Patent US4701474A successfully refreshed from Google Patents.
US4701474A
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Reduced reactivity polyols as foam controllers in producing polyurethanes foams
Assignee: OSI Specialties Inc
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Filing: 1986-04-09
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Granted: 1987-10-20
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Expires: 2006-04-09
Abstract
Abstract Reduced reactivity polyols are provided as foam controllers in the production of polyurethane foams. When the foam controllers are incorporated into polyurethane foam formulations, foam rise time is increased without adverse effects on foam characteristics, such as load bearing capability, resiliency and porosity. The foam controllers are acid grafted polyethers, such as acrylic acid grafted poly(alkylene oxides), and can be employed in surprisingly low concentrations to control reactivity.
Inventors
- 👤 Frederick E. Bailey, Jr.
- 👤 Benny J. Argento
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:16
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/63; C08G18/638; C08G18/08; C08G18/089
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
81 words
A process for producing flexible polyurethane foams wherein the foam rise is controlled without adverse effect on the resulting foam properties, said process comprising reacting and foaming in one step a reaction mixture comprising: (1) a polyol having a hydroxyl number from about 10 to about 250, (2) an organic polyisocyanate: (3) water; and (4) a foam rise controlling amount of an alkenoic acid grafted poly(alkylene oxide) polymer with a number average molecular weight of from about 1000 to about 10,000.
Claim 2
Dependent Claim
81 words
A process for producing flexible polyurethane foams wherein the foam rise is controlled without adverse effect on the resulting foam properties, said process comprising reacting and foaming in one step a reaction mixture comprising: (1) a polyol having a hydroxyl number from about 10 to about 250, (2) an organic polyisocyanate: (3) water; and (4) a foam rise controlling amount of an alkenoic acid grafted poly(alkylene oxide) polymer with a number average molecular weight of from about 1000 to about 10,000.
Claim 3
Dependent Claim
30 words
A process as claimed in claim 1 wherein the alkenoic acid used in preparing the grafted poly(alkylene oxide) polymer has the formula: ##STR5## wherein R represents hydrogen or lower alkyl.
Claim 4
Dependent Claim
14 words
A process as claimed in claim 2 wherein the alkenoic acid is acrylic acid.
Claim 5
Dependent Claim
14 words
A process as claimed in claim 2 wherein the alkenoic acid is methacrylic acid.
Claim 6
Dependent Claim
13 words
A process as claimed in claim 2 wherein the alkenoic acid is 2-ethylacrylic.
Claim 7
Dependent Claim
13 words
A process as claimed in claim 2 wherein the alkenoic acid is 2-propyl-acrylic.
Claim 8
Dependent Claim
93 words
A process as claimed in claim 1 wherein the poly(alkylene oxide) polymer has the formula: R[0(EO).sub.x (PO).sub.y (BO).sub.z (H)].sub.n wherein R is an organic radical containing from 1 to 12 carbon atoms: EO represents an oxyethylene group, PO represents an oxypropylene group, BO represents an oxybutylene groupl x, y and z represent zero or a positive integer, with at least one of x and y being a positive integer, the sum of x, y and z being from about 30 to about 200, and n has a value of from 1 to 6.
Claim 9
Dependent Claim
16 words
A process as claimed in claim 7 wherein said poly(alkylene oxide) polymer is a polyethylene oxide.
Claim 10
Dependent Claim
21 words
A process as claimed in claim 7 wherein said poly(alkylene oxide) polymer is a copolymer of ethylene oxide and propylene oxide.
Claim 11
Dependent Claim
16 words
A process as claimed in claim 7 wherein said poly(alkylene oxide) polymer is a polypropylene oxide.
Claim 12
Dependent Claim
14 words
A process as claimed in claim 8 wherein said polymer is a block copolymer
Claim 13
Dependent Claim
14 words
A process as claimed in claim 8 wherein said polymer is a random copolymer.
Claim 14
Dependent Claim
23 words
A process as claimed in claim 7 wherein said poly(alkylene oxide) polymer is a terpolymer of ethylene oxide propylene oxide and butylene oxide.
Claim 15
Dependent Claim
14 words
A process as claimed in claim 13 wherein said terpolymer is a block terpolymer.
Claim 16
Dependent Claim
14 words
A process as claimed in claim 13 wherein said terpolymer is a random terpolymer.
Claim 17
Dependent Claim
20 words
A process as claimed in claim 1 wherein said alkenoic acid grafted (alkylene oxide) polymer is contained in a diluent.
Claim 18
Dependent Claim
20 words
A process as claimed in claim 15 wherein said diluent is one of the liquid components of said reaction mixture.
Claim 19
Dependent Claim
27 words
A process as claimed in claim 1 wherein there are no more than 12 parts water per 100 parts by weight of polyol in the reaction mixture.
Claim 20
Dependent Claim
13 words
A process as claimed in claim 1 wherein the polyl is polymer polyol.
Claim 21
Dependent Claim
36 words
A process as claimed in claim 1 wherein the polyol is polymer polyol in which the polymer is present in an amount from 1 to 65 weight percent based on the weight of the polymer polyol.
Claim 22
Dependent Claim
15 words
A process as claimed in claim 1 wherein the polyol is a polyalkylene oxide triol.
Claim 23
Dependent Claim
15 words
A process as claimed in claim 1 wherein the polyol is a polyalkylene oxide tetrol.
Claim 24
Dependent Claim
15 words
A process as claimed in claim 1 wherein the polyol is a polyalkylene oxide hexol.
Claim 25
Dependent Claim
16 words
A process as claimed in claim 1 where the polyisocyanate is a mixture of tolylene diisocyanates.
Claim 26
Dependent Claim
16 words
A process as claimed in claim 1 wherein the polyisocyanate is a polymeric polymethylene poly(phenylene isocyanate).
Claim 27
Dependent Claim
13 words
A process as claimed in claim 1 wherein the polyisocyanate is 4,4-diphenylmethylene diisocyanate.
Claim 28
Dependent Claim
21 words
A process as claimed in claim 1 wherein the polyisocyanate is a mixture of 4,4'-diphenylmethylene diisocyanate and a polymethylene poly(phenylene isocyanate).
Claim 29
Dependent Claim
19 words
A process as claimed in claim 1 wherein the reaction mixture contains a catalytic amount of an amine catalyst.
Claim 30
Dependent Claim
40 words
A process as claimed in claim 1 wherein the reaction mixture contains a catalytic amount of an amine catalyst selected from a group consisting of bis(N,N-dimethylaminoethyl)ether, trimethylamine, triethylamine, N-methylmorpholine, dimethylaminoethyl morpholine, N,N,N',N-tetramethylhexanediamine, N-ethyl-morpholine, N,N-dimethylethanolamine, N,N,N'N'-tetramethyl-1, 3-butanediamine, triethanolamine, 1,4-diazabicyclo(2.2.2)octane, pyridine oxide.
Claim 31
Dependent Claim
21 words
A process as claimed in claim 1 wherein the reaction mixture contains a catalytic amount of bis(N,N-di-methylaminoethyl)ether or 1,4-diazabicyclo (2.2.2) octane.
Claim 32
Dependent Claim
30 words
A process as claimed in claim 1 wherein the reaction mixture contains a catalytic amount of a tin, lead or copper salt or a tin, lead or copper organo-metallic compound.
Claim 33
Dependent Claim
16 words
A process as claimed in claim 1 wherein the reaction material contains an auxiliary blowing agent.
Claim 34
Dependent Claim
34 words
A process as claimed in claim 32 wherein the auxiliary blowing agent is a member selected from the group consisting of trichloromonofluoromethane, dichlorodifluoromethane, dichloromonofluoromethane, methylene chloride, trichloromethane, 1,1-dichloro-1-fluoroethane, 1,1,2-trichloro - 1,2,2-triflouroethane, hexafluro-cyclobutane and octafluorocyclobutane.
Claim 35
Dependent Claim
10 words
A polyurethane foam produiced by the process of claim 1.
Claim 36
Dependent Claim
16 words
A polyurethane foam as claimed in claim 34 which is a foam suitable for carpet underlayment.
Claim 37
Dependent Claim
52 words
A composition useful for the production of polyurethane foams comprised of: (1) a polyol having a hydroxyl number from about 10 to about 250, (2) an organic polyisocyanate: (3) water; and (4) an alkenoic acid grafted poly(alkylene oxide) polymer with a number average molecular weight of from about 1000 to about 10,000.
Claim 38
Dependent Claim
52 words
A composition useful for the production of polyurethane foams comprised of: (1) a polyol having a hydroxyl number from about 10 to about 250, (2) an organic polyisocyanate: (3) water; and (4) an alkenoic acid grafted poly(alkylene oxide) polymer with a number average molecular weight of from about 1000 to about 10,000.
Claim 39
Dependent Claim
18 words
The composition of claim 36 wherein the alkenoic acid grafted poly(alkylene oxide) polymer is contained in a diluent.
Claim 40
Dependent Claim
21 words
The composition of claim 37 wherein the diluent is a liquid and is one of the components employed in said composition.
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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) | 1990-10-19 | 1991-04-20 | 1991-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-19 | 1995-04-20 | 1995-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-19 | 1999-04-20 | 1999-10-20 | $7700.00 | Window Closed / Lapsed |