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US4130715A Expired / Lapsed US ⏱️ 0.0 years remaining

Tricyclic trisaminomethanes

Assignee: EIDP Inc
•
Filing: 1978-01-26
•
Granted: 1978-12-19
•
Expires: 1998-01-26
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Abstract

Abstract Polycyclic trisaminomethanes of the formula ##STR1## in which R 1 and R 2 , alike or different, are alkylene; R 3 and R 4 , alike or different, are alkyl, cycloalkyl, or aralkyl; or R 3 and R 4 are joined together to form an alkylene group which may be interrupted by (1) a ##STR2## group where Q is hydrogen or alkyl, or (2) ONE OR TWO --O-- linkages; and There are at least 2 carbons between each two hetero atoms in the outer ring system, Are useful as initiators for the polymerization of pivalolactone. These polycyclic trisaminomethanes are prepared by reacting a polyamine of the formula R.sup.3 NHR.sup.1 NHR.sup.2 NHR.sup.4 with a dialkoxy(dialkylamino)methane of the formula (RO).sub.2 CHNR.sub.2 ' in which R and R', alike or different, are alkyl.

Inventors

  • 👤 Thomas J. Atkins

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 13:08
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 97 words
A tricyclic trisaminomethane of the formula ##STR26## in which R 8 is a divalent group selected from the group consisting of alkylene of 2 to 6 carbons containing 2 carbons in the backbone, ##STR27## where R 5 and R 6 , alike or different, are alkylene of 2 to 6 carbons containing 2 carbons in the backbone, and Q is hydrogen or alkyl of 1 to 18 carbons, and --R.sup.5 -O-R.sup.6 -- where R 5 and R 6 , alike or different, are alkylene of 2 to 6 carbons containing 2 to 3 carbons in the backbone.
Claim 2
Dependent Claim 97 words
A tricyclic trisaminomethane of the formula ##STR26## in which R 8 is a divalent group selected from the group consisting of alkylene of 2 to 6 carbons containing 2 carbons in the backbone, ##STR27## where R 5 and R 6 , alike or different, are alkylene of 2 to 6 carbons containing 2 carbons in the backbone, and Q is hydrogen or alkyl of 1 to 18 carbons, and --R.sup.5 -O-R.sup.6 -- where R 5 and R 6 , alike or different, are alkylene of 2 to 6 carbons containing 2 to 3 carbons in the backbone.
Claim 3
Dependent Claim 10 words
The tricyclic trisaminomethane of claim 1 of the formula ##STR28##
Claim 4
Dependent Claim 24 words
The tricyclic trisaminomethane of claim 2 in which R 5 and R 6 , alike or different, are alkylene of 2 to 3 carbons.
Claim 5
Dependent Claim 10 words
The tricyclic trisaminomethane of claim 3 of the formula ##STR29##
Claim 6
Dependent Claim 10 words
The tricyclic trisaminomethane of claim 1 of the formula ##STR30##
Claim 7
Dependent Claim 35 words
The tricyclic trisaminomethane of claim 5 in which R 5 and R 6 , alike or different, are alkylene of 2 to 3 carbons, and Q is H or alkyl of 1 to 8 carbons.
Claim 8
Dependent Claim 10 words
The tricyclic trisaminomethane of claim 6 of the formula ##STR31##
Claim 9
Dependent Claim 10 words
The tricyclic trisaminomethane of claim 6 of the formula ##STR32##
Claim 10
Dependent Claim 10 words
The tricyclic trisaminomethane of claim 1 of the formula ##STR33##

References Cited (Backward Citations)

US2393826A Cited
US2816896A Cited
US3932451A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-12-18 1982-06-19 1982-12-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-12-18 1986-06-19 1986-12-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-12-18 1990-06-19 1990-12-19 $7700.00 Window Closed / Lapsed

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