JPS56106926A - Improvement of surface hardness - Google Patents

Improvement of surface hardness

Info

Publication number
JPS56106926A
JPS56106926A JP824480A JP824480A JPS56106926A JP S56106926 A JPS56106926 A JP S56106926A JP 824480 A JP824480 A JP 824480A JP 824480 A JP824480 A JP 824480A JP S56106926 A JPS56106926 A JP S56106926A
Authority
JP
Japan
Prior art keywords
film
mixture
surface hardness
give
base material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP824480A
Other languages
Japanese (ja)
Other versions
JPS636098B2 (en
Inventor
Akinori Noda
Seiichi Miyasaka
Hiroshi Kawahara
Sumio Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHOKUBAI KASEI KOGYO KK
AGC Inc
JGC Catalysts and Chemicals Ltd
Original Assignee
SHOKUBAI KASEI KOGYO KK
Catalysts and Chemicals Industries Co Ltd
Asahi Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHOKUBAI KASEI KOGYO KK, Catalysts and Chemicals Industries Co Ltd, Asahi Glass Co Ltd filed Critical SHOKUBAI KASEI KOGYO KK
Priority to JP824480A priority Critical patent/JPS56106926A/en
Publication of JPS56106926A publication Critical patent/JPS56106926A/en
Publication of JPS636098B2 publication Critical patent/JPS636098B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Paints Or Removers (AREA)

Abstract

PURPOSE: To improve adhesiveness and the surface hardness of a plastic, by treating the surface of a base material with polyurethane primer, followed by applying a coating compound for improving surface hardness comprising a butyral resin and colloidal silica to the surface of the base material.
CONSTITUTION: The surface of a plastic, e.g., polycarbonate, etc. is coated with polyurethane primer, e.g., a mixture of a polyhydric alcohol, preferably polyether polyol having a molecular weight 500W3,000, and a polyfunctional isocyanate compound, e.g., diphenylmethane diisocyanate, etc., or a solution obtained by dissolving the mixture in a solvent, e.g., tetrahydrofuran, etc., to form a film with a thickness preferably 0.1W5μ. A solution of butyral resin in an organic solvent compatible with alcohols is blended with a dispersion of colloidal silica having an average particle size of preferably 50W400Å in an alcohol to give a blend, to which p- toluenesolfonic acid is added, and the prepared mixture is applied to the primer film. The resulting film is cured by heating at 80W150°C, to give the desired film.
COPYRIGHT: (C)1981,JPO&Japio
JP824480A 1980-01-29 1980-01-29 Improvement of surface hardness Granted JPS56106926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP824480A JPS56106926A (en) 1980-01-29 1980-01-29 Improvement of surface hardness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP824480A JPS56106926A (en) 1980-01-29 1980-01-29 Improvement of surface hardness

Publications (2)

Publication Number Publication Date
JPS56106926A true JPS56106926A (en) 1981-08-25
JPS636098B2 JPS636098B2 (en) 1988-02-08

Family

ID=11687725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP824480A Granted JPS56106926A (en) 1980-01-29 1980-01-29 Improvement of surface hardness

Country Status (1)

Country Link
JP (1) JPS56106926A (en)

Also Published As

Publication number Publication date
JPS636098B2 (en) 1988-02-08

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