Patent US4696697A successfully refreshed from Google Patents.
US4696697A
Expired / Lapsed
US
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Polishing composition
Assignee: Fujimi Kenmazai Kogyo Co Ltd
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Filing: 1986-02-07
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Granted: 1987-09-29
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Expires: 2006-02-07
Abstract
Abstract A composition for polishing a plastic product, a layer of non-electrolysis nickel plating, an alumite layer or an aluminum product comprises water, a polishing agent of aluminum oxide and a polishing accelerator of nickel sulfate, and is neutral or weak acid.
Inventors
- 👤 Hirohito Kitano
- 👤 Toshiki Oowaki
- 👤 Takashi Baba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:29
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/14; C09G; C09G1/00; C09G1/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
29 words
A polishing composition comprising water, a polishing agent of aluminum oxide and a polishing accelerator of nickel sulfate, said polishing composition being neutral or weak acid in pH measurement.
Claim 2
Dependent Claim
29 words
A polishing composition comprising water, a polishing agent of aluminum oxide and a polishing accelerator of nickel sulfate, said polishing composition being neutral or weak acid in pH measurement.
Claim 3
Dependent Claim
36 words
A polishing composition as set forth in claim 1, wherein the polishing accelerator is contained in an amount of 1-20% by weight of the total composition, and the polishing composition has a pH value of 7-5.
Claim 4
Dependent Claim
45 words
A polishing composition as set forth in claim 2, wherein the polishing agent is contained in an amount of 2-30% by weight of the total composition, and has a mean particle size of 0.7-4 μm and a maximum particle size of 20 μm or less.
Claim 5
Dependent Claim
49 words
A polishing composition as set forth in claim 3, wherein the polishing agent is α-aluminium oxide prepared by calcining granular boehmite at a temperature of 1,100°-1,200° C. for 2 to 3 hours, crushing relatively larger particles into finer particles and separating particles falling within a predetermined particle size distribution.
Claim 6
Dependent Claim
64 words
In a polishing process with a polishing composition applied between a surface of a product and a surface of a polishing pad which is slidable on the surface of the product, the improvement wherein the polishing composition comprises water, a polishing agent of aluminum oxide and a polishing accelerator of nickel sulfate, and said polishing composition is neutral or weak acid in pH measurement.
Claim 7
Dependent Claim
64 words
In a polishing process with a polishing composition applied between a surface of a product and a surface of a polishing pad which is slidable on the surface of the product, the improvement wherein the polishing composition comprises water, a polishing agent of aluminum oxide and a polishing accelerator of nickel sulfate, and said polishing composition is neutral or weak acid in pH measurement.
Claim 8
Dependent Claim
16 words
A polishing process as set forth in claim 5, wherein the product is a plastic product.
Claim 9
Dependent Claim
22 words
A polishing process as set forth in claim 5, wherein the surface of the product is a layer of non-electrolysis nickel plating.
Claim 10
Dependent Claim
19 words
A polishing process as set forth in claim 5, wherein the surface of the product is an alumite layer.
Claim 11
Dependent Claim
16 words
A polishing process as set forth in claim 5, wherein the product is an aluminium product.
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) | 1990-09-28 | 1991-03-30 | 1991-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-28 | 1995-03-30 | 1995-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-28 | 1999-03-30 | 1999-09-29 | $7700.00 | Window Closed / Lapsed |