Patent US4113667A successfully refreshed from Google Patents.
US4113667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant polyurethane foam and process for producing the same
Assignee: DKS Co Ltd
•
Filing: 1975-09-25
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Granted: 1978-09-12
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Expires: 1995-09-25
Abstract
Abstract A process for producing a flame resistant polyurethane foam by reacting a reaction mixture comprising a polyetherpolyol or a polyesterpolyol having an active hydrogen atom, a polyisocyanate, water and/or a volatile foaming agent, and a catalyst, in which a specific amine compound shown by the general formula as defined hereinafter in the specification is added to the reaction system, and also the flame resistant polyurethane foam produced by the process.
Inventors
- 👤 Shigeo Mori
- 👤 Takeshi Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:08
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/38; C08G18/3819; C08G18/3838; C08G18/65; C08G18/66
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
70 words
A process for producing a flame resistant soft polyurethane foam comprising reacting a mixture of (a) a polyetherpolyol or a polyesterpolyol, each having at least two active hydrogen atoms, (b) a polyisocyanate, (c) at least one foaming agent, (d) a catalyst and about 0.1 to 5 parts by weight of the polyetherpolyol or polyesterpolyol of an amine component comprising (e) an amine compound selected from the group consisting of ##STR121##
Claim 2
Dependent Claim
70 words
A process for producing a flame resistant soft polyurethane foam comprising reacting a mixture of (a) a polyetherpolyol or a polyesterpolyol, each having at least two active hydrogen atoms, (b) a polyisocyanate, (c) at least one foaming agent, (d) a catalyst and about 0.1 to 5 parts by weight of the polyetherpolyol or polyesterpolyol of an amine component comprising (e) an amine compound selected from the group consisting of ##STR121##
Claim 3
Dependent Claim
23 words
The process as claimed in claim 1, said amine component further comprising (f) an amine compound selected from the group consisting of ##STR122##
Claim 4
Dependent Claim
34 words
The process as claimed in claim 2, said amine component further comprising (a) an amine compound selected from the group consisting of ##STR123## (h) an amine compound selected from the group consisting of ##STR124##
Claim 5
Dependent Claim
33 words
(i) an amine compound selected from the group consisting of ##STR125## (j) an amine compound selected from the group consisting of ##STR126## (k) an amine compound selected from the group consisting of ##STR127##
Claim 6
Dependent Claim
33 words
(i) an amine compound selected from the group consisting of ##STR125## (j) an amine compound selected from the group consisting of ##STR126## (k) an amine compound selected from the group consisting of ##STR127##
Claim 7
Dependent Claim
23 words
The process as claimed in claim 1, said amine component further comprising (g) an amine compound selected from the group consisting of ##STR128##
Claim 8
Dependent Claim
57 words
The process as claimed in claim 4, said amine component further comprising (h) an amine compound selected from the group consisting of ##STR129## (i) an amine compound selected from the group consisting of ##STR130## (j) an amine compound selected from the group consisting of ##STR131## or (k) an amine compound selected from the group consisting of ##STR132##
Claim 9
Dependent Claim
23 words
The process as claimed in claim 1, said amine component further comprising (h) an amine compound selected from the group consisting of ##STR133##
Claim 10
Dependent Claim
45 words
The process as claimed in claim 6, said amine component further comprising (i) an amine compound selected from the group consisting of ##STR134## (j) an amine compound selected from the group consisting of ##STR135## (k) an amine compound selected from the group consisting of ##STR136##
Claim 11
Dependent Claim
23 words
The process as claimed in claim 1, said amine component further comprising (i) an amine compound selected from the group consisting of ##STR137##
Claim 12
Dependent Claim
34 words
The process as claimed in claim 8, said amine component further comprising (j) an amine compound selected from the group consisting of ##STR138## (k) an amine compound selected from the group consisting of ##STR139##
Claim 13
Dependent Claim
23 words
The process as claimed in claim 1, said amine component further comprising (j) an amine compound selected from the group consisting of ##STR140##
Claim 14
Dependent Claim
23 words
The process as claimed in claim 10, said amine component further comprising (k) an amine compound selected from the group consisting of ##STR141##
Claim 15
Dependent Claim
23 words
The process as claimed in claim 1, said amine component further comprising (k) an amine compound selected from the group consisting of ##STR142##
Claim 16
Dependent Claim
44 words
The process as claimed in claim 1, wherein said at least one volatile foaming agent (c) is water and is present in an amount of from about 0.5 to 6 parts by weight per 100 parts by weight of the polyetherpolyol of polyesterpolyol (a).
Claim 17
Dependent Claim
49 words
The process as claimed in claim 1, wherein said at least one foaming agent (c) is a volatile foaming agent other than water and is present in an amount of from about 2 to 70 parts by weight per 100 parts by weight of the polyetherpolyol or polyesterpolyol (a).
Claim 18
Dependent Claim
21 words
The process as claimed in claim 1, wherein said amount of the amine component is 0.3 to 3 parts by weight.
Claim 19
Dependent Claim
21 words
The process as claimed in claim 15, wherein said amount of the amine component is 0.5 to 2 parts by weight.
Claim 20
Dependent Claim
15 words
The process as in claim 1 wherein aid mixture further comprises a phosphorus containing compound.
Claim 21
Dependent Claim
28 words
The process as claimed in claim 17, wherein said phosphorus-containing compound is selected from the group consisting of tris-2,3-dibromopropyl phosphate, tris-chloroethyl phosphate, trisdichloropropyl phosphate, monodichloropropyl-bis-(dibromopropyl)phosphate and triphenyl phosphate.
Claim 22
Dependent Claim
29 words
The process as claimed in claim 17, wherein the amount of said phosphorus-containing compound is less than 0.5% by weight based on the weight of said soft polyurethane foam.
Claim 23
Dependent Claim
14 words
The process as claimed in claim 1, said mixture further comprising a silicone oil.
Claim 24
Dependent Claim
26 words
The process as claimed in claim 20, wherein the polyalkylsiloxane hydrophobic moiety of said silicone oil has a molecular weight ranging from about 2,000 to 5,000.
Claim 25
Dependent Claim
127 words
The process as claimed in claim 20, wherein said silicone oil is represented by the general formula ##STR143## wherein the sum of e + f + g is a mean value of 25 to 80, the e moiety, the f moiety and g moiety being present in the chain in any order and the ratio of the total number of oxygen atoms in the e moiety, the f mmoiety and g moiety to the number of oxygen atoms in the e moiety ranging from 2.3 to 1 to 2.8 to 1; R 15 represents -OR 16 or ##STR144## wherein R 16 represents a saturated hydrocarbon group having less than 10 carbon atoms, a is 3 or 4 and l is a mean value of 6 to 30.
Claim 26
Dependent Claim
29 words
The process as claimed in claim 20, wherein the amount of said silicone oil is less than 2.0% by weight based on the weight of the polyetherpolyol or polyesterpolyol.
Claim 27
Dependent Claim
31 words
The process as claimed in claim 23, wherein the amount of said silicone oil ranges from about 0.3 to 1.2% by weight based on the weight of the polyetherpolyol or polyesterpolyol.
Claim 28
Dependent Claim
14 words
A flame resistant polyurethane foam produced by the process as claimed in claim 1.
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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) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |