US4622352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low smoke modified polypropylene insulation compositions
Assignee: Kraton Polymers US LLC
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Filing: 1985-12-30
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Granted: 1986-11-11
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Expires: 2005-12-30
Abstract
Abstract This invention relates to a resin composition comprising functionalized polypropylene, functionalized low molecular weight polypropylene wax, a hydrogenated mono alkylene-conjugated diene block copolymer, oil, and a filler which can be blended to form a self-extinguishing, low smoke and halogen free insulation composition which exhibits high ultimate elongation and is relatively easy to process.
Inventors
- 👤 Lie K. Djiauw
- 👤 Ronald D. Icenogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 00:26
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/44; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/0008; C08K5/0016; C08L; C08L51/00; C08L51/06; C08L53/00; C08L53/02; C08L53/025; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A flame retardant insulation composition comprising: (a) 5-40 percent by weight of a hydrogenated monoalkyarene (A)-conjugated diene (B) block copolymer containing at least two A blocks and at least one B block; (b) 1-20 percent by weight of a plasticizer; (c) 1-40 percent by weight of functionalized polypropylene; (d) 0.25-10 percent by weight of a functionalized low molecular weight polypropylene wax; and (e) 10-85 percent by weight of a hydrated inorganic filler.
Claim 2
Dependent Claim
72 words
A flame retardant insulation composition comprising: (a) 5-40 percent by weight of a hydrogenated monoalkyarene (A)-conjugated diene (B) block copolymer containing at least two A blocks and at least one B block; (b) 1-20 percent by weight of a plasticizer; (c) 1-40 percent by weight of functionalized polypropylene; (d) 0.25-10 percent by weight of a functionalized low molecular weight polypropylene wax; and (e) 10-85 percent by weight of a hydrated inorganic filler.
Claim 3
Dependent Claim
17 words
The composition of claim 1 wherein the block copolymer is a hydrogenated styrene butadiene styrene block copolymer.
Claim 4
Dependent Claim
13 words
The composition of claim 1 wherein the functionalized polypropylene is maleic anhydride functionalized.
Claim 5
Dependent Claim
22 words
The composition of claim 1 wherein the functionalized low molecular weight polypropylene wax is maleic anhydride functionalized low molecular weight polypropylene wax.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the platicizer is a mineral oil.
Claim 7
Dependent Claim
11 words
The composition of claim 1 wherein the filler is alumina trihydrate.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein the filler is Mg(OH) 2 .
Claim 9
Dependent Claim
15 words
The composition of claim 1 wherein the filler is surface coated with a coupling agent.
Claim 10
Dependent Claim
26 words
The composition of claim 7 wherein the coupling agent is selected from the group consisting of fatty acid metal salts, maleates, silanes, titanates and zirco aluminates.
Claim 11
Dependent Claim
43 words
The composition of claim 1 comprising about 15 to 20 weight percent (a), about 4 to 8 weight percent (b), about 4 to 8 weight percent (c), about 0.05 to 5 weight percent (d) and about 63 to 75 weight percent of (e).
Claim 12
Dependent Claim
44 words
A flame retardant insulation composition comprising a hydrogenated styrene-butadiene-styrene block copolymer, a maleic anhydride functionalized polypropylene, a maleic anhydride functionalized low molecular weight polypropylene wax, an oil plasticizer and a hydrated magnesium hydroxide filler which has been surface treated with an oleate coupling agent.
Claim 13
Dependent Claim
44 words
A flame retardant insulation composition comprising a hydrogenated styrene-butadiene-styrene block copolymer, a maleic anhydride functionalized polypropylene, a maleic anhydride functionalized low molecular weight polypropylene wax, an oil plasticizer and a hydrated magnesium hydroxide filler which has been surface treated with an oleate coupling agent.
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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) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |