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US4190689A Expired / Lapsed US ⏱️ 0.0 years remaining

Polymeric-shaped article

Assignee: Toray Industries Inc
•
Filing: 1978-02-17
•
Granted: 1980-02-26
•
Expires: 1998-02-17
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Abstract

Abstract A polymeric-shaped article for use as film such as microfilm, overhead projector film, reprographic film, layout base, etc., and for insulating capacitors, which has excellent transparent, slippery and dielectric properties, and the process for realizing the same, the polymeric-shaped article having a polar surface such as polyester, polyamide, polyolefins, polyimide, polyvinyl alcohol, polyethylene terephthalate or polyethylene-2,6-naphthalate, to which is bonded a multiplicity of nodules of TiO 2 , each nodule having a diameter in the range of from about 0.01 to about 10 μm, a height or thickness in the range of from about 0.01 to about 0.5 μm, and an area ratio of TiO 2 to total surface of from about 0.01 to about 50%; and the process being that of exposing at least one side of the surface of the article to water vapor and bringing a tetrafunctional titanium compound such as TiCl 4 , tetraethyltitanate, tetraisopropyltitanate, tetra-n-butyltitanate or mixture thereof, into contact with the surface, the processing temperature being at least greater than 30° C.

Inventors

  • 👤 Saburo Fujita
  • 👤 Masahiko Motegi
  • 👤 Satoru Okamoto
  • 👤 Atsuhiko Soda
  • 👤 Masakazu Inoue

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 23:04
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/06; C08J7/046; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24909; Y10T428/25; Y10T428/256; Y10T428/31

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 132 words
A polymeric shaped article comprising means for increasing the slip characteristics of said article without causing any significant increase in the haze of said article, said means comprising a plurality of small isolated nodules or spots of TiO 2 which are bonded to a surface of said article, said nodules or spots being independently bonded to said surface, and having the form of a circle or an ellipse, the diameters of said TiO 2 nodules or spots being on the order of from about 0.01 to about 10 μm when microscopically observed in a flat condition, the thickness of each said nodule or spot being from about 0.01 to about 0.5 μm, and the area ratio of said nodules or spots to the total surface area being about 0.01 to about 50%.
Claim 2
Dependent Claim 132 words
A polymeric shaped article comprising means for increasing the slip characteristics of said article without causing any significant increase in the haze of said article, said means comprising a plurality of small isolated nodules or spots of TiO 2 which are bonded to a surface of said article, said nodules or spots being independently bonded to said surface, and having the form of a circle or an ellipse, the diameters of said TiO 2 nodules or spots being on the order of from about 0.01 to about 10 μm when microscopically observed in a flat condition, the thickness of each said nodule or spot being from about 0.01 to about 0.5 μm, and the area ratio of said nodules or spots to the total surface area being about 0.01 to about 50%.
Claim 3
Dependent Claim 26 words
A polymeric shaped article according to claim 1 wherein the diameters of the TiO 2 nodules or spots are from about 0.03 to about 4 μm.
Claim 4
Dependent Claim 26 words
A polymeric shaped article according to claim 1 wherein the diameters of the TiO 2 nodules or spots are from about 0.05 to about 3 μm.
Claim 5
Dependent Claim 26 words
A polymeric shaped article according to claim 1 wherein the thicknesses of the TiO 2 nodules or spots are from about 0.02 to about 0.3 μm.
Claim 6
Dependent Claim 27 words
A polymeric shaped article according to claim 1 wherein the area ratio of TiO 2 is from about 0.05 to about 20% of the total surface area.
Claim 7
Dependent Claim 27 words
A polymeric shaped article according to claim 1 wherein the area ratio of TiO 2 is from about 0.1 to about 10% of the total surface area.
Claim 8
Dependent Claim 20 words
A polymeric shaped article according to claim 1 wherein the article is in the form of film, sheet or fabric.
Claim 9
Dependent Claim 18 words
A polymeric shaped article according to claim 1 wherein the article is oriented in at least one direction.
Claim 10
Dependent Claim 18 words
A polymeric shaped article according to claim 1 wherein the article is in the form of biaxially-oriented film.
Claim 11
Dependent Claim 24 words
A polymeric-shaped article according to claim 1 wherein the polymer is selected from the group consisting of polyester, polyamide, polyolefin, polyimide and polyvinyl alcohol.
Claim 12
Dependent Claim 24 words
A polymeric shaped article according to claim 1 wherein the polymer is a polyester selected from the group consisting of polyethylene terephthalate and polyethylene-2,6-naphthalate.

References Cited (Backward Citations)

GB1130947A Cited
US3616184A Cited
US3808027A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-02-25 1983-08-27 1984-02-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-02-25 1987-08-27 1988-02-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-02-25 1991-08-27 1992-02-26 $7700.00 Window Closed / Lapsed

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