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Insert-molded product

A molding product, polycarbonate resin technology, applied in the direction of synthetic resin layered products, layered products, vehicle parts, etc., can solve problems such as insufficient fluidity of molding resins

Active Publication Date: 2012-05-23
TEIJIN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] One of the reasons for the need for supports such as the above-mentioned support layer and protective film is insufficient fluidity of the molding resin.
In general, polycarbonate is widely used in the above-mentioned molded products, but there is a limit to higher fluidization while maintaining mechanical properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0180] The following were used as the functional resin film. Use a mixed solution of ethyl acetate / methyl ethyl ketone / isopropanol at a ratio of 2:2:1 to prepare "NT-HILAMIC" (registered trademark) 701R produced by Dainichi Seika Industry Co., Ltd. to a printing viscosity of 15 seconds ( Viscosity Cup Zahn Cup#3), the acrylic base film was pattern-printed by gravure printing method, dried in an oven at 70° C. for 10 seconds, and a 35 μm decorative layer was provided.

[0181] The polycarbonate resin for base materials was produced by the following method.

[0182] Add 1,608 parts by weight (11 moles) of isosorbide (hereinafter referred to as ISS sometimes) and 2,356 parts by weight (11 moles) of diphenyl carbonate, and add 1.0 parts by weight of tetramethylammonium hydroxide (relative to carbonic acid 1 mole of diphenyl ester component is 1×10 -4 mol) and sodium hydroxide 1.1×10 -3 Parts by weight (relative to 1 mole of diphenyl carbonate component is 0.25×10 -6 mol) was f...

Embodiment 2

[0193] 66.42 parts by weight of isosorbide (0.45 mole), 11.52 parts by weight (0.15 mole) of 1,3-propanediol (hereinafter referred to as PD) and 129.81 parts by weight (0.61 mole) of diphenyl carbonate are added in the reactor, and 1.0 parts by weight of tetramethylammonium hydroxide (1×10 with respect to 1 mole of diphenyl carbonate component -4 mol) and sodium hydroxide 1.1×10 -3 Parts by weight (relative to 1 mole of diphenyl carbonate component is 0.25×10 -6 mol) as a polymerization catalyst, the same test as in Example 1 was carried out to perform melt polymerization of the polycarbonate resin. The obtained polymer had a specific viscosity of 0.25, a glass transition temperature of 116°C, and a 5% weight loss temperature of 338°C. In the same manner as in Example 1, this resin was used as a molding material, and an insert-molded article with the functional resin film was produced and evaluated.

Embodiment 3

[0195] 804 parts by weight (5.5 moles) of isosorbide, 1,256 parts by weight (5.5 moles) of bisphenol A (BPA) and 2,356 parts by weight (11 moles) of diphenyl carbonate were added to the reaction tank, and tetramethylammonium hydroxide 1.0 parts by weight (relative to 1 mole of diphenyl carbonate component is 1×10 -4 mol) and sodium hydroxide 1.1×10 -3 Parts by weight (relative to 1 mole of diphenyl carbonate component is 0.25×10 -6 mol) was used as a polymerization catalyst, and the same operation as in Example 1 was performed to perform melt polymerization of the polycarbonate resin. The obtained polymer had a specific viscosity of 0.35, a glass transition temperature of 153°C, and a 5% weight loss temperature of 366°C.

[0196] In the same manner as in Example 1, this resin was used as a molding material, and an insert-molded article with the functional resin film was produced and evaluated.

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Abstract

Provided is an insert-molded product that comprises a biomass-derived polycarbonate resin, has good mechanical strength and melt flow characteristics, and has high surface hardness. The provided insert-molded product is molded by first inserting a functional resin film into a mold and then injecting the polycarbonate resin. The provided insert-molded product is characterized in that the aforementioned polycarbonate resin contains a structural unit derived from the dihydroxy compound represented by formula (a).

Description

technical field [0001] The present invention relates to insert moldings made of specific polycarbonate resins. More specifically, it relates to an insert-molded article made of a carbonate polymer containing isosorbide, which is a biomass resource, having good mechanical strength, high fluidity, and high surface hardness. Background technique [0002] In recent years, due to concerns about the depletion of petroleum resources and the increase in carbon dioxide in the air that causes the global warming effect, biomass resources that do not depend on petroleum as raw materials and do not increase carbon dioxide even if burned, and that can maintain carbon neutrality have been under great pressure. There is great concern, even in the field of polymers, that biomass plastics produced from biomass resources are being extensively developed. [0003] A representative example of biomass plastics is polylactic acid. Even among biomass plastics, polylactic acid has high heat resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B29C45/14C08G64/02
CPCB29C45/14778B29K2069/00B32B27/36C08G64/0208B32B27/08B32B27/20B32B27/30B32B2307/306B32B2307/546B32B2457/00B32B2605/08Y10T428/31507B32B2367/00
Inventor 木下真美
Owner TEIJIN LTD
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