Global Patent Index - EP 0861036 B1

EP 0861036 B1 2000-01-12 - 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

EP 0861036 B1 (DE)

Application

EP 96933415 A

Priority

  • DE 19536505 A
  • EP 9604234 W

Abstract (en)

[origin: DE19536505A1] The invention concerns a biodegradable filter tow or filter material (1) of renewable raw materials for use as tobacco filter elements for cigarettes, cigars or pipes, as well as a process for its manufacture. Fibres, foils or foams produced in an extrusion process and consisting of biopolymers based on thermoplastic starch and their polymer mixture are processed to form the filter tow or filter material according to the invention. The advantages of the invention reside in the use of biodegradability of the natural biopolymer filter material, a pollutant-reducing aroma-enhancing filter effect and an economical manufacturing method.

IPC 1-7

A24D 3/08

IPC 8 full level

A24D 3/02 (2006.01); A24D 3/08 (2006.01); B29C 47/00 (2006.01); B29C 47/30 (2006.01); 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

A24D 3/068 (2013.01); A24D 3/08 (2013.01); Y10S 264/48 (2013.01)

DCS

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family

DE 19536505 A1 19970410; AR 003751 A1 19980909; AT 188599 T 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; 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; US 6062228 A 20000516; WO 9712528 A1 19970410; ZA 9608199 B 19970502