US4664983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester composition, the moldings of the composition and the process for manufacturing of the moldings
Assignee: Toray Industries Inc
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Filing: 1985-01-08
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Granted: 1987-05-12
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Expires: 2005-01-08
Abstract
Abstract A polyester composition according to the subject invention is composed of thermoplastic polyesters and the titanium dioxide and/or aluminum oxide having specific particle diameters. The polyester composition provides the molded articles which display reduced warpage. The polyester composition has high plating characteristic and provide superior metal-plated moldings.
Inventors
- 👤 Kiyokazu Nakamura
- 👤 Kiichi Kometani
- 👤 Toshihide Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/54; C25D5/56; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2053; C23C18/206; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0373; H05K3/00; H05K3/10; H05K3/18; H05K3/181; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
67 words
A metal-plated molding comprising an extrusion molded or injection molded polyester composition comprising 100 parts by weight of thermoplastic polyester and, in a uniform dispersion, about 30 to 100 parts by weight of an oxide having a mean particle diameter of 0.5 to 10 μm, said oxide being selected from the group consisting of titanium dioxide and aluminum oxide and said molding having a metal plated surface.
Claim 2
Dependent Claim
67 words
A metal-plated molding comprising an extrusion molded or injection molded polyester composition comprising 100 parts by weight of thermoplastic polyester and, in a uniform dispersion, about 30 to 100 parts by weight of an oxide having a mean particle diameter of 0.5 to 10 μm, said oxide being selected from the group consisting of titanium dioxide and aluminum oxide and said molding having a metal plated surface.
Claim 3
Dependent Claim
23 words
The metal-plated molding comprising an extrusion molded injection molded polyester composition, as claimed in claim 1, wherein said thermoplastic polyester is poly(alkylene terephthalate).
Claim 4
Dependent Claim
24 words
The metal-plated molding comprising an extrusion molded or injection molded polyester composition, as claimed in claim 2, wherein said poly(alkylene terephthalate) is poly(butylene terephthalate).
Claim 5
Dependent Claim
29 words
The metal-plated molding comprising an extrusion molded or injection molded polyester composition, as claimed in claim 3, wherein said poly(butylene terephthalate) contains metal sulfoisophthalate and/or sulfoterephthalate as copolymerized components.
Claim 6
Dependent Claim
31 words
The metal-plated molding comprising an extrusion molded or injection molded polyester composition, as claimed in claim 1, wherein said titanium dioxide has the mean particle diameters of 1.5 to 6 μm.
Claim 7
Dependent Claim
31 words
The metal-plated molding comprising an extrusion molded or injection molded polyester composition, as claimed in claim 1, wherein said aluminum oxide has the mean particle diameters of 0.7 to 6 μm.
Claim 8
Dependent Claim
33 words
The metal-plated molding comprising an extrusion molded or injection molded polyester composition, as claimed in claim 1, wherein said aliphatic dicarboxylic acid copolymerized polyester has aliphatic diacarboxylic acid and aromatic diacarboxylic acid components.
Claim 9
Dependent Claim
43 words
The metal-plated molding comprising in extrusion molded or injection molded polyester composition, as claimed in claim 1, wherein said polyester elastomer is a block copolymer containing a hard segment of aromatic polyesters and a soft segment of poly(alkylene oxide) glycol and/or aliphatic polyesters.
Claim 10
Dependent Claim
44 words
The metal-plated molding comprising an extrusion molded or injection molded polyester composition, as claimed in claim 2, wherein said olefinic copolymer containing glycidyl groups is a copolymer of the β-olefin having 2 to 10 carbon atoms and glycidyl ester of α,β-ethylenically unsaturated carboxylic acid.
Claim 11
Dependent Claim
52 words
A metal-plated molding comprising an extrusion molded or injection molded polyester composition as claimed in claim 1, further comprising 1 to 100 parts by weight of at least one impact modifier selected from the group consisting of: (i) aliphatic dicarboxylic acid copolymerized polyester, (ii) polyester elastomer, (iii) olefinic copolymer containing glycidyl groups.
Claim 12
Dependent Claim
66 words
A process for manufacutring metal-plated moldings, wherein the extrusion moldings or injection moldings of the polyester composition comprising 100 parts by weight of thermoplastic polyester and about 30 to 100 parts by weight of titanium dioxide and/or aluminum oxide having the mean particle diameters of 0.5 to 10 μm are etched on the surface by using an alkaline solution and then said etched surface is plated.
Claim 13
Dependent Claim
66 words
A process for manufacutring metal-plated moldings, wherein the extrusion moldings or injection moldings of the polyester composition comprising 100 parts by weight of thermoplastic polyester and about 30 to 100 parts by weight of titanium dioxide and/or aluminum oxide having the mean particle diameters of 0.5 to 10 μm are etched on the surface by using an alkaline solution and then said etched surface is plated.
Claim 14
Dependent Claim
21 words
A process for manufacturing metal-plated moldings, as claimed in claim 11, wherein etching is performed after treating by an acidic solution.
Claim 15
Dependent Claim
21 words
A process for manufacturing metal-plated moldings, as claimed in claim 11, wherein etching is performed before treating by an acidic solution.
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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) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |