US3853577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing decorative layer
Assignee: Dai Nippon Toryo Co Ltd
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Filing: 1973-01-05
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Granted: 1974-12-10
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Expires: 1993-01-05
Abstract
Abstract A method of preparing a decorative layer which comprises spraycoating a mortar composition containing 3 - 50 wt% of an epoxy resin and an epoxy hardener, 5 - 70 wt% cement, 5 - 70 wt% of an aggregate powder and 5 - 30 wt% water onto the surface of a base so as to form a concavo-convex surface pattern, pressing the top of the convex portions of the surface while in a semihardened condition to form flat areas on the tops of the convex portions and finish-coating the surface with a synthetic resin enamel or lacquer.
Inventors
- 👤 H Nishida
- 👤 A Yoneyama
- 👤 M Yamanishi
- 👤 S Tanaka
- 👤 A Hatanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:45
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/02; B; B05; B05D; B05D5/00; B05D5/02; B05D5/06; B05D5/061; B05D7/00; B05D7/50; B05D7/52; B05D7/53; B05D7/534; B05D7/54; B05D7/544; C; C04; C04B; C04B41/00; C04B41/45; C04B41/4505; B05D3/00; B05D3/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
A METHOD OF PREPARING A DECORATIVE LAYER, WHICH COMPRISES: SPRAY-COATING A FIRST COATING UNDER A PRESSURE OF 5-8 KG/CM2 OF A MORTAR COMPOSITION CONTAINING 3-50 WEIGHT PERCENT OF AN EPOXY RESIN AND AN EPOXY HARDENER, 5-70 WEIGHT PERCENT CEMENT, 5-70 WEIGHT PERCENT OF AN AGGREGATE POWDER AND 5-30 WEIGHT PERCENT WATER AND HAVING A VISCOSITY IN THE RANGE OF 100-500 POISE AT 25*C ONTO THE SURFACE OF A BASE; SPRAY CONTING A SECOND COATING OF SAID MORTAR COMPOSITION UNDER A PRESSURE OF 2-5KG/CM2 SO AS TO FORM A CONCAVOCONVEX SURFACE PATTERN; PRESSING THE TOP OF THE COVEX PORTIONS OF THE SURFACE WHILE IN A SEMI-HARDENED CONDITION WHICH OCCURS FROM 0.5-6 HOURS AFTER THE APPLICATION OF SAID SECOND COATING, TO FORM FLAT AREAS ON THE TOPS OF THE CONVEX PORTIONS; AND FINISH-COATING THE SURFACE WITH A SYNTHETIC RESIN, ENAMEL OR LACQUER.
Claim 2
Independent Claim
140 words
A METHOD OF PREPARING A DECORATIVE LAYER, WHICH COMPRISES: SPRAY-COATING A FIRST COATING UNDER A PRESSURE OF 5-8 KG/CM2 OF A MORTAR COMPOSITION CONTAINING 3-50 WEIGHT PERCENT OF AN EPOXY RESIN AND AN EPOXY HARDENER, 5-70 WEIGHT PERCENT CEMENT, 5-70 WEIGHT PERCENT OF AN AGGREGATE POWDER AND 5-30 WEIGHT PERCENT WATER AND HAVING A VISCOSITY IN THE RANGE OF 100-500 POISE AT 25*C ONTO THE SURFACE OF A BASE; SPRAY CONTING A SECOND COATING OF SAID MORTAR COMPOSITION UNDER A PRESSURE OF 2-5KG/CM2 SO AS TO FORM A CONCAVOCONVEX SURFACE PATTERN; PRESSING THE TOP OF THE COVEX PORTIONS OF THE SURFACE WHILE IN A SEMI-HARDENED CONDITION WHICH OCCURS FROM 0.5-6 HOURS AFTER THE APPLICATION OF SAID SECOND COATING, TO FORM FLAT AREAS ON THE TOPS OF THE CONVEX PORTIONS; AND FINISH-COATING THE SURFACE WITH A SYNTHETIC RESIN, ENAMEL OR LACQUER.
Claim 3
Dependent Claim
41 words
The method according to claim 1, wherein an epoxy resin emulsion containing 40 - 60 wt% of said epoxy resin is used and a ratio ranging from 1: 0.5 - 1.5 of the epoxy resin to the epoxy hardener is used.
Claim 4
Dependent Claim
22 words
The method according to claim 1, wherein said epoxy resin is a liquid epoxy resin and said epoxy hardener is a polyamide.
Claim 5
Dependent Claim
39 words
The method according to claim 1, wherein said cement is a hydraulic cement such as a white cement, Portland cement, alumina cement or mixtures thereof and said aggregate powder is characterized by a partial size less than 30 mesh.
Claim 6
Dependent Claim
51 words
The method according to claim 2, wherein said epoxy resin emulsion is prepared by separately emulsifying an epoxy resin or a mixture of an epoxy resin with another resin which epoxy resin emulsion is admixed with an epoxy hardener, a cement, and an aggregate powder when said mortar composition is prepared.
Claim 7
Dependent Claim
35 words
The method according to claim 1, wherein said epoxy resin is a liquid epoxy resin or a mixture of a liquid resin and a solid epoxy resin which is soluble in said liquid epoxy resin.
Claim 8
Dependent Claim
18 words
The method according to claim 6, wherein said liquid epoxy resin has at least two terminal epoxy groups.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |