Patent US4863983A successfully refreshed from Google Patents.
US4863983A
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Extrudable thermoplastic hydrocarbon polymer composition
Assignee: Dyneon LLC
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Filing: 1988-04-15
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Granted: 1989-09-05
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Expires: 2008-04-15
Abstract
Abstract An extrudable composition comprising hydrocarbon polymer, organophosphite or organophosphate compound and fluorocarbon polymer. The organophosphite or organophosphate and the fluorocarbon polymer are present in the composition in such relative proportions and concentrations as to reduce the occurrence of melt defects during the extrusion of said thermoplastic hydrocarbon polymer.
Inventors
- 👤 Bryce V. Johnson
- 👤 Joyce M. Kunde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:57
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/12; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C08K5/526; C08K5/521; C08K5/523; C08K5/527; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
84 words
An extrudable composition comprising (A) thermoplastic olefin polymer, as the major or predominant component of the composition, (B) organophosphite, organophosphate, or blends thereof, and (C) fluorocarbon polymer where the weight ratio of said fluorocarbon polymer to said organophosphite, organophosphate, or blend thereof is in the range of 1/1 to 1/5, the concentration of said fluorocarbon polymer is 0.005 to 0.1 weight percent, and the concentration of said organophosphite, organophosphate, or blend thereof is 0.01 to 0.2 weight percent based on the total composition weight.
Claim 2
Dependent Claim
84 words
An extrudable composition comprising (A) thermoplastic olefin polymer, as the major or predominant component of the composition, (B) organophosphite, organophosphate, or blends thereof, and (C) fluorocarbon polymer where the weight ratio of said fluorocarbon polymer to said organophosphite, organophosphate, or blend thereof is in the range of 1/1 to 1/5, the concentration of said fluorocarbon polymer is 0.005 to 0.1 weight percent, and the concentration of said organophosphite, organophosphate, or blend thereof is 0.01 to 0.2 weight percent based on the total composition weight.
Claim 3
Dependent Claim
50 words
The composition of claim 1 where said thermoplastic olefin polymer is selected from the group consisting of homopolymers of olefin, copolymers of olefins, and copolymers of one or more olefins and up to 30 weight percent of one or more monomers wich are copolymerized with such olefins, and blends thereof.
Claim 4
Dependent Claim
64 words
The composition of claim 2 where said thermoplastic olefin polymer is seleced from the group consisting of homopolymers or ethylene, homopolymers of propylene, copolymers of ethylene and 1-butene, copolymers of ethylene and 1-hexene, copolymers of ethylene and 1-octene, copolymers of ethylene and 4-methyl-1-pentene, copolymers of ethylene and propylene, copolymers of ethylene and ethyl vinyl acetate, copolymers of ethylene and ethyl methacrylate, and blends thereof.
Claim 5
Dependent Claim
121 words
The composition of claim 1 where said organophosphite or organophosphate have the general formula ##STR2## where a is 1 or 0, (where a is 0 the compound depicted is organophosphite and where a is 1 the compound depicted is organophosphate) b is an integer of 1 to 4 and equal to the valence of R 1 , R 1 is a monovalent or polyvalent organic radical, the R 2 groups, which can be the same or different, are monovalent organic radicals having from 1 to 30 carbon atoms and can be selected from substituted and unsubstituted aryl, alkyl, or combinations thereof and cycloalkyl groups, and R 1 and R 2 groups can contain heteroatoms and can be substituted with non-interferring substituents.
Claim 6
Dependent Claim
49 words
The composition of claim 4 where said organophosphite or organophosphate is selected from the group consisting of tris(2,4-di-tert.-butylphenyl) phosphite, bis(2,4-di-tert.-butylphenyl) pentaerythritol diphosphite, tris(4-nonylphenyl ) phosphite, tris[4-(1-phenylethyl)phenyl]phosphite, tetrakis(2,4-di-tert.-butylphenyl)-4,4'-bisphenylene diphosphite, tris(4-methylphenyl) phosphite, tris(4-chlorophenyl) phosphite, decyl diphenyl phosphite, tris(2,4-di-tert.-butylphenyl) phosphate, tris(4-methylphenyl) phosphate, tris(4-nonylphenyl) phosphate, tris(4-chlorophenyl) phosphate, 2-ethylhexyl diphenyl phosphate, and blends thereof.
Claim 7
Dependent Claim
30 words
The composition of claim 1 where said fluorocarbon polymer is selected from the group consisting of copolymers derived from fluorinated monomers and one or more additional fluorinated or non-fluorinated monomers.
Claim 8
Dependent Claim
17 words
The composition of claim 6 where said fluorocarbon polymer is a copolymer of vinylidene fluoride and hexafluoropropylene.
Claim 9
Dependent Claim
18 words
The composition of claim 6 where said fluorocarbon polymer is a copolymer of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene.
Claim 10
Dependent Claim
46 words
The composition of claim 1 where said thermoplastic olefin polymer is a copolymer of ethylene and butene-1, said organophosphite is selected from the group consisting of tris(2,3-di-tert.-butylphenyl) phosphite, bis(2,4-di-tert.-butylphenyl) pentaerythritol diphosphite, and tris(4-nonylphenyl) phosphite, and said fluorocarbon polymer is a copolymer of vinylidene fluoride and hexafluoropropylene.
Claim 11
Dependent Claim
11 words
The composition of claim 1 where said organophosphate is tris(4-methylphenyl) phosphate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-09-04 | 1993-03-06 | 1993-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-04 | 1997-03-06 | 1997-09-05 | $3760.00 | Window Closed / Lapsed |
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