US4585501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of use of corrugating adhesive composition for adhering normally abherent surfaces
Assignee: Stone Container Corp
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Filing: 1985-07-15
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Granted: 1986-04-29
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Expires: 2005-07-15
Abstract
Abstract An aqueous starch-based corrugating adhesive containing casein, a carboxylated styrene-butadiene copolymer latex and preferably glyoxal is used to adhere liner and medium substrates having normally abherent surfaces.
Inventors
- 👤 Steven D. Overholt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:16
CPC Classifications
C; C09; C09J; C09J113/00; C09J113/02; C08; C08K; C08K5/00; C08K5/04; C08K5/07; C09J103/00; C09J103/02; C08L; C08L2666/00; C08L2666/02; C08L2666/26; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T156/1025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A method for adhesively bonding adjoining surfaces of a fluted medium and a paperboard liner to form corrugated board, which comprises applying a corrugating adhesive comprising: (a) about 40 to about 60 weight percent water; (b) about 12 to about 25 weight percent raw corn or wheat starch and about 1.5 to about 6 weight percent cooked corn or wheat starch; (c) about 15 to about 30 weight percent of a carboxylated styrene-butadiene copolymer latex as a 50 weight percent solids emulsion; (d) about 0.8 to about 2.5 weight percent casein; (e) about 0.1 to about 1.0 weight percent of a thickener and (f) about 0.5 to about 1.0 weight percent glyoxal to said liner or to the tips of said fluted medium.
Claim 2
Independent Claim
123 words
A method for adhesively bonding adjoining surfaces of a fluted medium and a paperboard liner to form corrugated board, which comprises applying a corrugating adhesive comprising: (a) about 40 to about 60 weight percent water; (b) about 12 to about 25 weight percent raw corn or wheat starch and about 1.5 to about 6 weight percent cooked corn or wheat starch; (c) about 15 to about 30 weight percent of a carboxylated styrene-butadiene copolymer latex as a 50 weight percent solids emulsion; (d) about 0.8 to about 2.5 weight percent casein; (e) about 0.1 to about 1.0 weight percent of a thickener and (f) about 0.5 to about 1.0 weight percent glyoxal to said liner or to the tips of said fluted medium.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said liner has a normally adherent surface.
Claim 4
Dependent Claim
19 words
The method of claim 2 wherein said liner has been coated or impregnated with a waxy or resinous material.
Claim 5
Dependent Claim
22 words
The method of claim 1 wherein the surface of said medium has been coated or impregnated with a waxy or resinous material.
Claim 6
Dependent Claim
22 words
The method of claim 1 wherein said liner has a low porosity surface at the points of contact with said fluted medium.
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) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |