US3918927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electroplating polypropylene
Assignee: Phillips Petroleum Co
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Filing: 1974-06-20
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Granted: 1975-11-11
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Expires: 1994-06-20
Abstract
Abstract Electroplating of propylene polymers containing a nonporous natural silica filler is achieved by conditioning a preformed article of said propylene polymer with a high acid content chromate conditioning agent, thereafter preplating the conditioned article with an electrolessly platable metal, and then electroplating the preplated article with a final finish to obtain a metal-plated propylene polymer product.
Inventors
- 👤 Johnny L Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:48
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/1601; C23C18/1633; C23C18/1646; C23C18/165; C23C18/1653; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12438; Y10T428/12493; Y10T428/12535; Y10T428/12556; Y10T428/12569
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
13 words
A PROCESS FOR ELECTROPLATING A MOLDABLE PROPYLENE POLYMER WHICH COMPRISES THE STEPS OF
Claim 2
Dependent Claim
13 words
A PROCESS FOR ELECTROPLATING A MOLDABLE PROPYLENE POLYMER WHICH COMPRISES THE STEPS OF
Claim 3
Dependent Claim
49 words
INCORPORATING A NONPOROUS NATURAL SILLICA FILLER HAVING A PARTICLE SIZE IN THE RANGE OF 1 TO 50 MICRONS, A SURFACE AREA IN THE RANGE OF 1 TO 40CM2/G AND AN OIL ABSORPTION VALUE IN THE RANGE OF 15 TO 40GRAMS OF OIL PER 100 GRAMS FILLER INTO SAID POLYMER,
Claim 4
Dependent Claim
49 words
INCORPORATING A NONPOROUS NATURAL SILLICA FILLER HAVING A PARTICLE SIZE IN THE RANGE OF 1 TO 50 MICRONS, A SURFACE AREA IN THE RANGE OF 1 TO 40CM2/G AND AN OIL ABSORPTION VALUE IN THE RANGE OF 15 TO 40GRAMS OF OIL PER 100 GRAMS FILLER INTO SAID POLYMER,
Claim 5
Dependent Claim
9 words
MOLDING THE RESULTING COMPOSITION OF PROPYLENE POLYMER AND FILLER,
Claim 6
Dependent Claim
9 words
MOLDING THE RESULTING COMPOSITION OF PROPYLENE POLYMER AND FILLER,
Claim 7
Dependent Claim
11 words
preplating the resulting conditioned product with an electrolessly platable metal; and
Claim 8
Dependent Claim
11 words
preplating the resulting conditioned product with an electrolessly platable metal; and
Claim 9
Dependent Claim
26 words
A process according to claim 1 wherein said silica filler is present in an amount in the range of about 10 to about 50 weight percent.
Claim 10
Dependent Claim
9 words
molding the resulting composition of propylene polymer and filler;
Claim 11
Dependent Claim
9 words
molding the resulting composition of propylene polymer and filler;
Claim 12
Dependent Claim
8 words
THE PRODUCT OF THE PROCESS OF CALM 1.
Claim 13
Dependent Claim
8 words
THE PRODUCT OF THE PROCESS OF CALM 1.
Claim 14
Dependent Claim
55 words
CONDITIONING THE MOLED PROPYLENE POLYNER PRODUCT OF STPE (2) BY CONTACTING SAME WITH AN ACID CHROMATE ETCH CONSISTING OF 28.1 TO 33.0 WEIGHT PERCENT H2SO4 23.8 TO 26.4 WEIGHTPERCENT CRO3 AND 40.6 TO 48.1 WEIGHT PERCENT H2O FOR A PERIOD OF 0.1 TO 20 MINUTES AT A TEMPERATURE IN THE RANGE OF 75* TO 200*F.,
Claim 15
Dependent Claim
55 words
CONDITIONING THE MOLED PROPYLENE POLYNER PRODUCT OF STPE (2) BY CONTACTING SAME WITH AN ACID CHROMATE ETCH CONSISTING OF 28.1 TO 33.0 WEIGHT PERCENT H2SO4 23.8 TO 26.4 WEIGHTPERCENT CRO3 AND 40.6 TO 48.1 WEIGHT PERCENT H2O FOR A PERIOD OF 0.1 TO 20 MINUTES AT A TEMPERATURE IN THE RANGE OF 75* TO 200*F.,
Claim 16
Dependent Claim
15 words
PREPLATING THE RESULTING CONDITIONED POLYMER PRODUCT OF STEP (3) WITH AN ELECTROLESSLY PLATABLE METAL, AND
Claim 17
Dependent Claim
15 words
PREPLATING THE RESULTING CONDITIONED POLYMER PRODUCT OF STEP (3) WITH AN ELECTROLESSLY PLATABLE METAL, AND
Claim 18
Dependent Claim
13 words
A process for electroplating a moldable propylene polymer which comprises the steps of
Claim 19
Dependent Claim
13 words
A process for electroplating a moldable propylene polymer which comprises the steps of
Claim 20
Dependent Claim
15 words
preplating the resulting conditioned polymer product of step (3) with an electrolessly platable metal; and
Claim 21
Dependent Claim
15 words
preplating the resulting conditioned polymer product of step (3) with an electrolessly platable metal; and
Claim 22
Dependent Claim
19 words
ELECTROPLATING THE PREPLATED PRODUCT OF STEP (4) WITH A FINAL METAL FINISH TO OBTAIN A METAL-PLATED PROPYLENE POLYMER PRODUCT.
Claim 23
Dependent Claim
19 words
ELECTROPLATING THE PREPLATED PRODUCT OF STEP (4) WITH A FINAL METAL FINISH TO OBTAIN A METAL-PLATED PROPYLENE POLYMER PRODUCT.
Claim 24
Dependent Claim
19 words
electroplating the preplated product of step (4) with a final metal finish to obtain a metal-plated propylene polymer product.
Claim 25
Dependent Claim
19 words
electroplating the preplated product of step (4) with a final metal finish to obtain a metal-plated propylene polymer product.
Claim 26
Dependent Claim
10 words
The electroplated product of the process according to claim 4.
References Cited (Backward Citations)
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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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |