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US4320214A
Expired / Lapsed
US
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Method of making silane-modified ethylene-type resin
Assignee: Sekisui Chemical Co Ltd
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Filing: 1978-12-14
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Granted: 1982-03-16
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Expires: 1998-12-14
Abstract
Abstract Zinc oxide is used during manufacture of silane-modified ethylene-type resin so that the resulting material changes little with the passage of time.
Inventors
- 👤 Hiroshi Harayama
- 👤 Ken Shinkai
- 👤 Hiroshi Takahashi
- 👤 Masahiro Mizusako
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:34
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
That method of making silane-modified ethylene-type resin with good moldability which method comprises melt-kneading a mixture consisting essentially of an alkoxy-silane compound having at least one unsaturated radical, 2.5 dimethyl 2.5 di (t-butyl-peroxy) hexane, and an ethylene-type resin selected from the group consisting of low density polyethylene, high density polyethylene, and copolymers having ethylene as a principal component, and including in said mixture an amount of zinc oxide no later than the time during which said mixture is in the molten state during said melt-kneading step.
Claim 2
Dependent Claim
86 words
That method of making silane-modified ethylene-type resin with good moldability which method comprises melt-kneading a mixture consisting essentially of an alkoxy-silane compound having at least one unsaturated radical, 2.5 dimethyl 2.5 di (t-butyl-peroxy) hexane, and an ethylene-type resin selected from the group consisting of low density polyethylene, high density polyethylene, and copolymers having ethylene as a principal component, and including in said mixture an amount of zinc oxide no later than the time during which said mixture is in the molten state during said melt-kneading step.
Claim 3
Dependent Claim
48 words
A method according to claim 1, wherein the content of zinc oxide is 50 parts by weight or less for each 100 parts by weight of ethylene-type resin, and at the same time it is 10-500 parts by weight for each 100 parts by weight of alkoxy-silane compound.
Claim 4
Dependent Claim
53 words
Silane-modified ethylene-type resin with good moldability comprising a mixture consisting essentially of an alkoxy-silane compound having at least one unsaturated radical, 2.5 dimethyl 2.5 di (t-butyl-peroxy) hexane an ethylene-type resin selected from the group consisting of low density polyethylene, high density polyethylene, and copolymers having ethylene as a principal component, and zinc oxide.
Claim 5
Dependent Claim
53 words
Silane-modified ethylene-type resin with good moldability comprising a mixture consisting essentially of an alkoxy-silane compound having at least one unsaturated radical, 2.5 dimethyl 2.5 di (t-butyl-peroxy) hexane an ethylene-type resin selected from the group consisting of low density polyethylene, high density polyethylene, and copolymers having ethylene as a principal component, and zinc oxide.
Claim 6
Dependent Claim
47 words
Resin according to claim 3, wherein the content of zinc oxide is 50 parts by weight or less for each 100 parts by weight of ethylene-type resin, and at the same time it is 10-500 parts by weight for each 100 parts by weight of alkoxy-silane compound.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |