Patent US1771125A successfully refreshed from Google Patents.
Patent US5583187A successfully refreshed from Google Patents.
US5583187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt adhesives based on hydroxy-functional polyesters
Assignee: Henkel IP and Holding GmbH
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Filing: 1995-05-03
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Granted: 1996-12-10
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Expires: 2015-05-03
Abstract
Abstract Hot melt adhesive compositions, particularly biodegradable hot melt adhesives are prepared from 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 0 to 90% by weight of a compatible tackifier; 0 to 80% by weight of a compatible plasticizer; 0 to 50% by weight of a compatible wax diluent and 0 to 3% by weight of a stabilizer.
Inventors
- 👤 Matthew L. Sharak
- 👤 Charles W. Paul
- 👤 Dilip Ray-Chaudhuri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:21
CPC Classifications
C; C09; C09J; C09J167/00; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10S; Y10S525/00; Y10S525/938
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
80 words
A hot melt adhesive composition comprising 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 10 to 90% by weight of a compatible tackifier; 0 to 80% by weight of a compatible plasticizer; 0 to 50% by weight of a compatible wax diluent and 0 to 3% by weight of a stabilizer; said adhesive being compostable or biodegradeable.
Claim 2
Dependent Claim
80 words
A hot melt adhesive composition comprising 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 10 to 90% by weight of a compatible tackifier; 0 to 80% by weight of a compatible plasticizer; 0 to 50% by weight of a compatible wax diluent and 0 to 3% by weight of a stabilizer; said adhesive being compostable or biodegradeable.
Claim 3
Dependent Claim
64 words
The hot melt adhesive of claim 1 wherein the thermoplastic methylol polyester containing repeating units of the formula: ##STR6## wherein each of R 1 and R 2 is independently a divalent organic moiety which is hydrocarbon, each R 3 is individually hydrogen or lower alkyl, y is a fraction from 0 to 0.5 and x is a fraction from about 0.05 to about 0.4.
Claim 4
Dependent Claim
69 words
The hot melt adhesive of claim 2 wherein each of R 1 and R 2 is independently a (1) an aliphatic, hydrocarbon, divalent moiety such as alkylene, cycloalkylene and alkenylene having from 2 to 10 carbons or (2) an aliphatic heteroatomic moiety having an alkylene or cycloalkylene groups which are interrupted by a heteroatomic moiety selected from the group consisting of oxygen, sulfur, imino, sulfonyl, carboxyl, carbonyl and sulfoxyl.
Claim 5
Dependent Claim
68 words
The hot melt adhesive of claim 2 wherein R 1 is an aliphatic, hydrocarbon, divalent moiety such as alkylene, cycloalkylene and alkenylene having from 2 to 10 carbons or an aliphatic heteroatomic moiety having an alkylene or cycloalkylene groups which are interrupted by a heteroatomic moiety selected from the group consisting of oxygen, sulfur, imino, sulfonyl, carboxyl, carbonyl and sulfoxyl and R 2 is an aromatic divalent moiety.
Claim 6
Dependent Claim
31 words
The hot melt adhesive of claim 1 wherein the polyester is a crystalline material having a Tg of 10° C. derived from the reaction of hydroquinone diglycidyl ether and 1,10-decandicarboxylic acid.
Claim 7
Dependent Claim
29 words
The hot melt adhesive of claim 1 wherein the polyester is an amorphous material having a Tg of 69° C. derived from bisphenol A diglycidyl ether and 1,4-cyclohexanedicarboxylic acid.
Claim 8
Dependent Claim
74 words
The hot melt adhesive of claim 1 wherein there is also present in the adhesive less than 20% by weight of thermoplastic polymers selected from the group consisting of ethylene vinyl acetate, ethylene acrylic acid, ethylene methyl acrylate and ethylene n-butyl acrylate copolymers containing 12 to 50% vinyl or acrylate comonomers; polylactide; starch or cellulose esters having a degree of substitution less than 2.5; poly(hydroxy butyrate hydroxy valerate) or caprolactone polymers and aliphatic polyesters.
Claim 9
Dependent Claim
53 words
The hot melt adhesive of claim 1 wherein there is also present in the adhesive up to 20% by weight of a hydrophilic polymer selected from the group consisting of polyvinyl alcohol, hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl methyl ether, poly(ethylene oxide), polyvinyl pyrrolidone and polyethyloxazoline, cellulose acetate or starch acetate with a DS<2.5.
Claim 10
Dependent Claim
61 words
A pressure sensitive hot melt adhesive composition comprising 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 10 to 90% of a compatible tackifying resin, 10 to 80% of a compatible plasticizer and 0 to 3% of a stabilizer.
Claim 11
Dependent Claim
61 words
A pressure sensitive hot melt adhesive composition comprising 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 10 to 90% of a compatible tackifying resin, 10 to 80% of a compatible plasticizer and 0 to 3% of a stabilizer.
Claim 12
Dependent Claim
15 words
The pressure sensitive adhesive of claim 9 wherein the polyester is essentially amorphous in character.
Claim 13
Dependent Claim
28 words
The pressure sensitive adhesive of claim 9 comprising 10 to 50% of the polyester; 20 to 60% of a sucrose benzoate; and 20 to 40% of the plasticizer.
Claim 14
Dependent Claim
67 words
A hot melt non-pressure sensitive adhesive comprising 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 10 to 90% of a compatible tackifying resin; 0 to 50% of a compatible diluent, 0 to 70% of a compatible plasticizer and 0 to 3% of a stabilizer.
Claim 15
Dependent Claim
67 words
A hot melt non-pressure sensitive adhesive comprising 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 10 to 90% of a compatible tackifying resin; 0 to 50% of a compatible diluent, 0 to 70% of a compatible plasticizer and 0 to 3% of a stabilizer.
Claim 16
Dependent Claim
14 words
The non-pressure sensitive adhesive of claim 12 wherein the polyester is crystalline in character.
Claim 17
Dependent Claim
47 words
The non-pressure sensitive adhesive of claim 12 comprising 20 to 60% of the polyester; 10 to 40% sucrose benzoate; 0 to 50% of a compatible plasticizer, and 0 to 20% of a wax-like diluent selected from the group consisting of hydrogenated castor oil, N,N'-ethylenebisstearamide and N-(2-hydroxyethyl-12-hydroxy stearamide.
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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) | 1999-12-10 | 2000-06-10 | 2000-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-12-10 | 2004-06-10 | 2004-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-12-10 | 2008-06-10 | 2008-12-10 | $7700.00 | Window Closed / Lapsed |