrylic acid or their esters or amides respectively and the cross-linkable acrylic-methacrylic composition is a copolymer of acrylic acid and methacrylic acid or their esters or amides, all of the foregoing containing functional groups.
Claim 10
Dependent Claim
19 words
A method according to claim 1 in which the rosin-modified maleic resin is a non-alcohol soluble rosin-modified maleic resin.
Claim 11
Dependent Claim
36 words
A method according to claim 1 in which the gluability enhancing composition comprises 5 to 15% by weight nitrocellulose, 5 to 10% by weight ethylene vinyl acetate and 5 to 10% by weight rosin-modified maleic resin.
Claim 12
Dependent Claim
27 words
A method according to claim 10 in which the gluability enhancing composition further comprises esters and aromatic solvents in the range of 70 to 80% by weight.
Claim 13
Dependent Claim
43 words
A method according to claim 10 in which the gluability enhancing composition comprises 7.7% by weight of each of the nitrocellulose, ethylene vinyl acetate and rosin-modified maleic resin, which are dissolved in a solvent comprising by weight 60% isopropy acetate and 40% toluene.
Claim 14
Dependent Claim
22 words
A method according to claim 10 in which the gluability enhancing composition further comprises a UV fluorescent agent to aid proper registration.
Claim 15
Dependent Claim
35 words
A method according to claim 10 in which the resin-coated surface is coated with a resin comprising a composition selected from the group consisting of cross-linkable acrylic compositions, cross-linkable methacrylic compositions and cross-linkable acrylic-methacrylic compositions.
Claim 16
Dependent Claim
25 words
A method according to claim 14 in which the resin used to coat the surface further comprises a condensation product of an amine with formaldehyde.
Claim 17
Dependent Claim
17 words
A method according to claim 15 wherein the amine is melamine, urea or diazines or their derivatives.
Claim 18
Dependent Claim
15 words
A method according to claim 15 wherein the amine formaldehyde condensation product may be alkylated.
Claim 19
Dependent Claim
55 words
A method according to claim 14 wherein the cross-linkable acrylic composition and the methacrylic composition are polymers of acrylic acid and methacrylic acid or their esters or amides respectively and the cross-linkable acrylic-methacrylic composition is a copolymer of acrylic acid and methacrylic acid or their esters or amides, all of the foregoing containing functional groups.
Claim 20
Dependent Claim
19 words
A method according to claim 10 in which the rosin-modified maleic resin is a non-alcohol soluble rosin-modified maleic resin.
Claim 21
Independent Claim
69 words
A method of binding a resin-coated surface of a polyester film to a second surface using ethylene-vinyl acetate hot melt adhesives comprising: applying to a gluing area of the resin-coated surface a gluability enhancing composition comprising ethylene vinyl acetate, nitrocellulose, and rosin-modified maleic resins; applying to the gluing area over the gluability enhancing composition the ethylene-vinyl acetate hot melt adhesive; and mating the second surface and the resin-coated surface.
Claim 22
Independent Claim
69 words
A method of binding a resin-coated surface of a polyester film to a second surface using ethylene-vinyl acetate hot melt adhesives comprising: applying to a gluing area of the resin-coated surface a gluability enhancing composition comprising ethylene vinyl acetate, nitrocellulose, and rosin-modified maleic resins; applying to the gluing area over the gluability enhancing composition the ethylene-vinyl acetate hot melt adhesive; and mating the second surface and the resin-coated surface.
Claim 23
Dependent Claim
17 words
The method according to claim 20 in which gluability enhancing composition is applied by a rotogravure cylinder.
Claim 24
Dependent Claim
19 words
The method according to claim 20 in which the ethylene-vinyl acetate hot melt adhesive is applied by extruder application.
Claim 25
Dependent Claim
18 words
A method according to claim 20 in which the gluability enhancing composition further comprises isopropyl acetate and toluene.
Claim 26
Dependent Claim
22 words
A method according to claim 20 in which the gluability enhancing composition further comprises a UV fluorescent agent to aid proper registration.
