Title:
LAYERED TUBE
Document Type and Number:
WIPO Patent Application WO/2019/065231
Kind Code:
A1
Abstract:
Provided is a layered tube comprising a layer containing a specific aliphatic polyamide composition and a layer containing an ethylene/vinyl acetate copolymer saponified substance, said layers being disposed adjacent to each other, wherein: the absolute difference in the solubility parameter/SP value, between an aliphatic polyamide having a melting point no more than a specific value and having a ratio of the number of methylene groups to the number of amide groups that is at least a specific value and another polyamide in the aliphatic polyamide composition falls within a specific range; and the aliphatic polyamide composition includes an aliphatic polyamide and an elastomer polymer containing a constituent unit derived from an unsaturated compound having a carboxyl group and/or an acid anhydride group.
Inventors:
TSUBOI KAZUTOSHI (JP)
NAKAMURA KOJI (JP)
SASAKI RYOUSUKE (JP)
MORIYAMA TOSHIO (JP)
NAKAMURA KOJI (JP)
SASAKI RYOUSUKE (JP)
MORIYAMA TOSHIO (JP)
Application Number:
PCT/JP2018/033771
Publication Date:
April 04, 2019
Filing Date:
September 12, 2018
Export Citation:
Assignee:
UBE INDUSTRIES (JP)
International Classes:
B32B1/08; F02M37/00; F16L11/04
Domestic Patent References:
| WO2015033982A1 | 2015-03-12 | |||
| WO2017170985A1 | 2017-10-05 |
Foreign References:
| JP2009234259A | 2009-10-15 | |||
| JP2009235394A | 2009-10-15 | |||
| JP2003535717A | 2003-12-02 | |||
| JP2014240147A | 2014-12-25 | |||
| US20150353792A1 | 2015-12-10 | |||
| US5554425A | 1996-09-10 | |||
| JPH03177683A | 1991-08-01 | |||
| JP2003535717A | 2003-12-02 | |||
| JP2003021276A | 2003-01-24 | |||
| JP2002210904A | 2002-07-31 | |||
| JP2004262244A | 2004-09-24 | |||
| JP2008030483A | 2008-02-14 | |||
| JP2013514212A | 2013-04-25 | |||
| JP2016172447A | 2016-09-29 | |||
| JPH0718035A | 1995-01-20 | |||
| JPH0725952A | 1995-01-27 | |||
| JPH0725954A | 1995-01-27 | |||
| JPH07173230A | 1995-07-11 | |||
| JPH07173446A | 1995-07-11 | |||
| JPH07173447A | 1995-07-11 | |||
| JPH10503236A | 1998-03-24 |
Other References:
POLYMER ENGINEERING AND SCIENCE, vol. 14, no. 2, 1974, pages 147 - 154
See also references of EP 3689590A4
See also references of EP 3689590A4
Attorney, Agent or Firm:
TSUKUNI & ASSOCIATES et al. (JP)
Download PDF: