Patent US4374209A successfully refreshed from Google Patents.
US4374209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer-modified polyols useful in polyurethane manufacture
Assignee: Interchem International SA
•
Filing: 1981-04-29
•
Granted: 1983-02-15
•
Expires: 2001-04-29
Abstract
Abstract A polymer-modified polyol is formed by polymerizing an olamine, particularly an alkanolamine, with an organic polyisocyanate in the presence of a polyol. The alkanolamine reacts polyfunctionally with the polyisocyanate to produce polyaddition products. The polyaddition products may constitute a stable dispersion in the polyol and the resulting polymer-modified polyol is particularly useful as a polyol starting material for reaction with a polyisocyanate in the manufacture of polyurethane foam.
Inventors
- 👤 Jeffrey P. Rowlands
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:27
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/409; C08G18/08; C08G18/30; C08G18/32; C08G18/3271; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
49 words
A method of forming a polymer-modified polyol, comprising polymerising a starting material with an organic polyisocyanate in the presence of a polyol with the polyol acting at least predominantly as an unreacted carrier, the starting material being triethanolamine and the triethanolamine reacting at least predominently polyfunctionally with the isocyanate.
Claim 2
Independent Claim
49 words
A method of forming a polymer-modified polyol, comprising polymerising a starting material with an organic polyisocyanate in the presence of a polyol with the polyol acting at least predominantly as an unreacted carrier, the starting material being triethanolamine and the triethanolamine reacting at least predominently polyfunctionally with the isocyanate.
Claim 3
Dependent Claim
61 words
A method according to claim 1, wherein the alkanolamine and the isocyanate are mixed in the molar ratio of about 1/0.5 to 1/1.5 in the presence of a polyether polyol having a molecular weight in the range of 200 to 10,000 and the reacted alkanolamine and polyisocyanate together constitute 1% to 35% by weight based on the weight of the polyol.
Claim 4
Dependent Claim
22 words
A method according to claim 2, wherein the alkanolamine and the isocyanate are reacted in the molar ratio of 1/0.8 to 1/1.1.
Claim 5
Dependent Claim
30 words
A method according to claim 1, wherein the alkanolamine and the isocyanate are reacted in a molar ratio in excess of 1/1.6 in the presence of a chain capping agent.
Claim 6
Dependent Claim
45 words
A method according to claim 1, wherein the total weight of the alkanolamine and the polyisocyanate is greater than 10% based on the weight of the polyol and after polymerisation of the alkanolamine with the isocyanate further polyol is added to dilute the polymer-modified polyol.
Claim 7
Dependent Claim
24 words
A method according to claim 1, wherein a catalyst is mixed with the alkanolamine and the polyisocyanate to catalyse the said polymerisation reaction therebetween.
Claim 8
Dependent Claim
15 words
A method according to claim 6, wherein said catalyst is selected from organometallics and amines.
Claim 9
Dependent Claim
24 words
A polymer-modified polyol comprising a polyol and a polyaddition product resulting from the reaction of triethanolamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 10
Dependent Claim
24 words
A polymer-modified polyol comprising a polyol and a polyaddition product resulting from the reaction of triethanolamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 11
Dependent Claim
12 words
A polymer-modified polyol according to claim 8, which is a stable dispersion.
Claim 12
Dependent Claim
39 words
A polymer-modified polyol according to claim 8, wherein the polyol is a polyether polyol having a molecular weight in the range of 200 to 10,000 and the polyaddition product constitutes 1% to 35% by weight based on the polyol.
Claim 13
Independent Claim
41 words
A method of forming a polyurethane wherein an isocyanate is reacted with a preformed polymer-modified polyol, said polymer-modified polyol comprising a polyol and a polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 14
Independent Claim
41 words
A method of forming a polyurethane wherein an isocyanate is reacted with a preformed polymer-modified polyol, said polymer-modified polyol comprising a polyol and a polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 15
Dependent Claim
18 words
A method according to claim 11, wherein said polymer-modified polyol is in the form of a stable dispersion.
