US4378402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surfacing compositions, methods and resulting products
Assignee: Individual
•
Filing: 1981-11-05
•
Granted: 1983-03-29
•
Expires: 2001-11-05
Abstract
Abstract A composition for producing surface layers on wood or other substrates is formed from diatomite, expanded perlite, chopped glass fibers and a thermosettable resin mixed in specified amounts to provide a flowable mixture. When applied to the substrate as a layer about 1 to 2 cms. thick and the resin component has cured, a tough, impact-resistant, watertight surface is created on the substrate. The new compositions and surfacing methods are particuarly useful for refinishing the hulls of wooden boats.
Inventors
- 👤 Charles Below
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:35
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04; B32B27/00; B32B27/42; B63; B63B; B63B5/00; B63B5/12; C; C08; C08K; C08K3/00; C08K3/34; C08K3/36; C08K3/40; C09; C09D; C09D161/00; C09D163/00; C09D167/00; C09D167/06; B32B2363/00; B32B2367/00; B32B2605/00; B32B2605/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/20; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31971; Y10T428/31989; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/109; Y10T442/131
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
73 words
A composition for use in producing tough, impact-resistant, watertight surface layers on wood or other substrates consisting essentially of the following solid ingredients in the parts by weight indicated: ______________________________________
parts
______________________________________
diatomite 3 to 6
expanded perlite 1 to 3
chopped glass fibers
1
______________________________________ in substantially homogeneous admixture with a liquid thermosettable resin, the ratio of said solid ingredients to said liquid resin being such as to provide a flowable composition.
Claim 2
Dependent Claim
73 words
A composition for use in producing tough, impact-resistant, watertight surface layers on wood or other substrates consisting essentially of the following solid ingredients in the parts by weight indicated: ______________________________________
parts
______________________________________
diatomite 3 to 6
expanded perlite 1 to 3
chopped glass fibers
1
______________________________________ in substantially homogeneous admixture with a liquid thermosettable resin, the ratio of said solid ingredients to said liquid resin being such as to provide a flowable composition.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein said resin is selected from the group consisting of polyester resins, epoxy resins, phenol-aldehyde resins and amino-aldehyde resins.
Claim 4
Dependent Claim
27 words
The compositions of claim 1 wherein said glass fibers have a length between about 2 to 25 mm. and a diameter between about 10 to 1000 microns.
Claim 5
Dependent Claim
34 words
The composition of claim 1 wherein said liquid resin is a polyester resin and the weight ratio of said resin to said solid ingredients is between about 1 to 1 and 1 to 10.
Claim 6
Dependent Claim
76 words
The composition of claim 1 prepared by dry mixing together said solid ingredients to form a uniform mixture thereof in the parts by weight specified, adding thereto catalyzed liquid thermosettable resin selected from the group consisting of polyester resins, epoxy resins, phenol-aldehyde resins and amino-aldehyde resins in a ratio of resin to said uniform mixture between about 1 to 1 and 1 to 10 and mixing said components until a substantially homogeneous, trowelable composition is producted.
Claim 7
Dependent Claim
82 words
The method of producing a tough, impact-resistant, watertight layer on the surface of a wood substrate which comprises stapling a layer of expanded metal mesh on that exposed surface of said substrate, applying composition as defined in claim 1 to said exposed surface in sufficient quantity to completely cover said surface to a depth greater than the thickness of said metal mesh, trowelling the applied composition to form a smooth surface thereof and allowing the resin component of said composition to cure.
Claim 8
Dependent Claim
15 words
The method of claim 6 wherein said substrate is the wooden hull of a boat.
Claim 9
Dependent Claim
12 words
A refinished wooden hull boat produced by the method of claim 7.
References Cited (Backward Citations)
US2804437A
Cited
US4128524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-28 | 1986-09-27 | 1987-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-28 | 1990-09-27 | 1991-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-28 | 1994-09-27 | 1995-03-29 | $7700.00 | Window Closed / Lapsed |