US4446177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced plastic product
Assignee: Individual
•
Filing: 1982-03-12
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Granted: 1984-05-01
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Expires: 2002-03-12
Abstract
Abstract A simulated stone product is formed of a reinforced plastic including a gelcoat layer, a thermoplastic or thermoset resin matrix and a backup layer. The gelcoat layer is composed of a thermoplastic or thermoset resin and plasticizer. The matrix includes fillers, colorants and plasticizers dispersed therein and is laid up on the inner side of the gelcoat layer. The backup layer is comprised of a fibrous polyester sheet impregnated with thermoplastic or thermoset resin and plasticizer. The fibers used in the fibrous sheet may be woven or nonwoven, and are preferably of a polyester material. The backup layer is laid up on the matrix layer. The matrix layer and backup layer may each include microspheres.
Inventors
- 👤 George L. Munoz
- 👤 William J. Munoz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:41
CPC Classifications
B; B44; B44F; B44F9/00; B44F9/04; B29; B29C; B29C70/00; B29C70/02; B29C70/021; B29C70/025; B29C70/026; B29C2791/00; B29C2791/001; B29K; B29K2101/00; B29K2101/10; B29K2101/12; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0854; B29K2105/16; B29K2105/165; B29K2105/24; B29K2105/243; B29K2267/00; B29L; B29L2031/00; B29L2031/722; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1362; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T442/00; Y10T442/20; Y10T442/2861; Y10T442/60; Y10T442/699
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
69 words
A simulated stone composite formed of a reinforced plastic product comprising: (a) a gelcoat layer comprised of a thermoplastic or thermoset resin; (b) a resin matrix layer having dispersed therein fillers and colorants laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a polyester fiber sheet which has been impregnated with thermoplastic or thermoset resin laid up on said matrix layer.
Claim 2
Dependent Claim
69 words
A simulated stone composite formed of a reinforced plastic product comprising: (a) a gelcoat layer comprised of a thermoplastic or thermoset resin; (b) a resin matrix layer having dispersed therein fillers and colorants laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a polyester fiber sheet which has been impregnated with thermoplastic or thermoset resin laid up on said matrix layer.
Claim 3
Dependent Claim
29 words
The product of claim 1 wherein said resin is selected from homopolymers of an ethylenically unsaturated polyester and copolymers of an ethylenically unsaturated polyester and an ethylenically unsaturated monomer.
Claim 4
Dependent Claim
23 words
The product of claim 2 wherein said ethylenically unsaturated monomer is selected from the group consisting of olefins, vinyl esters and epoxy resins.
Claim 5
Dependent Claim
15 words
The product of claim 1 wherein said matrix layer and said backup layer contain microspheres.
Claim 6
Dependent Claim
19 words
The product of claim 4 wherein said microspheres are present up to about 35 weight percent of the composite.
Claim 7
Dependent Claim
15 words
The product of claim 1 wherein said polyester fiber sheet is made of nonwoven fabric.
Claim 8
Dependent Claim
17 words
The product of claim 1 wherein said fillers are calcium carbonate, alumina trihydrate, silica and mixtures thereof.
Claim 9
Dependent Claim
16 words
The product of claim 1 wherein each of said layers (a), (b) and (c) contain plasticizers.
Claim 10
Dependent Claim
86 words
A simulated stone product formed in a thin, lightweight, flexible, resiliant, impact resistant, heat formable sheet comprising: (a) a gelcoat layer comprised of a thermoplastic or thermoset resin and plasticizer; (b) a thermoplastic or thermoset resin matrix having dispersed therein fillers, colorants and plasticizers laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a polyester fiber sheet which has been impregnated with thermoplastic or thermoset resin and plasticizer laid up on the inner side of said matrix layer.
Claim 11
Dependent Claim
86 words
A simulated stone product formed in a thin, lightweight, flexible, resiliant, impact resistant, heat formable sheet comprising: (a) a gelcoat layer comprised of a thermoplastic or thermoset resin and plasticizer; (b) a thermoplastic or thermoset resin matrix having dispersed therein fillers, colorants and plasticizers laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a polyester fiber sheet which has been impregnated with thermoplastic or thermoset resin and plasticizer laid up on the inner side of said matrix layer.
Claim 12
Dependent Claim
13 words
The product of claim 9 wherein said simulated stone is marble or onyx.
Claim 13
Dependent Claim
11 words
The product of claim 9 wherein said simulated stone is slate.
Claim 14
Dependent Claim
13 words
The product of claim 9 wherein layer (b) and layer (c) contain microspheres.
Claim 15
Dependent Claim
17 words
The product of claim 9 wherein said fillers are calcium carbonate, alumina trihydrate, silica and mixtures thereof.
Claim 16
Dependent Claim
12 words
The product of claim 1 in the form of a bathroom fixture.
Claim 17
Dependent Claim
78 words
A bathroom fixture formed of a simulated stone product comprising: (a) a gelcoat comprised of a thermoplastic or thermoset resin and plasticizer; (b) a thermoplastic or thermoset resin matrix having dispersed therein fillers, colorants and plasticizers laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a polyester fiber sheet which has been impregnated with thermoplastic or thermoset resin and plasticizer laid up on the inner side of said matrix layer.
Claim 18
Dependent Claim
78 words
A bathroom fixture formed of a simulated stone product comprising: (a) a gelcoat comprised of a thermoplastic or thermoset resin and plasticizer; (b) a thermoplastic or thermoset resin matrix having dispersed therein fillers, colorants and plasticizers laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a polyester fiber sheet which has been impregnated with thermoplastic or thermoset resin and plasticizer laid up on the inner side of said matrix layer.
Claim 19
Dependent Claim
15 words
The product of claim 1 wherein said polyester fiber sheet is made of woven fibers.
Claim 20
Dependent Claim
65 words
A reinforced flexible plastic product comprising: (a) a gelcoat layer; (b) a resin matrix layer having dispersed therein fillers and colorants laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a sheet of fibrous polyester material of woven or nonwoven fibers impregnated with thermoplastic or thermoset resin laid up on the inner side of said matrix layer.
Claim 21
Dependent Claim
65 words
A reinforced flexible plastic product comprising: (a) a gelcoat layer; (b) a resin matrix layer having dispersed therein fillers and colorants laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a sheet of fibrous polyester material of woven or nonwoven fibers impregnated with thermoplastic or thermoset resin laid up on the inner side of said matrix layer.
Claim 22
Dependent Claim
18 words
A reinforced plastic product as recited in claim 17 wherein said polyester fibers are impregnated with polyester resin.
Claim 23
Dependent Claim
70 words
A simulated stone product comprising: (a) a gelcoat layer comprised of a resin and plasticizer; (b) a resin matrix layer having dispersed therein fillers, colorants and plasticizers laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a sheet of fibrous polyester material of woven or nonwoven polyester fibers impregnated with polyester resin laid up on the inner side of said matrix layer.
Claim 24
Dependent Claim
70 words
A simulated stone product comprising: (a) a gelcoat layer comprised of a resin and plasticizer; (b) a resin matrix layer having dispersed therein fillers, colorants and plasticizers laid up on the inner side of said gelcoat layer; and (c) a backup layer comprised of a sheet of fibrous polyester material of woven or nonwoven polyester fibers impregnated with polyester resin laid up on the inner side of said matrix layer.
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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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |