Title:
METHOD OF INCREASING CRYSTALLIZATION TEMPERATURES IN POLYPROPYLENE
Document Type and Number:
WIPO Patent Application WO/2016/069280
Kind Code:
A3
Abstract:
Disclosed is a method of increasing the crystallization temperature of polypropylene comprising melt deforming a base polypropylene in the absence of external nucleating agents, the melt deformation, resulting in an deformed polypropylene having a Tc from 4 to 20°C higher than the base polypropylene; wherein the melt deformation is accomplished in one or multiple deformation steps and at a Specific Energy Input of at least 0.05 kW-hr/kg.
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Inventors:
DOUFAS ANTONIOS (US)
DAVIS MARK K (US)
VADLAMUDI MADHAVI (US)
WESTWOOD ALISTAIR D (US)
ALLEN EDWARD F (US)
CHENG CHIA Y (US)
GREEN KEITH (US)
JONES CHARLES B (US)
DAVIS MARK K (US)
VADLAMUDI MADHAVI (US)
WESTWOOD ALISTAIR D (US)
ALLEN EDWARD F (US)
CHENG CHIA Y (US)
GREEN KEITH (US)
JONES CHARLES B (US)
Application Number:
PCT/US2015/055752
Publication Date:
June 30, 2016
Filing Date:
October 15, 2015
Export Citation:
Assignee:
EXXONMOBIL CHEM PATENTS INC (US)
International Classes:
C08F10/06; C08K5/14; C08L23/12
Foreign References:
| US20140155854A1 | 2014-06-05 |
Other References:
NAVARRO?PARDO, FABIOLA ET AL.: "Shear effect in beta?phase induction of polypropylene in a single screw extruder", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 130, no. Iss. 4, 2013, pages 2932 - 2937
KUMARASWAMY, GURUSWAMY: "Crystallization of polymers from stressed melts", JOURNAL OF MACROMOLECULAR SCIENCE , PART C: POLYMER REVIEWS, vol. 45, no. Iss. 4, 2005, pages 375 - 397
NOGALES, A. ET AL.: "Shear-induced crystallization of isotactic polypropylene with different molecular weight distributions: in situ small-and wide-angle X-ray scattering studies", POLYMER, vol. 42, no. Iss. 12, 2001, pages 5247 - 5256
WANG, XIAOCHUAN ET AL.: "Chemical modification of polypropylene with peroxide/pentaerythritol triacrylate by reactive extrusion", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 61, no. Iss. 8, 1996, pages 1395 - 1404
KUMARASWAMY, GURUSWAMY: "Crystallization of polymers from stressed melts", JOURNAL OF MACROMOLECULAR SCIENCE , PART C: POLYMER REVIEWS, vol. 45, no. Iss. 4, 2005, pages 375 - 397
NOGALES, A. ET AL.: "Shear-induced crystallization of isotactic polypropylene with different molecular weight distributions: in situ small-and wide-angle X-ray scattering studies", POLYMER, vol. 42, no. Iss. 12, 2001, pages 5247 - 5256
WANG, XIAOCHUAN ET AL.: "Chemical modification of polypropylene with peroxide/pentaerythritol triacrylate by reactive extrusion", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 61, no. Iss. 8, 1996, pages 1395 - 1404
Attorney, Agent or Firm:
FAULKNER, Kevin, M. et al. (Law DepartmentP.O. Box 214, Baytown TX, US)
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