US4233203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moldable thermosetting phenol-aldehyde resin compositions and process for making the compositions
Assignee: Occidental Chemical Corp
•
Filing: 1977-12-22
•
Granted: 1980-11-11
•
Expires: 1997-12-22
Abstract
Abstract Molding compositions containing a phenol-aldehyde resin, a filler material and processed mineral fiber as a processing aid are described. The compositions are suited to be extruded and comminuted to produce a nodular product essentially uniform in size and useful in injection, transfer, and compression molding processes.
Inventors
- 👤 Walter G. Baumgardt
- 👤 John J. Ondesko
- 👤 Bernard K. Zysman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:35
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16D; F16D69/00; F16D69/02; F16D69/021; F16D69/022; F16D69/025; F16D69/026
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
A phenol-aldehyde resin molding composition capable of forming a nodular or flake product comprising from about 15 to about 60 percent by weight phenol-aldehyde resin, from about 3 to about 20 percent by weight of processed mineral fiber processing aid, and from about 20 to about 70 percent by weight filler material.
Claim 2
Dependent Claim
52 words
A phenol-aldehyde resin molding composition capable of forming a nodular or flake product comprising from about 15 to about 60 percent by weight phenol-aldehyde resin, from about 3 to about 20 percent by weight of processed mineral fiber processing aid, and from about 20 to about 70 percent by weight filler material.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein the phenol-aldehyde resin is phenol-formaldehyde.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein the filler material is predominantly inorganic.
Claim 5
Dependent Claim
24 words
The composition of claim 1 wherein the processed mineral fiber is added in an amount between about 5 and about 15 percent by weight.
Claim 6
Dependent Claim
41 words
A process of producing phenol-aldehyde molding composition comprising the steps of: (a) preparing the composition of claim 1 in finely divided form, (b) extruding the prepared composition, (c) comminuting the extruded product, and, (d) recovering a product substantially uniform in size.
Claim 7
Dependent Claim
10 words
A nodular product produced by the process of claim 5.
Claim 8
Dependent Claim
10 words
A flake product produced by the process of claim 5.
Claim 9
Dependent Claim
10 words
A molded article produced from the composition of claim 1.
Claim 10
Dependent Claim
25 words
The composition of claim 2 wherein the processed mineral fiber processing aid has a diameter in the range of about 1 to about 10 microns.
Claim 11
Dependent Claim
20 words
The composition of claim 9 wherein the processed mineral fiber processing aid has an aspect ratio of 40 to 60.
References Cited (Backward Citations)
GB562310A
Cited
GB762272A
Cited
US3567667A
Cited
GB1225175A
Cited
US3651008A
Cited
GB1225037A
Cited
US3658748A
Cited
GB1408568A
Cited
US3922241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |