US4704110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt pressure sensitive positioning adhesives
Assignee: Ingredion Inc
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Filing: 1986-06-20
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Granted: 1987-11-03
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Expires: 2006-06-20
Abstract
Abstract An absorbent article comprising an elongated absorbant pad having a body facing surface and a garment facing surface, a portion of the garment facing surface being coated with a hot melt pressure sensitive adhesive composition comprising a styrene-butadiene-styrene block or multi-block copolymer containing 35 to 55 parts styrene per 100 parts copolymer, a tackifying resin, a naphthenic or paraffinic oil, and an antioxidant.
Inventors
- 👤 Gary F. Raykovitz
- 👤 Catherine Salerno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:36
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61L15/585; C; C09; C09J; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/28
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
156 words
An absorbent article comprising an elongated absorbent pad having a body facing surface and a garment facing surface, a portion of the garment facing surface being coated with a hot melt pressure sensitive adhesive composition comprising: 20 to 40% by weight of a styrene-butadiene-styrene block or multi-block copolymer containing 38 to 55 parts styrene per 100 parts copolymer; 30 to 70% by weight of a tackifying resin selected from the group consisting of modified hydrogenated rosins; glycerol and pentaerythritol esters of modified hydrogenated rosins; copolymers and terpolymers of natural terpenes; polyterpene resins having a softening point, as determined by ASTM method E28-58T, of from about 80 to 150° C.; aromatic petroleum hydrocarbon resins and the hydrogenated derivatives thereof; and copolymers of aliphatic and aromatic monomers; 10 to 30% by weight of a naphthenic or paraffinic oil; and 0.1 to 2% by weight of an antioxidant; wherein the ratio of oil to copolymer is 1:1 or less.
Claim 2
Dependent Claim
156 words
An absorbent article comprising an elongated absorbent pad having a body facing surface and a garment facing surface, a portion of the garment facing surface being coated with a hot melt pressure sensitive adhesive composition comprising: 20 to 40% by weight of a styrene-butadiene-styrene block or multi-block copolymer containing 38 to 55 parts styrene per 100 parts copolymer; 30 to 70% by weight of a tackifying resin selected from the group consisting of modified hydrogenated rosins; glycerol and pentaerythritol esters of modified hydrogenated rosins; copolymers and terpolymers of natural terpenes; polyterpene resins having a softening point, as determined by ASTM method E28-58T, of from about 80 to 150° C.; aromatic petroleum hydrocarbon resins and the hydrogenated derivatives thereof; and copolymers of aliphatic and aromatic monomers; 10 to 30% by weight of a naphthenic or paraffinic oil; and 0.1 to 2% by weight of an antioxidant; wherein the ratio of oil to copolymer is 1:1 or less.
Claim 3
Dependent Claim
13 words
The article of claim 1 wherein the adhesive contains an A-B-A-B-A-B type copolymer.
Claim 4
Dependent Claim
15 words
The article of claim 1 wherein the adhesive contains a multi-block copolymer containing 45-55% styrene.
Claim 5
Dependent Claim
20 words
The article of claim 1 wherein the adhesive contains as a tackifying resin a copolymer of aliphatic and aromatic monomers.
Claim 6
Dependent Claim
24 words
The article of claim 1 wherein the adhesive comprises 25-35% of the block polymer, 50-60% of the tackifying resin and 15-20% of the oil.
Claim 7
Dependent Claim
19 words
The article of claim 1 wherein the adhesive composition additionally contains up to 15% by weight of a wax.
Claim 8
Dependent Claim
30 words
The article of claim 1 wherein some or all of the oil or some of the tackifying resin in the adhesive composition is replaced by a liquid aliphatic plasticizing resin.
Claim 9
Dependent Claim
15 words
The article of claim 7 wherein the liquid plasticizing resin is a synthetic polyterpene resin.
Claim 10
Dependent Claim
9 words
The article of claim 1 comprising a sanitary napkin.
Claim 11
Dependent Claim
9 words
The article of claim 1 comprising a panty liner.
Claim 12
Dependent Claim
9 words
The article of claim 1 comprising a diaper insert.
Claim 13
Dependent Claim
88 words
An absorbent article comprising an elongated absorbent pad having a body facing surface and a garment facing surface, a portion of the garment facing surface being coated with a hot melt pressure sensitive adhesive composition comprising: 25 to 35% by weight of a styrene-butadiene-styrene multi-block copolymer containing 45 to 55 parts styrene per 100 parts copolymer; 50to 60% by weight of a copolymer of aliphatic and aromatic monomers; 15 to 20% by weight of a naphthenic or paraffinic oil; and 0.1 to 2% by weight of an antioxidant.
Claim 14
Dependent Claim
88 words
An absorbent article comprising an elongated absorbent pad having a body facing surface and a garment facing surface, a portion of the garment facing surface being coated with a hot melt pressure sensitive adhesive composition comprising: 25 to 35% by weight of a styrene-butadiene-styrene multi-block copolymer containing 45 to 55 parts styrene per 100 parts copolymer; 50to 60% by weight of a copolymer of aliphatic and aromatic monomers; 15 to 20% by weight of a naphthenic or paraffinic oil; and 0.1 to 2% by weight of an antioxidant.
Claim 15
Dependent Claim
30 words
The article of claim 12 wherein some or all of the oil or some of the tackifying resin in the adhesive composition is replaced by a liquid aliphatic plasticizing resin.
Claim 16
Dependent Claim
15 words
The article of claim 13 wherein the liquid plasticizing resin is a synthetic polyterpene resin.
Claim 17
Dependent Claim
9 words
The article of claim 12 comprising a sanitary napkin.
References Cited (Backward Citations)
US4627847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-02 | 1991-05-04 | 1991-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-02 | 1995-05-04 | 1995-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-02 | 1999-05-04 | 1999-11-03 | $7700.00 | Window Closed / Lapsed |