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Transparent layered object and process for producing same

A laminated, transparent technology, applied in chemical instruments and methods, coatings, layered products, etc., can solve problems such as poor scratch resistance, inability to fully ensure transparency, and poor resin wear resistance, etc. The effect of preventing scratches, excellent abrasion resistance, excellent scratch resistance

Active Publication Date: 2014-12-10
MAZDA MOTOR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in general, resins have poor abrasion resistance and poor scratch resistance against scratches caused by car wash brushes, etc.
Therefore, in the case of resin window materials, there is a problem that the transparency cannot be sufficiently ensured

Method used

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  • Transparent layered object and process for producing same
  • Transparent layered object and process for producing same
  • Transparent layered object and process for producing same

Examples

Experimental program
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Effect test

Embodiment

[0123] Next, the transparent laminated body and the manufacturing method of the transparent laminated body concerning this invention are demonstrated using an Example and a comparative example. However, the present invention is not limited to the following examples. In addition, in the examples, parts and % represent parts by weight and % by weight, respectively. Also, in the following examples, silica fine particles were used as the glass fine particles.

[0124] (Synthesis example of silicone resin composition)

Synthetic example 1

[0126] 40 ml of 2-propanol (IPA) as a solvent and 5% tetramethylammonium hydroxide (TMAH aqueous solution) as a basic catalyst were added to a reaction vessel including a stirrer, a dropping funnel, and a thermometer. 15 ml of IPA and 12.69 g of 3-(methacryloxypropyltrimethoxysilane) (manufactured by Dow Corning Toray Co., Ltd.: SZ-6030) were added to the dropping funnel. Next, the IPA solution of 3-(methacryloyloxy)propyltrimethoxysilane was dripped at room temperature over 30 minutes, stirring the reaction container. Stir for two hours in a non-heating environment after the drop. Next, the solvent was removed under reduced pressure, and it was dissolved in 50 ml of toluene. The reaction solution was washed with water until the reaction solution became neutral in saturated saline, and dehydrated with anhydrous magnesium sulfate. Anhydrous magnesium sulfate was then filtered and allowed to concentrate. Thus, 8.6 g of a hydrolysis product (semisiloxane) was obtained. The ab...

Synthetic example 2

[0128] Into a reaction vessel including a stirrer, a dropping funnel, and a thermometer were added 20 ml of IPA as a solvent and 4.0 g of a 5% TMAH aqueous solution as a basic catalyst. 30 ml of IPA and 10.2 g of vinyltrimethoxysilane were added to the dropping funnel. Next, the IPA solution of vinyltrimethoxysilane was dripped at the temperature of 0 degreeC over 60 minutes, stirring the reaction container. After the dropping, slowly return to room temperature, and stir for six hours in a non-heating environment. After stirring, IPA was removed from the solvent under reduced pressure, and dissolved in 200 ml of toluene. Next, add 20.65 g of the above-mentioned obtained semisiloxane, 82 ml of toluene, and 3.0 g of 10% TMAH aqueous solution to a reaction vessel comprising a stirrer, a Dean-Stark apparatus (dean-stark apparatus) and a cooling tube, and slowly Heat slowly to allow the water to evaporate. Then it was heated to 130° C., and the toluene was recondensed at reflux ...

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Abstract

Provided are a transparent layered object excellent in terms of wear resistance and scratch resistance and a process for producing the transparent layered object. The transparent layered object (1) comprises a platy transparent resinous base (2) and a transparent protective film (3) disposed on one surface of the base (2). By setting the heat resistance, etc. of the base (2) to given ranges, a transparent layered object (1) that is lightweight and has given load resistance is rendered possible. The protective film (3) contains a silicone resin composition comprising 9 wt% or more cage silsesquioxane and contains, under given conditions, fine particles (4) comprising fine glass particles or fine metal oxide particles, the surface of which has been treated with a silane compound. Due to this, a transparent layered object (1) excellent in terms of wear resistance and scratch resistance is rendered possible.

Description

technical field [0001] The present invention relates to a transparent laminate used as a window glass substitute and the like. Specifically, it relates to a transparent laminate having required strength and transparency and a method for manufacturing the transparent laminate. Background technique [0002] Vehicles are required to be lightweight in order to reduce fuel consumption. Therefore, until now, attempts have been made to develop window materials for vehicles using a resin whose specific gravity is smaller than that of glass as a base material. [0003] Maintaining transparency in the actual use environment is an important issue for window materials for vehicles. However, resins generally have poor abrasion resistance and poor scratch resistance against scratches caused by car wash brushes, etc. Therefore, there is a problem in that transparency cannot be sufficiently ensured in the case of resin-made window materials. [0004] As techniques related to the above-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/00B05D7/24C08J7/04C09D183/04C08J7/043C08J7/046
CPCC08J2369/00C08J2483/04C08J7/047C09D183/04B32B27/00C08J2333/00Y10T428/24967Y10T428/252Y10T428/256C08J7/0427C08J7/043C08J7/046C08K9/06B60J1/2094
Inventor 桂大词山根贵和
Owner MAZDA MOTOR CORP