Patent US4354586A successfully refreshed from Google Patents.
Patent US3876569A successfully refreshed from Google Patents.
US3876569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High resiliency polyurethane foams containing arylamine load bearing additives
Assignee: Lyondell Chemical Technology LP
•
Filing: 1974-02-11
•
Granted: 1975-04-08
•
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 14:28
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.
References Cited (Backward Citations)
US3188302A
Cited
US3194793A
Cited
US3523918A
Cited
US3523464A
Cited
US3523464B1
Cited
US3635851A
Cited
US3563906A
Cited
US3598748A
Cited
US3644235A
Cited
US3738947A
Cited
US3736295A
Cited
US3691265A
Cited
US3729370A
Cited
US3752790A
Cited
US3580869A
Cited
US3826763A
Cited
US3772222A
Cited
US3775350A
Cited
US3823096A
Cited
US3816360A
Cited
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 |