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Resin composition

A technology of resin composition and compound, applied in the direction of single-component polyester rayon, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of deterioration of mechanical properties, insufficient compatibility, insufficient improvement, etc., to achieve Improved compatibility, no deterioration of the operating environment, and the effect of suppressing the generation of bad odors

Inactive Publication Date: 2015-03-18
TEIJIN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The object of the present invention is to solve the following problems in the prior art: insufficient improvement of various physical properties due to insufficient compatibility between polylactic acid resin and thermoplastic resin other than polylactic acid, deterioration of mechanical properties, and poor appearance To provide a polymer blend resin composition with improved compatibility between lactic acid resin and thermoplastic resins other than polylactic acid

Method used

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Examples

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Embodiment

[0237] The following examples illustrate the present invention in detail, but the present invention is not limited by them. In addition, each value in this Example was calculated|required by the following method.

[0238] (1) Weight average molecular weight (Mw) and number average molecular weight (Mn) of the polymer:

[0239] The weight-average molecular weight and number-average molecular weight of the polymer were measured by gel permeation chromatography (GPC), and were calculated in terms of standard polystyrene.

[0240] GPC measurement was performed using the following detector and column, using chloroform as the eluent, injecting 10 μl of a sample with a concentration of 1 mg / ml (chloroform containing 1% hexafluoroisopropanol) at a temperature of 40° C. and a flow rate of 1.0 ml / min.

[0241] Detector: Differential refractometer (manufactured by Shimadzu Corporation) RID-6A.

[0242] Column; Tosoh Corporation TSKgelG3000HXL, TSKgelG4000HXL, TSKgelG5000HXL and TSKguar...

manufacture example 1

[0265] [Manufacturing Example 1] Poly L-lactic acid resin (A1):

[0266] Add 0.005 parts by weight of tin octoate to 100 parts by weight of L-lactide (manufactured by Musashino Chemical Research Institute, optical purity 100%), and in a reactor with a stirring blade under a nitrogen atmosphere, the After reacting at 180° C. for 2 hours, adding phosphoric acid equivalent to 1.2 times the amount of tin octylate, the remaining lactide was removed at 13.3 Pa, and the poly L-lactic acid resin (A1) was obtained. The obtained poly-L-lactic acid resin had a weight average molecular weight of 152,000, a melting enthalpy (ΔHmh) of 49 J / g, a melting point (Tmh) of 175°C, a glass transition temperature (Tg) of 55°C, and a carboxyl group concentration of 13 equivalents / ton .

manufacture example 2

[0267] [Manufacturing Example 2] Poly D-lactic acid resin (A2):

[0268]In place of L-lactide in Production Example 1, D-lactide (manufactured by Musashino Chemical Research Institute, optical purity 100%) was used, and the same operation as in Production Example 1 was performed to obtain poly D- Lactic acid resin (A2). The obtained poly-D-lactic acid resin (A2) had a weight-average molecular weight of 151,000, a melting enthalpy (ΔHmh) of 48 J / g, a melting point (Tmh) of 175°C, a glass transition temperature (Tg) of 55°C, and a carboxyl group concentration of 14 Equivalent / ton.

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Abstract

A resin composition including a polylactic acid resin, a thermoplastic resin other than a polylactic acid, and a carbodiimide compound having a specific cyclic structure. Provided is a resin composition that exhibits improved compatibility between the polylactic acid resin and the thermoplastic resin other than a polylactic acid.

Description

technical field [0001] The present invention relates to a resin composition containing a polylactic acid resin and a thermoplastic resin other than polylactic acid. In more detail, it is related with the resin composition which the compatibility of a polylactic acid resin and the thermoplastic resin other than polylactic acid improved. Background technique [0002] The present invention relates to a resin composition containing a polylactic acid resin and a thermoplastic resin other than polylactic acid. In more detail, it is related with the resin composition which the compatibility of a polylactic acid resin and the thermoplastic resin other than polylactic acid improved. [0003] In recent years, for the purpose of protecting the global environment, biodegradable polymers that decompose in the natural environment have attracted attention and are being studied all over the world. Aliphatic polyesters such as polylactic acid, polyhydroxybutyrate, and polycaprolactone are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08K5/29C08L67/00C08L69/00C08L77/00C08L101/16
CPCC08J2367/04D01F6/92C08L69/00C08J2367/02C08J2377/00C08L77/00C08K5/35C08L101/16C08J2369/00C08J5/18D01F1/10C08L67/00C08L67/04C08L2205/02C08L2207/04C08K5/29
Inventor 庄司信一郎野野川龙司
Owner TEIJIN LTD
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