Patent US2007700A successfully refreshed from Google Patents.
US5433775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive stick based on starch ethers
Assignee: Henkel AG and Co KGaA
•
Filing: 1992-07-21
•
Granted: 1995-07-18
•
Expires: 2012-07-21
Abstract
Abstract The invention relates to a dimensionally stable, soft-rubbing adhesive stick consisting of a water-based preparation of starch derivatives and a soap gel as the shaping gel-forming component and, optionally, other auxiliaries. To obtain an adhesive stick which is largely based on natural raw materials and which may therefore be regarded as safe from ecological and toxicological standpoints, the invention is characterized in that viscosity-reduced starch ethers are present as the starch derivatives.
Inventors
- 👤 Karl-Josef Gardenier
- 👤 Gerhard Gierenz
- 👤 Wolfgang Klauck
- 👤 Bernd Peters
- 👤 Horst Donothek
- 👤 Norbert Doering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:23
CPC Classifications
C; C09; C09J; C09J9/00; C09J9/005; C09J103/00; C09J103/04; C09J103/08
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
71 words
An article useful as an adhesive stick comprising a water-based preparation of a macromolecular substance as an adhesive component and a soap gel as a shaping gel-forming component, wherein a viscosity-reduced starch ether with a viscosity of 100 to 1,000,000 mPas., Brookfield at 20° C, as measured in a 30% by weight solids aqueous solution and a degree of substitution of from 0.1 to 2.0 is present in the adhesive component.
Claim 2
Dependent Claim
71 words
An article useful as an adhesive stick comprising a water-based preparation of a macromolecular substance as an adhesive component and a soap gel as a shaping gel-forming component, wherein a viscosity-reduced starch ether with a viscosity of 100 to 1,000,000 mPas., Brookfield at 20° C, as measured in a 30% by weight solids aqueous solution and a degree of substitution of from 0.1 to 2.0 is present in the adhesive component.
Claim 3
Dependent Claim
38 words
An adhesive stick as claimed in claim 1 wherein said starch ether is nonionic and are reaction products of a native starch with a member selected from the group of ethylene oxide, propylene oxide, butylene oxide and glycidol.
Claim 4
Dependent Claim
18 words
An adhesive stick as claimed in claim 1 wherein the degree of substitution is from 0.2 to 1.0.
Claim 5
Dependent Claim
26 words
An article as claimed in claim 1 wherein said viscosity is reduced by mechanical destructuring, chemical destructuring, or by a combination of mechanical and chemical destructuring.
Claim 6
Dependent Claim
19 words
An article as claimed in claim 1 wherein said starch ether has a viscosity of 2,000 to 100,000 mPas.
Claim 7
Dependent Claim
19 words
An article as claimed in claim 1 wherein said starch ether has a viscosity of 3,000 to 30,000 mPas.
Claim 8
Dependent Claim
23 words
An article as claimed in claim 1 containing 5 to 10% by weight starch ethers having a viscosity of 1,000,000 to 50,000 mPAs.
Claim 9
Dependent Claim
23 words
An article as claimed in claim 1 containing 10 to 30% by weight starch ether having a viscosity of 100,000 to 2,000 mPAs.
Claim 10
Dependent Claim
23 words
An article as claimed in claim 1 containing 30 to 50% by weight starch ether having a viscosity of 30,000 to 100 mPAs.
Claim 11
Dependent Claim
27 words
An article as claimed in claim 1 wherein the content of said viscosity-reduced starch ether is 5% by weight based on the total weight of the stick.
Claim 12
Dependent Claim
29 words
An article as claimed in claim 1 wherein the content of said viscosity-reduced starch ether is greater than 10% by weight based on the total weight of the stick.
Claim 13
Dependent Claim
35 words
An article as claimed in claim 1 wherein the content of said viscosity-reduced starch ether is greater than 15% by weight and at most 50% by weight based on the total weight of the stick.
