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US3876569A
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High resiliency polyurethane foams containing arylamine load bearing additives
Assignee: Lyondell Chemical Technology LP
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Filing: 1974-02-11
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Granted: 1975-04-08
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Expires: 1994-02-11
Abstract
Abstract Polyurethane foams having enhanced foam load building characterized have been developed by incorporating arylamine load building additives in conventional high resiliency polyurethane foam formulations.
Inventors
- 👤 David C Priest
- 👤 George T Kwiatkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:28
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4027; C08G14/00; C08G14/02; C08G14/04; C08G14/12; C08G18/30; C08G18/38; C08G18/3819; C08G18/54; C08G18/544; C08G18/65; C08G18/6505; C08G18/6523; C08G18/6529; C08G2110/00; C08G2110/0008; C08G2110/0041; C08G2110/005; C08G2110/0083; Y; Y10; Y10S; Y10S521/00; Y10S521/904
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
56 words
A LOAD-BEARING, HIGH RESILIENCY POLYURETHANE FOAM PRODUCED BY INTER-REACTING A MIXTURE OF AT LEAST ONE ORGANIC POLYISOCYANATE AND AT LEAST ONE POLYOL IN THE PRESENCE OF A BLOWING AGENT WITH ABOUT 0.5F TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF POLYOL, OF AN ARYLAMINE HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
56 words
A LOAD-BEARING, HIGH RESILIENCY POLYURETHANE FOAM PRODUCED BY INTER-REACTING A MIXTURE OF AT LEAST ONE ORGANIC POLYISOCYANATE AND AT LEAST ONE POLYOL IN THE PRESENCE OF A BLOWING AGENT WITH ABOUT 0.5F TO ABOUT 20 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF POLYOL, OF AN ARYLAMINE HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF
Claim 3
Dependent Claim
13 words
Product claimed in claim 1 wherein the arylamine is represented by formula (1).
Claim 4
Dependent Claim
13 words
Product claimed in claim 2 wherein f is O and E is chlorine.
Claim 5
Dependent Claim
9 words
Product claimed in claim 3 wherein e is 1.
Claim 6
Dependent Claim
9 words
Product claimed in claim 3 wherein e is 2.
Claim 7
Dependent Claim
9 words
Product claimed in claim 3 wherein e is 3.
Claim 8
Dependent Claim
9 words
Product claimed in claim 3 wherein e is 4.
Claim 9
Dependent Claim
9 words
Product claimed in claim 1 wherein f is 1.
Claim 10
Dependent Claim
9 words
Product claimed in claim 8 wherein e is 1.
Claim 11
Dependent Claim
13 words
Product claimed in claim 1 wherein the arylamine is represented by formula (2).
Claim 12
Dependent Claim
9 words
Product claimed in claim 10 wherein E is chlorine.
Claim 13
Dependent Claim
13 words
Product claimed in claim 11 wherein each of m and n is O.
Claim 14
Dependent Claim
13 words
Product claimed in claim 11 wherein each of m and n is 1.
Claim 15
Dependent Claim
13 words
Product claimed in claim 11 wherein each of m and n is 2.
Claim 16
Dependent Claim
13 words
Product claimed in claim 11 wherein each of m and n is 3.
Claim 17
Dependent Claim
10 words
Product claimed in claim 1 wherein h is about 1.
Claim 18
Dependent Claim
17 words
Product claimed in claim 1 wherein the weight percent of arylamine is about 3 to about 5.
Claim 19
Dependent Claim
12 words
Product claimed in claim 1 wherein the polyol is polypropylene oxide triol.
Claim 20
Dependent Claim
12 words
Product claimed in claim 1 wherein the polyisocyanate is a tolylene diisocyanate.
Claim 21
Dependent Claim
11 words
Product claimed in claim 1 wherein the blowing agent is water.
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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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |