Title:
CHAIN EXTENDER MASTERBATCH FOR PET EXTRUSION FOAMING, PREPARATION METHOD THEREFOR, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/207951
Kind Code:
A1
Abstract:
The present invention relates to a chain extender masterbatch for PET extrusion foaming, a preparation method therefor, and a use thereof. The masterbatch is mainly prepared by the following components in parts by weight: 5 to 30 parts of PMDA, 25 to 90 parts of PBT, and 5 to 70 parts of POE+POE-g-GMA, wherein POE accounts for a weight percentage of 0 to 85% of POE+POE-g-GMA, and the melting temperature of PBT is 170 to 225℃. The preparation method comprises: melting and blending the above components at a blending temperature of 180 to 230℃ and a screw speed of 100 to 500rpm, and air-cooled pelletizing or hot die face pelletizing. The masterbatch can be used during extrusion foaming of fiber grade PET, film grade PET, bottle grade PET, engineering plastics grade PET, and recycled PET. The present application uses PMDA as a chain extender, and uses a complex of a polyester, PBT, having a low melting point, and polyolefin elastomers, POE and POE-g-GMA, as a carrier for the chain extender. As such, the chain extension efficiency of the masterbatch and the performance of the foaming product are significantly increased. Moreover, the preparation method is simple and convenient, and the application range of the chain extender masterbatch is broad.
Inventors:
CHEN ZHIQIANG (CN)
XIA TIAN (CN)
XIA TIAN (CN)
Application Number:
PCT/CN2020/084812
Publication Date:
October 21, 2021
Filing Date:
April 15, 2020
Export Citation:
Assignee:
USEON NANJING EXTRUSION MACHINERY CO LTD (CN)
International Classes:
C08L67/02; C08J3/22; C08J9/12; C08J9/14; C08K5/1539; C08L23/08; C08L51/06
Foreign References:
| CN1791632A | 2006-06-21 | |||
| US20100292352A1 | 2010-11-18 | |||
| CN1135228A | 1996-11-06 | |||
| CN102056967A | 2011-05-11 | |||
| JPS59210955A | 1984-11-29 |
Other References:
CAO YUFEI: "Preparation and Properties of Poly(Ethylene Terephthalate) / Poly(Butylene Terephthalate) Alloys with High Toughness)", GAOFENZI-CAILIAO-KEXUE-YU-GONGCHENG = POLYMER MATERIALS SCIENCE AND ENGINEERING, CHENGDU KEJI DAXUE GAOFENZI YANJIUSUO, CN, vol. 25, no. 11, 15 November 2009 (2009-11-15), CN , XP055864396, ISSN: 1000-7555
LI CANGHONG, PENGWEI SHI, JUNJIE TANG, YE TIAN: "Influences of POE-g-GMA Graft Ratio on Properties and Morphologies of PBT / POE-g-GMA Blends)", GONGCHENG-SULIAO-YINGYONG = ENGINEERING PLASTICS APPLICATION, ZHONGGUO BINGGONG XUEHUI; FEIJINSHU XUEHUI, CHINA, vol. 44, no. 2, 1 January 2016 (2016-01-01), CHINA , pages 29 - 34, XP055864407, ISSN: 1001-3539, DOI: 10.3969/j.issn.1001-3539.2016.02.006
ZHANG ZHIJUN: "Study on Preparation and Properties of PBT/PET Alloy with High Strength and Anti-friction", CHINA PLASTICS INDUSTRY, vol. 41, no. 7, 20 July 2013 (2013-07-20), XP055864419, ISSN: 1005-5770
L. DI MAIO, I. COCCORULLO, S. MONTESANO, L. INCARNATO: "Chain Extension and Foaming of Recycled PET in Extrusion Equipment", MACROMOLECULAR SYMPOSIA, vol. 228, no. 1, 1 August 2005 (2005-08-01), pages 185 - 200, XP055116885, ISSN: 10221360, DOI: 10.1002/masy.200551017
LI CANGHONG, PENGWEI SHI, JUNJIE TANG, YE TIAN: "Influences of POE-g-GMA Graft Ratio on Properties and Morphologies of PBT / POE-g-GMA Blends)", GONGCHENG-SULIAO-YINGYONG = ENGINEERING PLASTICS APPLICATION, ZHONGGUO BINGGONG XUEHUI; FEIJINSHU XUEHUI, CHINA, vol. 44, no. 2, 1 January 2016 (2016-01-01), CHINA , pages 29 - 34, XP055864407, ISSN: 1001-3539, DOI: 10.3969/j.issn.1001-3539.2016.02.006
ZHANG ZHIJUN: "Study on Preparation and Properties of PBT/PET Alloy with High Strength and Anti-friction", CHINA PLASTICS INDUSTRY, vol. 41, no. 7, 20 July 2013 (2013-07-20), XP055864419, ISSN: 1005-5770
L. DI MAIO, I. COCCORULLO, S. MONTESANO, L. INCARNATO: "Chain Extension and Foaming of Recycled PET in Extrusion Equipment", MACROMOLECULAR SYMPOSIA, vol. 228, no. 1, 1 August 2005 (2005-08-01), pages 185 - 200, XP055116885, ISSN: 10221360, DOI: 10.1002/masy.200551017
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
Download PDF: