Patent US5136010A successfully refreshed from Google Patents.
US5136010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane elastomers and polyurea elastomers made using high functionality, low unsaturation level polyols prepared with double metal cyanide catalysts
Assignee: Arch Chemicals Inc
•
Filing: 1990-10-26
•
Granted: 1992-08-04
•
Expires: 2010-10-26
Abstract
Abstract This invention relates to a method of fabricating an elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 400 and about 15,000 and having a level of end group unsaturation of no greater than 0.04 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a polyisocyanate to produce an isocyanate-terminated prepolymer, and (e) reacting said isocyanate-terminated prepolymer with a chain extender in a mold in order to produce the elastomer. Also claimed is the elastomer produced by the above method utilizing a one-shot technique.
Inventors
- 👤 John W. Reisch
- 👤 Deborah M. Capone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:01
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/2663; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/4866
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
112 words
A polyurethane or polyurea elastomer made by reacting an isocyanate-terminated prepolymer with a chain-extender other than ethylene glycol, the isocyanate-terminated prepolymer being the reaction product of a polyisocyanate and a polyether polyol prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 2
Dependent Claim
112 words
A polyurethane or polyurea elastomer made by reacting an isocyanate-terminated prepolymer with a chain-extender other than ethylene glycol, the isocyanate-terminated prepolymer being the reaction product of a polyisocyanate and a polyether polyol prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 3
Dependent Claim
23 words
The elastomer of claim 1 wherein said chain extender is selected from the group consisting of diols, triols and diamines, and combinations thereof.
Claim 4
Dependent Claim
55 words
The elastomer of claim 1 wherein said chain extender is selected from the group consisting of 4,4'-methylene bis(2-chloroaniline) ("MOCA"), butane diol, hexane diol, propylene glycol, bisphenol A, polyalkylene oxide polyols with molecular weights between 100-500, glycerine, trimethylol propane, propoxylated adducts of glycerine or trimethylol propane, diethyltoluene diamine, ethylene diamine, triisopropyl amine, N,N-bis(2-hydroxypropyl)-aniline, and combinations thereof.
Claim 5
Dependent Claim
13 words
The elastomer of claim 1 which additionally contains at least one compounding ingredient.
Claim 6
Dependent Claim
24 words
The elastomer of claim 4 wherein said compounding ingredient is selected from the group consisting of plasticizers, uv stabilizers, adhesion promoters, fillers and pigments.
Claim 7
Dependent Claim
30 words
The elastomer of claim 4 wherein said compounding ingredient is employed in an amount of between 0 and about 75 weight percent based upon the total weight of the composition.
Claim 8
Dependent Claim
108 words
A polyurethane or polyurea elastomer made by reacting in a "one-shot" process a polyether polyol, a polyisocyanate, and a chain-extender other than ethylene glycol, the polyether polyol being prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 9
Dependent Claim
108 words
A polyurethane or polyurea elastomer made by reacting in a "one-shot" process a polyether polyol, a polyisocyanate, and a chain-extender other than ethylene glycol, the polyether polyol being prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 10
Dependent Claim
23 words
The elastomer of claim 7 wherein said chain extender is selected from the group consisting of diols, triols and diamines, and combinations thereof.
Claim 11
Dependent Claim
55 words
The elastomer of claim 7 wherein said chain extender is selected from the group consisting of 4,4'-methylene bis(2-chloroaniline) ("MOCA"), butane diol, hexane diol, propylene glycol, bisphenol A, polyalkylene oxide polyols with molecular weights between 100-500, glycerine, trimethylol propane, propoxylated adducts of glycerine or trimethylol propane, diethyltoluene diamine, ethylene diamine, triisopropyl amine, N,N-bis(2-hydroxypropyl)-aniline, and combinations thereof.
Claim 12
Dependent Claim
13 words
The elastomer of claim 7 which additionally contains at least one compounding ingredient.
Claim 13
Dependent Claim
24 words
The elastomer of claim 10 wherein said compounding ingredient is selected from the group consisting of plasticizers, uv stabilizers, adhesion promoters, fillers and pigments.
