Patent US4204986A successfully refreshed from Google Patents.
US4204986A
Expired / Lapsed
US
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Sealing, caulking and protective shielding composition of thermoplastic synthetic materials and carbonaceous materials
Assignee: Bergwerksverband GmbH
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Filing: 1979-01-10
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Granted: 1980-05-27
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Expires: 1999-01-10
Abstract
Abstract A sealing, packing, caulking and protective shielding composition comprising a mixture of at least one synthetic thermoplastic compound to which may be added at least one elastomer having thermoplastic properties with a carbonaceous material obtained by the liquefaction of coal which material has a boiling point above 350° C. at atmospheric pressure. The composition is useful, particularly for sealing and protective purposes in the building and installation industries, for instance in the form of foils for water-proofing various articles, as sealing compounds for pipes and as protective coating for containers, pipes, electric cables and so on.
Inventors
- 👤 Ingo Romey
- 👤 Aloys Schlutter
- 👤 Rolf Sommerfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:45
CPC Classifications
C; C08; C08L; C08L97/00; C08L97/002; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L23/0846; C08L23/0853; C08L95/00; C08L2203/00; C08L2203/18; C08L23/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
59 words
A sealing, packing, caulking and protective shielding composition comprising a mixture of (a) at least one synthetic thermoplastic compound which may include at least one elastomer having thermoplastic properties and (b) between 3 and 97% by weight of a carbonaceous material obtained by the liquefaction of coal which material has a boiling point above 350° C. at atmospheric pressure.
Claim 2
Dependent Claim
59 words
A sealing, packing, caulking and protective shielding composition comprising a mixture of (a) at least one synthetic thermoplastic compound which may include at least one elastomer having thermoplastic properties and (b) between 3 and 97% by weight of a carbonaceous material obtained by the liquefaction of coal which material has a boiling point above 350° C. at atmospheric pressure.
Claim 3
Dependent Claim
30 words
The composition of claim 1 in which the amount of thermoplastic compound or mixture of thermoplastic compound and elastomer is between 30 to 90% by weight of the total composition.
Claim 4
Dependent Claim
30 words
The composition of claim 1 wherein the thermoplastic compound is an ethylene vinylacetate copolymerisate having a vinyl acetate contents of 1 to 70% by weight relative to the total copolymerisate.
Claim 5
Dependent Claim
24 words
The composition of claim 1 wherein the amount of said elastomer having thermoplastic properties is up to 25% by weight of the total composition.
Claim 6
Dependent Claim
31 words
The composition of claim 1 wherein the non-liquefiable components of the coal and a filler or fillers are present in an amount up to 40% by weight of the total composition.
Claim 7
Dependent Claim
19 words
The composition of claim 5 wherein the fillers are graphite, soot, anthracite powder, chalk, stone powder or wood meal.
Claim 8
Dependent Claim
36 words
The composition of claim 1 wherein the predominant amount of coal components having boiling points below 350° C. at atmospheric pressure have been removed from the liquified coal product prior to its incorporation into the composition.
Claim 9
Dependent Claim
32 words
The composition of claim 1 wherein the total liquefaction product is obtained by means of one of the following coal liquefaction processes: Bergius-Pier; Pott-Broche, IG quick hydrogenation; solvent-refined coal (SRC) or Lurgie-Ruhrgas.
Claim 10
Dependent Claim
29 words
The composition of claim 1 which comprises 20 to 60% by weight of at least one thermoplastic compound and 20 to 70% by weight of the liquified coal product.
Claim 11
Dependent Claim
26 words
The composition of claim 9 which includes 4 to 20% of an elastomer having thermoplastic properties with a corresponding reduction of the amount of thermoplastic compound.
Claim 12
Dependent Claim
15 words
A shaped body formed by a pressure shaping process from the composition of claim 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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |