US4599212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminates having an improved finishing layer
Assignee: Cray Valley SA
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Filing: 1983-12-30
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Granted: 1986-07-08
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Expires: 2003-12-30
Abstract
Abstract Reinforced phenolic laminates are provided with a finishing coat of a butylated phenol-formaldehyde resin, thereby removing surface irregularities. The finishing coat can be mass-pigmented to the desired color, thereby obviating the necessity of any additional color-containing coatings.
Inventors
- 👤 Nicolas Meyer
- 👤 Michel Cousin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:42
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/0405; C08J5/043; B; B29; B29C; B29C37/00; B29C37/0025; B29C37/0028; B29C37/0032; B29C70/00; B29C70/003; C08J7/00; C08J7/04; C08J7/0427; C08J7/046; C09; C09D; C09D161/00; C09D161/04; C09D161/06; C09D161/14; B29C70/04; B29C70/28; B29C70/30; B29K; B29K2061/00; B29K2061/04; C08J2361/00; C08J2361/04; C08J2361/06; C08J2361/08; C08J2361/10; C08J2461/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31946; Y10T442/00; Y10T442/20; Y10T442/2861
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
50 words
In a process for producing a reinforced phenolic resin laminate comprising applying a coating directly to at least one side of said phenolic resin laminate to remove surface irregularities, the improvement wherein said coating is a composition consisting essentially of a butylated phenolic resin containing not more than 5% water.
Claim 2
Dependent Claim
50 words
In a process for producing a reinforced phenolic resin laminate comprising applying a coating directly to at least one side of said phenolic resin laminate to remove surface irregularities, the improvement wherein said coating is a composition consisting essentially of a butylated phenolic resin containing not more than 5% water.
Claim 3
Dependent Claim
49 words
A process according to claim 1 comprising depositing said coating of butylated phenolic resin on a mold, depositing alternating layers of phenolic resin and reinforcing agent, hardening the laminate, and then withdrawing resultant laminate from the mold, said laminate having no surface irregularities due to pitting or fiber projection.
Claim 4
Dependent Claim
21 words
A process according to claim 1, wherein the butylated phenolic resin is substantially hardened prior to said depositing of alternate layers.
Claim 5
Dependent Claim
22 words
A process according to claim 1, wherein the butylated phenolic resin is hardened by using an aqueous concentrated solution of paratoluenesulfonic acid.
Claim 6
Dependent Claim
29 words
A process according to claim 1, wherein the phenolic resin is obtained by condensing formol and phenol in the presence of a basic agent, and it contains a plasticizer.
Claim 7
Dependent Claim
13 words
A process according to claim 1, wherein the butylated phenol resin is mass-pigmented.
Claim 8
Dependent Claim
7 words
A laminate produced according to claim 1.
Claim 9
Dependent Claim
7 words
A laminate produced according to claim 2.
Claim 10
Dependent Claim
7 words
A laminate produced according to claim 5.
Claim 11
Dependent Claim
17 words
A process according to claim 1, wherein the reinforced phenolic resin laminate is reinforced with glass fibers.
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) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |