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US4588767A
Expired / Lapsed
US
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Hot-melt adhesives based on vinyl polymer and process for adhering surfaces therewith
Assignee: Ingredion Inc
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Filing: 1985-05-24
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Granted: 1986-05-13
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Expires: 2005-05-24
Abstract
Abstract A hot-melt adhesive especially useful in the construction of disposable diapers contains a vinyl polymer of 40-90% by weight of a C1-C12 alkyl acrylate and 10-60% by weight of an alpha-olefin of C20-C40, wherein the alkyl acrylate may be partially replaced with vinyl acetate or with a C6-C12 olefin or with mixtures thereof, provided that the polymer contain at least 10% by weight of the alkyl acrylate. The adhesive may also contain a tackifying resin, a wax, an oil or a stabilizer depending on the specific end-use desired. In a preferred embodiment the polymer contains 20-45% by weight of the alpha-olefin.
Inventors
- 👤 Jules E. Schoenberg
- 👤 Thomas P. Flanagan
- 👤 Dilip K. Ray-Chaudhuri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:57
CPC Classifications
C; C09; C09J; C09J133/00; C09J133/04; C09J133/06; C09J133/08; A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C09J2301/00; C09J2301/30; C09J2301/304
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
124 words
A hot-melt adhesive comprising from 45-95% by weight of a vinyl polymer comprising: (a) 40-90% by weight of a C 1 -C 12 alkyl acrylate, and 10-60% by weight of an alpha-olefin of C 20 -C 40 , wherein said alkyl acrylate is partially replaced with up to 60% by weight, based on the polymer, of vinyl acetate or with up to 10% by weight, based on the polymer, of a C 6 -C 12 olefin or with a mixture of vinyl acetate and C 6 -C 12 olefin, provided that the polymer in all instances contains at least 10% by weight of said alkyl acrylate, and (b) 5-25% by weight of a tackifying resin, and (c) 0-30% by weight of a modifying component.
Claim 2
Dependent Claim
124 words
A hot-melt adhesive comprising from 45-95% by weight of a vinyl polymer comprising: (a) 40-90% by weight of a C 1 -C 12 alkyl acrylate, and 10-60% by weight of an alpha-olefin of C 20 -C 40 , wherein said alkyl acrylate is partially replaced with up to 60% by weight, based on the polymer, of vinyl acetate or with up to 10% by weight, based on the polymer, of a C 6 -C 12 olefin or with a mixture of vinyl acetate and C 6 -C 12 olefin, provided that the polymer in all instances contains at least 10% by weight of said alkyl acrylate, and (b) 5-25% by weight of a tackifying resin, and (c) 0-30% by weight of a modifying component.
Claim 3
Dependent Claim
21 words
The hot-melt adhesive of claim 1 wherein said modifying component is a stabilizer, pigment, wax, or oil, of any mixture thereof.
Claim 4
Dependent Claim
21 words
The hot-melt adhesive of claim 1 wherein said alpha-olefin is present in an amount of 20-45% by weight of the polymer.
Claim 5
Dependent Claim
16 words
The hot-melt adhesive of claim 1 wherein said alpha-olefin is of C 20 -C 30 .
Claim 6
Dependent Claim
31 words
The hot-melt adhesive of claim 1 wherein said adhesive comprises 10-30% by weight of said alkyl acrylate, 30-60% by weight of said vinyl acetate and 10-60% by weight of said alpha-olefin.
Claim 7
Dependent Claim
15 words
The hot-melt adhesive of claim 1 wherein said alkyl acrylate is ethyl or butyl acrylate.
Claim 8
Dependent Claim
45 words
The hot-melt adhesive of claim 1 wherein said tackifying resin is selected from the group consisting of rosin and modified rosins, aromatic hydrocarbon resins, coumarone-indene resins, aliphatic and aromatic-aliphatic copolymer resins and hydrogenated resins thereof, petroleum oils, phenolic resins, terpene resins and modified terpene resins.
Claim 9
Dependent Claim
56 words
A hot-melt adhesive comprising from 45-95% by weight of a vinyl polymer comprising: (a) 40-90% by weight of a C 1 -C 12 alkyl acrylate, and 10-60% by weight of an alpha-olefin of C 20 -C 40 , and (b) 5-25% by weight of a tackifying resin, and (c) 0-30% by weight of a modifying component.
Claim 10
Dependent Claim
56 words
A hot-melt adhesive comprising from 45-95% by weight of a vinyl polymer comprising: (a) 40-90% by weight of a C 1 -C 12 alkyl acrylate, and 10-60% by weight of an alpha-olefin of C 20 -C 40 , and (b) 5-25% by weight of a tackifying resin, and (c) 0-30% by weight of a modifying component.
Claim 11
Dependent Claim
29 words
The hot-melt adhesive of claim 8 wherein said alpha-olefin is present in an amount of 20-45% by weight of the polymer and is of C 20 -C 30 .
Claim 12
Dependent Claim
21 words
The hot-melt adhesive of claim 8 wherein said modifying component is a stabilizer, pigment, wax, or oil, or any mixture thereof.
Claim 13
Dependent Claim
45 words
The hot-melt adhesive of claim 8 wherein said tackifying resin is selected from the group consisting of rosin and modified rosins, aromatic hydrocarbon resins, coumarone-indene resins, aliphatic and aromatic-aliphatic copolymer resins and hydrogenated resins thereof, petroleum oils, phenolic resins, terpene resins and modified terpene resins.
Claim 14
Dependent Claim
15 words
The hot-melt adhesive of claim 8 wherein said alkyl acrylate is ethyl or butyl acrylate.
References Cited (Backward Citations)
GB1119045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |