US4306035A
Expired / Lapsed
US
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Use of alkoxysilicon compositions as foam stabilizers in high resilience polyurethane foams
Assignee: Witco Corp
•
Filing: 1980-05-30
•
Granted: 1981-12-15
•
Expires: 2000-05-30
Abstract
Abstract A process for manufacturing low density high resilience polyurethane foams utilizing as a foam stabilizer selected low molecular weight alkoxysilicon compositions containing from one to 18 silicon atoms in which the alkoxy-modifying group contains from 5 to 18 carbon atoms; solutions of such alkoxysilicon compositions; and the foams derived from such process.
Inventors
- 👤 Feyyaz O. Baskent
- 👤 James D. Reedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:37
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0061; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; C07F7/18; C07F7/1804; C08J9/0014; C08J9/0042; C08J2375/00; C08J2375/04; C08J2483/00
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
336 words
A process for producing high resilience polyurethane foam having a density no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) as a foam stabilizer, an alkoxysilicon composition selected from the group consisting of: (I) an alkoxysilane monomer having the average formula; ##STR54## wherein Me is a methyl group and R is an alkyl group having from 6 to 18 carbon atoms inclusive; (II) an alkoxysiloxane copolymer having the average formula; ##STR55## wherein Me is a methyl group, R' is an alkyl group having from 7 to 18 carbon atoms inclusive in which the R' groups represent from 15 to 75 weight percent of the alkoxysiloxane copolymer, and n has an average value from one to twelve inclusive; and (III) an alkoxysiloxane copolymer having the average formula; [MeSiO.sub.3/2 ].sub.x [Me.sub.2 SiO].sub.y [O.sub.1/2 R"].sub.z wherein Me is a methyl group, R" is an alkyl group having from 5 to 18 carbon atoms inclusive in which the R" groups represent from 15 to 70 weight percent of the alkoxysiloxane copolymer, x has an average value from one to three inclusive, y has an average value from zero to (18-x) inclusive, and z has an average value from 3 to 5 inclusive.
Claim 2
Dependent Claim
336 words
A process for producing high resilience polyurethane foam having a density no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) as a foam stabilizer, an alkoxysilicon composition selected from the group consisting of: (I) an alkoxysilane monomer having the average formula; ##STR54## wherein Me is a methyl group and R is an alkyl group having from 6 to 18 carbon atoms inclusive; (II) an alkoxysiloxane copolymer having the average formula; ##STR55## wherein Me is a methyl group, R' is an alkyl group having from 7 to 18 carbon atoms inclusive in which the R' groups represent from 15 to 75 weight percent of the alkoxysiloxane copolymer, and n has an average value from one to twelve inclusive; and (III) an alkoxysiloxane copolymer having the average formula; [MeSiO.sub.3/2 ].sub.x [Me.sub.2 SiO].sub.y [O.sub.1/2 R"].sub.z wherein Me is a methyl group, R" is an alkyl group having from 5 to 18 carbon atoms inclusive in which the R" groups represent from 15 to 70 weight percent of the alkoxysiloxane copolymer, x has an average value from one to three inclusive, y has an average value from zero to (18-x) inclusive, and z has an average value from 3 to 5 inclusive.
Claim 3
Dependent Claim
14 words
The high resilience polyurethane foam produced by the process as defined in claim 1.
Claim 4
Dependent Claim
190 words
A process for producing high resilience polyurethane foam having a density no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer comprising an alkoxysilane monomer having the average composition, ##STR56## wherein Me is a methyl group and R is an alkyl group having from 6 to 18 carbon atoms inclusive.
Claim 5
Dependent Claim
190 words
A process for producing high resilience polyurethane foam having a density no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer comprising an alkoxysilane monomer having the average composition, ##STR56## wherein Me is a methyl group and R is an alkyl group having from 6 to 18 carbon atoms inclusive.
Claim 6
Dependent Claim
14 words
The high resilience polyurethane foam produced by the process as defined in claim 3.
Claim 7
Dependent Claim
215 words
A process for producing high resilience polyurethane foam having a density of no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer comprising an alkoxysiloxane copolymer having the average composition ##STR57## wherein Me is a methyl group, R' is an alkyl group having from 7 to 18 carbon atoms inclusive, the R' groups represent from 15 to 75 weight percent of the alkoxysiloxane copolymer, and n has an average value from one to 12 inclusive.
Claim 8
Dependent Claim
215 words
A process for producing high resilience polyurethane foam having a density of no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer comprising an alkoxysiloxane copolymer having the average composition ##STR57## wherein Me is a methyl group, R' is an alkyl group having from 7 to 18 carbon atoms inclusive, the R' groups represent from 15 to 75 weight percent of the alkoxysiloxane copolymer, and n has an average value from one to 12 inclusive.
Claim 9
Dependent Claim
14 words
The high resilience polyurethane foam produced by the process as defined in claim 5.
Claim 10
Dependent Claim
210 words
A process for producing high resilience polyurethane foam having a density of no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer comprising an alkoxysiloxane copolymer having the average composition, [MeSiO.sub.3/2 ].sub.x [Me.sub.2 SiO].sub.y [O.sub.1/2 R"].sub.z wherein Me is a methyl group, R" is an alkyl group having from 5 to 18 carbon atoms inclusive in which the R" groups represent from 15 to 70 weight percent of the alkoxysiloxane.
Claim 11
Dependent Claim
210 words
A process for producing high resilience polyurethane foam having a density of no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate, said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer comprising an alkoxysiloxane copolymer having the average composition, [MeSiO.sub.3/2 ].sub.x [Me.sub.2 SiO].sub.y [O.sub.1/2 R"].sub.z wherein Me is a methyl group, R" is an alkyl group having from 5 to 18 carbon atoms inclusive in which the R" groups represent from 15 to 70 weight percent of the alkoxysiloxane.
Claim 12
Dependent Claim
14 words
The high resilience polyurethane foam produced by the process as defined in claim 7.
Claim 13
Dependent Claim
215 words
A composition consisting essentially of a minor amount of an alkoxysilicon composition selected from the group consisting of: (1) an alkoxysilane monomer having the average formula, ##STR58## wherein Me is a methyl group and R is an alkyl group having from 6 to 18 carbon atoms inclusive; (II) an alkoxysiloxane copolymer having the average formula, ##STR59## where Me is a methyl group, R' is an alkyl group having from 7 to 18 carbon atoms inclusive in which the R' groups represent from 15 to 75 weight percent of the alkoxysiloxane copolymer, and n has an average value from one to 12 inclusive; and (III) an alkoxysiloxane copolymer having the average formula, [MeSIO.sub.3/2 ].sub.x [Me.sub.2 SiO].sub.y [O.sub.1/2 R"].sub.z wherein Me is a methyl group, R" is an alkyl group having from 5 to 18 carbon atoms inclusive in which the R" groups represent from 15 to 70 weight percent of the alkoxysiloxane copolymer, x has an average value from one to 3inclusive, y has an average value from zero to (18-x) inclusive, and z has an average value from 3 to 5 inclusive; and a major amount of a solvent therefor, said solvent being selected from the group consisting of polyether triols, polyether diols and polyether mono-ols, trimethylolpropane, 1,2,6-hexanetriol, ethylene glycol, butanol, and or nonylphenol starters.
Claim 14
Dependent Claim
215 words
A composition consisting essentially of a minor amount of an alkoxysilicon composition selected from the group consisting of: (1) an alkoxysilane monomer having the average formula, ##STR58## wherein Me is a methyl group and R is an alkyl group having from 6 to 18 carbon atoms inclusive; (II) an alkoxysiloxane copolymer having the average formula, ##STR59## where Me is a methyl group, R' is an alkyl group having from 7 to 18 carbon atoms inclusive in which the R' groups represent from 15 to 75 weight percent of the alkoxysiloxane copolymer, and n has an average value from one to 12 inclusive; and (III) an alkoxysiloxane copolymer having the average formula, [MeSIO.sub.3/2 ].sub.x [Me.sub.2 SiO].sub.y [O.sub.1/2 R"].sub.z wherein Me is a methyl group, R" is an alkyl group having from 5 to 18 carbon atoms inclusive in which the R" groups represent from 15 to 70 weight percent of the alkoxysiloxane copolymer, x has an average value from one to 3inclusive, y has an average value from zero to (18-x) inclusive, and z has an average value from 3 to 5 inclusive; and a major amount of a solvent therefor, said solvent being selected from the group consisting of polyether triols, polyether diols and polyether mono-ols, trimethylolpropane, 1,2,6-hexanetriol, ethylene glycol, butanol, and or nonylphenol starters.
Claim 15
Dependent Claim
38 words
A composition as claimed in claim 9 wherein the alkoxysilicon composition is present in the amount of from one to 20 weight percent and the solvent is present in the amount of from 80 to 99 weight percent.
Claim 16
Dependent Claim
175 words
A process for producing high resilience polyurethane foam having a density no greater than 2.0 pounds per cubic foot which comprises simultaneously reacting and foaming a reaction mixture containing: (a) an organic polyol selected from the group consisting of (i) a polyether triol containing at least 40 mole percent primary hydroxyl groups and having a molecular weight from about 2,000 to about 8,000 and (ii) a mixture of said polyether triol and other polyethers having an average of at least two hydroxyl groups, said polyether triol of said mixture amounting to at least 40 weight percent of the total polyol content; (b) a polyisocyanate said organic polyol and said polyisocyanate being present in the mixture in a major amount and in a relative amount required to produce the polyurethane foam; (c) a blowing agent in a minor amount sufficient to foam the reaction mixture; (d) a catalytic amount of catalysts for the production of polyurethane foam; and (e) a foam stabilizer consisting essentially of an alkoxysilicon composition and a solvent as defined in claim 17.
Claim 17
Dependent Claim
14 words
The high resilience polyurethane foam produced by the process as defined in claim 11.
Claim 18
Dependent Claim
19 words
A process as defined in claim 1 wherein R, R' and R" have an molecular weight greater than 150.
Claim 19
Dependent Claim
11 words
A process as defined in claim 1 wherein R" is pentyl.
Claim 20
Dependent Claim
13 words
A process as defined in claim 1 wherein R and R" are hexyl.
Claim 21
Dependent Claim
12 words
A process as defined in claim 1 wherein R' is 2-ethyl hexyl.
Claim 22
Dependent Claim
14 words
A process as defined in claim 1 wherein R, R' and R" are heptyl.
Claim 23
Dependent Claim
14 words
A process as defined in claim 1 wherein R, R' and R" are octyl.
Claim 24
Dependent Claim
11 words
A process as defined in claim 1 wherein R is nonyl.
Claim 25
Dependent Claim
11 words
A process as defined in claim 1 wherein R is decyl.
Claim 26
Dependent Claim
11 words
A process as defined in claim 1 wherein R is undecyl.
Claim 27
Dependent Claim
11 words
A process as defined in claim 1 wherein R is dodecyl.
Claim 28
Dependent Claim
11 words
A process as defined in claim 1 wherein R is tridecyl.
Claim 29
Dependent Claim
11 words
A process as defined in claim 1 wherein R is tetradecyl.
Claim 30
Dependent Claim
11 words
A process as defined in claim 1 wherein R is pentadecyl.
Claim 31
Dependent Claim
11 words
A process as defined in claim 1 wherein R is hexadecyl.
Claim 32
Dependent Claim
21 words
A foam as claimed in claim 2 wherein the foam has a density no greater than 1.75 pounds per cubic foot.
Claim 33
Dependent Claim
21 words
A foam as claimed in claim 2 wherein the foam has a density no greater than 1.05 pounds per cubic foot.
Claim 34
Dependent Claim
21 words
A foam as claimed in claim 4 wherein the foam has a density no greater than 1.75 pounds per cubic foot.
Claim 35
Dependent Claim
21 words
A foam as claimed in claim 4 wherein the foam has a density no greater than 1.05 pounds per cubic foot.
Claim 36
Dependent Claim
21 words
A foam as claimed in claim 6 wherein the foam has a density no greater than 1.75 pounds per cubic foot
Claim 37
Dependent Claim
21 words
A foam as claimed in claim 6 wherein the foam has a density no greater than 1.05 pounds per cubic foot.
Claim 38
Dependent Claim
21 words
A foam as claimed in claim 8 wherein the foam has a density no greater than 1.75 pounds per cubic foot.
Claim 39
Dependent Claim
21 words
A foam as claimed in claim 8 wherein the foam has a density no greater than 1.05 pounds per cubic foot.
Claim 40
Dependent Claim
21 words
A foam as claimed in claim 12 wherein the foam has a density no greater than 1.75 pounds per cubic foot.
Claim 41
Dependent Claim
21 words
A foam as claimed in claim 12 wherein the form has a density no greater than 1.05 pounds per cubic foot.
References Cited (Backward Citations)
US2415389A
Cited
US2909549A
Cited
GB795335A
Cited
US2947772A
Cited
US3050477A
Cited
US3741917A
Cited
US3839384A
Cited
US3905924A
Cited
US4042540A
Cited
US4039490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |