Title:
METHODS AND COMPOSITIONS FOR PRODUCING TOBACCO PRODUCTS CONTAINING HYDROGEL CAPSULES COATED FOR LOW PERMEABILITY AND PHYSICAL INTEGRITY
Document Type and Number:
WIPO Patent Application WO/2011/054516
Kind Code:
A3
Abstract:
Methods and compositions for producing hydrogel capsules enveloped with at least one coating layer is disclosed. The coating formulations deposited on the surface of the capsules can improve the physical integrity and the water-retention properties of the alginate beads. The coating formulations can be sequentially applied in various combinations to obtain desirable properties, such as improved physical integrity, mechanical strength, and low permeability, that can extend the shelf-life of the capsules when incorporated into various consumer products.
Inventors:
KARLES GEORGIOS D (US)
WU DAQING (US)
ZHUANG SHUZHONG (US)
WU DAQING (US)
ZHUANG SHUZHONG (US)
Application Number:
PCT/EP2010/006722
Publication Date:
August 11, 2011
Filing Date:
November 04, 2010
Export Citation:
Assignee:
PHILIP MORRIS PROD (CH)
International Classes:
B01J13/22; A23L27/00; A23P1/04; A61K8/11; A61K9/50; C09B67/00; C11D17/00
Domestic Patent References:
| WO2004041251A1 | 2004-05-21 | |||
| WO2006109194A2 | 2006-10-19 |
Foreign References:
| US20070145618A1 | 2007-06-28 | |||
| US20070145617A1 | 2007-06-28 | |||
| EP1607087A1 | 2005-12-21 |
Other References:
DATABASE WPI Week 200429, Derwent World Patents Index; AN 2004-307566, XP002640816
Attorney, Agent or Firm:
TAYLOR, Gillian Claire (16 Theobalds Road, London WC1X 8PL, GB)
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