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US4360616A
Expired / Lapsed
US
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Flame-retardant polyamide compositions
Assignee: EIDP Inc
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Filing: 1980-12-31
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Granted: 1982-11-23
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Expires: 2000-12-31
Abstract
Abstract A flame-retardant polyamide composition is described which has good arc tracking resistance. The composition is comprised of a polyamide, a selected organic flame-retardant, melamine or derivative, zinc borate or oxide and glass fiber.
Inventors
- 👤 Rolando U. Pagilagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; C08K13/00; C08K13/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
A reinforced, flame-retardant, arc track resistant composition consisting of (a) 40-65 weight percent of composition of a polyamide of film-forming molecular weight, (b) 16-35 weight percent of composition of melamine, melam, melamine cyanurate or a melamine derivative represented by the formula ##STR7## where R and R 1 may be the same or different and represent hydrogen, lower alkyl (alkyl of 1-6 carbons), phenyl, tolyl or halo-phenyl, provided that not all the R and R 1 groups can be hydrogen, (c) 1-7 weight percent of composition selected from the class consisting of a chlorinated compound obtained from condensation of two moles of perchlorocyclopentadiene and one mole of 1,5-cyclooctadiene, or a brominated polystyrene. (d) 1-4.9 weight percent of composition of zinc borate or zinc oxide (e) 5-30 weight percent of composition of glass fibers, the percent amounts of components (a) through (e) totaling 100% with respect to one another.
Claim 2
Dependent Claim
147 words
A reinforced, flame-retardant, arc track resistant composition consisting of (a) 40-65 weight percent of composition of a polyamide of film-forming molecular weight, (b) 16-35 weight percent of composition of melamine, melam, melamine cyanurate or a melamine derivative represented by the formula ##STR7## where R and R 1 may be the same or different and represent hydrogen, lower alkyl (alkyl of 1-6 carbons), phenyl, tolyl or halo-phenyl, provided that not all the R and R 1 groups can be hydrogen, (c) 1-7 weight percent of composition selected from the class consisting of a chlorinated compound obtained from condensation of two moles of perchlorocyclopentadiene and one mole of 1,5-cyclooctadiene, or a brominated polystyrene. (d) 1-4.9 weight percent of composition of zinc borate or zinc oxide (e) 5-30 weight percent of composition of glass fibers, the percent amounts of components (a) through (e) totaling 100% with respect to one another.
Claim 3
Dependent Claim
10 words
The composition of claim 1 wherein component (b) is melamine.
Claim 4
Dependent Claim
25 words
The composition of claim 1 wherein component (c) is the chlorinated compound obtained from condensation of two moles of perchlorocyclopentadiene and one mole of 1,5-cyclooctadiene.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein component (d) is zinc borate.
Claim 6
Dependent Claim
12 words
The composition of claim 3 or 4 wherein component (b) is melamine.
Claim 7
Dependent Claim
27 words
The composition of claims 2 or 4 wherein component (c) is the chlorinated compound obtained from condensation of two moles of perchlorocyclopentadiene and one mole of 1,5-cyclooctadiene.
Claim 8
Dependent Claim
13 words
The composition of claims 2 or 3 wherein component (d) is zinc borate.
Claim 9
Dependent Claim
33 words
The composition of claim 1 wherein component (b) is melamine (c) is the chlorinated compound obtained from condensation of two moles of perchlorocyclopentadiene and one mole of 1,5-cyclooctadiene, and (d) is zinc oxide.
Claim 10
Dependent Claim
16 words
The composition of claim 1, 2, 3 or 4 wherein component (c) is a brominated styrene.
References Cited (Backward Citations)
US3660344A
Cited
US3663495A
Cited
JPS4828187A
Cited
US4105621A
Cited
US4137212A
Cited
JPS53113647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-22 | 1986-05-24 | 1986-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-22 | 1990-05-24 | 1990-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-22 | 1994-05-24 | 1994-11-23 | $7700.00 | Window Closed / Lapsed |