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Polyester synthetic resin additive and plasticizer for biological degradability resin

A technology for synthetic resins and polyesters, applied in the field of additives for polyester synthetic resins and compositions of polyester synthetic resins

Inactive Publication Date: 2004-05-26
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing technologies cannot solve the problems caused by such plasticizer-containing polyester resin compositions

Method used

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  • Polyester synthetic resin additive and plasticizer for biological degradability resin
  • Polyester synthetic resin additive and plasticizer for biological degradability resin
  • Polyester synthetic resin additive and plasticizer for biological degradability resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12 and comparative example 1～4

[0189] 100 parts of amorphous polyester resin (Tsunami GS2: produced by イ-ストマンクミカル company, glass transition temperature 81 ° C, semi-crystallization time is infinite), 0.8 parts of linear sodium dodecylbenzenesulfonate, and as shown in Table 1 and Compositions comprising plasticizers and antiblocking agents having the types and amounts shown in Table 2 were kneaded for 15 minutes at 160° C. on a 6-inch rubber roll machine, and then the sliding properties were evaluated by the following method. In addition, this resin composition was made into the test piece of thickness 0.5mm at 190 degreeC with the press molding machine.

[0190] The softness, blocking resistance, and surface state of the prepared test pieces were evaluated by the following methods. The results are shown in Table 1 and Table 2.

[0191]

[0192] Punch the test piece into a No. 3 dumbbell shape, place it in a constant temperature room with a room temperature of 23° C. and a humidity of 50% for 24 hours, an...

Embodiment 13～18 and comparative example 5～6

[0221] 100 parts of amorphous polyester resin (Tsunami GS2: produced by イ-ストマンクミカル company, glass transition temperature 81 ° C, semi-crystallization time is infinite), 0.8 parts of linear sodium dodecylbenzenesulfonate, and as shown in Table 3 After kneading the composition of plasticizer and anti-blocking agent of the kind and amount shown at 160° C. for 15 minutes on a 6-inch rubber roll machine, the sliding property was evaluated by the following method. In addition, this resin composition was made into the test piece of thickness 0.5mm at 190 degreeC with the press molding machine.

[0222] The prepared test pieces were evaluated for transparency by the following method, and evaluated for flexibility and surface state by the above-mentioned method. Further, in order to evaluate its heat resistance, the test piece was placed in an oven controlled at 60°C for 4 hours, and after cooling at room temperature, the softness, transparency and surface state were similarly evaluate...

Embodiment 19～30 and comparative example 7

[0235] As a biodegradable resin, 100 parts of polylactic acid resin (such as produced by Mitsui Chemicals, Inc., trade name Leysia H-280) obtained after vacuum drying at 50° C. for 24 hours, and as shown in Table 3 and Table 4 The type and amount of plasticizer and anti-blocking agent formed composition were mixed for 15 minutes at 130°C on a 6-inch rubber roll machine, and were mixed in the same way as in Example 1 (but the roll temperature was changed to 130°C) Slidability was evaluated. In addition, this resin composition was made into the test piece of thickness 0.5mm at 190 degreeC with the press molding machine.

[0236] The softness of the prepared test piece was evaluated by the following method, and the blocking resistance and surface state were evaluated by the same method as in Example 1. The results are shown in Table 4 and Table 5.

[0237]

[0238] Punch the test piece into a No. 3 dumbbell shape, place it in a constant temperature room with a room temperatur...

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Abstract

An additive to a polyester base synthetic resin containing a plasticizer that comprises at least one compound selected from hydroxy aliphatic monocarboxylic acid ester and carboxylic acid amide is provided. Also, a polyester base synthetic resin composition comprising a polyester-base synthetic resin, a plasticizer, and at least one compound selected from hydroxy aliphatic monocarboxylic acid ester and carboxylic acid amide are also provided. Further, the invention provides a plasticizer for biodegradable resins that can impart flexibility without disturbing the transparency of the biodegradable resins. The plasticizer for biodegradable resins comprises a compound selected from (i) to (III) below. A biodegradable composition comprises the plasticizer. (i) An ester selected from a hydroxy aromatic carboxylic acid ester and a hydroxy alicyclic carboxylic acid ester, (ii) a compound having a sulfonamide group, and (iii) an ester of a polycarbonate diol containing a structural unit (I) and having a hydroxy group at each of both ends with an aromatic monocarboxylic acid (II), condensed polycyclic aromatic monocarboxylic acid or the like. (wherein n denotes an integer of 2 to 6, X<1 >denotes H, OH, an alkyl group of C1-22 or the like, and m denotes an integer of 1 to 5.

Description

technical field [0001] The present invention relates to an additive for polyester synthetic resin containing a plasticizer and a composition of polyester synthetic resin. Furthermore, the present invention relates to a plasticizer for biodegradable resins and a composition for biodegradable resins. Background technique [0002] Amorphous polyester resins with no definite melting point are used in the field of architectural decorative materials such as decorative films covering laminates, in food packaging such as food trays and blister packs, and in the printing of catalog cards and magnetic cards. In addition, polyester resins with good biodegradability such as polylactic acid are also used in the field of agricultural civil materials such as filament yarns, nets, gardening materials, and seedling pots, as well as letter boxes (envelopes) with windows, shopping bags, and composts. Bags, stationery, miscellaneous goods, etc. However, they are currently used in any field of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/10C08K5/20C08K5/435
CPCC08K5/435C08K5/10C08K5/20C08L67/00
Inventor 武中晃土桥正明
Owner KAO CORP
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