US4861805A
Expired / Lapsed
US
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Antistatic polyurethane shoe sole compositions
Assignee: Dow Chemical Co
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Filing: 1986-12-05
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Granted: 1989-08-29
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Expires: 2006-12-05
Abstract
Abstract This invention is an antistatic polyurethane shoe sole which is prepared by reacting in a closed mold a reaction mixture comprising (a) a relatively high equivalent weight polyester polyol or a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C3-C6 cyclic ether, (b) a chain extender compound, in an amount from about 5 to about 40 parts per 100 parts of component (a), (c) a sufficient amount of a blowing agent to provide a density of about 10 to about 65 pounds per cubic foot, (d) a polyisocyanate, in an amount to provide about 0.9 to about 1.2 isocyanate groups per active hydrogen-containing group present in the reaction mixture, and (e) a non-volatile ionizable metal salt, in an amount from about 0.01 to about 1 part per 100 parts by weight of component (a), said reaction being conducted in the substantial absence of a carboxylic acid ester of 6-30 carbon atoms, a fatty acid salt and a phosphate ester compound.
Inventors
- 👤 Jose V. Saavedra
- 👤 Douglas L. Hunter
- 👤 Steve A. Sims
- 👤 Donald M. Maschmeyer
- 👤 Thomas M. Knobel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:25
CPC Classifications
C; C08; C08L; C08L75/00; C08L75/04; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/22; A; A43; A43B; A43B13/00; A43B13/02; A43B13/04; C08K; C08K3/00; C08K3/01; C08K3/017; C08K5/00; C08K5/0008; C08K5/0075
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
179 words
An antistatic polyurethane shoe sole which is prepared by reacting in a closed mold a reaction mixture comprising (a) a relatively high equivalent weight polyester polyol, or a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C 3 -C 6 cyclic ether, (b) a chain extender compound, in an amount from about 5 to about 40 parts per 100 parts of component (a), (c) a sufficient amount of a blowing agent to provide a density of about 10 to about 65 pounds per cubic foot, (d) a polyisocyanate, in an amount to provide about 0.9 to about 1.2 isocyanate groups per active hydrogen-containing group present in the reaction mixture, and (e) a non-volatile ionizable metal salt, in an amount from about 0.01 to about 1 part per 100 parts by weight of component (a), said reaction being conducted in the substantial absence of a carboxylic acid ester of 6-30 carbon atoms, a fatty acid salt and a phosphate ester compound.
Claim 2
Dependent Claim
179 words
An antistatic polyurethane shoe sole which is prepared by reacting in a closed mold a reaction mixture comprising (a) a relatively high equivalent weight polyester polyol, or a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C 3 -C 6 cyclic ether, (b) a chain extender compound, in an amount from about 5 to about 40 parts per 100 parts of component (a), (c) a sufficient amount of a blowing agent to provide a density of about 10 to about 65 pounds per cubic foot, (d) a polyisocyanate, in an amount to provide about 0.9 to about 1.2 isocyanate groups per active hydrogen-containing group present in the reaction mixture, and (e) a non-volatile ionizable metal salt, in an amount from about 0.01 to about 1 part per 100 parts by weight of component (a), said reaction being conducted in the substantial absence of a carboxylic acid ester of 6-30 carbon atoms, a fatty acid salt and a phosphate ester compound.
Claim 3
Dependent Claim
32 words
The antistatic shoe sole of claim 1 wherein the non-volatile ionizable metal salt is an alkali metal salt in which the anion is a tetraorganoboron, SCN--, or CF 3 SO 3 --.
Claim 4
Dependent Claim
24 words
The antistatic shoe sole of claim 2 wherein the non-volatile ionizable metal salt is sodium tetraphenylboron, sodium thiocyanate, or NaCF 3 SO 3 .
Claim 5
Dependent Claim
24 words
The antistatic shoe sole of claim 2 wherein the chain extender is an α,β-alkylene glycol having from about 2 to about 4 carbon atoms.
