US5834535A
Expired / Lapsed
US
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Moldable intumescent polyethylene and chlorinated polyethylene compositions
Assignee: Motors Liquidation Co
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Filing: 1996-12-22
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Granted: 1998-11-10
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Expires: 2016-12-22
Abstract
Abstract An intumescent thermoplastic elastomer molding composition is disclosed that includes high density polyethylene with chlorinated polyethylene and/or silicone rubber; a heat stabilizer for the thermoplastic elastomer material and an intumescent and fire-resistant additive for the thermoplastic elastomer, whereby moldings prepared from such mixture have good physical properties over a substantial range of ambient temperatures and display a resistance to flame and heat as characterized by the Intumescence Efficiency test of this specification.
Inventors
- 👤 Ismat Ali Abu-Isa
- 👤 Craig Bryant Jaynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:11
CPC Classifications
C; C09; C09K; C09K21/00; C09K21/14; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2201/00; C08L2201/02; C08L23/26; C08L23/28; C08L23/286; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
An intumescent thermoplastic molding which is the molded product of a blended mixture initially comprising on the basis of 100 parts by weight blended mixture: 15 to 25 parts high density polyethylene, 27 to 33 parts chlorinated polyethylene, 5to 10 parts chlorowax, 7 to 16 parts of at least one of ammonium dihydrogen phosphate and ammonium polyphosphate, 9 to 17 parts of a least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 3 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 1 to 3 parts antimony oxide, 5 to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 2
Dependent Claim
122 words
An intumescent thermoplastic molding which is the molded product of a blended mixture initially comprising on the basis of 100 parts by weight blended mixture: 15 to 25 parts high density polyethylene, 27 to 33 parts chlorinated polyethylene, 5to 10 parts chlorowax, 7 to 16 parts of at least one of ammonium dihydrogen phosphate and ammonium polyphosphate, 9 to 17 parts of a least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 3 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 1 to 3 parts antimony oxide, 5 to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 3
Dependent Claim
124 words
An intumescent thermoplastic molding which is the molded product of a blended mixture initially comprising on the basis of 100 parts by weight of blended mixture: 18 to 23 parts high density polyethylene, 24 to 30 parts chlorinated polyethylene, 5 to 20 parts silicone rubber, 5 to 10 parts chlorowax, 5 to 10 parts of at least one of ammonium dihydrogen phosphate and ammonium phosphate, 14 to 20 parts of at least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 4 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 5 to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 4
Dependent Claim
124 words
An intumescent thermoplastic molding which is the molded product of a blended mixture initially comprising on the basis of 100 parts by weight of blended mixture: 18 to 23 parts high density polyethylene, 24 to 30 parts chlorinated polyethylene, 5 to 20 parts silicone rubber, 5 to 10 parts chlorowax, 5 to 10 parts of at least one of ammonium dihydrogen phosphate and ammonium phosphate, 14 to 20 parts of at least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 4 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 5 to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 5
Dependent Claim
120 words
A moldable mixture for making an intumescent thermoplastic molding, said mixture comprising on basis of a total of 100 parts by weight: 15 to 25 parts high density polyethylene, 27 to 33 parts chlorinated polyethylene, 5 to 10 parts chlorowax, 7 to 16 parts of a least one of ammonium dihydrogen phosphate and ammonium polyphosphate, 9 to 17 parts of at least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 3 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 1 to 3 parts antimony oxide, 5 to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 6
Dependent Claim
120 words
A moldable mixture for making an intumescent thermoplastic molding, said mixture comprising on basis of a total of 100 parts by weight: 15 to 25 parts high density polyethylene, 27 to 33 parts chlorinated polyethylene, 5 to 10 parts chlorowax, 7 to 16 parts of a least one of ammonium dihydrogen phosphate and ammonium polyphosphate, 9 to 17 parts of at least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 3 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 1 to 3 parts antimony oxide, 5 to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 7
Dependent Claim
123 words
A moldable mixture for making an intumescent thermoplastic molding, said mixture comprising on the basis of a total of 100 parts by weight: 18 to 23 parts high density polyethylene, 24 to 30 parts chlorinated polyethylene, 5 to 20 parts silicone rubber, 5 to 10 parts chlorowax, 5 to 10 parts of gas-generating additives comprising at least one of ammonium dihydrogen phosphate and ammonium phosphate, 14 to 20 parts of at least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 4 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 5to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 8
Dependent Claim
123 words
A moldable mixture for making an intumescent thermoplastic molding, said mixture comprising on the basis of a total of 100 parts by weight: 18 to 23 parts high density polyethylene, 24 to 30 parts chlorinated polyethylene, 5 to 20 parts silicone rubber, 5 to 10 parts chlorowax, 5 to 10 parts of gas-generating additives comprising at least one of ammonium dihydrogen phosphate and ammonium phosphate, 14 to 20 parts of at least one of hydrated aluminum oxide and hydrated magnesium hydroxide, 4 to 10 parts of a char former selected from the group consisting of carbohydrates and polyhydric alcohols, 5to 10 parts of a filler selected from the group consisting of glass fibers and mica particles, and an anti-oxidant for said polymeric composition.
Claim 9
Dependent Claim
19 words
An intumescent thermoplastic molding as recited in any of claim 1 in which the molding is a foamed molding.
Claim 10
Dependent Claim
25 words
A moldable mixture for an intumescent thermoplastic molding as recited in any of claims 3 or 4 in which the molding is a foamed molding.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-11-09 | 2002-05-11 | 2002-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-11-09 | 2006-05-11 | 2006-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-11-09 | 2010-05-11 | 2010-11-10 | $7700.00 | Window Closed / Lapsed |