Claim 16
Dependent Claim
20 words
A method according to claim 11, wherein the said polyaddition product is formed using an olamine which is an alkanolamine.
Claim 17
Dependent Claim
15 words
A method according to claim 13, wherein the said polyaddition product is formed using triethanolamine.
Claim 18
Dependent Claim
25 words
A method according to claim 11, wherein the isocyanate which reacts with the polyol is the same as that used in forming the polymer-modified polyol.
Claim 19
Dependent Claim
41 words
A polyurethane foam material formed by the reaction of a polyol and an isocyanate in the presence of a blowing agent and containing a polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 20
Dependent Claim
41 words
A polyurethane foam material formed by the reaction of a polyol and an isocyanate in the presence of a blowing agent and containing a polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 21
Dependent Claim
19 words
A polyurethane according to claim 16, wherein the polyaddition product is formed using an olamine which is an alkanolamine.
Claim 22
Dependent Claim
14 words
A polyurethane according to claim 17, wherein the polyaddition product is formed using triethanolamine.
Claim 23
Independent Claim
55 words
A method of forming a polymer-modified polyol, comprising polymerising a starting material with an organic polyisocyanate in the presence of a polyol containing predominantly primary hydroxy groups with the polyol acting at least predominantly as an unreacted carrier, the starting material being an olamine and the olamine reacting at least predominantly polyfunctionally with the isocyanate.
Claim 24
Independent Claim
55 words
A method of forming a polymer-modified polyol, comprising polymerising a starting material with an organic polyisocyanate in the presence of a polyol containing predominantly primary hydroxy groups with the polyol acting at least predominantly as an unreacted carrier, the starting material being an olamine and the olamine reacting at least predominantly polyfunctionally with the isocyanate.
Claim 25
Dependent Claim
12 words
A method according to claim 19, wherein the olamine is an alkanolamine.
Claim 26
Dependent Claim
11 words
A method according to claim 20, wherein the alkanolamine is triethanolamine.
Claim 27
Dependent Claim
18 words
A method according to claim 19, wherein the olamine reacts with the isocyanate with substantially no water present.
Claim 28
Dependent Claim
24 words
A method according to claim 19, wherein a catalyst is mixed with the alkanolamine and the polyisocyanate to catalyse the said polymerisation reaction therebetween.
Claim 29
Dependent Claim
15 words
A method according to claim 19, wherein said catalyst is selected from organometallics and amines.
Claim 30
Dependent Claim
31 words
A polymer-modified polyol comprising a polyol containing predominantly primary hydroxyl groups and a nonionic polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 31
Dependent Claim
31 words
A polymer-modified polyol comprising a polyol containing predominantly primary hydroxyl groups and a nonionic polyaddition product resulting from the reaction of an olamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 32
Dependent Claim
16 words
A method according to claim 25, wherein said preformed polymer-modified polyol is of a non-ionic nature.
Claim 33
Dependent Claim
26 words
A method according to claim 26, wherein said polyaddition product results from said reaction of said olamine with said organic polyisocyanate with substantially no water present.
Claim 34
Dependent Claim
29 words
A method according to claim 25, wherein said isocyanate is reacted with said preformed polymer-modified polyol in the presence of a blowing agent thereby to produce polyurethane foam material.
Claim 35
Dependent Claim
31 words
A polyurethane formed by the reaction of a polyol and an isocyanate and containing a polyaddition product resulting from the reaction of triethanolamine at least predominantly polyfunctionally with an organic polyisocyanate.
Claim 36
Dependent Claim
31 words
A polyurethane formed by the reaction of a polyol and an isocyanate and containing a polyaddition product resulting from the reaction of triethanolamine at least predominantly polyfunctionally with an organic polyisocyanate.
References Cited (Backward Citations)
US2929800A
Cited
GB924878A
Cited
US3135707A
Cited
US3356650A
Cited
US3360495A
Cited
GB1501172A
Cited
GB1482213A
Cited
GB1453258A
Cited
GB1571184A
Cited
GB1571183A
Cited
GB1553760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |