Title:
POLYPROPYLENE-SPECIFIC EFFICIENT HALOGEN-FREE FLAME RETARDANT MASTERBATCH, PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/075855
Kind Code:
A1
Abstract:
The present invention provides a polypropylene-specific efficient halogen-free flame retardant masterbatch, consisting of the following raw materials in percentages by weight: 30-40% of ammonium polyphosphate; 10-20％ of pentaerythritol octahydrogen tetraphosphate; 15-25％ of melamine; 5-15％ of Bisphenol-A bis(diphenyl phosphate); 10-30％ of microcellular polypropylene; 0.1-1％ of pentaerythrityl tetrastearate; 0.1-0.5％ of antioxidant 1010; and 0.1-0.5％ of antioxidant 168. The microcellular polypropylene are particles having a size of 3-5 mm, wherein the foam cell size on the surfaces of the particles is 10-100 µm and the density of foam cells is greater than 105 cells/cm3. In the present invention, the prepared polypropylene-specific efficient halogen-free flame retardant masterbatch is easily dispersible and processable and has high flame retardant efficiency and low production costs, and therefore is widely used in production of flame-retardant polypropylene materials for extrusion, injection moulding, and film blowing.
Inventors:
YUAN HAIBING (CN)
HAO JIANXIN (CN)
HUANG ZEBIN (CN)
WU LEI (CN)
DENG JUE'AN (CN)
HOU ZHIMOU (CN)
FAN MULIANG (CN)
HAO YUANZENG (CN)
REN PING (CN)
HAO JIANXIN (CN)
HUANG ZEBIN (CN)
WU LEI (CN)
DENG JUE'AN (CN)
HOU ZHIMOU (CN)
FAN MULIANG (CN)
HAO YUANZENG (CN)
REN PING (CN)
Application Number:
PCT/CN2015/095879
Publication Date:
May 11, 2017
Filing Date:
November 28, 2015
Export Citation:
Assignee:
GUANGZHOU SUPER-DRAGON ENG PLASTICS CO LTD (CN)
International Classes:
B29C48/92; C08L23/12; C08J3/22; C08K3/32; C08K5/3492; C08K5/521; C08K5/523; C08K13/02
Domestic Patent References:
| WO2002000412A2 | 2002-01-03 |
Foreign References:
| CN102675737A | 2012-09-19 | |||
| CN102219957A | 2011-10-19 | |||
| CA2498975A1 | 2004-04-15 | |||
| US3936416A | 1976-02-03 |
Attorney, Agent or Firm:
YOGO PATENT & TRADE MARK AGENCY LIMITED COMPANY (CN)
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