Claim 14
Dependent Claim
33 words
An article as claimed in claim 1 wherein a sodium salt of a C 12 -C 22 fatty acid of natural or synthetic origin is present as the soap forming the gel structure.
Claim 15
Dependent Claim
19 words
An article as claimed in claim 13 wherein said fatty acids is a C 14 -C 18 fatty acid.
Claim 16
Dependent Claim
34 words
An article as claimed in claim 13 wherein the sodium salt of the fatty acid is present in a quantity of 3 to 20% by weight based on the total weight of the stick.
Claim 17
Dependent Claim
26 words
An article as claimed in claim 16 wherein the sodium salt of the fatty acid is present in a quantity of 5 to 10% by weight.
Claim 18
Dependent Claim
37 words
An article as claimed in claim 11 further containing at least one member selected from the group consisting of plasticizers, pigments, dyes, fragrances, preservatives, moisture regulators, and other water-soluble and/or water-dispersible polymers present as a further auxiliary.
Claim 19
Dependent Claim
51 words
An article as claimed in claim 1 wherein said article contains 3 to 10% by weight sodium soap as said gel-forming component, 5 to 40% by weight viscosity-reduced starch ether, 0 to 25% by weight auxiliaries, 0 to 20% by weight water-soluble or dispersible polymer balance to 100% by weight water.
Claim 20
Dependent Claim
21 words
An article as claimed in claim 1 wherein said article has a compressive strength of 30 to 70 N/16 mm .0..
Claim 21
Dependent Claim
27 words
In a method of surface-to-surface bonding of substrates, the improvement comprising rubbing an article as claimed in claim 1 over the surface of one of said substrates.
Claim 22
Dependent Claim
16 words
A method as claimed in claim 20 wherein one of said substrates is paper and/or cardboard.
Claim 23
Dependent Claim
112 words
A process for the production of an article useful as an adhesive stick comprising: preparing an aqueous system of a viscosity-reduced starch ether having a degree of substitution of from 0.1 to 2.0 with degradation of the starch superstructures by mechanical action or by chemical degradation to a viscosity of from 100 to 1,000.000, mPAs, Brookfield at 20° C., measured in a 30% by weight aqueous solution, then thoroughly mixing the resulting preparation with a soap component which forms a soap gel, heating the mixture to temperatures of at least 50° C. until a uniform mixture is obtained, and cooling the mixture in the absence of mechanical action to form a gel.
Claim 24
Dependent Claim
112 words
A process for the production of an article useful as an adhesive stick comprising: preparing an aqueous system of a viscosity-reduced starch ether having a degree of substitution of from 0.1 to 2.0 with degradation of the starch superstructures by mechanical action or by chemical degradation to a viscosity of from 100 to 1,000.000, mPAs, Brookfield at 20° C., measured in a 30% by weight aqueous solution, then thoroughly mixing the resulting preparation with a soap component which forms a soap gel, heating the mixture to temperatures of at least 50° C. until a uniform mixture is obtained, and cooling the mixture in the absence of mechanical action to form a gel.
Claim 25
Dependent Claim
23 words
A process as claimed in claim 22 wherein said aqueous system contains from 20% to 70% by weight of said viscosity-reduced starch ether.
Claim 26
Dependent Claim
31 words
A process as claimed in claim 22 wherein said aqueous system is diluted with ,water after said degradation to a content of viscosity-reduced starch ether of 20 to 40% by weight.
References Cited (Backward Citations)
GB1207387A
Cited
USRE30747E
Cited
DE1811466A1
Cited
DE2054503A1
Cited
DE2204482A1
Cited
DE2219697A1
Cited
DE2419067A1
Cited
DE2620721A1
Cited
FR2338980A1
Cited
DE2613935A1
Cited
DE3015268A1
Cited
DE3328099A1
Cited
DE3606382A1
Cited
US4746696A
Cited
DE3702871A1
Cited
DE3921554A1
Cited
JPH04161475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |