US4732939A
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US
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Flame-retardant olefinic resin compositions
Assignee: Sumitomo Bakelite Co Ltd
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Filing: 1986-12-30
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Granted: 1988-03-22
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Expires: 2006-12-30
Abstract
Abstract A flame-retardant olefinic resin composition comprising (1) 100 parts by weight of an ethylenic polymer resin mixture having an average density of 0.890 to 0.915 g/cm 3 , of (a) an ethylenic polymer consisting mainly of an ethylene-alpha-olefin copolymer and (b) a silane-grafted polymer obtained by grafting a silane to at least one component of said ethylenic polymer (a), and (2) 50 to 300 parts by weight of a hydrated metal compound.
Inventors
- 👤 Kazuo Hoshi
- 👤 Yasuo Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:40
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08F; C08F255/00; C08F255/02; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08L51/00; C08L51/06; C08K9/00; C08K9/04; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035; C08L23/0846; C08L23/0869; C08L23/16
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
152 words
A flame-retardant olefinic resin composition comprising the product of reacting component ( 1) with component (2) essentially in the absence of both of the following: a free-radical generator and a catalytic accelerator; wherein components (1) and (2) are as follows: (1) 100 parts by weight of an ethylenic polymer resin mixture having an average density of 0.890 to 0.915 g/cm 3 , of: (a) an ethylenic polymer consisting mainly of an ethylene-alpha-olefin copolymer, and (b) at least 2% based on the total weight of (a) and (b) of a silane-grafted polymer obtained by grafting a silane to at least one component of said ethylenic polymer (a), and (2) 50 to 300 parts by weight of a hydrated metal compound whereby hydrolytic condensation occurs between said hydrated metal compound and said silane grafted polymer to form siloxane linkages between the metal of said hydrated metal compound and silanol groups of said silane-grafted polymer.
Claim 2
Dependent Claim
152 words
A flame-retardant olefinic resin composition comprising the product of reacting component ( 1) with component (2) essentially in the absence of both of the following: a free-radical generator and a catalytic accelerator; wherein components (1) and (2) are as follows: (1) 100 parts by weight of an ethylenic polymer resin mixture having an average density of 0.890 to 0.915 g/cm 3 , of: (a) an ethylenic polymer consisting mainly of an ethylene-alpha-olefin copolymer, and (b) at least 2% based on the total weight of (a) and (b) of a silane-grafted polymer obtained by grafting a silane to at least one component of said ethylenic polymer (a), and (2) 50 to 300 parts by weight of a hydrated metal compound whereby hydrolytic condensation occurs between said hydrated metal compound and said silane grafted polymer to form siloxane linkages between the metal of said hydrated metal compound and silanol groups of said silane-grafted polymer.
Claim 3
Dependent Claim
20 words
A flame-retardant olefinic resin composition according to claim 1, wherein the alpha-olefin is propylene, butene-1, pentene-1, 4-methylpentene-1, hexene or octene.
Claim 4
Dependent Claim
25 words
A flame-retardant olefinic resin composition according to claim 2, wherein the ethylene-alpha-olefin copolymer is a linear low density polyethylene or a very low density polyethylene.
Claim 5
Dependent Claim
77 words
A flame-retardant olefinic resin composition according to claim 1, wherein the silane-grafted polymer is obtained by reacting at least one component of said ethylenic polymer (a) with an organic silane represented 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 6
Dependent Claim
80 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 7
Dependent Claim
36 words
A flame-retardant olefinic resin composition according to claim 5, wherein the hydrated metal compound has been subjected to surface treatment with at least one silane coupling agent, silicone derivative, fatty acid or fatty acid metal salt.
Claim 8
Dependent Claim
53 words
A flame-retardant olefinic resin composition according to claim 6, wherein the silane coupling agent is represented by the general formula RR'SiY 2 wherein R is an organic functional 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.
Claim 9
Dependent Claim
28 words
A flame-retardant olefinic resin composition according to claim 6, wherein the silicone derivative is modified organopolysiloxane obtained by substituting a part of dimethyl polysiloxane with a modifier group.
Claim 10
Dependent Claim
39 words
A flame-retardant olefinic resin composition according to claim 6, wherein the fatty acid is a monobasic carboxylic acid represented by the general formula RCOOH wherein R has a saturated or unsaturated chain structure of 3 to 40 carbon atoms.
Claim 11
Dependent Claim
69 words
A flame-retardant olefinic resin composition according to claim 6, wherein the fatty acid metal salt is an alkali metal salt of a monobasic carboxylic acid represented by the general formula RCOOH wherein R has a saturated or unsaturated chain structure of 3 to 40 carbon atoms and is represented by the general formula RCOOM wherein R has the same definition as above and M is an alkali metal atom.
Claim 12
Dependent Claim
30 words
A flame-retardant olefinic resin composition according to claim 5, wherein the M is selected from the metals of groups IA, IIA, IIB, IIIA, IVA and IVB of the periodic table.
Claim 13
Dependent Claim
24 words
A flame-retardant olefinic resin composition according to claim 11, wherein the M is selected from the metals of group IIA of the periodic table.
Claim 14
Dependent Claim
24 words
A flame-retardant olefinic resin composition according to claim 11, wherein the M is selected from the metals of group IIIA of the periodic table.
Claim 15
Dependent Claim
18 words
A flame-retardant olefinic resin composition according to claim 5, wherein the hydrated metal compound is magnesium oxide dihydrate.
Claim 16
Dependent Claim
18 words
A flame-retardant olefinic resin composition according to claim 5, wherein the hydrated metal compound is aluminum oxide trihydrate.
Claim 17
Dependent Claim
21 words
The flame-retardant composition of claim 1, wherein said components (1) and (2) are reacted by kneading component (2) into component (1).
Claim 18
Dependent Claim
20 words
The flame-retardant composition of claim 1, wherein said components (1) and (2) are reacted in the absence of external water.
Claim 19
Dependent Claim
25 words
The flame-retardant composition of claim 1 wherein components (1) and (2) are reacted in the absence of both a free-radical generator and a catalytic accelerator.
Claim 20
Dependent Claim
21 words
The flame-retardant olefinic resin composition of claim 18, wherein components (1) and (2) are reacted in the absence of external water.
References Cited (Backward Citations)
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