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US3853665A
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Method of bonding using polyester-wax fusion adhesives
Assignee: Dynamit Nobel AG
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Filing: 1972-03-07
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Granted: 1974-12-10
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Expires: 1992-03-07
Abstract
Abstract A fusion adhesive composition comprising a polyester and a wax, said wax present in said composition in an amount between 0.01 and 5 weight percent, based on the weight of the total composition; a method for preparing such a fusion adhesive composition and a method for adhering substances together utilizing a fusion adhesive composition.
Inventors
- 👤 A Gardziella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:31
CPC Classifications
C; C09; C09J; C09J167/00; C08; C08L; C08L91/00; C08L91/06; C08L2666/00; C08L2666/54
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
81 words
A METHOD FOR SECURING SURFACES TOGETHER WHICH COMPRISES CONTACTING A FIRST SURFACE WITH A COMPOSITION COMPRISING A POLYESTER AND A WAX, SAID WAX PRESENT IN THE SAID COMPOSITION IN AN AMOUNT BETWEEN ABOUT 0.01 AND 5 PERCENT BY WEIGHT , BASED ON THE WEIGHT OF SAID COMPOSITION IN MOLTEN FORM, APPLYING A SECOND SURFACE TO SAID MOLTEN FORM OF SAID COMPOSITION, APPLYING PRESSURE TO THE SURFACES TILL SAID COMPOSITION SETS, AND RECOVERING A MATERIAL IN WHICH THE SURFACES ARE SECURED TOGETHER.
Claim 2
Independent Claim
81 words
A METHOD FOR SECURING SURFACES TOGETHER WHICH COMPRISES CONTACTING A FIRST SURFACE WITH A COMPOSITION COMPRISING A POLYESTER AND A WAX, SAID WAX PRESENT IN THE SAID COMPOSITION IN AN AMOUNT BETWEEN ABOUT 0.01 AND 5 PERCENT BY WEIGHT , BASED ON THE WEIGHT OF SAID COMPOSITION IN MOLTEN FORM, APPLYING A SECOND SURFACE TO SAID MOLTEN FORM OF SAID COMPOSITION, APPLYING PRESSURE TO THE SURFACES TILL SAID COMPOSITION SETS, AND RECOVERING A MATERIAL IN WHICH THE SURFACES ARE SECURED TOGETHER.
Claim 3
Dependent Claim
28 words
A method according to claim 1 wherein said wax is present in an amount between 0.5 and 2 percent by weight, based on the weight of the composition.
Claim 4
Dependent Claim
31 words
A method according to claim 1 wherein saiad polyester has a melting point between 70* and 200*C and said wax is present in amount between 0.5 and 2 percent by weight.
Claim 5
Dependent Claim
48 words
A method according to claim 3 wherein said wax is one prepared by the Fischer-Tropsch process and has a melting point between 50* and 150*C, an acid number between 30 and 80 and a saponification number between 30 and 80 and a saponification number between 90 and 130.
Claim 6
Dependent Claim
17 words
A method according to claim 4 wherein said wax has a melting point between 50* and 100*C.
Claim 7
Dependent Claim
44 words
A method according to claim 3 wherein said wax is a microwax obtained by the deparaffination of a petroleum stock and has a melting point between 80* and 110*C., an acid number between 10 and 20 and a saponification number between 20 and 45.
Claim 8
Dependent Claim
46 words
A method according to claim 3 wherein said wax is an oxide wax comprising a microwax obtained from the deparaffination of petroleum and has a melting point between 80* and 120*C., an acid number between 10 and 20 and a saponification number between 20 and 70.
Claim 9
Dependent Claim
44 words
A method according to claim 3 wherein said wax is an oxide wax comprising an amount of soft petrolatum and has a melting point of between 40* and 70*C., an acid number between 50 and 60, and a saponification number between 100 and 115.
Claim 10
Dependent Claim
18 words
A method according to claim 3 wherein said polyester is copolymerized wth another substance having fusion adhesive properties.
Claim 11
Dependent Claim
12 words
A method according to claim 9 wherein said polyester is a co-polyester.
Claim 12
Dependent Claim
27 words
A method according to claim 10 wherein said copolyester comprises a co-polyester prepared from monomers of dimethylterephthalate and dimethylisophthalate with an amount of sebacic acid and 1,4-butanediol.
Claim 13
Dependent Claim
38 words
A method according to claim 11 wherein the composition contains an inorganic powder selected from the group consisting of salicic acid, titanium dioxide, zirconium oxide, aluminum oxide, talcum, gypsum, fluorspar, kaolin, mica, barium sulfate, calcium carbonate and bentonite.
Claim 14
Independent Claim
78 words
A method for securing surfaces together which comprises contacting a first surface with a composition consisting essentially of a polyester and a wax, said wax present in said composition in an amount between about 0.01 and 5 percent by weight, based on the composition, in molten form, applying a second surface to said molten form of said composition, applying pressure to the surface until said composition sets, and recovering a material in which the surfaces are secured together.
Claim 15
Independent Claim
78 words
A method for securing surfaces together which comprises contacting a first surface with a composition consisting essentially of a polyester and a wax, said wax present in said composition in an amount between about 0.01 and 5 percent by weight, based on the composition, in molten form, applying a second surface to said molten form of said composition, applying pressure to the surface until said composition sets, and recovering a material in which the surfaces are secured together.
Claim 16
Dependent Claim
25 words
A method according to claim 13 wherein said polyester has a melting point between 70* and 200*C and is a polyester of a phthalic acid.
Claim 17
Dependent Claim
24 words
A method according to claim 14 wherein said polyester is a polyester with at least one aliphatic dicarboxylic acid of 6 to 36 carbon.
Claim 18
Dependent Claim
35 words
A method according to claim 15 wherein said polyester further contains a moiety of a glycol selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, butylene glycol, a pentanediol and a hExanediol.
References Cited (Backward Citations)
US3515628A
Cited
US3728212A
Cited
US3619392A
Cited
US3644245A
Cited
US3755526A
Cited
US3726817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |