EP 2811852 A4 20151223 - SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF
Title (en)
SUBSTITUTED CELLULOSE ACETATES AND USES THEREOF
Title (de)
SUBSTITUIERTE CELLULOSEACETATE UND VERWENDUNGEN DAVON
Title (fr)
ACÉTATES DE CELLULOSE SUBSTITUÉS ET LEURS UTILISATIONS
Publication
Application
Priority
- US 201213359603 A 20120127
- US 2013022625 W 20130123
Abstract (en)
[origin: US2013192613A1] The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a cigarette filter material having a filter having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; wherein the nonmetal is present in at least 0.01% by weight of the substituted cellulose acetate.
IPC 8 full level
A24D 3/06 (2006.01); A24D 1/00 (2006.01); A24D 3/10 (2006.01); A24D 3/14 (2006.01)
CPC (source: EP KR US)
A24D 3/068 (2013.01 - EP KR US); A24D 3/10 (2013.01 - EP KR US); C09K 8/035 (2013.01 - KR); D04H 1/4258 (2013.01 - EP KR US); D04H 3/013 (2013.01 - EP KR US); D04H 3/077 (2013.01 - EP KR US); C09K 8/035 (2013.01 - EP US)
Citation (search report)
- [X] DE 2607208 A1 19770825 - HOECHST AG
- [A] EP 0716117 A1 19960612 - DAICEL CHEM [JP], et al
- [A] JP H06199901 A 19940719 - TEIJIN LTD
- [A] DE 9309937 U1 19930826 - HOECHST AG [DE]
- [A] EP 0706766 A2 19960417 - DAICEL CHEM [JP]
- [A] EP 0987276 A1 20000322 - JAPAN TOBACCO INC [JP]
- [A] US 3897782 A 19750805 - TUNC DEGER C
- [A] D. D. GRINSHPAN ET AL: "Cellulose Acetate Sulfate as a Lyotropic Liquid Crystalline Polyelectrolyte: Synthesis, Properties, and Application", INTERNATIONAL JOURNAL OF POLYMER SCIENCE, vol. 29, no. 3, 1 January 2010 (2010-01-01), pages 490 - 17, XP055160620, ISSN: 1687-9422, DOI: 10.1016/S0008-6215(03)00010-7
- See references of WO 2013112502A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2013192613 A1 20130801; BR 112014018021 A2 20170620; BR 112014018021 A8 20170711; CA 2861037 A1 20130801; CN 104105416 A 20141015; EP 2811852 A1 20141217; EP 2811852 A4 20151223; JP 2015510395 A 20150409; KR 20140116537 A 20141002; MX 2014009100 A 20141110; WO 2013112502 A1 20130801
DOCDB simple family (application)
US 201213359603 A 20120127; BR 112014018021 A 20130123; CA 2861037 A 20130123; CN 201380006636 A 20130123; EP 13741010 A 20130123; JP 2014554785 A 20130123; KR 20147023496 A 20130123; MX 2014009100 A 20130123; US 2013022625 W 20130123