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

Polypropylene composition, polypropylene sheet, method for producing same, and secondary molding

A polypropylene composition and a technology for a manufacturing method, applied in the field of polypropylene compositions, can solve the problems of reduced impact resistance and the like, and achieve the effects of excellent impact resistance and excellent heat resistance

Active Publication Date: 2021-09-07
FP CORP +1
View PDF25 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the molded article of the polypropylene composition obtained in this way is used at a low temperature, there is a problem that the impact resistance decreases.

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
  • Polypropylene composition, polypropylene sheet, method for producing same, and secondary molding
  • Polypropylene composition, polypropylene sheet, method for producing same, and secondary molding
  • Polypropylene composition, polypropylene sheet, method for producing same, and secondary molding

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0101] The titanium compound used for the preparation of component (A) suitably has the general formula: Ti(OR) g x 4-g The tetravalent titanium compound shown. In the formula, R is a hydrocarbon group, X is a halogen, and 0≦g≦4. More specifically, titanium compounds include: TiCl 4 、TiBr 4 、TiI 4 Titanium tetrahalide; Ti(OCH 3 )Cl 3 , Ti(OC 2 h 5 )Cl 3 , Ti(O n -C 4 h 9 )Cl 3 , Ti(OC 2 h 5 )Br 3 , Ti(OisoC 4 h 9 )Br 3 and other alkoxytitanium trihalides; Ti(OCH 3 ) 2 Cl 2 , Ti(OC 2 h 5 ) 2 Cl 2 , Ti(O n -C 4 h 9 ) 2 Cl 2 , Ti(OC 2 h 5 ) 2 Br 2 Titanium dihalide alkoxide; Ti(OCH 3 ) 3 Cl, Ti(OC 2 h 5 ) 3 Cl, Ti(O n -C 4 h 9 ) 3 Cl, Ti(OC 2 h 5 ) 3 Trialkoxytitanium halides such as Br; Ti(OCH 3 ) 4 , Ti(OC 2 h 5 ) 4 , Ti(O n -C 4 h 9 ) 4 And so on tetraalkoxytitanium and so on. Among these, halogen-containing titanium compounds are preferred, especially titanium tetrahalides, and titanium tetrachloride is more preferred. ...

Embodiment

[0148] Hereinafter, although an Example demonstrates this invention in more detail, this invention is not limited to these Examples.

[0149]

[0150] [Ethylene content in copolymer]

[0151] Regarding the ethylene content in the copolymer, for samples dissolved in a mixed solvent of 1,2,4-trichlorobenzene / deuterated benzene, JNM LA-400 ( 13 C resonant frequency 100MHz), according to the utilization 13 The values ​​measured by the C-NMR method were calculated.

[0152] [haze]

[0153] The haze of the polypropylene sheet was measured by the method described above using a haze meter (manufactured by Murakami Color Technology Laboratory Co., Ltd., HM-150).

manufacture example 1

[0154] [Production Example 1: Preparation of Solid Catalyst Component (1)]

[0155] The solid catalyst component was prepared according to the preparation method described in the examples of Japanese Patent Application Laid-Open No. 2011-500907. Specifically as follows:

[0156] Into a 500 mL four-necked round bottom flask flushed with nitrogen, introduce 250 mL of TiCl at 0°C 4 . While stirring, add 10.0 g of fine spherical MgCl 2 1.8C 2 h 5 OH (manufactured according to the method described in Example 2 of USP-4,399,054, but operated at 3000 rpm instead of 10000 rpm), and 9.1 mmol of diethyl 2,3-(diisopropyl)succinate. The temperature was raised to 100°C and held for 120 minutes. Next, stirring was stopped, the solid product was allowed to settle, and the supernatant was aspirated. Next, repeat the following operation 2 times: Add 250 mL of new TiCl 4 , let the mixture react at 120 °C for 60 min, and aspirate the supernatant. The solid was washed 6 times with anhydr...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The present invention provides a sheet made of biaxially stretched polypropylene which is excellent in transparency, rigidity, heat resistance, uniform elongation, and impact resistance at low temperature, and which is easily thermoformable, and a method for producing the same, and the use of the sheet A secondary molded body (container, etc.) obtained by thermoforming a material, and a polypropylene composition suitable for manufacturing the sheet. The polypropylene composition of the present invention is characterized by comprising an ethylene-containing propylene-based polymer having an ethylene content of less than 1% by mass and a molecular weight distribution (Mw / Mn) of 6, and a crystal nucleating agent. The amount of xylene-insoluble components at ~20 and 25°C is more than 96.5% by mass and not more than 99.5% by mass, and the stereoregularity (mmmm) of xylene-insoluble components is 97.5% to 99.5%. 100 parts by mass of the propylene-based polymer containing ethylene is less than 0.18 parts by mass, and the melt flow rate is 1 g / 10 minutes to 15 g / 10 minutes.

Description

technical field [0001] The present invention relates to a polypropylene composition, a polypropylene sheet comprising the polypropylene composition, a method for producing the polypropylene sheet, and a secondary molding of the polypropylene sheet. Background technique [0002] Polypropylene is inexpensive, has excellent rigidity, moisture resistance, and heat resistance, and is suitable as a material for sheets used in food packaging, fiber packaging, and the like. For example, polypropylene has been used as a heat-resistant food container, but there is a problem in strength. In order to compensate for this problem, the container is thickened or a large number of ribs are added to deal with it, but this will incur costs. Problems with additions or contents that cannot be seen clearly. In addition, transparency is required so that the contents of food containers can be confirmed, but polypropylene is a crystalline resin and is originally a translucent sheet, so it is known ...

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): C08L23/16C08K5/00C08F210/16C08F210/02C08F4/646C08F4/642
CPCC08F210/16C08K5/0083C08L23/14C08F210/02C08F4/6465C08F4/6425
Inventor 猪原康正西江昌展上野晋吾池田正幸中岛武栗山稔别府隆幸坂井和彦
Owner FP 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