Claim 27
Dependent Claim
35 words
A method according to claim 20 in which the resin-coated surface is coated with a resin comprising a composition selected from the group consisting of cross-linkable acrylic compositions, cross-linkable methacrylic compositions and cross-linkable acrylic-methacrylic compositions.
Claim 28
Dependent Claim
25 words
A method according to claim 25 in which the resin used to coat the surface further comprises a condensation product of an amine with formaldehyde.
Claim 29
Dependent Claim
17 words
A method according to claim 26 wherein the amine is melamine, urea or diazines or their derivatives.
Claim 30
Dependent Claim
15 words
A method according to claim 26 wherein the amine formaldehyde condenstaion product may be alkylated.
Claim 31
Dependent Claim
55 words
A method according to claim 26 wherein the cross-linkable acrylic composition and the methacrylic composition are polymers of acrylic acid and methacrylic acid or their esters or amides respectively and the cross-linkable acrylic-methacrylic composition is a copolymer of acrylic acid and methacrylic acid or their esters or amides, all of the foregoing containing functional groups.
Claim 32
Dependent Claim
19 words
A method according to claim 20 in which the rosin-modified maleic resin is a non-alcohol soluble rosin-modified maleic resin.
Claim 33
Dependent Claim
36 words
A method according to claim 20 in which the gluability enhancing composition comprises 5 to 15% by weight nitrocellulose, 5 to 10% by weight ethylene vinyl acetate and 5 to 10% by weight rosin-modified maleic resin.
Claim 34
Dependent Claim
27 words
A method according to claim 31 in which the gluability enhancing composition further comprises esters and aromatic solvents in the range of 70 to 80% by weight.
Claim 35
Dependent Claim
43 words
A method according to claim 31 in which the gluability enhancing composition comprises 7.7% by weight of each of the nitrocellulose, ethylene vinyl acetate and rosin-modified maleic resin, which are dissolved in a solvent comprising by weight 60% isopropyl acetate and 40% toluene.
Claim 36
Dependent Claim
22 words
A method according to claim 31 in which the gluability enhancing composition further, comprises a UV fluorescent agent to six proper registration.
Claim 37
Dependent Claim
35 words
A method according to claim 31 in which the resin-coated surface is coated with a resin comprising a composition selected from the group consisting of cross-linkable acrylic compositions, cross-linkable methacrylic compositions and cross-linkable acrylic-methacrylic compositions.
Claim 38
Dependent Claim
25 words
A method according to claim 35 in which the resin used to coat the surface further comprises a condensation product of an amine with formaldehyde.
Claim 39
Dependent Claim
17 words
A method according to claim 35 wherein the amine is melamine, urea or diazines or their derivatives.
Claim 40
Dependent Claim
15 words
A method according to claim 35 wherein the amine formaldehyde condensation product may be alkylated.
Claim 41
Dependent Claim
55 words
A method according to claim 34 wherein the cross-linkable acrylic composition and the methacrylic composition are polymers of acrylic acid and methacrylic acid or their esters or amides respectively and the cross-linkable acrylic-methacrylic composition is a copolymer of acrylic acid and methacrylic acid or their esters or amides, all of the foregoing containing functional groups.
Claim 42
Dependent Claim
19 words
A method according to claim 31 in which the rosin-modified maleic resin is a non-alcohol soluble rosin-modified maleic resin.
Claim 43
Dependent Claim
54 words
A container having one or more joints formed by joining two mating surfaces with ethylene-vinyl acetate hot melt adhesive wherein at least one of the surfaces joined is a resin-coated surface of a polyester film to which a gluability enhancing composition comprising ethylene vinyl acetate, nitrocellulose and rosin modified maleic resins has been applied.
Claim 44
Dependent Claim
54 words
A container having one or more joints formed by joining two mating surfaces with ethylene-vinyl acetate hot melt adhesive wherein at least one of the surfaces joined is a resin-coated surface of a polyester film to which a gluability enhancing composition comprising ethylene vinyl acetate, nitrocellulose and rosin modified maleic resins has been applied.
Claim 45
Dependent Claim
18 words
A container according to claim 41 in which the gluability enhancing composition further comprises isopropyl acetate and toluene.
Claim 46
Dependent Claim
22 words
A container according to claim 41 in which the gluability enhancing composition further comprises a UV fluorescent agent to aid proper registration.
Claim 47
Dependent Claim
35 words
A container according to claim 41 in which the resin-coated surface is coated with a resin comprising a composition selected from the group consisting of cross-linkable acrylic compositions, cross-linkable methacrylic compositions and cross-linkable acrylic-methacrylic compositions.
Claim 48
Dependent Claim
25 words
A container according to claim 44 in which the resin used to coat the surface further comprises a condensation product of an amine with formaldehyde.
Claim 49
Dependent Claim
17 words
A container according to claim 45 wherein the amine is melamine, urea or diazines or their derivatives.
Claim 50
Dependent Claim
15 words
A container according to claim 45 wherein the amine formaldehyde condensation product may be alkylated.
Claim 51
Dependent Claim
55 words
A container according to claim 44 wherein the cross-linkable acrylic composition and the methacrylic composition are polymers of acrylic acid and methacrylic acid or their esters or amides respectively and the cross-linkable acrylic-methacrylic composition is a copolymer of acrylic acid and methacrylic acid or their esters or amides all of the foregoing containing functional groups.
Claim 52
Dependent Claim
19 words
A container according to claim 41 in which the rosin-modified maleic resin is a non-alcohol soluble rosin-modified maleic resin.
Claim 53
Dependent Claim
36 words
A container according to claim 41 in which the gluability enhancing composition comprises 5 to 15% by weight nitrocellulose, 5 to 10% by weight ethylene vinyl acetate and 5 to 10% by weight rosin-modified maleic resin.
Claim 54
Dependent Claim
27 words
A container according to claim 50 in which the gluability enhancing composition further comprises esters and aromatic solvents in the range of 70 to 80% by weight.
Claim 55
Dependent Claim
43 words
A container according to claim 50 in which the gluability enhancing composition comprises 7.7% by weight of each of the nitrocellulose, ethylene vinyl acetate and rosin-modified maleic resin, which are dissolved in a solvent comprising by weight 60% isopropyl acetate and 40% toluene.
Claim 56
Dependent Claim
22 words
A container according to claim 50 in which the gluability enhancing composition further comprises a UV fluorescent agent to aid proper registration.
Claim 57
Dependent Claim
35 words
A container according to claim 50 in which the resin-coated surface is coated with a resin comprising a composition selected from the group consisting of cross-linkable acrylic compositions, cross-linkable methacrylic compositions and cross-linkable acrylic-methacrylic compositions.
Claim 58
Dependent Claim
25 words
A container according to claim 54 in which the resin used to coat the surface further comprises a condensation product of an amine with formaldehyde.
Claim 59
Dependent Claim
17 words
A container according to claim 55 wherein the amine is melamine, urea or diazines or their derivatives.
Claim 60
Dependent Claim
15 words
A container according to claim 55 wherein the amine formaldehyde may be alkylated condensation product.
Claim 61
Dependent Claim
55 words
A container according to claim 54 wherein the cross-linkable acrylic composition and the methacrylic composition are polymers of acrylic acid and methacrylic acid or their esters or amides respectively and the cross-linkable acrylic-methacrylic composition is a copolymer of acrylic acid and methacrylic acid or their esters or amides, all of the foregoing containing functional groups.
Claim 62
Dependent Claim
19 words
A container according to claim 50 in which the rosin-modified maleic resin is a non-alcohol soluble rosin-modified maleic resin.
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) | 1991-11-15 | 1992-05-16 | 1992-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-15 | 1996-05-16 | 1996-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-15 | 2000-05-16 | 2000-11-15 | $7700.00 | Window Closed / Lapsed |