Patent US3954694A successfully refreshed from Google Patents.
US3954694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wearing composition
Assignee: FEL-PRO CHEMICAL PRODUCTS LP
•
Filing: 1975-02-03
•
Granted: 1976-05-04
•
Expires: 1995-02-03
Abstract
Abstract This is concerned with the coating or composition for use as a coating to be applied to surfaces subjected to wear to increase the life of the surface by resisting excessive wear thereon where the surface is subjected to a high abrasion or an abrasive atmosphere. The coating is intended to be trowelable, meaning that it can be applied with a trowel or any similar tool or instrumentality which enables it to be applied at the site or on the job.
Inventors
- 👤 James R. Hallstrom
- 👤 Raymond J. Hoffman
- 👤 Ronald L. Walling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:02
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/34; B24D3/342; B24D3/344; C; C04; C04B; C04B41/00; C04B41/45; C04B41/46; C04B41/48; C04B41/50; C04B41/5053
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
99 words
A trowelable wearing composition for on-the-job application to a surface to provide a wearing surface having resistance to wear caused by impact, abrasion, erosion or corrosion, including a matrix composed of an uncured, curable, crosslinkable thermosetting resin, a curing agent for the resin and a thixotropic agent, large abrasion resistant ceramic particles, smaller coabrasion resistant filler particles and of a hardness on the order of that of the material causing the wear dispersed in rather random fashion among the large particles when applied, and a minor amount of a silane coupling agent to bond the matrix and the particles.
Claim 2
Dependent Claim
99 words
A trowelable wearing composition for on-the-job application to a surface to provide a wearing surface having resistance to wear caused by impact, abrasion, erosion or corrosion, including a matrix composed of an uncured, curable, crosslinkable thermosetting resin, a curing agent for the resin and a thixotropic agent, large abrasion resistant ceramic particles, smaller coabrasion resistant filler particles and of a hardness on the order of that of the material causing the wear dispersed in rather random fashion among the large particles when applied, and a minor amount of a silane coupling agent to bond the matrix and the particles.
Claim 3
Dependent Claim
17 words
The composition of claim 1 further characterized in that the large ceramic particles are essentially spherical beads.
Claim 4
Dependent Claim
16 words
The composition of claim 1 further characterized in that the coabrasion resistant filler is silicon carbide.
Claim 5
Dependent Claim
16 words
The composition of claim 1 further characterized in that the thermosetting resin is an epoxy resin.
Claim 6
Dependent Claim
131 words
A curable resin composition for on-the-job application to a surface to provide a wearing surface having resistance to wear, a unitary system including a container of a certain amount of the uncured resin with large abrasion resistant ceramic particles and much smaller coabrasion resistant filler particles therethrough and of a hardness on the order of that of the material causing the wear, a separate container with a proportionate amount of a curing agent and with large abrasion resistant ceramic particles and much smaller coabrasion resistant filler particles therethrough whereby the contents of both containers are capable of mixing readily by the existence of large and much smaller abrasive particles in each container, and a minor amount of a silane coupling agent in each container to bond the matrix and the particles.
Claim 7
Dependent Claim
131 words
A curable resin composition for on-the-job application to a surface to provide a wearing surface having resistance to wear, a unitary system including a container of a certain amount of the uncured resin with large abrasion resistant ceramic particles and much smaller coabrasion resistant filler particles therethrough and of a hardness on the order of that of the material causing the wear, a separate container with a proportionate amount of a curing agent and with large abrasion resistant ceramic particles and much smaller coabrasion resistant filler particles therethrough whereby the contents of both containers are capable of mixing readily by the existence of large and much smaller abrasive particles in each container, and a minor amount of a silane coupling agent in each container to bond the matrix and the particles.
Claim 8
Dependent Claim
16 words
The composition of claim 5 further characterized in that the large ceramic particles are spherical beads.
Claim 9
Dependent Claim
18 words
The composition of claim 5 further characterized in that the smaller coabrasion resistant filler particles are silicon carbide.
Claim 10
Dependent Claim
15 words
The composition of claim 5 further characterized in that the resin is an epoxy resin.
Claim 11
Dependent Claim
27 words
The composition of claim 5 further characterized in that the resin container includes an epoxy terminated silane and the curing agent container includes an amine terminated silane.
References Cited (Backward Citations)
US3876579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |