Patent US4508780A successfully refreshed from Google Patents.
US4508780A
Expired / Lapsed
US
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Metallized polymer granules, and their use
Assignee: Bayer AG
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Filing: 1983-04-04
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Granted: 1985-04-02
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Expires: 2003-04-04
Abstract
Abstract Polymer granules having a single particle volume of 0.01 mm 3 to 150 mm 3 and a metal layer of 0.5 to 35% by weight, relative to polymer, can be processed by the customary methods of the plastics industry into shaped articles which have permanent antistatic properties and screen off electromagnetic waves.
Inventors
- 👤 Kirkor Sirinyan
- 👤 Rudolf Merten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:40
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/42; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/936; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2998
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
66 words
Polymer granules having a single particle volume of 0.01 mm 3 to 150 mm 3 and a metal layer of 0.5 to 35 percent by weight, relative to polymer said metal layer obtained by currentless chemical metallization after activating the surfaces of the granules with metallo-organic compounds of elements of group 1B or VIII of the periodic table of the elements and subsequently reducing said metallo-organic.
Claim 2
Dependent Claim
66 words
Polymer granules having a single particle volume of 0.01 mm 3 to 150 mm 3 and a metal layer of 0.5 to 35 percent by weight, relative to polymer said metal layer obtained by currentless chemical metallization after activating the surfaces of the granules with metallo-organic compounds of elements of group 1B or VIII of the periodic table of the elements and subsequently reducing said metallo-organic.
Claim 3
Dependent Claim
27 words
Polymer granules according to claim 1, having a single particle volume of 0.1 to 50 mm 3 and a metal layer of 3 to 25% by weight.
Claim 4
Dependent Claim
21 words
Polymer granules according to claim 1, having a layer of nickel, copper, silver, cobalt, gold, tin, zinc, lead, chromium or cadmium.
Claim 5
Dependent Claim
14 words
Polymer granules according to claim 1, having a layer of nickel, cobalt or copper.
Claim 6
Dependent Claim
14 words
A polymer granule according to claim 1, wherein the polymer is acrylonitrile/butadiene/styrene graft copolymer.
Claim 7
Dependent Claim
12 words
A polymer granule according to claim 1, wherein the polymer is polyamide-6,6.
Claim 8
Dependent Claim
13 words
A polymer granule according to claim 1, wherein the polymer is a polycarbonate.
Claim 9
Dependent Claim
12 words
A polymer granule according to claim 1, wherein the polymer is polystryene.
Claim 10
Dependent Claim
13 words
A polymer granule according to claim 1, wherein the polymer is cellulose acetate.
Claim 11
Dependent Claim
12 words
A polymer granule according to claim 1, wherein the polymer is polyethylene.
Claim 12
Dependent Claim
13 words
A polymer granule according to claim 1, wherein the polymer is polyamide 6.
Claim 13
Dependent Claim
12 words
A polymer granule according to claim 1, wherein the polymer is polypropylene.
Claim 14
Dependent Claim
17 words
Use of the granules provided with a metal layer, according to claim 1, for preparing shaped articles.
Claim 15
Dependent Claim
10 words
A shaped article of polymer granules according to claim 1.
Claim 16
Dependent Claim
13 words
A shaped article according to claim 14, in the form of a board.
Claim 17
Dependent Claim
15 words
A shaped article according to claim 15, wherein the polymer is an acrylonitrile/butadiene/styrene graft polymer.
References Cited (Backward Citations)
US4039297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-01 | 1988-10-01 | 1989-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-01 | 1992-10-01 | 1993-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-01 | 1996-10-01 | 1997-04-02 | $7700.00 | Window Closed / Lapsed |