EP 0861036 B1 20000112 - METHOD FOR THE MANUFACTURE OF BIODEGRADABLE FILTER MATERIAL
Title (en)
METHOD FOR THE MANUFACTURE OF BIODEGRADABLE FILTER MATERIAL
Title (de)
VERFAHREN ZUR HERSTELLUNG VON BIOLOGISCH ABBAUBAREM FILTERMATERIAL
Title (fr)
PROCEDE DE FABRICATION DE MATERIAU DE FILTRE BIODEGRADABLE
Publication
Application
Priority
- DE 19536505 A 19950929
- EP 9604234 W 19960927
Abstract (en)
[origin: US6062228A] PCT No. PCT/EP96/04234 Sec. 371 Date Mar. 30, 1998 Sec. 102(e) Date Mar. 30, 1998 PCT Filed Sep. 27, 1996 PCT Pub. No. WO97/12528 PCT Pub. Date Apr. 10, 1997There is provided a biodegradable filter tow or filter material from renewable raw materials for the use as a tobacco smoke filter element of cigarettes, cigars or pipes as well as a method for preparing it, wherein fibers, films or foams prepared in an extrusion method from biopolymers based on thermoplastic starch or its polymer compositions are processed to the filter tow or filter material according to the present invention. The advantages of this invention reside in the use of mainly renewable raw materials, a fast and complete biodegradability of the natural biopolymer filter material, a pollutant-reducing flavor-increasing filtering effect and an economically favorable preparation method.
IPC 1-7
IPC 8 full level
A24D 3/02 (2006.01); A24D 3/08 (2006.01); B29C 47/00 (2006.01); B29C 48/345 (2019.01); B29C 55/28 (2006.01); B29C 67/24 (2006.01); C08J 9/00 (2006.01); C08L 101/16 (2006.01); B29K 96/00 (2006.01); B29L 31/14 (2006.01)
CPC (source: EP KR US)
A24D 3/068 (2013.01 - EP US); A24D 3/08 (2013.01 - EP KR US); Y10S 264/48 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6062228 A 20000516; AR 003751 A1 19980909; AT E188599 T1 20000115; AU 696205 B2 19980903; AU 7215996 A 19970428; BR 9611208 A 19990406; CA 2233368 A1 19970410; CA 2233368 C 20001205; CN 1113618 C 20030709; CN 1198080 A 19981104; CO 4750781 A1 19990331; DE 19536505 A1 19970410; DE 59604195 D1 20000217; EP 0861036 A1 19980902; EP 0861036 B1 20000112; ES 2141539 T3 20000316; GR 3032900 T3 20000731; ID 18221 A 19980319; JP 3266272 B2 20020318; JP H11500629 A 19990119; KR 100261855 B1 20000801; KR 19990044684 A 19990625; PL 180599 B1 20010330; PL 325968 A1 19980817; PT 861036 E 20000630; RU 2153828 C2 20000810; TR 199800561 T1 19980622; TW 546125 B 20030811; WO 9712528 A1 19970410; ZA 968199 B 19970502
DOCDB simple family (application)
US 4399398 A 19980330; AR P960104550 A 19960930; AT 96933415 T 19960927; AU 7215996 A 19960927; BR 9611208 A 19960927; CA 2233368 A 19960927; CN 96197294 A 19960927; CO 96051582 A 19960927; DE 19536505 A 19950929; DE 59604195 T 19960927; EP 9604234 W 19960927; EP 96933415 A 19960927; ES 96933415 T 19960927; GR 20000400595 T 20000308; ID 962789 A 19960930; JP 51395697 A 19960927; KR 19980701939 A 19980316; PL 32596896 A 19960927; PT 96933415 T 19960927; RU 98107642 A 19960927; TR 9800561 T 19960927; TW 86103622 A 19970321; ZA 968199 A 19960903