US4446283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinkable polyethylene resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1982-06-09
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Granted: 1984-05-01
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Expires: 2002-06-09
Abstract
Abstract A novel crosslinkable polyethylene resin composition which can be readily crosslinked rapidly is provided. The composition comprises a copolymer consisting essentially of ethylene and a specific unsaturated silane compound having a (meth)acrylate group as a copolymerizable group and a methoxy group as a hydrolyzable group, and an effective amount of a silanol condensation catalyst.
Inventors
- 👤 Shuhei Doi
- 👤 Tsutomu Isaka
- 👤 Shinichiro Iida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:50
CPC Classifications
C; C08; C08L; C08L43/00; C08L43/04; C08F; C08F10/00; C08F255/00; C08F255/02; C08F210/00; C08F210/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A crosslinkable polyethylene resin composition which comprises: a component (A) which is a copolymer consisting essentially of ethylene and an unsaturated silane compound represented by the following formula, ##STR4## wherein, R is hydrogen or CH 3 and which has been prepared by copolymerization of monomers consisting essentially of ethylene and the unsaturated silane compound under a pressure of 500 to 4,000 kg./cm. 2 at a temperature of 100° to 400° C. in the presence of a radical initiator; and a component (B) which is a silanol condensation catalyst, the quantity thereof being in the range of 0.001 to 10% by weight of the total weight of the components (A) and (B).
Claim 2
Dependent Claim
111 words
A crosslinkable polyethylene resin composition which comprises: a component (A) which is a copolymer consisting essentially of ethylene and an unsaturated silane compound represented by the following formula, ##STR4## wherein, R is hydrogen or CH 3 and which has been prepared by copolymerization of monomers consisting essentially of ethylene and the unsaturated silane compound under a pressure of 500 to 4,000 kg./cm. 2 at a temperature of 100° to 400° C. in the presence of a radical initiator; and a component (B) which is a silanol condensation catalyst, the quantity thereof being in the range of 0.001 to 10% by weight of the total weight of the components (A) and (B).
Claim 3
Dependent Claim
20 words
The composition as claimed in claim 1 in which the unsaturated silane compound is represented by the following formula, ##STR5##
Claim 4
Dependent Claim
50 words
The composition as claimed in claim 1 in which the component (A) is produced from the unsaturated silane compound which does not contain more than 200 ppm of an acid of a formula, ##STR6## where R is hydrogen or CH 3 , and more than 400 ppm of chlorine atom.
Claim 5
Dependent Claim
31 words
The composition as claimed in claim 1 in which the content of the unsaturated silane compound copolymerized in the component (A) is 0.001 to 15% by weight of the component (A).
Claim 6
Dependent Claim
32 words
The composition as claimed in claim 1 in which said component (A) is prepared under a pressure of 1,000 to 4,000 kg./cm. 2 and at a temperature of 150° to 350° C.
Claim 7
Dependent Claim
31 words
The composition as claimed in claim 1 in which the content of the unsaturated silane compound copolymerized in the component (A) is 0.1 to 5% by weight of the component (A).
Claim 8
Dependent Claim
31 words
The composition as claimed in claim 1 in which the content of the unsaturated silane compound copolymerized in the component (A) is 0.05 to 2% by weight of the component (A).
Claim 9
Dependent Claim
27 words
The composition as claimed in claim 1 in which the quantity of said silanol condensation catalyst is 0.01 to 5% by weight of components (A) and (B).
Claim 10
Dependent Claim
27 words
The composition as claimed in claim 1 in which the quantity of said silanol condensation catalyst is 0.01 to 1% by weight of components (A) and (B).
References Cited (Backward Citations)
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Cited
US3764589A
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US3884891A
Cited
US4035540A
Cited
US4297310A
Cited
US4297310B1
Cited
JPS56126213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |