Patent US5530674A successfully refreshed from Google Patents.
Patent US4908225A successfully refreshed from Google Patents.
US4908225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of a resin powder composition for electrostatic coating
Assignee: Hodogaya Chemical Co Ltd
•
Filing: 1989-02-27
•
Granted: 1990-03-13
•
Expires: 2009-02-27
Abstract
Abstract Use of a resin powder composition for electrostatic coating, wherein said resin powder composition comprises (1) a thermosetting or thermoplastic resin and (2) an electric charge-increasing agent incorporated in the resin.
Inventors
- 👤 Isao Niimura
- 👤 Hideo Nagasaka
- 👤 Manabu Takeuchi
- 👤 Toshiyuki Nita
- 👤 Susumu Suzuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:07
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/03; C09D5/033; C09D5/034
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
In method for electrostatic coating, which comprises electrostatically coating a surface with a resin powder composition, wherein said composition comprises a thermosetting or thermoplastic resin the improvement comprising incorporating into said resin, an electric charge-increasing agent selected from the group consisting of a phthalocyanine compound, an anthraquinone compound, a metal compound of an organic carboxylic acid and an alkyl onium salt.
Claim 2
Dependent Claim
61 words
In method for electrostatic coating, which comprises electrostatically coating a surface with a resin powder composition, wherein said composition comprises a thermosetting or thermoplastic resin the improvement comprising incorporating into said resin, an electric charge-increasing agent selected from the group consisting of a phthalocyanine compound, an anthraquinone compound, a metal compound of an organic carboxylic acid and an alkyl onium salt.
Claim 3
Dependent Claim
27 words
The method according to claim 1, wherein the electric charge-increasing agent is incorporated in an amount of from 0.01 to 20% by weight relative to the resin.
Claim 4
Dependent Claim
21 words
The method according to claim 1, wherein the resin powder composition has a particle size of from 30 to 250 μm.
Claim 5
Dependent Claim
21 words
The method according to claim 1, wherein the thermosetting resin is an epoxy resin, a polyester resin or an acrylic resin.
Claim 6
Dependent Claim
34 words
The method according to claim 1, wherein the thermoplastic resin is a vinyl chloride resin, a polyamide resin, a cellulose resin, a polyolefin resin, a polyethylene resin, a polyester resin or a nylon resin.
References Cited (Backward Citations)
FR2170215A1
Cited
DE2429065A1
Cited
US4248744A
Cited
US4495216A
Cited
US4568624A
Cited
US4673631A
Cited
US4621039A
Cited
US4685620A
Cited
US4623606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |