Title:
RIGID ARTICLES HAVING A WELL-DEFINED CORNER
Document Type and Number:
WIPO Patent Application WO/2019/041205
Kind Code:
A1
Abstract:
A rigid blow molded article comprising: (a) sides of the article forming at least one corner wherein the corner is characterized by a mathematically fitting a sphere of best fit into the corner so there is at a circular arc section in the at least one corner, wherein radius of curvature of the sphere of best fit is less than 5.7 mm; (b) the corner having an average thickness from 0.1 mm to 1 mm; and (c) the sides forming the corner comprise at least an outer layer of an outer layer material having an elastic modulus (E') less than 370 MPa measured by dynamical mechanical analysis ("DMA") per ASTM D4065, with a frequency sweep conducted at the fixed temperature of the cold-crystallization peak temperature("T cc") of the PET copolymer resin minus 15 degree Centigrade (T cc-15degree Centigrade temperature) at 1 Hz, wherein the T cc is measured by way of differential scanning calorimetry ("DSC") at a temperature ramp rate of 10 degree Centigrade per minute.
Inventors:
YANG LIANG (CN)
HUANG XU (CN)
WANG PING (CN)
GUAN ZHE (CN)
SONG SHUO (CN)
SHI FUKUAN (CN)
HUANG XU (CN)
WANG PING (CN)
GUAN ZHE (CN)
SONG SHUO (CN)
SHI FUKUAN (CN)
Application Number:
PCT/CN2017/099797
Publication Date:
March 07, 2019
Filing Date:
August 31, 2017
Export Citation:
Assignee:
PROCTER & GAMBLE (US)
YANG LIANG (CN)
HUANG XU (CN)
WANG PING (CN)
GUAN ZHE (CN)
SONG SHUO (CN)
SHI FUKUAN (CN)
YANG LIANG (CN)
HUANG XU (CN)
WANG PING (CN)
GUAN ZHE (CN)
SONG SHUO (CN)
SHI FUKUAN (CN)
International Classes:
B65D1/02; B29C49/06
Domestic Patent References:
| WO2012062569A1 | 2012-05-18 | |||
| WO2013040096A1 | 2013-03-21 |
Foreign References:
| US5906286A | 1999-05-25 | |||
| US6299007B1 | 2001-10-09 | |||
| US4318489A | 1982-03-09 | |||
| US3722726A | 1973-03-27 | |||
| US20050260371A1 | 2005-11-24 | |||
| US5906286A | 1999-05-25 | |||
| US20080254245A1 | 2008-10-16 | |||
| US5906286A | 1999-05-25 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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