Patent US4703075A successfully refreshed from Google Patents.
US4703075A
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Resinous compositions having lubricity
Assignee: NTN Engineering Plastics Corp
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Filing: 1986-03-04
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Granted: 1987-10-27
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Expires: 2006-03-04
Abstract
Abstract Resinous compositions having lubricity are proposed which are suited for use as bearing parts. The composition comprises a synthetic resin and one or two kinds of organopolysiloxane. Three-dimensional network of organopolysiloxane keeps low the friction coefficient and the abrasion coefficient, reinforces the substrate, and prevents the decrease of mechanical strength of synthetic resin.
Inventors
- 👤 Masaki Egami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:14
CPC Classifications
C; C08; C08L; C08L101/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A resinous composition having lubricity, comprising 100 parts by weight of a synthetic resin, 0.5 to 20.0 parts by weight of a first organopolysiloxane having glycidyl modified units, each of said glycidyl modified units containing a glycidyl radical, and 0.5 to 20.0 parts by weight of a second organopolysiloxane having modified units, each of said modified units containing at least one radical selected from the group consisting of amino radical, carboxyl radical, alcoholic hydroxyl radical and mercapto radical.
Claim 2
Dependent Claim
78 words
A resinous composition having lubricity, comprising 100 parts by weight of a synthetic resin, 0.5 to 20.0 parts by weight of a first organopolysiloxane having glycidyl modified units, each of said glycidyl modified units containing a glycidyl radical, and 0.5 to 20.0 parts by weight of a second organopolysiloxane having modified units, each of said modified units containing at least one radical selected from the group consisting of amino radical, carboxyl radical, alcoholic hydroxyl radical and mercapto radical.
Claim 3
Dependent Claim
74 words
A resinous composition having lubricity, comprising 100 parts by weight of a synthetic resin, 0.5 to 20.0 parts by weight of a first organopolysiloxane having carboxyl modified units, each of said carboxyl modified units containing a carboxyl radical, and 0.5 to 20.0 parts by weight of a second organopolysiloxane having modified units, each of said modified unit containing at least one radical selected from the group consisting of amino radical and alcoholic hydroxyl radical.
Claim 4
Dependent Claim
74 words
A resinous composition having lubricity, comprising 100 parts by weight of a synthetic resin, 0.5 to 20.0 parts by weight of a first organopolysiloxane having carboxyl modified units, each of said carboxyl modified units containing a carboxyl radical, and 0.5 to 20.0 parts by weight of a second organopolysiloxane having modified units, each of said modified unit containing at least one radical selected from the group consisting of amino radical and alcoholic hydroxyl radical.
Claim 5
Dependent Claim
34 words
The resinous composition of claim 1, comprising 100 parts by weight of the synthetic resin, 1.0 to 15.0 parts by weight of the first organopolysiloxane, and 1.0-15.0 parts by weight of the second organpolysiloxane.
Claim 6
Dependent Claim
37 words
A resinous composition as in claim 2, comprising 100 parts by weight of the synthetic resin, 1.0 to 15.0 parts by weight of the first organopolysiloxane, and 1.0 to 15.0 parts by weight of the second organopolysiloxane.
References Cited (Backward Citations)
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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) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |