Patent US4339343A successfully refreshed from Google Patents.
US4339343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel process and product
Assignee: Dow Chemical Co
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Filing: 1980-11-03
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Granted: 1982-07-13
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Expires: 2000-11-03
Abstract
Abstract Disclosed are novel polyol blends comprising from about 20 percent to about 85 percent by weight of said blend of an amine diol, or mixture of amine diols selected from the formula ##STR1## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, each R 1 is independently selected from the group consisting of hydrogen or methyl, x and y each independently have an average value from about 4 to about 15 inclusive; and from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol characterized by a molecular weight of from about 60 to about 1000. The polyol blends are miscible with fluorocarbon blowing agents and water and other adjuvants including trimerization catalysts. The novel blends are particularly useful in an improved process for the preparation of polyisocyanurate foams. The foams are characterized by high reaction exotherms making such foams particularly suited to the preparation of polyisocyanurate foam laminates.
Inventors
- 👤 Charles E. Koehler
- 👤 Thomas R. McClellan
- 👤 Pat L. Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:47
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/40; C08G18/4009; C08G18/4018; C08G18/48; C08G18/50; C08G18/5021; C08G2115/00; C08G2115/02; C08G2350/00; Y; Y10; Y10S; Y10S521/00; Y10S521/902
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
105 words
A polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said blend of an amine diol, or mixture of amine diols selected from the formula ##STR3## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, each R 1 is independently selected from the group consisting of hydrogen and methyl, x and y each independently have an average value between about 4 and about 15 inclusive; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol characterized by a molecular weight of from about 60 to about 1000.
Claim 2
Dependent Claim
105 words
A polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said blend of an amine diol, or mixture of amine diols selected from the formula ##STR3## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, each R 1 is independently selected from the group consisting of hydrogen and methyl, x and y each independently have an average value between about 4 and about 15 inclusive; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl polyol characterized by a molecular weight of from about 60 to about 1000.
Claim 3
Dependent Claim
29 words
A miscible polyol blend comprising at least about 25 percent by weight of a fluorocarbon blowing agent and the balance being a polyol blend set forth in claim 1.
Claim 4
Dependent Claim
36 words
A polyol blend comprising from about 1 percent to about 6 percent by weight of water and from about 94 percent to about 99 percent by weight of the polyol blend set forth in claim 1.
Claim 5
Dependent Claim
91 words
A polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said blend of an amine diol, or mixture of amine diols selected from the formula ##STR4## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, and x and y each independently have an average value between about 4 and about 15 inclusive; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl diol having a molecular weight of from about 60 to about 1000.
Claim 6
Dependent Claim
91 words
A polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said blend of an amine diol, or mixture of amine diols selected from the formula ##STR4## wherein R is an aliphatic radical having from 8 to 18 carbon atoms, inclusive, and x and y each independently have an average value between about 4 and about 15 inclusive; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl diol having a molecular weight of from about 60 to about 1000.
Claim 7
Dependent Claim
29 words
A miscible polyol blend comprising at least about 25 percent by weight of a fluorocarbon blowing agent and the balance being a polyol blend set forth in claim 4.
Claim 8
Dependent Claim
24 words
A polyol blend according to claim 4 wherein the primary hydroxyl diol (ii) has a molecular weight of from about 60 to about 800.
Claim 9
Dependent Claim
65 words
A polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said blend of the ethoxylated cocoamine diol mixture obtained from the reaction of about 15 moles of ethylene oxide with cocoamine; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl diol having a molecular weight of from about 60 to about 800.
Claim 10
Dependent Claim
65 words
A polyol blend comprising (i) from about 20 percent to about 85 percent by weight of said blend of the ethoxylated cocoamine diol mixture obtained from the reaction of about 15 moles of ethylene oxide with cocoamine; and (ii) from about 15 percent to about 80 percent by weight of a primary hydroxyl diol having a molecular weight of from about 60 to about 800.
Claim 11
Dependent Claim
16 words
A polyol blend according to claim 7 wherein the primary hydroxyl diol (ii) is diethylene glycol.
Claim 12
Dependent Claim
30 words
A polyol blend according to claim 7 wherein the primary hydroxyl diol (ii) is a polyoxydiethylene adipate glutarate polyester diol having a molecular weight from about 400 to about 600.
Claim 13
Dependent Claim
58 words
A polyol blend according to claim 7 wherein the primary hydroxyl diol (ii) comprises a mixture of from about 30 percent to about 50 percent by weight of diethylene glycol and from about 50 percent to about 70 percent by weight of a polyoxydiethylene adipate glutarate polyester diol having a molecular weight from about 400 to about 600.
Claim 14
Dependent Claim
36 words
A miscible polyol blend comprising at least about 25 percent by weight of a fluorocarbon blowing agent and the balance being a polyol blend set forth in any one of claims 7, 8, 9, or 10.
Claim 15
Dependent Claim
38 words
A polyol blend comprising from about 2 to about 20 percent by weight of an isocyanate trimerization catalyst and from about 80 to about 98 percent by weight of the polyol blend according to claim 2 or 3.
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) | 1985-07-12 | 1986-01-11 | 1986-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-12 | 1990-01-11 | 1990-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-12 | 1994-01-11 | 1994-07-13 | $7700.00 | Window Closed / Lapsed |