Patent US3891584A successfully refreshed from Google Patents.
US3891584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-dispersible hot melt adhesives and products using same
Assignee: Ingredion Inc
•
Filing: 1974-02-22
•
Granted: 1975-06-24
•
Expires: 1994-02-22
Abstract
Abstract A water-dispersible hot melt adhesive comprises 75-95 parts of a graft copolymer of about 40-80% vinyl monomer and about 20-60% by weight of water-soluble polyalkylene oxide polymer, and 5-25 parts by weight tackifying resin. The water-soluble polyalkylene oxide polymer has a molecular weight of about 3000 to 20,000 and a polymerized ethylene oxide content of at least 50% by weight. The vinyl monomer is preferably a vinyl acetate or low molecular weight alkyl-substituted acrylate. The adhesive is preferably 7585% copolymer and 15-25% by weight tackifying resin.
Inventors
- 👤 Dilip K Ray-Chaudhuri
- 👤 Jules E Schoenberg
- 👤 Thomas P Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:22
CPC Classifications
C; C09; C09J; C09J151/00; C09J151/08; C08; C08F; C08F283/00; C08F283/06; C08K; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L101/00; C08L51/00; C08L51/08; C08L2666/00; C08L2666/02; C08L2666/28
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
63 words
A WATER-DISPERSIBLE HOT MELT ADHESIVE COMPOSITION COMPRISING A. 75-95 PARTS BY WEIGHT OF GRAFT COPOLYMER OF I. ABOUT 40-80% BY WEIGHT OF VINYL MONOMER; AND II. ABOUT 20-60% BY WEIGHT OF WATER-SOLUBLE POLYALKYLENE OXIDE POLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 3,000-20,000 AND A POLYMERIZED ETHYLENE OXIDE CONTENT OF AT LEAST 5% BY WEIGHT; AND B. 5-25 PARTS BY WEIGHT OF TACKIFYING RESIN.
Claim 2
Dependent Claim
63 words
A WATER-DISPERSIBLE HOT MELT ADHESIVE COMPOSITION COMPRISING A. 75-95 PARTS BY WEIGHT OF GRAFT COPOLYMER OF I. ABOUT 40-80% BY WEIGHT OF VINYL MONOMER; AND II. ABOUT 20-60% BY WEIGHT OF WATER-SOLUBLE POLYALKYLENE OXIDE POLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 3,000-20,000 AND A POLYMERIZED ETHYLENE OXIDE CONTENT OF AT LEAST 5% BY WEIGHT; AND B. 5-25 PARTS BY WEIGHT OF TACKIFYING RESIN.
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein said vinyl monomer is selected from the group consisting of vinyl acetate, methyl acrylate, ethyl acrylate and mixtures thereof.
Claim 4
Dependent Claim
12 words
The composition of claim 2, wherein said vinyl monomer is vinyl acetate.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein said vinyl monomer is an alkyl-substituted acrylate.
Claim 6
Dependent Claim
38 words
The composition of claim 1 wherein said polyalkylene oxide polymer is selected from the group consisting of homopolymers of ethylene oxide, random copolymers of ethylene and propylene oxides, block copolymers of ethylene and propylene oxides, and mixtures thereof.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein said graft copolymer contains about 25-45% by weight of said polyalkylene oxide polymer.
Claim 8
Dependent Claim
22 words
The composition of claim 1 wherein said polyalkylene oxide polymer has a polymerized ethylene oxide content of at least 75% by weight.
Claim 9
Dependent Claim
21 words
The composition of claim 1 wherein said graft copolymer additionally contains up to 20% by weight of reacted ethylenically unsaturated comonomers.
Claim 10
Dependent Claim
27 words
The composition of claim 8 wherein said comonomers are selected from the group consisting of 2-hydroxyethyl acrylate, N-vinyl pyrrolidone, and the sodium salt of ethylene sulfonic acid.
Claim 11
Dependent Claim
23 words
The composition of claim 1 comprising 75-85 parts by weight of said graft copolymer and 15-25 parts by weight of said tackifying resin.
Claim 12
Dependent Claim
34 words
The composition of claim 1 wherein said vinyl monomer is selected from the group consisting of vinyl esters, styrene, and the alkyl esters of acrylic acid having 1-8 carbon atoms in the alkyl portion.
Claim 13
Dependent Claim
13 words
The composition of claim 1 wherein said tackifying resin is a thermoplastic resin.
Claim 14
Dependent Claim
15 words
The composition of claim 1 additionally containing up to 25 parts of a wax-like diluent.
Claim 15
Dependent Claim
36 words
The composition of claim 1 wherein said graft copolymer contains about 25-45% by weight of said polyalkylene oxide polymer and said polyalkylene oxide polymer has a polymerized ethylene oxide content of at least 75% by weight.
Claim 16
Dependent Claim
25 words
The composition of claim 14 wherein said vinyl monomer is selected from the group consisting of vinyl acetate, methyl acrylate, ethyl acrylate and mixtures thereof.
Claim 17
Dependent Claim
21 words
The composition of claim 14 wherein said graft copolymer additionally contains up to 20% by weight of reacted ethylenically unsaturated comonomers.
Claim 18
Dependent Claim
13 words
The composition of claim 14 wherein said tackifying resin is a thermoplastic resin.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |