US4419400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pultruded reinforced phenolic resin products
Assignee: Occidental Chemical Corp
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Filing: 1981-10-26
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Granted: 1983-12-06
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Expires: 2001-10-26
Abstract
Abstract Filament reinforced phenolic resin products are provided which comprise a plurality of filaments and a cured, normally liquid phenolic resin interspersed around the filaments. The filaments can be in the form of continuous fibers, roving, woven roving, cloth and mat. The products are useful in structural applications. Also disclosed are novel glycol-modified resole phenolic resins and oligomeric polyol-modified resole phenolic resins.
Inventors
- 👤 Raymond R. Hindersinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:13
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/50; B29C70/52; C08G; C08G8/00; C08G8/28; C08G8/36; C08G8/38; C08L; C08L61/00; C08L61/04; C08L61/06; B29K; B29K2061/00; B29K2061/04; C08J2361/00; C08J2361/04; C08J2361/06; Y; Y10; Y10S; Y10S428/00; Y10S428/902; Y10T; Y10T428/00; Y10T428/30; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/31725; Y10T428/31765; Y10T442/00; Y10T442/20; Y10T442/2344; Y10T442/2361; Y10T442/2631
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
84 words
In a pultruded, filament-reinforced product having a substantially uniform cross-section throughout its length and comprising (a) a filament component comprising a plurality of filaments and (b) a cured normally liquid resin interspersed around said filaments; the improvement wherein the liquid resin is a liquid phenolic resin having a viscosity in the range of about 500 to about 4,000 centipoises at 23° C., and a maximum volatile content of about 12 weight percent of volatile material having a boiling point of less than 120° C.
Claim 2
Dependent Claim
84 words
In a pultruded, filament-reinforced product having a substantially uniform cross-section throughout its length and comprising (a) a filament component comprising a plurality of filaments and (b) a cured normally liquid resin interspersed around said filaments; the improvement wherein the liquid resin is a liquid phenolic resin having a viscosity in the range of about 500 to about 4,000 centipoises at 23° C., and a maximum volatile content of about 12 weight percent of volatile material having a boiling point of less than 120° C.
Claim 3
Dependent Claim
22 words
The product of claim 1 wherein the filaments are continuous and the filaments are aligned with the longitudinal axis of the product.
Claim 4
Dependent Claim
14 words
The product of claim 2 wherein the filaments are in the form of roving.
Claim 5
Dependent Claim
14 words
The product of claim 2 wherein the filaments are in the form of thread.
Claim 6
Dependent Claim
26 words
The product of claim 1 wherein the product is in the form of a sheet and the filament component is in the form of woven roving.
Claim 7
Dependent Claim
25 words
The product of claim 1 wherein the product is in the form of a sheet and the filament component is in the form of cloth.
Claim 8
Dependent Claim
25 words
The product of claim 1 wherein the product is in the form of a sheet and the filament component is in the form of mat.
Claim 9
Dependent Claim
21 words
The product of claim 1 wherein the viscosity is in the range of about 800 to 3,000 centipoises at 23° C.
Claim 10
Dependent Claim
14 words
The product of claim 9 wherein the liquid phenolic resin is a resole resin.
Claim 11
Dependent Claim
15 words
The product of claim 10 wherein the liquid phenolic resin is a glycol-modified resole resin.
Claim 12
Dependent Claim
16 words
The product of claim 1 wherein the liquid phenolic resin is an oligomeric polyol-modified resole resin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |