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US4061697A Expired / Lapsed US ⏱️ 0.0 years remaining

Phosphorus containing flame retarding agents which are reactive with isocyanates

Assignee: Bayer AG
•
Filing: 1975-12-04
•
Granted: 1977-12-06
•
Expires: 1995-12-04
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Abstract

Abstract This invention relates to novel flame retarding agents and processes in which they are used in the production of polyurethanes. These compounds are represented by the general formula: ##STR1## wherein: A and B, which are identical or different, represent optionally branched C 1 -C 17 -alkyl groups or --OR groups wherein R represents an optionally branched C 1 -C 8 -alkyl group, and X represents hydrogen, halogen, an optionally branched C 1 -C 8 alkyl group, a C 6 -C 12 aryl or aralkyl group, NH 2 , CF 3 , CN, COOR', SO 3 R', ##STR2## wherein: R' represents hydrogen or an optionally branched alkyl or cycloalkyl group having 1-10 C atoms and R" represents an optionally branched alkyl or cycloalkyl group having 1-10 C atoms.

Inventors

  • 👤 Hans Hubner
  • 👤 Johannes Blahak
  • 👤 Hans-Joachim Meiners

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 18:51
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4021; C07F9/50; C07F9/53; C07F9/5325; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/3889

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 115 words
Flame retarding agents represented by the general formula ##STR9## wherein A and B, either both represent --OR groups wherein R represents an optionally branched C 1 -C 8 alkyl group, or one represents a --OR group as defined above and the other represents an optionally branched C 1 -C 17 alkyl group, and X represents hydrogen, halogen, an optionally branched C 1 -C 8 alkyl group, a C 6 -C 12 aryl or aralkyl group, NH 2 , CF 3 , CN, COOR , ##STR10## wherein: R' represents hydrogen or an optionally branched alkyl or cycloalkyl group having 1-10 C atoms and R" represents an optionally branched alkyl or cycloalkyl group having 1-10 C atoms.
Claim 2
Dependent Claim 115 words
Flame retarding agents represented by the general formula ##STR9## wherein A and B, either both represent --OR groups wherein R represents an optionally branched C 1 -C 8 alkyl group, or one represents a --OR group as defined above and the other represents an optionally branched C 1 -C 17 alkyl group, and X represents hydrogen, halogen, an optionally branched C 1 -C 8 alkyl group, a C 6 -C 12 aryl or aralkyl group, NH 2 , CF 3 , CN, COOR , ##STR10## wherein: R' represents hydrogen or an optionally branched alkyl or cycloalkyl group having 1-10 C atoms and R" represents an optionally branched alkyl or cycloalkyl group having 1-10 C atoms.
Claim 3
Dependent Claim 51 words
The polyamines of claim 1, wherein A and B represent an --OR group in which: R represents an optionally branched C 1 -C 4 alkyl group, and X represents hydrogen, chlorine, CH 3 , NH 2 , or COOR' wherein: R' represents an optionally branched C 1 -C 4 alkyl group.
Claim 4
Dependent Claim 9 words
The compound of claim 2, of the formula: ##STR11##
Claim 5
Dependent Claim 9 words
The compound of claim 2, of the formula: ##STR12##
Claim 6
Dependent Claim 9 words
The compound of claim 2, of the formula: ##STR13##
Claim 7
Dependent Claim 9 words
The compound of claim 2, of the formula: ##STR14##

References Cited (Backward Citations)

US2596660A Cited
DE2022228A1 Cited
US3974243A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-12-05 1981-06-06 1981-12-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-12-05 1985-06-06 1985-12-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-12-05 1989-06-06 1989-12-06 $7700.00 Window Closed / Lapsed

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