Claim 14
Dependent Claim
30 words
The elastomer of claim 10 wherein said compounding ingredient is employed in an amount of between 0 and about 75 weight percent based upon the total weight of the composition.
Claim 15
Independent Claim
94 words
A method of fabricating a cast elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 400 and about 15,000 and having a level of end group unsaturation of no greater than 0.04 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a polyisocyanate to produce an isocyanate-terminated prepolymer, and (c) reacting said isocyanate-terminated prepolymer with a chain extender other than ethylene glycol in a mold in order to produce a cast elastomer.
Claim 16
Independent Claim
94 words
A method of fabricating a cast elastomer which comprises the steps of: (a) fabricating a polyol having a molecular weight of between about 400 and about 15,000 and having a level of end group unsaturation of no greater than 0.04 milliequivalents per gram of polyol, said polyol being fabricated in the presence of a double metal cyanide catalyst, (b) reacting said polyol with a polyisocyanate to produce an isocyanate-terminated prepolymer, and (c) reacting said isocyanate-terminated prepolymer with a chain extender other than ethylene glycol in a mold in order to produce a cast elastomer.
Claim 17
Dependent Claim
23 words
The method of claim 13 wherein said chain extender is selected from the group consisting of diols, triols and diamines, and combinations thereof.
Claim 18
Dependent Claim
55 words
The method of claim 13 wherein said chain extender is selected from the group consisting of 4,4'-methylene bis(2-chloroaniline) ("MOCA"), butane diol, hexane diol, propylene glycol, biaphenol A, polyalkylene oxide polyols with molecular weights between 100-500, glycerine, trimethylol propane, propoxylated adducts of glycerine or trimethylol propane, diethyltoluene diamine, ethylene diamine, triisopropyl amine, N,N-bis(2-hydroxypropyl)-aniline, and combinations thereof.
Claim 19
Dependent Claim
13 words
The method of claim 13 which additionally contains at least one compounding ingredient.
Claim 20
Dependent Claim
24 words
The method of claim 16 wherein said compounding ingredient is selected from the group consisting of plasticizers, uv stabilizers, adhesion promoters, fillers and pigments.
Claim 21
Dependent Claim
30 words
The method of claim 16 wherein said compounding ingredient is employed in an amount of between 0 and about 75 weight percent based upon the total weight of the composition.
Claim 22
Dependent Claim
112 words
A polyurethane or polyurea elastomer made by reacting an isocyanate-terminated prepolymer with an ethylene glycol chain extender, the isocyanate-terminated prepolymer being the reaction product of an MDI polyisocyanate and a polyether polyol prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 23
Dependent Claim
112 words
A polyurethane or polyurea elastomer made by reacting an isocyanate-terminated prepolymer with an ethylene glycol chain extender, the isocyanate-terminated prepolymer being the reaction product of an MDI polyisocyanate and a polyether polyol prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 24
Dependent Claim
108 words
A polyurethane or polyurea elastomer made by reacting in a "one-shot" process a polyether polyol, an MDI polyisocyanate, and an ethylene glycol chain extender, the polyether polyol being prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
Claim 25
Dependent Claim
108 words
A polyurethane or polyurea elastomer made by reacting in a "one-shot" process a polyether polyol, an MDI polyisocyanate, and an ethylene glycol chain extender, the polyether polyol being prepared utilizing a double metal cyanide complex catalyst and having a molecular weight of between about 400 and about 15,000, said polyol having an end group unsaturation level of no greater than 0.04 milliequivalents per gram of polyol, the equivalent ratio of NCO groups on said polyisocyanate to active hydrogen groups on said polyol plus chain extender being between about 1:0.7 and about 1:1.3, and the molar ratio of chain extender to polyol being between about 0.15:1 and about 75:1.
References Cited (Backward Citations)
US3829505A
Cited
US3941849A
Cited
US4335188A
Cited
US4242490A
Cited
US4472560A
Cited
US4477589A
Cited
US4985491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-04 | 1996-02-03 | 1996-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-04 | 2000-02-03 | 2000-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-04 | 2004-02-03 | 2004-08-04 | $7700.00 | Window Closed / Lapsed |