Patent US5322737A successfully refreshed from Google Patents.
US5322737A
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US
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Formed articles made of polymeric material and having improved surface characteristics and process for producing them
Assignee: Enichem SpA
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Filing: 1993-10-06
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Granted: 1994-06-21
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Expires: 2013-10-06
Abstract
Abstract Formed articles having improved surface properties, such as wettability, printability, adhesion, antistaticity and clouding resistance, consisting of a polymeric finished article or semi-finished article coated on at least a surface with a polyhydroxethylacrylate layer, preferably prepared by means of plasma polymerization.
Inventors
- 👤 Marco Morra
- 👤 Ernesto Occhiello
- 👤 Fabio Garbassi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:37
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08J7/056; C09; C09D; C09D133/00; C09D133/04; C09D133/14; C08J2433/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31725; Y10T428/3175; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/31928
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
52 words
A formed polymer article having improved surface characteristics, said polymer article having 1-100 nm thick coating layer of polyhydroxyethylacrylate on at least one surface thereof wherein said coating layer is formed by plasma vapor polymerization of hydroxyethylacrylate and said polymer article has a residence time in said vapor of from 0.1-20 seconds.
Claim 2
Dependent Claim
52 words
A formed polymer article having improved surface characteristics, said polymer article having 1-100 nm thick coating layer of polyhydroxyethylacrylate on at least one surface thereof wherein said coating layer is formed by plasma vapor polymerization of hydroxyethylacrylate and said polymer article has a residence time in said vapor of from 0.1-20 seconds.
Claim 3
Dependent Claim
15 words
The article of claim 1, wherein said coating layer has a thickness of 5-60 nm.
Claim 4
Dependent Claim
26 words
The article of claim 1, wherein said polymer is selected from the group consisting of polyolefins, polystyrenes, polystyrene copolymers, polymethacrylates, polycarbonates, polyesters, polyamides and mixtures thereof.
Claim 5
Dependent Claim
25 words
The article of claim 1, wherein said coating layer has a water advancement contact angle of 45°-54° and a water recess contact angle of 11°-12°.
Claim 6
Dependent Claim
54 words
A process for preparing a formed polymer article having improved surface characteristics, comprising plasma vapor polymerizing hydroxyethylacrylate on the surface of a polymer article to form a 1-100 nm thick coating layer of polyhydroxyethylacrylate on a surface of said article, wherein said polymer article has a residence in said vapor of from 0.1-20 seconds.
Claim 7
Dependent Claim
54 words
A process for preparing a formed polymer article having improved surface characteristics, comprising plasma vapor polymerizing hydroxyethylacrylate on the surface of a polymer article to form a 1-100 nm thick coating layer of polyhydroxyethylacrylate on a surface of said article, wherein said polymer article has a residence in said vapor of from 0.1-20 seconds.
Claim 8
Dependent Claim
36 words
The process of claim 5, wherein said plasma polymerization is conducted by contacting said polymer article with hydroxyethylacrylate vapor at a pressure of from 0.1-500 Pa, in the presence of a plasma discharge lasting 0.01-10 seconds.
Claim 9
Dependent Claim
24 words
The process of claim 6, wherein said pressure is 0.1-10 Pa, said plasma discharge lasts 0.1-5 seconds, and said residence time is 1-10 seconds.
Claim 10
Dependent Claim
22 words
The process of claim 6, wherein said plasma discharge is generated by direct current, alternating current, radio frequency radiation or microwave radiation.
Claim 11
Independent Claim
36 words
A method of improving the wettability of a polymer article, comprising: polymerizing hydroxyethylacrylate onto the surface of a polymer article to form a 1-100 nm thick layer of polyhydroxyethylacrylate on a surface of said polymer article.
Claim 12
Independent Claim
36 words
A method of improving the wettability of a polymer article, comprising: polymerizing hydroxyethylacrylate onto the surface of a polymer article to form a 1-100 nm thick layer of polyhydroxyethylacrylate on a surface of said polymer article.
Claim 13
Dependent Claim
25 words
The process of claim 9, wherein said coating layer has a water advancement contact angle of 45°-54° and a water recess contact angle of 11°-12°.
References Cited (Backward Citations)
US5028332A
Cited
US4885077A
Cited
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