US4201705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intumescent flame retardant polyolefin compositions
Assignee: Great Lakes Chemical Corp
•
Filing: 1978-08-28
•
Granted: 1980-05-06
•
Expires: 1998-08-28
Abstract
Abstract Polyolefin compositions comprising a polyolefin and a flame retarding amount of the pentate salt of an amino-s-triazine are intumescent and self-extinguishing and non-dripping.
Inventors
- 👤 Yuval Halpern
- 👤 Clifton T. Fleenor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:33
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/42; C07D251/46; C07D251/54; C09; C09D; C09D5/00; C09D5/18; C09D5/185; Y; Y10; Y10S; Y10S521/00; Y10S521/907
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
30 words
Polyolefin compositions comprising a polyolefin and a flame retarding amount of an intumescent additive selected from the group consisting of melammonium pentate, the pentate salt of ammelide, the mixtures thereof.
Claim 2
Dependent Claim
30 words
Polyolefin compositions comprising a polyolefin and a flame retarding amount of an intumescent additive selected from the group consisting of melammonium pentate, the pentate salt of ammelide, the mixtures thereof.
Claim 3
Dependent Claim
25 words
The composition of claim 1 wherein the intumescent additive is present in from about 20 to about 50 percent by weight of the total composition.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein the polyolefin is selected from the group consisting of polypropylene, polyethylene and copolymers thereof.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein said additive is melammonium pentate.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein said additive is the pentate salt of ammelide.
Claim 7
Independent Claim
44 words
A method for rendering polyolefins intumescent and self-extinguishing consisting of compounding therewith from about 20 to about 50 percent by weight based on final composition of an additive selected from the group consisting of melammonium pentate, the pentate salt of ammelide and mixtures thereof.
Claim 8
Independent Claim
44 words
A method for rendering polyolefins intumescent and self-extinguishing consisting of compounding therewith from about 20 to about 50 percent by weight based on final composition of an additive selected from the group consisting of melammonium pentate, the pentate salt of ammelide and mixtures thereof.
Claim 9
Dependent Claim
61 words
Polyolefin compositions comprising a polyolefin and from about 20 to about 50 percent by weight, based on final composition, of the substantially water-insoluble product produced by heating under reflux conditions a mixture of an amino-s-triazine selected from the group consisting of melamine, ammelide and mixtures thereof, and a dichloropentate, in a molar ratio of about 2:1 in the presence of water.
Claim 10
Dependent Claim
61 words
Polyolefin compositions comprising a polyolefin and from about 20 to about 50 percent by weight, based on final composition, of the substantially water-insoluble product produced by heating under reflux conditions a mixture of an amino-s-triazine selected from the group consisting of melamine, ammelide and mixtures thereof, and a dichloropentate, in a molar ratio of about 2:1 in the presence of water.
References Cited (Backward Citations)
US3090799A
Cited
US3192243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-05-06 | 1983-11-05 | 1984-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-06 | 1987-11-05 | 1988-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-06 | 1991-11-05 | 1992-05-06 | $7700.00 | Window Closed / Lapsed |