US4722650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesive composition for book casemaking
Assignee: Ingredion Inc
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Filing: 1986-02-19
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Granted: 1988-02-02
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Expires: 2006-02-19
Abstract
Abstract A case or cover for a hard bound book is formed by bonding the formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising: (a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer where the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer; (b) 45 to 70% by weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Inventors
- 👤 Scott M. Allen
- 👤 Thomas P. Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:19
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10S; Y10S156/00; Y10S156/908
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
111 words
A case for a hard cover book formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising: (a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer where the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer; (b) 45 to 70% by weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Claim 2
Dependent Claim
111 words
A case for a hard cover book formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising: (a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer where the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer; (b) 45 to 70% by weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Claim 3
Dependent Claim
118 words
The case of claim 1 wherein the tackifier in the hot melt adhesive composition is any compatible resin or mixture thereof selected from the group consisting of (1) natural and modified rosins: (2) glycerol and pentaerythritol esters of natural and modified rosins; (3) copolymers and terpolymers of natured terpenes; (4) polyterpene resins having a softening point, as determined by ASTM method E28-58T, of from about 80° to 150° C.; (5) phenolic modified terpene resins and hydrogenated derivatives thereof; (6) aliphatic petroleum hydrocarbon resins having a Ball and Ring softening point of from about 70° to 135° C.; (7) aromatic petroleum hydrocarbon resins and the hydrogenated derivatives thereof; and (8) alicyclic petroleum hydrocarbon resins and the hydrogenated derivatives thereof.
Claim 4
Dependent Claim
30 words
The case of claim 1 wherein there is additionally present in the hot melt adhesive up to 10% of an ethylene vinyl acetate copolymer containing 17 to 42% vinyl acetate.
Claim 5
Dependent Claim
13 words
The case of claim 1 wherein the cover board is chestnut cover board.
Claim 6
Dependent Claim
32 words
The case of claim 1 wherein the cover stock is selected from the group consisting of paper cloth, woven fabric, pyroxylin, vinyl impregnated on coated stock and spun bonded high density polyethylene.
Claim 7
Dependent Claim
116 words
A case for a hard cover book formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising: (a) 20 to 35% by a weight of an A-B-A-B-A-B multi-block copolymer wherein the A component is styrene and the B component is butadiene and wherein the styrene component is present in an amount of at least 35 parts per 100 parts of the copolymer; (b) 45 to 70% by a weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by a weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Claim 8
Dependent Claim
116 words
A case for a hard cover book formed by bonding the cover boards to the book cover stock using a hot melt pressure sensitive adhesive composition comprising: (a) 20 to 35% by a weight of an A-B-A-B-A-B multi-block copolymer wherein the A component is styrene and the B component is butadiene and wherein the styrene component is present in an amount of at least 35 parts per 100 parts of the copolymer; (b) 45 to 70% by a weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by a weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Claim 9
Dependent Claim
20 words
The case of claim 6 wherein the block copolymer in the adhesive comprises 57 parts butadiene and 43 parts styrene.
Claim 10
Dependent Claim
20 words
The case of claim 6 wherein the block copolymer in the adhesive comprises 50 parts butadiene and 50 parts styrene.
Claim 11
Dependent Claim
118 words
The case of claim 6 wherein the tackifier in the hot melt adhesive composition is any compatible resin or mixture thereof selected from the group consisting of ((1) natural and modified rosins: (2) glycerol and pentaerythritol esters of natural and modified rosins; (3) copolymers and terpolymers of natured terpenes; (4) polyterpene resins having a softening point, as determined by ASTM method E28-58T, of from about 80° to 150° C.; (5) phenolic modified terpene resins and hydrogenated derivatives thereof; (6) aliphatic petroleum hydrocarbon resins having a Ball and Ring softening point of from about 70° to 135° C.; (7) aromatic petroleum hydrocarbon resins and the hydrogenated derivatives thereof; and (8) alicyclic petroleum hydrocarbon resins and the hydrogenated derivatives thereof.
Claim 12
Dependent Claim
28 words
The case of claim 9 wherein the tackifying resin in the adhesive is a modified terpene resin having a Ring and Ball softening part of about 100°-120° C.
Claim 13
Dependent Claim
22 words
The case of claim 9 wherein the tackifying resin in the adhesive is an aromatic petroleum hydrocarbon resin or hydrogenated derivative thereof.
Claim 14
Dependent Claim
30 words
The case of claim 6 wherein there is additionally present in the hot melt adhesive up to 10% of an ethylene vinyl acetate copolymer containing 17 to 42% vinyl acetate.
Claim 15
Dependent Claim
116 words
In a process for the production of a book case wherein the cover boards are bonded to the cover stock, the improvement which comprises using a hot melt pressure sensitive adhesive comprising: (a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer wherein the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer; (b) 45 to 70% by weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Claim 16
Dependent Claim
116 words
In a process for the production of a book case wherein the cover boards are bonded to the cover stock, the improvement which comprises using a hot melt pressure sensitive adhesive comprising: (a) 20 to 35% by weight of an A-B-A block or A-B-A-B-A-B multi-block copolymer wherein the A component is styrene and the B component is butadiene or hydrogenated butadiene and the copolymer contains at least 28 parts styrene per 100 parts copolymer; (b) 45 to 70% by weight of a compatible tackifying resin; (c) 5 to 30% by weight of a plasticizing oil; (d) 0 to 5% by weight of a petroleum derived wax; and (e) 0.1 to 2% by weight of a stabilizer.
Claim 17
Dependent Claim
26 words
The process of claim 13 wherein the block copolymer in the adhesive is an A-B-A-B-A-B multiblock containing at least 35 parts styrene plus 100 parts copolymer.
Claim 18
Dependent Claim
30 words
The process of claim 13 wherein there is additionally present in the hot melt adhesive up to 10% of an ethylene vinyl acetate copolymer containing 17 to 42% vinyl acetate.
Claim 19
Dependent Claim
13 words
The process of claim 13 wherein the cover board is chestnut cover board.
Claim 20
Dependent Claim
32 words
The process of claim 13 wherein the cover stock is selected from the group consisting of paper cloth, woven fabric, pyroxylin, vinyl impregnated or coated stock and spun bonded high density polyethylene.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-01 | 1991-08-03 | 1992-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-01 | 1995-08-03 | 1996-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-01 | 1999-08-03 | 2000-02-02 | $7700.00 | Window Closed / Lapsed |