US3663260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Talc filled metallizable polyolefins
Assignee: Standard Oil Co
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Filing: 1970-07-20
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Granted: 1972-05-16
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Expires: 1990-07-20
Abstract
Abstract Metallizable polyolefin compositions are provided by incorporating into a polyolefin from about 1 percent to about 50 percent by weight, based on the weight of the polyolefin, of a finely-divided talc having a platey (micaceous) or massive (granular) particle shape and having an average particle size of from about 0.4 microns to about 40 microns. The aforementioned talc filled polyolefin compositions may be metallized by electroplating or other metallizing processes to form metallized shaped articles.
Inventors
- 👤 Wassily Poppe
- 👤 Habet M Khelghatian
- 👤 Anthony J Lutz Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:13
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/05; C08K5/09; C08K5/098; C08K5/10; C08K5/13; C08L; C08L23/00; C08L23/02; C08L23/10; C08L71/00; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/2006; C23C18/2046; C23C18/2073; C23C18/208; C23C18/22; C23C18/24; C23C18/28; C23C18/285; C23C18/30; H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/0373; H05K3/00; H05K3/10; H05K3/18; H05K3/181; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/259
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
27 words
A metallized article according to claim 1 wherein said polyolefin base member additionally contains an adhesion-promoting modifier selected from the group consisting of rosin and rosin derivatives.
Claim 2
Dependent Claim
36 words
A metallized article according to claim 1 wherein the amount of talc is from about 10 percent to a about 40 percent and the average particle size is from about 2 microns to about 20 microns.
Claim 3
Dependent Claim
47 words
A metallized article according to claim 1 wherein said polyolefin is a substantially crystalline polypropylene, wherein the amount of talc is from about 15 percent to about 30 percent and wherein the average particle size of said talc is from about 2 microns to about 10 microns.
Claim 4
Dependent Claim
16 words
A metallized article according to claim 1 wherein said polyolefin is a substantially crystalline propylene polymer.
Claim 5
Dependent Claim
24 words
A metallized article according to claim 5 wherein the average particle size of said talc is from about 2 microns to about 20 microns.
Claim 6
Dependent Claim
80 words
In a process for preparing an electroplatable polyolefin composition wherein said composition is subsequently plated to form a metallized shaped article having a polyolefin base member and a superimposed metal layer, the improvement of incorporating into said polyolefin composition from about 1 percent to about 50 percent by weight, based on the weight of the polyolefin, of talc having a platey or massive particle shape and having an average particle size of from about 0.4 microns to about 40 microns.
Claim 7
Dependent Claim
21 words
A process according to claim 7 wherein the amount of said talc is from about 10 percent to about 40 percent.
Claim 8
Dependent Claim
31 words
A process according to claim 7 wherein said polyolefin is a, substantially crystalline polypropylene and wherein the particle size of said talc is from about 2 microns to about 20 microns.
References Cited (Backward Citations)
US3157614A
Cited
US3567594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |