EP0249979A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hot melt pressure sensitive positioning adhesives
Assignee: Ingredion Inc
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Filing: 1987-06-19
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Granted: —
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Expires: 2007-06-19
Abstract
Abstract 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 a styrene-butadiene-styrene block or multi-block copolymer containing 38 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
EP
Data Source
google_patents
Last Synchronized
2026-11-08 12:58
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: 12
Claim 1
Independent Claim
155 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
155 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
56 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.
Claim 5
Dependent Claim
56 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.
Claim 6
Dependent Claim
22 words
The article of Claim 1 or 3 wherein the adhesive contains as a tackifying resin a copolymer of aliphatic and aromatic monomers.
Claim 7
Dependent Claim
26 words
The article of Claim 1 or 3 wherein the adhesive comprises 25-35% of the block polymer, 50-60% of the tackifying resin and 15-20% of the oil.
Claim 8
Dependent Claim
21 words
The article of Claim 1 or 3 wherein the adhesive composition additionally contains up to 15% by weight of a wax.
Claim 9
Dependent Claim
32 words
The article of Claim 1 or 3 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 10
Dependent Claim
15 words
The article of Claim 7 wherein the liquid plasticizing resin is a synthetic polyterpene resin.
Claim 11
Dependent Claim
14 words
The article of Claim 1 or 3 comprising a sanitary napkin or panty liner.
Claim 12
Dependent Claim
11 words
The article of Claim 1 or 3 comprising a diaper insert.
References Cited (Backward Citations)
No citation records indexed.
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