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Resin composition

A technology of resin composition and biodegradable resin, applied in the field of resin composition, can solve the problems of inferior mechanical properties such as tensile strength or tensile elastic modulus of biodegradable resin, decreased strength, limited use, etc., and achieves superior mechanical properties, Excellent dimensional stability

Inactive Publication Date: 2011-10-26
SONY CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mechanical properties such as tensile strength and tensile modulus of biodegradable resins are generally inferior to those of petroleum resins, and their strength decreases due to hydrolytic degradation, so their use is greatly limited

Method used

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  • Resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 50 parts by mass of polybutylene succinate as a biodegradable resin (Beeneng #1010 manufactured by Showa Polymer Co., Ltd., melting point is 110° C., number average molecular weight is 68,000, MFR is 10 g / 10 minutes) as 50 parts by mass of crushed scallop shells (materials passing through a 100-mesh sieve) of inorganic fillers, 0.5 parts by mass of Akunet 105 (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a compound having two or more isocyanate functional groups, melted Mix to obtain pellets of the resin composition. Using an injection molding machine, a test piece having a length of 30 mm x a width of 15 mm x a thickness of 2 mm was molded from the pellets.

Embodiment 2

[0047] Test pieces were molded in the same manner as in Example 1 except that ground rice husks (those that passed through a 100-mesh sieve) were used instead of ground shells of scallops.

Embodiment 3

[0049] Test pieces were molded in the same manner as in Example 1, except that granular calcium carbonate (surface-treated with stearic acid and passed through a 100-mesh sieve) was used instead of ground scallop shells.

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PUM

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Abstract

A resin composition is characterized by comprising (A) a biodegradable resin, (B) either at least one inorganic filler selected from among fibrous inorganic fillers, plate-shaped inorganic fillers, rod-shaped inorganic fillers, and particulate inorganic fillers, or a water-repellent organic filler, and (C) a compound or resin that has at least two isocyanate groups. Though the resin composition contains a biodegradable resin as the main resin component, the resin composition can provide molded articles having excellent hydrolysis resistance, mechanical characteristics, and dimensional stability.

Description

technical field [0001] The present invention relates to a resin composition capable of providing a molded body excellent in hydrolysis resistance, mechanical properties and dimensional stability. Background technique [0002] Petroleum resins are used as resin materials for cases and cases for various purposes, casings of home appliances, etc. due to their superior mechanical properties, dimensional stability, and processability. However, in recent years, as awareness of environmental problems has increased, it has been proposed to use biodegradable resins that can be degraded in the natural environment instead of conventional petroleum resins. However, mechanical properties such as tensile strength and tensile modulus of biodegradable resins are generally inferior to those of petroleum resins, and their strength decreases due to hydrolytic degradation, so their use is greatly limited. [0003] Therefore, as a material for solving such a problem, a resin composition in whic...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08K3/00C08K5/29C08L67/00C08L97/00C08L101/16
CPCC08L67/02C08K5/29C08K7/00C08L2666/02
Inventor 香山俊富田实清水有希子小谷辉充高桥圭
Owner SONY CORP