EP0412518A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Thermoplastic olefins
Assignee: Union Carbide Chemicals and Plastics Technology LLC
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Filing: 1990-08-07
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Granted: —
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Expires: 2010-08-07
Abstract
Abstract A composition useful in the preparation of thermoplastic olefins comprising: (a) isotactic polypropylene; (b) a copolymer of ethylene and propylene grafted with a hydrolyzable silane or a terpolymer of ethylene, propylene, and a hydrolyzable silane; and (c) a silanol condensation catalyst. l
Inventors
- 👤 Mahmoud Rashad Rifi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:03
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/16; C08L23/10; C08L23/12; C08L43/00; C08L43/04; C08L51/00; C08L51/06; C08L2312/00
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
36 words
A composition comprising: (a) isotactic polypropylene; (b) 1) a copolymer of ethylene and propylene grafted with a hydrolyzable silane or 2) a terpolymer of ethylene, propylene, and a hydrolyzable silane; and (c) a silanol condensation catalyst.
Claim 2
Dependent Claim
36 words
A composition comprising: (a) isotactic polypropylene; (b) 1) a copolymer of ethylene and propylene grafted with a hydrolyzable silane or 2) a terpolymer of ethylene, propylene, and a hydrolyzable silane; and (c) a silanol condensation catalyst.
Claim 3
Dependent Claim
15 words
The composition defined in claim 1 wherein the hydrolyzable silane is a vinyl trialkoxy silane.
Claim 4
Dependent Claim
22 words
The composition defined in at least one of the claims 1 to 2 wherein the silanol condensation catalyst is a metal carboxylate.
Claim 5
Dependent Claim
48 words
The composition defined in at least one of the claims 1 to 3 wherein the amount of component (b) 1) or 2) is in the range of about 15 to about 80 percent by weight based on the total weight of components (a) and (b) 1) or 2).
Claim 6
Dependent Claim
43 words
The composition defined in at least one of the claims 1 to 4 wherein the silane in component (b) 1) is present in an amount of about 0.5 percent to about 10 percent by weight based on the weight of component (b) 1).
Claim 7
Dependent Claim
42 words
The composition defined in at least one of the claims 1 to 4 wherein the silane in component (b) 2) is present in an amount of about 5 to about 10 percent by weight based on the weight of component (b) 2).
Claim 8
Dependent Claim
40 words
The composition defined in at least one of the claims 1 to 6 wherein the silanol condensation catalyst is present in an amount of about 0.1 percent to about 0.5 percent by weight based on the weight of the silane.
Claim 9
Dependent Claim
38 words
The composition defined in at least one of the claims 1 to 7 wherein the weight ratio of ethylene to propylene in the component (b) 1) or 2) is in the range of about 1:1 to about 4:1.
Claim 10
Dependent Claim
21 words
The composition defined in at least one of the claims 1 to 8 wherein component (b) 1) or 2) is crosslinked.
Claim 11
Dependent Claim
21 words
The composition defined in claim 1 wherein components (a) and (b) 1) or 2) are blended and component (b) is crosslinked.
Claim 12
Dependent Claim
18 words
An electrical conductor coated with the composition defined in at least one of the claims 1 to 10.
Claim 13
Dependent Claim
18 words
A gasket or hose comprising the composition defined in at least one of the claims 1 to 10.
Claim 14
Dependent Claim
72 words
A composition comprising: (a) isotactic polypropylene; (b) 1) a copolymer of ethylene and propylene grafted with a silane having the following structural formula: CH₂ = CH-(CH2) a -Si(OR)₃ wherein R is an alkyl group having 1 to 10 carbon atoms; each R can be the same or different; and a is an integer from 0 to 10; or 2) a terpolymer of ethylene, propylene, and said silane; and (c) a metal carboxylate.
Claim 15
Dependent Claim
72 words
A composition comprising: (a) isotactic polypropylene; (b) 1) a copolymer of ethylene and propylene grafted with a silane having the following structural formula: CH₂ = CH-(CH2) a -Si(OR)₃ wherein R is an alkyl group having 1 to 10 carbon atoms; each R can be the same or different; and a is an integer from 0 to 10; or 2) a terpolymer of ethylene, propylene, and said silane; and (c) a metal carboxylate.
Claim 16
Dependent Claim
17 words
The composition defined in claim 13 wherein the silane of (b) 1) or 2) is vinyltrimethoxy silane.
Claim 17
Dependent Claim
29 words
A process for the preparation of a thermoplastic olefin comprising admixing the composition defined in at least one of the claims 1 to 14 in the presence of moisture.
Claim 18
Dependent Claim
33 words
The process defined in claim 15 wherein component (b) is 1) a copolymer of ethylene and propylene grafted with a hydrolyzable silane or 2) a terpolymer of ethylene, propylene, and a hydrolyzable silane.
Claim 19
Dependent Claim
22 words
The process defined in at least one of the claims 15 to 16 wherein the silanol condensation catalyst is a metal carboxylate.
Claim 20
Dependent Claim
92 words
The process defined in at least one of the claims 15 to 17 wherein (i) the amount of component (b) is in the range of about 15 to about 80 percent by weight based on the total weight of components (a) and (b); (ii) the weight ratio of ethylene to propylene in component (b) is in the range of about 1:1 to about 4:1; and (iii) the silanol condensation catalyst is present in an amount of about 0.1 percent to about 0.5 percent by weight based on the weight of the silane.
References Cited (Backward Citations)
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