US3919176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-dispersible polyolefin compositions useful as hot melt adhesives
Assignee: Eastman Kodak Co
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Filing: 1973-10-01
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Granted: 1975-11-11
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Expires: 1993-10-01
Abstract
Abstract This invention relates to water-dispersible polyolefin compositions. In particular, it relates to water-dispersible polyolefin compositions useful as hot melt adhesive compositions. These holt melt adhesives have improved repulping properties and are produced from low-cost materials and, in addition, are suitable for bonding a variety of materials. The improved repulpability of the hot melt adhesive is achieved by using an esterified carboxylated polyolefin in formulating the hot melt adhesives.
Inventors
- 👤 Jr Max F Meyer
- 👤 Richard L Mcconnell
- 👤 Frederick B Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:22
CPC Classifications
C; C08; C08F; C08F8/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
50 words
WATER-DISPERSIBLE POLYOLEFIN COMPOSITIONS PARTICULARLY USEFUL AS HOT MELT ADHESIVE COMPOSITIONS FOR USE ON REPULPABLE PAPER PRODUCTS COMPRISING AN ESTERIFIED CARBOXYLATED POLYOLEFIN PREPARED BY REACTING CARBOXYLATED POLYOLEFIN HAVING A SAPONIFICATION NUMBER OF FROM ABOUT 10 TO ABOUT 160 WITH FROM 10 TO 100 MOLE PERCENT OF MONOHYDROXYPOLYETHER POUNDS OF THE FORMULA:
Claim 2
Dependent Claim
50 words
WATER-DISPERSIBLE POLYOLEFIN COMPOSITIONS PARTICULARLY USEFUL AS HOT MELT ADHESIVE COMPOSITIONS FOR USE ON REPULPABLE PAPER PRODUCTS COMPRISING AN ESTERIFIED CARBOXYLATED POLYOLEFIN PREPARED BY REACTING CARBOXYLATED POLYOLEFIN HAVING A SAPONIFICATION NUMBER OF FROM ABOUT 10 TO ABOUT 160 WITH FROM 10 TO 100 MOLE PERCENT OF MONOHYDROXYPOLYETHER POUNDS OF THE FORMULA:
Claim 3
Dependent Claim
35 words
Water-dispersible polyolefin compositions according to claim 1 wherein said carboxylated polyolefin is a maleated polyolefin prepared by reacting maleic anhydride and a polyolefin having a melt viscosity of from 500 to 50,000 centipoise at 190*C.
Claim 4
Dependent Claim
46 words
Water-dispersible polyolefin composition according to claim 2 wherein said polyolefin is a member of the group consisting of homopolymers prepared from alpha-olefin monomers having from 2 to 10 carbon atoms and copolymers prepared from at least two different alpha-olefin monomers having 2 to 10 carbon atoms.
Claim 5
Dependent Claim
22 words
Water-dispersible polyolefin composition according to claim 3 wherein said homopolymer is polyethylene having a density of from about 0.91 to about 0.98.
Claim 6
Dependent Claim
19 words
Water-dispersible polyethylene composition according to claim 4 wherein said polyethylene has a density of from about 0.92 to 0.96.
Claim 7
Dependent Claim
12 words
Water-dispersible polyolefin composition according to claim 3 wherein said homopolymer is poly-1-pentene.
Claim 8
Dependent Claim
12 words
Water-dispersible polyolefin composition according to claim 3 wherein said homopolyolefin is polypropylene.
Claim 9
Dependent Claim
13 words
Water-dispersible polypropylene composition according to claim 7 wherein said polypropylene is crystalline polypropylene.
Claim 10
Dependent Claim
13 words
Water-dispersible polypropylene composition according to claim 7 wherein said polypropylene is amorphous polypropylene.
Claim 11
Dependent Claim
19 words
Water-dispersible polyolefin composition according to claim 3 wherein said copolymer is a propylene/butene-1 copolymer containing 40-60 weight percent butene-1.
Claim 12
Dependent Claim
35 words
Water-dispersible polyolefin composition according to claim 1 wherein said carboxylated polyolefin is a maleated polyolefin prepared by reacting maleic anhydride and a polyolefin having a melt viscosity of from 1,000 to 2,500 centipoise at 190*C.
Claim 13
Dependent Claim
26 words
Water-dispersible polyolefin composition according to claim 11 wherein said monohydroxypolyether is a member of the group consisting of nonylphenoxypoly(ethyleneoxy)ethanol and ethoxylated stearyl alcohol (molecular weight 710).
Claim 14
Dependent Claim
19 words
Water-dispersible polyolefin composition according to claim 12 wherein said polyolefin is polyethylene having a density of 0.91 to 0.98.
Claim 15
Dependent Claim
19 words
Water-dispersible polyolefin composition according to claim 13 wherein said polyolefin is polyethylene having a density of 0.92 to 0.96.
Claim 16
Dependent Claim
12 words
Water-dispersible polyolefin composition according to claim 12 wherein said polyolefin is poly-1-pentene.
Claim 17
Dependent Claim
12 words
Water-dispersible polyolefin composition according to claim 12 wherein said polyolefin is polypropylene.
Claim 18
Dependent Claim
13 words
Water-dispersible polyolefin composition according to claim 16 wherein said polypropylene is crystalline polypropylene.
Claim 19
Dependent Claim
13 words
Water-dispersible polyolefin composition according to claim 16 wherein said polypropylene is amorphous polypropylene.
Claim 20
Dependent Claim
17 words
Water-dispersible polyolefin composition according to claim 12 wherein said copolymer is propylene/butene-1 containing 40-60 weight percent butene-1.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |