US4451598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for sealing products
Assignee: Orkem SA
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Filing: 1983-06-02
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Granted: 1984-05-29
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Expires: 2003-06-02
Abstract
Abstract A composition for sealing products comprising from 35 to 95 weight percent of at least one distillation product selected from the group consisting of bitumens and soft pitches, and from 5 to 65 weight pecent of a terpolymer having a melt index between 1 and 10 dg/minute and comprising: (i) from 88 to 98.7 mole percent of units derived from ethylene (ii) from 1 to 10 mole percent of units derived from an ester selected from alkyl acrylates and methacrylates, wherein said alkyl group has from 1 to 6 carbon atoms, and (iii) from 0.3 to 3 mole percent of units derived from maleic anhydride.
Inventors
- 👤 Jean C. Decroix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:30
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L95/00; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J123/0846; C09J123/0869; C09K2200/00; C09K2200/06; C09K2200/0642; C09K2200/069
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
A composition for sealing products comprising: (a) from 35 to 95 weight percent of at least one distillation product selected from the group consisting of bitumens and soft pitches; and (b) from 5 to 65 weight percent of a terpolymer having a melt index between 1 and 10 dg/min and comprising: (i) from 88 to 98.7 mole percent of units derived from ethylene, (ii) from 1 to 10 mole percent of units derived from an ester selected from the group consisting of alkyl acrylates and methacrylates, wherein said alkyl group contains from 1 to 6 carbon atoms, and (iii) from 0.3 to 3 mole percent of units derived from maleic anhydride.
Claim 2
Dependent Claim
111 words
A composition for sealing products comprising: (a) from 35 to 95 weight percent of at least one distillation product selected from the group consisting of bitumens and soft pitches; and (b) from 5 to 65 weight percent of a terpolymer having a melt index between 1 and 10 dg/min and comprising: (i) from 88 to 98.7 mole percent of units derived from ethylene, (ii) from 1 to 10 mole percent of units derived from an ester selected from the group consisting of alkyl acrylates and methacrylates, wherein said alkyl group contains from 1 to 6 carbon atoms, and (iii) from 0.3 to 3 mole percent of units derived from maleic anhydride.
Claim 3
Dependent Claim
15 words
The composition of claim 1, wherein said terpolymer has a polydispersity index greater than 6.
Claim 4
Dependent Claim
68 words
The composition of claim 1, wherein said terpolymer further comprises a fourth monomer copolymerizable with each element of said terpolymer and selected from the group consisting of α-olefins having from 3 to 8 carbon atoms, monoalkyl maleates, and dialkyl maleates wherein said monoalkyl and dialkyl groups have from 1 to 6 carbon atoms, vinyl acetate, and carbon monoxide, present in an amount of up to 5 mole percent.
Claim 5
Dependent Claim
17 words
The composition of claim 1, wherein said distillation product has a penetrability of between 40 and 100.
Claim 6
Dependent Claim
11 words
A sealing product obtained from the composition according to claim 1.
Claim 7
Dependent Claim
11 words
The sealing product of claim 5 in the form of sheets.
Claim 8
Dependent Claim
20 words
The sealing product of claim 6, wherein said product is obtained by extrusion of said composition through a flat die.
Claim 9
Dependent Claim
16 words
The sealing product of claim 6, wherein said product is obtained by impregnation of said composition.
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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) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |