Patent US4544679A successfully refreshed from Google Patents.
US4544679A
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US
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Polyol blend and polyisocyanurate foam produced therefrom
Assignee: Bayer Corp
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Filing: 1985-02-21
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Granted: 1985-10-01
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Expires: 2005-02-21
Abstract
Abstract The present invention is directed to a polyol blend comprising: (a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: <IMAGE> wherein each R may be the same or different and represents a radical of the formula: <IMAGE> where R'' represents H or CH3 with the proviso that both R''s cannot be CH3, and y represents a number of from 1 to 5, wherein R' represents an aromatic radical having from 6 to 12 carbon atoms, and wherein x represents a number of from 0 to 5, (b) from about 2 to about 40 percent by weight of an organic compound containing from 3 to 8 hydroxyl groups and being selected from the group consisting of (i) compounds having OH numbers of from about 250 to about 1830 and being free of carboxylic acid ester groups, (ii) compounds having OH numbers of from about 150 to about 1000 and containing at least one carboxylic acid ester group, and (iii) mixtures thereof, (c) from about 5 to about 30 percent by weight of a condensation product formed from 1 mole of a phenol and from 4 to 15 moles of ethylene oxide, and (d) from 0 to about 40 percent by weight of at least one diol of the structure: <IMAGE> where R'' and y are as defined above, and to an isocyanurate foam prepared therefrom.
Inventors
- 👤 Richard B. Tideswell
- 👤 Neil H. Nodelman
- 👤 Barry A. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:41
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3203; C08G18/3221; C08G18/08; C08G18/09; C08G18/092; C08G18/2805; C08G18/2815; C08G18/283; C08G18/40; C08G18/4009; C08G18/4018; C08G18/42; C08G18/4244; C08G18/4247; C08G18/65; C08G18/66; C08G18/6633; C08G18/6637; C08G18/664; C08G18/6644; C08G2101/00; C08G2110/00; C08G2110/0025; C08G2110/0041; C08G2110/005; C08G2115/00; C08G2115/02; C08G2170/00; C08G2170/60; Y; Y10; Y10S; Y10S521/00; Y10S521/902; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/31504; Y10T428/31547
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
234 words
A polyol blend comprising: (a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: ##STR10## wherein each R may be the same or different and represents a radical of the formula: ##STR11## where R" represents H or CH 3 with the proviso that both R"s cannot be CH 3 , and y represents a number of from 1 to 5, wherein R' represents an aromatic radical having from 6 to 12 carbon atoms, and wherein x represents a number of from 0 to 5, (b) from about 2 to about 40 percent by weight of an organic compound containing from 3 to 8 hydroxyl groups and being selected from the group consisting of (i) compounds having OH numbers of from about 250 to about 1830 and being free of carboxylic acid ester groups, (ii) compounds having OH numbers of from about 150 to about 1000 and containing at least one carboxylic acid ester group, and (iii) mixtures thereof, (c) from about 5 to about 30 percent by weight of a condensation product formed from 1 mole of a phenol and from 4 to 15 moles of ethylene oxide, and (d) from 0 to about 40 percent by weight of at least one diol of the structure: ##STR12## where R" and y are as defined above.
Claim 2
Dependent Claim
234 words
A polyol blend comprising: (a) from about 30 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: ##STR10## wherein each R may be the same or different and represents a radical of the formula: ##STR11## where R" represents H or CH 3 with the proviso that both R"s cannot be CH 3 , and y represents a number of from 1 to 5, wherein R' represents an aromatic radical having from 6 to 12 carbon atoms, and wherein x represents a number of from 0 to 5, (b) from about 2 to about 40 percent by weight of an organic compound containing from 3 to 8 hydroxyl groups and being selected from the group consisting of (i) compounds having OH numbers of from about 250 to about 1830 and being free of carboxylic acid ester groups, (ii) compounds having OH numbers of from about 150 to about 1000 and containing at least one carboxylic acid ester group, and (iii) mixtures thereof, (c) from about 5 to about 30 percent by weight of a condensation product formed from 1 mole of a phenol and from 4 to 15 moles of ethylene oxide, and (d) from 0 to about 40 percent by weight of at least one diol of the structure: ##STR12## where R" and y are as defined above.
Claim 3
Dependent Claim
21 words
The blend of claim 1 wherein the amount of component (a) is from about 35 to about 75 percent by weight.
Claim 4
Dependent Claim
20 words
The blend of claim 1 wherein the hydroxyl number of said polyester diol is from about 100 to about 400.
Claim 5
Dependent Claim
94 words
The blend of claim 3 wherein said polyester diol is derived from 1 mole of an aromatic dicarboxylic acid anhydride and from 1.5 to 4 moles of a glycol mixture, with said mixture comprising (i) from 25 to 50 mole percent of one or more of the following: propylene glycol, dipropylene glycol, tripropylene glycol, tetrapropylene glycol and pentrapropylene glycol, and (ii) from 50 to 75 mole percent of one or more of the following: ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and pentaethylene glycol, the sum of said mole percents equalling 100 percent.
Claim 6
Dependent Claim
12 words
The blend of claim 4 wherein said acid anhydride is phthalic anhydride.
Claim 7
Dependent Claim
74 words
The blend of claim 3 wherein said polyester diol is the reaction product of (i) a glycol selected from the group consisting of propylene glycol, dipropylene glycol, tripropylene glycol, tetrapropylene glycol, pentapropylene glycol, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol and mixtures thereof and (ii) a material selected from the group consisting of (a) polyethylene, polypropylene and/or polybutylene terephthalate, (b) dimethyl terephthalate, and (c) mixtures of dimethyl terephthalate and biphenyl esters.
Claim 8
Dependent Claim
21 words
The blend of claim 1 wherein the amount of component (b) is from about 5 to about 30 percent by weight.
Claim 9
Dependent Claim
21 words
The blend of claim 1 wherein the amount of component (c) is from about 5 to about 20 percent by weight.
Claim 10
Dependent Claim
28 words
The blend of claim 1 wherein component (c) is the condensation product formed from 1 mole of a phenol and from 7 to 12 moles of ethylene oxide.
Claim 11
Dependent Claim
10 words
The blend of claim 1 wherein said phenol is nonylphenol.
Claim 12
Dependent Claim
21 words
The blend of claim 1 wherein the amount of component (d) is from about 5 to about 30 percent by weight.
Claim 13
Dependent Claim
54 words
The blend of claim 1 wherein the amounts of components are as follows: (a) from about 35 to about 75 percent by weight, (b) from about 5 to about 30 percent by weight, (c) from about 5 to about 20 percent by weight, and (d) from about 5 to about 30 percent by weight.
Claim 14
Dependent Claim
288 words
A polyisocyanurate/polyurethane foam prepared by reacting (A) a polyol blend comprising: (a) from about 20 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: ##STR13## wherein each R may be the same or different and represents a radical of the formula: ##STR14## where R" represents H or CH 3 with the proviso that both R"s cannot be CH 3 , and y represents a number of from 1 to 5, wherein R' represents an aromatic radical having from 6 to 12 carbon atoms, and wherein x represents a number of from 0 to 5, (b) from about 2 to about 40 percent by weight of an organic compound containing from 3 to 8 hydroxyl groups and being selected from the group consisting of (i) compounds having OH numbers of from about 250 to about 1830 and being free of carboxylic acid ester groups, (ii) compounds having OH numbers of from about 150 to about 1000 and containing at least one carboxylic acid ester group, and (iii) mixtures thereof, (c) from about 5 to about 30 percent by weight of a condensation product formed from 1 mole of a phenol and from 4 to 15 moles of ethylene oxide, and (d) from 0 to about 40 percent by weight of at least one diol of the structure: ##STR15## where R" and y are as defined above, and (B) a polyphenyl polymethylene polyisocyanate having a viscosity of from about 100 to about 2500 mPa.s at 25° C., in the presence of a catalyst and a blowing agent, the amounts of components being such that the isocyanate index is from about 140 to about 500.
Claim 15
Dependent Claim
288 words
A polyisocyanurate/polyurethane foam prepared by reacting (A) a polyol blend comprising: (a) from about 20 to about 90 percent by weight of a polyester diol having an OH number of from about 50 to about 500 and having the structure: ##STR13## wherein each R may be the same or different and represents a radical of the formula: ##STR14## where R" represents H or CH 3 with the proviso that both R"s cannot be CH 3 , and y represents a number of from 1 to 5, wherein R' represents an aromatic radical having from 6 to 12 carbon atoms, and wherein x represents a number of from 0 to 5, (b) from about 2 to about 40 percent by weight of an organic compound containing from 3 to 8 hydroxyl groups and being selected from the group consisting of (i) compounds having OH numbers of from about 250 to about 1830 and being free of carboxylic acid ester groups, (ii) compounds having OH numbers of from about 150 to about 1000 and containing at least one carboxylic acid ester group, and (iii) mixtures thereof, (c) from about 5 to about 30 percent by weight of a condensation product formed from 1 mole of a phenol and from 4 to 15 moles of ethylene oxide, and (d) from 0 to about 40 percent by weight of at least one diol of the structure: ##STR15## where R" and y are as defined above, and (B) a polyphenyl polymethylene polyisocyanate having a viscosity of from about 100 to about 2500 mPa.s at 25° C., in the presence of a catalyst and a blowing agent, the amounts of components being such that the isocyanate index is from about 140 to about 500.
Claim 16
Dependent Claim
15 words
The foam of claim 13 wherein said index is from about 140 to about 300.
Claim 17
Dependent Claim
22 words
The foam of claim 13 wherein the viscosity of said isocyanate is from about 400 to about 2500 mPa.s at 25° C.
Claim 18
Dependent Claim
19 words
The foam of claim 15 wherein said viscosity is from about 500 to about 1000 mPa.s at 25° C.
References Cited (Backward Citations)
US3799898A
Cited
US4039487A
Cited
US4246365A
Cited
US4459334A
Cited
US4444916A
Cited
US4444915A
Cited
US4469821A
Cited
US4485196A
Cited
US4496625A
Cited
US4476251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-30 | 1989-04-01 | 1989-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-30 | 1993-04-01 | 1993-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-30 | 1997-04-01 | 1997-10-01 | $7700.00 | Window Closed / Lapsed |