Patent US4525316A successfully refreshed from Google Patents.
US4525316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shipping flexible polyurethane foam product
Assignee: Air Products and Chemicals Inc
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Filing: 1984-02-15
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Granted: 1985-06-25
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Expires: 2004-02-15
Abstract
Abstract A method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst and water to provide a foam product, (b) conditioning the foam product to develop substantially full cure, (c) applying a force to compress the product to a fraction of its original size, (d) shipping the compressed product and (e) removing the compression force so that the product may return to its original size, the improvement for reducing the conditioning time or temperature prior to compressing the foam product while ensuring the substantial restitution of the foamed product when the compression force is removed which improvement comprises employing as the catalyst in the flexible polyurethane foam composition a polyurethane catalyst which is N-alkyl morpholine or N-(dialkylaminoalky) morpholine.
Inventors
- 👤 Edward A. Galla
- 👤 Bruce A. Smoyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:48
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/56; B29C44/5627; B29C44/02; B29C44/10; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/18; C08G18/20; C08G18/2009; C08G18/2018; B29K; B29K2075/00
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
163 words
In a method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst system and water to provide a foam product, (b) conditioning the foam product by storing for a time and at a temperature sufficient to develop substantially full cure, (c) applying a force to compress the product to reduce its size, (d) shipping the compressed product and (e) removing the compression force so that the product may return to its original size, the improvement for reducing the conditioning time or temperature to develop substantially full cure prior to compressing the foam product while ensuring the substantial restitution of the foam product when the compression force is removed which improvement comprises employing in the flexible polyurethane foam composition a polyurethane amine catalyst system in which the major portion is N-(C 1 -C 18 ) hydrocarbyl morpholine or N-[di(C 1 -C 4 )alkylamino (C 2 -C 4 )alkyl] morpholine.
Claim 2
Dependent Claim
163 words
In a method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst system and water to provide a foam product, (b) conditioning the foam product by storing for a time and at a temperature sufficient to develop substantially full cure, (c) applying a force to compress the product to reduce its size, (d) shipping the compressed product and (e) removing the compression force so that the product may return to its original size, the improvement for reducing the conditioning time or temperature to develop substantially full cure prior to compressing the foam product while ensuring the substantial restitution of the foam product when the compression force is removed which improvement comprises employing in the flexible polyurethane foam composition a polyurethane amine catalyst system in which the major portion is N-(C 1 -C 18 ) hydrocarbyl morpholine or N-[di(C 1 -C 4 )alkylamino (C 2 -C 4 )alkyl] morpholine.
Claim 3
Dependent Claim
24 words
The method of claim 1 in which the N-(C 1 -C 18 ) hydrocarbyl morpholine is an N-(C 1 -C 4 ) alkyl morpholine.
Claim 4
Dependent Claim
11 words
The method of claim 1 in which the catalyst is 4-(2-dimethylaminoethyl)morpholine.
Claim 5
Dependent Claim
12 words
The method of claim 1 in which the catalyst is N-ethyl morpholine.
Claim 6
Dependent Claim
12 words
The method of claim 1 in which the catalyst is N-methyl morpholine.
Claim 7
Dependent Claim
19 words
The method of claim 1 in which the foam product is conditioned at a temperature less than 5° C.
Claim 8
Dependent Claim
18 words
The method of claim 1 in which the foam product is conditioned at a temperature about -5° C.
Claim 9
Dependent Claim
20 words
The method of claim 3 in which the foam product is conditioned at a temperature less the about -5° C.
Claim 10
Dependent Claim
18 words
The method of claim 3 in which the foam product is conditioned at a temperature about -5° C.
Claim 11
Dependent Claim
155 words
In a method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst system and water to provide a foam product, (b) conditioning the foam product by storing for a time and at a temperature sufficient to develop substantially full cure, (c) oversize cutting the foam product, (d) applying a force to compress the oversized product to reduce its size for shipping, (e) shipping the compressed product and (f) removing the compression force so that the product may return the desired size, the improvement for reducing the oversize cutting of the foam product by reducing the conditioning time or temperature to develop substantially full cure which comprises employing in the flexible polyurethane foam composition a polyurethane catalyst in which the major portion is N-(C 1 -C 4 )alkyl morpholine or N-[di(C 1 -C 4 )alkylamino (C 2 -C 4 )alkyl] morpholine.
Claim 12
Dependent Claim
155 words
In a method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst system and water to provide a foam product, (b) conditioning the foam product by storing for a time and at a temperature sufficient to develop substantially full cure, (c) oversize cutting the foam product, (d) applying a force to compress the oversized product to reduce its size for shipping, (e) shipping the compressed product and (f) removing the compression force so that the product may return the desired size, the improvement for reducing the oversize cutting of the foam product by reducing the conditioning time or temperature to develop substantially full cure which comprises employing in the flexible polyurethane foam composition a polyurethane catalyst in which the major portion is N-(C 1 -C 4 )alkyl morpholine or N-[di(C 1 -C 4 )alkylamino (C 2 -C 4 )alkyl] morpholine.
Claim 13
Dependent Claim
160 words
In a method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst system and water to provide a foam product, (b) conditioning the foam product by storing for a time and at a temperature sufficient to develop substantially full cure, (c) applying a force to compress the product to reduce its size, (d) shipping the compressed product and (e) removing the compression force so that the product may return to its original size, the improvement for reducing the conditioning time or temperature to develop substantially full cure prior to compressing the foam product while ensuring the substantial restitution of the foam product when the compression force is removed which improvement comprises employing in the flexible polyurethane foam composition a polyurethane amine catalyst system which is N-(C 1 -C 4 ) alkyl morpholine or N-[di(C 1 -C 4 )alkylamino (C 2 -C 4 ) alkyl] morpholine.
Claim 14
Dependent Claim
160 words
In a method for shipping flexible polyurethane foam product comprising (a) reacting a flexible polyurethane foam composition containing a polyisocyanate, a polyether polyol, a surfactant, a catalyst system and water to provide a foam product, (b) conditioning the foam product by storing for a time and at a temperature sufficient to develop substantially full cure, (c) applying a force to compress the product to reduce its size, (d) shipping the compressed product and (e) removing the compression force so that the product may return to its original size, the improvement for reducing the conditioning time or temperature to develop substantially full cure prior to compressing the foam product while ensuring the substantial restitution of the foam product when the compression force is removed which improvement comprises employing in the flexible polyurethane foam composition a polyurethane amine catalyst system which is N-(C 1 -C 4 ) alkyl morpholine or N-[di(C 1 -C 4 )alkylamino (C 2 -C 4 ) alkyl] morpholine.
Claim 15
Dependent Claim
11 words
The method of claim 11 in which the catalyst is 4-(2-dimethylaminoethyl)morpholine.
Claim 16
Dependent Claim
12 words
The method of claim 11 in which the catalyst is N-ethyl morpholine.
Claim 17
Dependent Claim
12 words
The method of claim 11 in which the catalyst is N-methyl morpholine.
Claim 18
Dependent Claim
19 words
The method of claim 11 in which the foam product is conditioned at a temperature less than 5° C.
Claim 19
Dependent Claim
18 words
The method of claim 11 in which the foam product is conditioned at a temperature about -5° C.
Claim 20
Dependent Claim
19 words
The method of claim 2 in which the foam product is conditioned at a temperature less than 5° C.
Claim 21
Dependent Claim
18 words
The method of claim 2 in which the foam product is conditioned at a temperature about -5° C.
Claim 22
Dependent Claim
18 words
The method of claim 1 in which the minor portion of the polyurethane amine catalyst system is triethylenediamine.
Claim 23
Dependent Claim
18 words
The method of claim 3 in which the minor portion of the polyurethane amine catalyst system is triethylenediamine.
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) | 1988-06-24 | 1988-12-24 | 1989-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-24 | 1992-12-24 | 1993-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-24 | 1996-12-24 | 1997-06-25 | $7700.00 | Window Closed / Lapsed |