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US4801639A
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Flame-retardant olefinic resin composition
Assignee: Sumitomo Bakelite Co Ltd
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Filing: 1987-07-09
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Granted: 1989-01-31
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Expires: 2007-07-09
Abstract
Abstract A flame-retardant olefinic resin composition comprising (A) 100 parts by weight of a mixed resin consisting of an olefinic resin and a silane-grafted polymer obtained by grafting a silane to said olefinic resin, (B) 50 to 300 parts by weight of a hydrated metal compound, and (C) 0.1 to 30 parts by weight of a dicarboxylic acid or dicarboxylic acid anhydride derivative.
Inventors
- 👤 Kazuo Hoshi
- 👤 Yasuo Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:07
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/06; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08K5/092; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
A flame-retardant olefinic resin composition comprising (A) 100 parts by weight of a mixed resin consisting of an olefinic resin and a silane-grafted polymer obtained by grafting a silane to said olefinic resin, the amount of the silane-grafted polymer being at least 2% by weight in the mixed resin, (b) 50 to 300 parts by weight of a hydrated metal compound, and (c) 0.1 to 30 parts by weight of a dicarboxylic acid or dicarboxylic acid anhydride derivative selected from the group consisting of carbocyclic dicarboxylic acids consisting of phthalic acid, isophthalic acid and terephthalic acid and the anhydrides thereof; dibutyltin maleate and dioctyltin maleate; ternary copolymers of ethylene, maleic acid or the anhydride thereof and ethyl acrylate or acrylic acid; polyolefin resins modified with maleic acid or the anhydride thereof; and polybutadiene modified with maleic acid or the anhydride thereof.
Claim 2
Dependent Claim
141 words
A flame-retardant olefinic resin composition comprising (A) 100 parts by weight of a mixed resin consisting of an olefinic resin and a silane-grafted polymer obtained by grafting a silane to said olefinic resin, the amount of the silane-grafted polymer being at least 2% by weight in the mixed resin, (b) 50 to 300 parts by weight of a hydrated metal compound, and (c) 0.1 to 30 parts by weight of a dicarboxylic acid or dicarboxylic acid anhydride derivative selected from the group consisting of carbocyclic dicarboxylic acids consisting of phthalic acid, isophthalic acid and terephthalic acid and the anhydrides thereof; dibutyltin maleate and dioctyltin maleate; ternary copolymers of ethylene, maleic acid or the anhydride thereof and ethyl acrylate or acrylic acid; polyolefin resins modified with maleic acid or the anhydride thereof; and polybutadiene modified with maleic acid or the anhydride thereof.
Claim 3
Dependent Claim
45 words
A flame-retardant olefinic resin composition according to claim 1, wherein the olefinic resin is selected from the group consisting of low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-alpha-olefin copolymers, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene rubber, and ethylene-propylene-diene rubbers.
Claim 4
Dependent Claim
71 words
A flame-retardant olefinic resin composition according to claim 1, wherein the silane-grafted polymer is obtained by reacting the olefinic resin with an organic silane rpresented by the general formula RR'SiY 2 wherein R is a monovalent olefinically unsaturated hydrocarbon group; Y is a hydrolyzable organic group; and R' is a monovalent hydrocarbon group other than unsaturated aliphatic hydrocarbon groups or is same as Y in the presence of a free-radical-generating compound.
Claim 5
Dependent Claim
79 words
A flame-retardant olefinic resin composition according to claim 1, wherein the hydrated metal compound is a compound having a decomposition-starting temperature of 150° to 450° C. and represented by the general formula M m O n .XH 2 O wherein M is a metal; m and n are each an integer of 1 or more determined by the valency of the metal; and X is the number of molecules of bound water or a double salt containing said compound.
Claim 6
Dependent Claim
30 words
A flame-retardant olefinic resin composition according to claim 4, wherein the M is selected from the metals of groups IA, IIA, IIB, IIIA, IVA and IVB of the periodic table.
Claim 7
Dependent Claim
24 words
A flame-retardant olefinic resin composition according to claim 5, wherein the M is selected from the metals of group IIA of the periodic table.
Claim 8
Dependent Claim
24 words
A flame-retardant olefinic resin composition according to claim 5, wherein the M is selected from the metals of group IIIA of the periodic table.
Claim 9
Dependent Claim
18 words
A flame-retardant olefinic resin composition according to claim 4, wherein the hydrated metal compound is magnesium oxide monohydrate.
Claim 10
Dependent Claim
18 words
A flame-retardant olefinic resin composition according to claim 4, wherein the hydrated metal compound is aluminum oxide trihydrate.
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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) | 1992-01-31 | 1992-08-01 | 1993-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-31 | 1996-08-01 | 1997-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-31 | 2000-08-01 | 2001-01-31 | $7700.00 | Window Closed / Lapsed |