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Processing additive, molding composition, masterbatch of processing additive and molding article

A technology of processing aids and compositions, which is applied in the field of molding compositions and processing aids, can solve the problems of low dispersion of fluoropolymers, die accumulation, etc. The effect of shortening the melt fracture elimination time

Active Publication Date: 2014-08-27
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fluorine-containing polymers with high viscosity have low dispersibili

Method used

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  • Processing additive, molding composition, masterbatch of processing additive and molding article
  • Processing additive, molding composition, masterbatch of processing additive and molding article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～13 and comparative example 1～9

[0111] (manufacturing of processing aids)

[0112] Each fluoropolymer was pulverized using a pulverizer (manufactured by Kawata Corporation, Rapid R-1528), and 7 parts by weight of talc (manufactured by Nippon Talc Co., Ltd., P-2) and 3 parts by weight were added to 100 parts by weight of the fluoropolymer. Parts of silicon oxide (manufactured by GRACE, SYLOBLOC 45H) were mixed with a small pulverizer (Millser 300DG, manufactured by Iwatani Sangyo Co., Ltd.) to produce a processing aid.

[0113] In the case of Examples 4 to 7, 9 to 11, and 13 and Comparative Examples 3 to 5, and 7 to 9, a predetermined amount of polyethylene glycol (manufactured by DOW CHEMICAL, CARBOWAX TM SENTRY TM POLYETHYLEN GRYCOL 8000 GRANULAR NF, hereinafter "PEG". ), by tumbling to manufacture processing aids containing PEG.

[0114] (manufacturing of masterbatch)

[0115] Thereafter, in linear low-density polyethylene (manufactured by EXXON MOBIL, LLDPE 1002YB), the above-mentioned processing ai...

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Abstract

The present invention provides a processing aid capable of improving moldability and reducing the added amount of the processing aid at a highly dispersible Mooney viscosity dispersed in a melt-processable resin. The present invention relates to a processing aid comprising a fluorine-containing polymer having an acid value of 0.5 KOHmg/g or more.

Description

technical field [0001] (Cross-reference to related application) [0002] This application claims the benefit of US Provisional Application No. 61 / 237613 filed August 27, 2009 under 35 U.S.C. 119(e). The entire disclosures of these applications are incorporated herein by reference. [0003] The present invention relates to a processing aid, a composition for molding, a masterbatch for a processing aid, and a molded article. Background technique [0004] In the processing of melt-processable thermoplastic polymers, extrusion at a faster speed is required in order to increase productivity and to achieve cost reduction. However, melt-processable thermoplastic polymer compositions always have a critical shear rate, and if this rate is exceeded, a surface roughening state called melt fracture occurs, and good molded articles cannot be obtained. [0005] In order to ameliorate these disadvantages, and to achieve faster extrusion speeds, the use of fluoropolymers as processing ai...

Claims

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Application Information

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IPC IPC(8): C08F14/18C08F214/22C08F214/26C08F214/28C08J3/22C08K3/00C08K5/00C08L23/00C08L27/12
CPCC08F214/28C08L23/0815C08F214/26C08J2423/00C08L2205/03C08F214/186C08L71/02C08L2205/06C08L27/16C08J3/226C08F214/18C08F214/22C08F214/184C08L2666/02C08L2666/22C08F14/18C08J3/22C08L23/00C08L27/12
Inventor 村上真司冈西谦冈正彦
Owner DAIKIN IND LTD
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