US5534566A
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Stabilized halogen-containing polymers
Assignee: Galata Chemicals GmbH
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Filing: 1995-04-10
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Granted: 1996-07-09
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Expires: 2015-04-10
Abstract
Abstract Use of a di- or polysaccharide alcohol and an inorganic or organic zinc, aluminum or rare-earth compound allows a high degree of stabilization of a halogen-containing polymer or polymer recyclate.
Inventors
- 👤 Wolfgang Wehner
- 👤 Rolf Drewes
- 👤 Karl J. Kuhn
- 👤 Hans-Jurgen Sander
- 👤 Markus Kolb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1545; C08K3/00; C08K3/01; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
83 words
A stabilized halogen-containing polymer comprising (a) a halogen-containing polymer or a recyclate thereof, (b) a di- or polysaccharide alcohol of the formula C 6 H 11 O 6 (C 6 H 10 O 5 ) n C 6 H 13 O 5 , in which n is a number from 0 to 5; and (c) an inorganic or organic zinc, aluminium or rare-earth compound, where, if component (b) is maltitol, the composition does not comprise a combination of a calcium and zinc soap.
Claim 2
Dependent Claim
83 words
A stabilized halogen-containing polymer comprising (a) a halogen-containing polymer or a recyclate thereof, (b) a di- or polysaccharide alcohol of the formula C 6 H 11 O 6 (C 6 H 10 O 5 ) n C 6 H 13 O 5 , in which n is a number from 0 to 5; and (c) an inorganic or organic zinc, aluminium or rare-earth compound, where, if component (b) is maltitol, the composition does not comprise a combination of a calcium and zinc soap.
Claim 3
Dependent Claim
36 words
A stabilized halogen-containing polymer according to claim 1, wherein component (a) is PVC or recyclate thereof and, if desired, a phenolic antioxidant, in an amount of an amount of 0.1-5.0 parts per 100 parts of PVC.
Claim 4
Dependent Claim
15 words
A stabilized halogen-containing polymer according to claim 1, wherein component (b) is a disaccharide alcohol.
Claim 5
Dependent Claim
17 words
A stabilized halogen-containing polymer according to claim 1, wherein component (b) is maltitol, lactitol, isomaltitol or palatinitol.
Claim 6
Dependent Claim
24 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises a β-diketone and/or an Mg, Ca or Zn salt thereof or a β-ketoester.
Claim 7
Dependent Claim
13 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises an epoxide.
Claim 8
Dependent Claim
17 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises a monomeric, oligomeric or polymeric dihydropyridine.
Claim 9
Dependent Claim
17 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises an inorganic or organic calcium compound.
Claim 10
Dependent Claim
31 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises a phosphite, a perchlorate compound, a polyol, a hydrotalcite, a zeolite, a dawsonite, a magadiite, a kenyaite or a kanemite.
Claim 11
Dependent Claim
31 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises a β-diketone and/or an Mg, Ca or Zn salt thereof or a β-ketoester and a monomeric, oligomeric or polymeric dihydropyridine.
Claim 12
Dependent Claim
40 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises a β-diketone and/or an Mg, Ca or Zn salt thereof or a β-ketoester and a polyol, a hydrotalcite, a zeolite, a dawsonite, a magadiite, a kenyaite or a kanemite.
Claim 13
Dependent Claim
30 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises a perchlorate compound and a polyol, a hydrotalcite, a zeolite, a dawsonite, a magadiite, a kenyaite or a kanemite.
Claim 14
Dependent Claim
17 words
A stabilized halogen-containing polymer according to claim 1, which additionally comprises an epoxide and a perchlorate compound.
Claim 15
Dependent Claim
73 words
A stabilizer mixture comprising a di- or polysaccharide alcohol of the formula C 6 H 11 O 6 (C 6 H 10 O 5 ) n C 6 H 13 O 5 , in which n is a number from 0 to 5; and an inorganic or organic zinc, aluminium or rare-earth compound, where, if the disaccharide alcohol is maltitol, the composition does not comprise a combination of a calcium and zinc soap.
Claim 16
Dependent Claim
73 words
A stabilizer mixture comprising a di- or polysaccharide alcohol of the formula C 6 H 11 O 6 (C 6 H 10 O 5 ) n C 6 H 13 O 5 , in which n is a number from 0 to 5; and an inorganic or organic zinc, aluminium or rare-earth compound, where, if the disaccharide alcohol is maltitol, the composition does not comprise a combination of a calcium and zinc soap.
Claim 17
Dependent Claim
118 words
A process for the preparation of a stabilized halogen-containing polymer, which comprises mixing a stabilizer mixture comprising a di- or polysaccharide alcohol of the formula C 6 H 11 O 6 (C 6 H 10 O 5 ) n C 6 H 13 O 5 , in which n is a number from 0 to 5; and an inorganic or organic zinc, aluminium or rare-earth compound, where, if the disaccharide alcohol is maltitol, the composition does not comprise a combination of a calcium and zinc soap; as such or in the form of its individual constituents, and, if desired, further additives with a halogen-containing polymer or polymer recyclate using mixing devices which are calenders, mixers, compounders, or extruders.
Claim 18
Dependent Claim
118 words
A process for the preparation of a stabilized halogen-containing polymer, which comprises mixing a stabilizer mixture comprising a di- or polysaccharide alcohol of the formula C 6 H 11 O 6 (C 6 H 10 O 5 ) n C 6 H 13 O 5 , in which n is a number from 0 to 5; and an inorganic or organic zinc, aluminium or rare-earth compound, where, if the disaccharide alcohol is maltitol, the composition does not comprise a combination of a calcium and zinc soap; as such or in the form of its individual constituents, and, if desired, further additives with a halogen-containing polymer or polymer recyclate using mixing devices which are calenders, mixers, compounders, or extruders.
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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) | 1999-07-09 | 2000-01-08 | 2000-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-09 | 2004-01-08 | 2004-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-09 | 2008-01-08 | 2008-07-09 | $7700.00 | Window Closed / Lapsed |