Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Thermoplastic polymer composition and molded article

A thermoplastic polymer and composition technology, applied in the directions of graft polymer adhesives, synthetic resin layered products, adhesive types, etc., can solve the problems of complicated steps, increased manufacturing costs, low elongation, etc., Achieve excellent heat resistance and sufficient adhesion

Active Publication Date: 2013-04-03
KURARAY CO LTD
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the methods disclosed in Patent Documents 1 to 6 not only have complicated steps, but also have a low elongation rate, and there is a problem that the production cost increases.

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
  • Thermoplastic polymer composition and molded article
  • Thermoplastic polymer composition and molded article

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0145] The preparation of the thermoplastic polymer composition of the present invention is not particularly limited.

[0146] It may be prepared by any method as long as it can uniformly mix the above-mentioned components used in the thermoplastic polymer composition of the present invention, and a melt-kneading method is usually used. Melting and kneading can be carried out using melting and kneading devices such as a single-screw extruder, a twin-screw extruder, a kneader, a batch mixer, a roll machine, a Banbury mixer, and usually, preferably, can be carried out at 170 to Melt-kneading was carried out at 270° C. to obtain the thermoplastic polymer composition of the present invention.

[0147] The thermoplastic polymer composition of the present invention obtained in this way has a hardness (hereinafter sometimes referred to as "A hardness") obtained by the JIS-A method of JIS K 6253. It is preferably 93 or less, more preferably 30 to 85, and even more preferably 40-75, p...

Embodiment 1～4

[0206] Examples 1-4, Comparative Examples 1-2 (production of thermoplastic polymer composition sheet)

[0207] Using a batch mixer, the raw materials described in Table 1 were melt-kneaded at the ratio shown in Table 1 under the conditions of 230° C. and screw rotation speed of 200 rpm. The resulting kneaded product was molded at 230°C under a load of 100kgf / cm using a compression molding machine. 2 (9.8N / mm 2 ) under the conditions of compression molding for 3 minutes, thereby obtaining a thermoplastic polymer composition sheet with a thickness of 1 mm.

[0208] The physical properties and characteristics of the obtained thermoplastic polymer composition sheet were evaluated according to the above-mentioned measurement methods. The results are shown in Table 1.

[0209] [Table 1]

[0210]

[0211] As can be seen from Table 1, the thermoplastic polymer compositions obtained in Examples 1 to 4 by blending the polyvinyl acetal resin (B) with a Tg of 80 to 130°C are excell...

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
glass transition temperatureaaaaaaaaaa
degree of acetalizationaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Provided is a thermoplastic polymer composition which has excellent flexibility, mechanical properties, and molding processability, can adhere to a ceramic, a metal, or a synthetic resin without performing a primer treatment or the like, and has high adhesiveness even if exposed to a high-temperature environment, and also provided is a molded article obtained using the thermoplastic polymer composition. Specifically, provided is a thermoplastic polymer composition comprising: 100 parts by mass of (A) a thermoplastic elastomer which is a block copolymer having a polymer block containing an aromatic vinyl compound unit and a polymer block containing a conjugated diene compound unit or a hydrogenated product thereof; 1 to 100 parts by mass of (B) a polyvinyl acetal resin having a glass transition temperature of 80 to 130 C; and 0.1 to 300 parts by mass of (C) a softener.

Description

technical field [0001] The present invention relates to a thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and molding processability, and which can be used without primer treatment, etc. It can also be bonded to ceramics, metals, or synthetic resins, and has high adhesiveness (hereinafter, sometimes referred to as heat resistance) even in environments above 60°C. Background technique [0002] Ceramics, metals, and synthetic resins that are excellent in durability, heat resistance, and mechanical strength are widely used in various applications such as home appliances, electronic parts, machine parts, and automobile parts. Depending on the application, component configuration, and method of use, the above-mentioned members may be used by bonding or compounding an elastic member with excellent flexibility in order to be fixed to other structural members, or for purposes such as shock absorption, damage prevention, or sealing. . [...

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 Applications(China)
IPC IPC(8): C08L53/02C08L29/14C09J11/06C09J129/14C09J151/00C09J153/02
CPCC08L29/14C09J129/14C09J5/06C08L53/02B32B15/08B32B7/12B32B27/08C09J147/00B32B15/043C09J2400/163C09J2400/226C09J2453/00C09J2400/123C09J153/02C09J2459/00B32B18/00C04B35/63404C04B35/63408C04B35/63424C04B35/63432C04B35/63448C04B35/63452C04B35/63456C04B35/63464C04B35/63468C04B35/63476C04B35/63488C04B35/645C04B37/00C04B37/008C04B37/028C04B2237/30C04B2237/32C04B2237/34C04B2237/343C04B2237/346C04B2237/348C04B2237/36C04B2237/365C04B2237/368C04B2237/38C04B2237/40C04B2237/402C04B2237/403C04B2237/405C04B2237/406C04B2237/407C04B2237/408C08L91/00Y10T428/2804Y10T428/2878Y10T428/2848C09J11/06
Inventor 南出麻子增田未起男
Owner KURARAY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com