US4555550A
Expired / Lapsed
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Molding compositions based on high molecular weight polyether ester amides
Assignee: Huels AG
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Filing: 1985-02-25
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Granted: 1985-11-26
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Expires: 2005-02-25
Abstract
Abstract Improved molding compositions based on high-molecular polyether ester amides are obtained by heating at 180°-250° C. a melt containing a mixture of A. a polyether ester amide having a relative solution viscosity η rel of at least 1.5; and B. 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Inventors
- 👤 Michael Droescher
- 👤 Salih Mumcu
- 👤 Klaus Burzin
- 👤 Christian Gerth
- 👤 Horst Heuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/60; C08G18/606; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/791; C08G18/792; C08G69/00; C08G69/48; C08K5/29
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
A molding composition based on a high-molecular weight polyether ester amide having a relative solution viscosity η rel of at least 2.0, prepared by heating at 180°-250° C. a molten mixture of (A) a polyether ester amide with a relative solution viscosity η rel of at least 1.5 and less than 2.0; and (B) 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7; for a time effective to increase the η rel value of (A) to at least 2.0.
Claim 2
Dependent Claim
107 words
A molding composition based on a high-molecular weight polyether ester amide having a relative solution viscosity η rel of at least 2.0, prepared by heating at 180°-250° C. a molten mixture of (A) a polyether ester amide with a relative solution viscosity η rel of at least 1.5 and less than 2.0; and (B) 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7; for a time effective to increase the η rel value of (A) to at least 2.0.
Claim 3
Dependent Claim
15 words
A molding composition according to claim 1, wherein component (B) is cyclic, trimerized isophorone diisocyanate.
Claim 4
Dependent Claim
18 words
A molding composition according to claim 1, wherein the mixture contains 0.1-1.3 parts by weight of component (B).
Claim 5
Dependent Claim
94 words
A process for preparing a molding composition based on a high-molecular polyether ester amide having a relative solution viscosity η rel of at least 2.0, which comprises heating at 180°-250° C., a molten mixture of (A) a polyether ester amide having a relative solution viscosity η rel of at least 1.5 and less than 2.0; and (B) 10.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Claim 6
Dependent Claim
94 words
A process for preparing a molding composition based on a high-molecular polyether ester amide having a relative solution viscosity η rel of at least 2.0, which comprises heating at 180°-250° C., a molten mixture of (A) a polyether ester amide having a relative solution viscosity η rel of at least 1.5 and less than 2.0; and (B) 10.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Claim 7
Dependent Claim
20 words
A molding composition according to claim 1, wherein the mixture of components (A) and (B) is heated at 190°-240° C.
Claim 8
Independent Claim
80 words
A method of increasing the relative solution viscosity η rel of a polyether ester amide having an η rel value comprising heating the starting polyether ester amide at 180°-250° C., for a time effective to increase said η rel , in molten admixture with 0.05-1.5 parts of weight, based on 100 parts by weight of this admixture, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Claim 9
Independent Claim
80 words
A method of increasing the relative solution viscosity η rel of a polyether ester amide having an η rel value comprising heating the starting polyether ester amide at 180°-250° C., for a time effective to increase said η rel , in molten admixture with 0.05-1.5 parts of weight, based on 100 parts by weight of this admixture, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Claim 10
Dependent Claim
42 words
A method of claim 1, wherein the starting polyether ester amide has an η rel value of at least 1.5 and less than 2.0 and the time of heating is effective to increase η rel to a value of at least 2.0.
Claim 11
Dependent Claim
60 words
A composition comprising a polyether ester amide with a relative solution viscosity η rel of at least 1.5 and less than 2.0; and 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Claim 12
Dependent Claim
60 words
A composition comprising a polyether ester amide with a relative solution viscosity η rel of at least 1.5 and less than 2.0; and 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7.
Claim 13
Dependent Claim
98 words
A composition suitable for molding comprising an admixture of (A) a polyether ester amide with a relative solution viscosity η rel of at least 1.5 and less than 2.0; and (B) 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7, said admixture having been heated at 180°-250° C. in the molten state for a period of time effective to increase the η rel value of (A) to at least 2.0.
Claim 14
Dependent Claim
98 words
A composition suitable for molding comprising an admixture of (A) a polyether ester amide with a relative solution viscosity η rel of at least 1.5 and less than 2.0; and (B) 0.05-1.5 parts by weight, based on 100 parts by weight of the molding composition, of a cyclic, trimerized isophorone diisocyanate or an oligomer thereof having a degree of oligomerization of 2-5 and an isocyanate functionality of 3-7, said admixture having been heated at 180°-250° C. in the molten state for a period of time effective to increase the η rel value of (A) to at least 2.0.
Claim 15
Dependent Claim
30 words
A composition of claim 1, wherein the polyether ester amide is prepared from laurolactam, polytetrahydrofurandiol and dodecanoic acid or terephthalic acid and has a molecular weight of 5000 to 20000.
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) | 1988-11-25 | 1989-05-27 | 1989-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-25 | 1993-05-27 | 1993-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-25 | 1997-05-27 | 1997-11-26 | $7700.00 | Window Closed / Lapsed |