Unlock instant, AI-driven research and patent intelligence for your innovation.

Flame-retardant resin composition, process for producing the same, and method of molding the same

A technology of resin composition and flame retardancy, which is applied in the field of resin composition, can solve the problem of low usefulness, and achieve the effect of industrial value, usefulness and great industrial value

Inactive Publication Date: 2008-11-26
PANASONIC CORP
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even if environmental resins have satisfactory properties in terms of rigidity, impact strength, and heat resistance, their usefulness is extremely low as long as they do not have flame retardancy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flame-retardant resin composition, process for producing the same, and method of molding the same
  • Flame-retardant resin composition, process for producing the same, and method of molding the same
  • Flame-retardant resin composition, process for producing the same, and method of molding the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 70 wt% of polylactic acid (PLA) synthesized from corn and 30 wt% of polybutylene succinate (PBS) were kneaded using a twin-screw mixer to produce pellets. Here, the purpose of mixing PBS is to improve heat resistance.

[0050] In this example, iron acetylacetonate (Fe(acac) 3 ) by SiO 2 supported by porous bodies. Fe(acac) 3 The loading ratio of the porous body was 60 parts by weight with respect to 100 parts by weight of the porous body. Using a twin-shaft mixer, at 185 ° C, for 90 wt% of the particles obtained in step 1, and loaded with Fe(acac) 3 SiO 2 10wt% of the porous body is kneaded (step 2), and molded into a test piece of 125mm × 13mm × 3.2mm (the forming temperature is 180°C, and the pressure is 120kg / cm 2 ) (step 3). SiO used in this example 2 The porous body has a porosity of about 45 to 50 vol%, and a particle diameter of about 100 nm to 1000 nm. The SiO 2 When the porous body is kneaded with the resin, it is crushed by shearing force, and finall...

Embodiment 2

[0053] In the particles obtained in step 1 of Example 1, kneading was not affected by SiO 2 Iron acetylacetonate (Fe(acac) 3 ) powder, the Fe(acac) required to obtain a flame-retardant resin composition suitable for UL standard V0 was obtained 3 the mixing ratio.

[0054] The matching sequence of the composition in this embodiment is the same as that of Example 1, and can be used figure 1 flow chart representation. In this example, the granules obtained in step 1 and Fe(acac) 3 Carry out kneading (step 2), press molding is the test piece of 125mm * 13mm * 3.2mm (forming temperature is 180 ℃, and pressure is 120kg / cm 2 ) (step 3). In this example, changing the particle and Fe(acac) 3 A number of test pieces were produced and evaluated for their flame retardancy. Fe(acac) 3 is not covered by SiO 2 The porous body is supported and used in the form of a powder having a particle diameter of about 2 to 80 μm. At this time, the powder is not pulverized by kneading, but is d...

Embodiment 3

[0056] In the same procedure as in Example 1, polylactic acid (PLA) and polybutylene succinate (PBS) were kneaded to produce pellets (step 1).

[0057] The matching sequence of the composition in this embodiment is the same as that of Example 1, and can be used figure 1 flow chart representation. In this example, SiO 2 The flame retardant component carried by the porous body is zinc borate. Zinc borate was supported at a ratio of 42 parts by weight with respect to 100 parts by weight of the porous body. Using a twin-shaft mixer, at 185°C, 90 wt% of the particles obtained in step 1, zinc borate-loaded SiO 2 10wt% of the porous body is kneaded (step 2), and molded into a test piece of 125mm × 13mm × 3.2mm (the forming temperature is 180°C, and the pressure is 120kg / cm 2 ) (step 3). SiO used in this example 2 Porous body and SiO used in Example 1 2 The porous body is the same, and through kneading, it finally becomes nano-sized particles dispersed in the resin. In additio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

At least one resin ingredient selected among biodegradable resins and resins derived from plants is kneaded together with an ingredient imparting flame retardancy to obtain a flame-retardant resin composition. This resin composition enables biodegradable or plant-derived resins friendly to the global environment, such as polylactic acid and polybutylene succinate, to be applied to the housings of domestic electrical appliances, etc. In particular, when polylactic acid is used, use of acetylacetonatoiron as the flame retardant can provide a resin composition with excellent flame retardancy as a halogen-free material.

Description

technical field [0001] The present invention relates to a resin composition in which flame retardancy is imparted to biodegradable resins and resins made from plant resources, its production method, and its molding method. Background technique [0002] In recent years, resins (or plastics) that can be decomposed by bacteria after being buried in soil have attracted attention. These resins, known as biodegradable resins (or biodegradable plastics), have the property of decomposing in the presence of aerobic bacteria and decomposing into water (H 2 O) and carbon dioxide (CO 2 ) characteristics. Biodegradable resins have been put into practical use in the field of agriculture, and are also put into practical use as packaging materials for disposable goods and as materials for composting (compost) garbage bags. [0003] When biodegradable resins are decomposed by bacteria in the soil, when they are disposed of, CO can be significantly reduced compared to conventional incinera...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/12C08L67/00C08L101/00
Inventor 山下武彦武田邦彦谷美幸久角隆雄
Owner PANASONIC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com