Patent EP0378855A2 successfully refreshed from Google Patents.
EP0378855A2
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EP
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Thermoplastic substrates having improved water spreading characteristics and method of making
Assignee: General Electric Co
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Filing: 1989-12-27
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Granted: —
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Expires: 2009-12-27
Abstract
Abstract Thermoplastic substrates such as structured sheet and film can be made having enhanced water spreading characteristics, by solvent impregnation or treatment with colloidal silica containing coating compositions which also can contain an acrylic resin.
Inventors
- 👤 Gautam Ambalal Patel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 19:25
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08J3/095; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/06; C09; C09D; C09D133/00; C09D133/04; C08J2333/00; C08J2333/04; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/25; Y10T428/259; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31507; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
102 words
A substantially transparent thermoplastic substrate exhibiting improved water wetting and water spreading characteristics resulting from the treatment of the thermoplastic substrate with a solvent blend selected from the class consisting of (A) a coating composition of organic solvent and from 1% to 10% solids of a mixture consisting essentially of by weight 3 to 50 parts of an acrylic resin per 100 parts of a colloidal inorganic oxide having an average particle size of from 4 to 60 nanometers and, (B) a coating composition having 0.1 to 2 parts by weight of a colloidal incrganic oxide, per 100 parts of organic solvent.
Claim 2
Dependent Claim
102 words
A substantially transparent thermoplastic substrate exhibiting improved water wetting and water spreading characteristics resulting from the treatment of the thermoplastic substrate with a solvent blend selected from the class consisting of (A) a coating composition of organic solvent and from 1% to 10% solids of a mixture consisting essentially of by weight 3 to 50 parts of an acrylic resin per 100 parts of a colloidal inorganic oxide having an average particle size of from 4 to 60 nanometers and, (B) a coating composition having 0.1 to 2 parts by weight of a colloidal incrganic oxide, per 100 parts of organic solvent.
Claim 3
Dependent Claim
11 words
A substantially transparent thermoplastic structured sheet in accordance with claim 1.
Claim 4
Dependent Claim
10 words
A substantially transparent polycarbonate sheet in accordance with claim 1.
Claim 5
Dependent Claim
10 words
A substantially transparent polymethylmethacrylate sheet in accordance with claim 1.
Claim 6
Dependent Claim
26 words
A substantially transparent thermoplastic sheet in accordance with claim 1 having an inorganic oxide-polyacrylate coating with a thickness of about 0.01 micron to about 1 micron.
Claim 7
Dependent Claim
24 words
A substantially transparent thermoplastic sheet in accordance with claim 1 which was solvent impregnated with a solvent blend of diacetone alcohol and colloidal silica.
Claim 8
Dependent Claim
10 words
A substantially transparent thermoplastic film in accordance with claim 1.
Claim 9
Dependent Claim
23 words
A substantially transparent thermoplastic sheet in accordance with claim 1 which is treated with a solvent blend of acrylic resin and colloidal silica.
Claim 10
Dependent Claim
18 words
A substantially transparent thermoplastic sheet in accordance with claim 1 where the colloidal inorganic oxide is colloidal silica.
Claim 11
Dependent Claim
22 words
A substantially transparent thermoplastic sheet in accordance with claim 1 where the organic solvent is a mixture of glycol and glycol ether.
Claim 12
Dependent Claim
23 words
A substantially transparent thermoplastic sheet in accordance with claim 1 where the organic solvent is a mixture of diacetone alcohol and glycol ether.
References Cited (Backward Citations)
No citation records indexed.
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