Title:
FOAM FOR WASHING CONCRETE PUMP
Document Type and Number:
WIPO Patent Application WO/2016/010247
Kind Code:
A1
Abstract:
Provided is a method for manufacturing a foam for washing a concrete pump, the method comprising the steps of: providing a mixture of: a polymer containing an olefin block copolymer (OBC) having a DSC melting point of 100°C or higher and a natural or synthetic rubber; a liquid softening agent; and a cross-linking agent, a foaming agent, and at least one other additive selected from the group consisting of a metal oxide, stearic acid, an antioxidant, zinc stearate, titanium dioxide, a cross-linking aid, and a pigment; putting the mixture into a mold and pressurizing and foaming the mixture in the temperature rising condition, thereby forming a polymer foam; and, after the foaming, polishing a surface of the polymer foam to expose independent bubbles to the surface.
Inventors:
LEE SUNG YULL (KR)
Application Number:
PCT/KR2015/004995
Publication Date:
January 21, 2016
Filing Date:
May 19, 2015
Export Citation:
Assignee:
FINE CHEMICAL CO LTD (KR)
International Classes:
C08L23/00; C08J9/04; C08L7/00; C08L21/00
Foreign References:
| JP2009161740A | 2009-07-23 | |||
| KR20010033980A | 2001-04-25 | |||
| JP2014064974A | 2014-04-17 | |||
| JP2002192096A | 2002-07-10 | |||
| JP2008156442A | 2008-07-10 |
Other References:
See also references of EP 3162848A4
Attorney, Agent or Firm:
KWAK, HYUN KYU (KR)
곽현규 (KR)
곽현규 (KR)
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