Claim 6
Dependent Claim
39 words
The antistatic shoe sole of claim 4 wherein component (a) comprises a mixture of from about 0 to about 60 weight percent of a trifunctional, ethylene oxide-capped polyether and about 100-40 weight percent of a difunctional, ethylene oxide-capped polyether.
Claim 7
Dependent Claim
21 words
The antistatic shoe sole of claim 5 wherein component (a) has an average equivalent weight of about 1000 to about 2500.
Claim 8
Dependent Claim
38 words
The antistatic shoe sole of claim 6 wherein the non-volatile metal salt comprises sodium tetraphenylboron, and said non-volatile metal salt is present in an amount from about 0.05 to about 0.25 parts per 100 parts of component (a).
Claim 9
Dependent Claim
25 words
The antistatic shoe sole of claim 4 wherein component (a) is a polyester polyol having an average equivalent weight of about 1000 to about 2000.
Claim 10
Dependent Claim
15 words
The antistatic shoe sole of claim 8 wherein the non-volatile metal salt comprises sodium tetraphenylboron.
Claim 11
Dependent Claim
45 words
The antistatic shoe sole of claim 1 wherein component (a) is a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C 3 -C 6 cyclic ether.
Claim 12
Dependent Claim
45 words
The antistatic shoe sole of claim 2 wherein component (a) is a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C 3 -C 6 cyclic ether.
Claim 13
Dependent Claim
45 words
The antistatic shoe sole of claim 3 wherein component (a) is a relatively high equivalent weight polyether polyol containing about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C 3 -C 6 cyclic ether.
Claim 14
Dependent Claim
41 words
The antistatic shoe sole of claim 1 wherein component (a) comprises mixture of from about 0 to about 60 weight percent of a trifunctional, ethylene oxide-capped polyether and about 100 to about 40 weight percent of a difunctional, ethylene oxide-caped polyether.
Claim 15
Dependent Claim
42 words
The antistatic shoe sole of claim 2 wherein component (a) comprises a mixture of from about 0 to about 60 weight percent of a trifunctional, ethylene oxide-capped polyether and about 100 to about 40 weight percent of a difunctional, ethylene oxide-caped polyether.
Claim 16
Dependent Claim
42 words
The antistatic shoe sole of claim 1 wherein component (a) is a relatively high equivalent weight polyester polyol having an average equivalent weight of from about 700 to about 2500 and having an average functionally of from about 1.5 to about 4.
Claim 17
Dependent Claim
42 words
The antistatic shoe sole of claim 2 wherein component (a) is a relatively high equivalent weight polyester polyol having an average equivalent weight of from about 700 to about 2500 and having an average functionality of from about 1.5 to about 4.
Claim 18
Dependent Claim
58 words
The antistatic polyurethane shoe sole of claim 1 wherein component (a) comprises a mixture of relatively high equivalent weight polyester polyols or relatively high equivalent weight polyether polyols containing an average of about 5-25 weight percent repeating units derived from ethylene oxide and about 75-95 weight percent repeating units derived from a C 3 -C 6 cyclic ether.
Claim 19
Dependent Claim
44 words
The antistatic polyurethane shoe sole of claim 1 wherein there is less than about one part by weight of carboxylic acid esters of 6-30 carbon atoms, fatty acid salts and phosphate ester compounds per 100 parts by weight of relatively high equivalent weight polyols.
References Cited (Backward Citations)
FR2442514A1
Cited
FR2442513A1
Cited
US4357401A
Cited
US4438223A
Cited
US4617325A
Cited
US4618630A
Cited
US4621106A
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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) | 1992-08-28 | 1993-02-27 | 1993-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-28 | 1997-02-27 | 1997-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-28 | 2001-02-27 | 2001-08-29 | $7700.00 | Window Closed / Lapsed |