US4410646A
Expired / Lapsed
US
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Form masses from thermoplastic synthetic materials and residues of coal hydrogenation
Assignee: Bergwerksverband GmbH
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Filing: 1982-05-19
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Granted: 1983-10-18
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Expires: 2002-05-19
Abstract
Abstract Synthetic form masses are described which are derived from thermoplastic polyolefins as well as mixed and copolymerisates thereof and a coal liquification product. The coat liquification product is a residue which precipitates out during extractive hydrogenation and has a softening point between 70° and 200° C. The thermoplastic polyolefin contains a component of polar, aromatic or cyclic monomers, which improve the compatibility of the components in the mixture. The form masses from this mixture, which may include filler material, have excellent tear resistance properties.
Inventors
- 👤 Ingo Romey
- 👤 Menachem El-Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:55
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
60 words
Form mass, comprising (a) thermoplastic material mixtures of polyolefins and/or olefin copolymers which contain polar, aromatic or cyclic monomers and (b) liquefaction products of coal and (c) where appropriate conventional fillers, wherein said liquefaction product is a residue occurring in extractive coal hydrogenation with a softening point of from 70° to 200° C., according to DIN (German Industrial Standard) 1995.
Claim 2
Dependent Claim
60 words
Form mass, comprising (a) thermoplastic material mixtures of polyolefins and/or olefin copolymers which contain polar, aromatic or cyclic monomers and (b) liquefaction products of coal and (c) where appropriate conventional fillers, wherein said liquefaction product is a residue occurring in extractive coal hydrogenation with a softening point of from 70° to 200° C., according to DIN (German Industrial Standard) 1995.
Claim 3
Dependent Claim
16 words
Form mass according to claim 1, wherein said softening point is from 120° to 200° C.
Claim 4
Dependent Claim
19 words
Form mass according to claim 1, wherein said residue contains up to 33% by weight of solid, non-melting substances.
Claim 5
Dependent Claim
15 words
Form mass according to claim 1, wherein said residue is freed of solid, non-melting substances.
Claim 6
Dependent Claim
22 words
Form mass according to claim 1, wherein said polyolefins have a melt index MFI 190/2.5 of from 0.1 to 1.7 g/10 min.
Claim 7
Dependent Claim
35 words
Form mass according to claim 1, wherein said copolymerizates have a proportion of polar monomers between 10 and 80% by weight and their softening point is between 70° and 190° C. according to DIN 1995.
Claim 8
Dependent Claim
41 words
Form mass according to claim 1, wherein as the proportion of said polar, aromatic and/or cyclic monomers increases from 5 to 30% by weight the proportion of filler also increases up to 40% by weight, relative to the total form mass.
Claim 9
Dependent Claim
20 words
Form mass according to claim 1, wherein said component (a) comprises mixed polymerizates of butadiene and polar or aromatic monomers.
Claim 10
Dependent Claim
20 words
Form mass according to claim 1, wherein said component (a) comprises mixed polymerizates with vinyl chloride as the monomer constituent.
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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |