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Title:
RUBBER COMPOSITE, APPLICATIONS IN FOAMED PRODUCT, AND MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2018/130196
Kind Code:
A1
Abstract:
Disclosed are a rubber composite, a processing method therefor, applications and a method for utilizing the composite in manufacturing a foamed material. The rubber composite comprises: a rubber substrate and essential components. The rubber substrate comprises: branched polyethylene, the content thereof being a: 0 < a ≤ 100 parts; ethylene propylene monomer rubber and ethylene propylene diene monomer rubber, the content thereof being b: 0 ≤ b < 100 parts. The essential components comprise: a crosslinking agent 0.5-10 parts and a foaming agent 1.5-25 parts. The applications are a processed sponge sealing strip, a high foaming ratio foaming material, a shock-absorbing foam rubber plate material, a light-colored high-strength foamed plate material, a foamed solid composite sealing strip, and a solid tire filled with a foamed elastomer. The beneficial effects are such that, in addition to short branch chains such as methyl, ethyl, propyl, butyl, and pentyl, the branched polyethylene is also provided with long branch chains of 6 carbons or more, by using the branched polyethylene to replace partially or entirely ethylene propylene rubber in a foamed rubber composite, the melt strength of the rubber composite is increased, the foamability of the composite, particularly pre-foaming, and rubber products so manufactured have reduced permanent deformation under compression.

Inventors:
XU TAO (CN)
FU ZHI SHENG (CN)
WU AN YANG (CN)
Application Number:
PCT/CN2018/072368
Publication Date:
July 19, 2018
Filing Date:
January 12, 2018
Export Citation:
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Assignee:
HANGZHOU XINGLU TECH CO LTD (CN)
International Classes:
C08L23/16; C08L23/06
Domestic Patent References:
WO2009035885A12009-03-19
Foreign References:
CN102892827A2013-01-23
CN102245699A2011-11-16
Attorney, Agent or Firm:
SHANGHAI ZHI LI PATENT & TRADEMARK AGENCY (GENERAL PARTNERSHIP) (CN)
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