EP 1000119 A1 20000517 - THERMOPLASTIC MIXTURE WITH A STARCH BASE, FOR PRODUCING BIODEGRADABLE MOULDED BODIES
Title (en)
THERMOPLASTIC MIXTURE WITH A STARCH BASE, FOR PRODUCING BIODEGRADABLE MOULDED BODIES
Title (de)
THERMOPLASTISCHE MISCHUNG AUF STÄRKEBASIS ZUR HERSTELLUNG VON BIOLOGISCH ABBAUBAREN FORMKÖRPERN
Title (fr)
MELANGES THERMOPLASTIQUES A BASE D'AMIDON SERVANT A PRODUIRE DES CORPS MOULES BIODEGRADABLES
Publication
Application
Priority
- DE 19729272 A 19970709
- EP 9803920 W 19980626
Abstract (en)
[origin: DE19729272A1] The invention relates to a thermoplastic mixture with a starch base, for producing biodegradable moulded bodies with improved properties, preferably improved mechanical properties. The inventive thermoplastic mixture can be obtained by providing and mixing; A) 100 weight parts of any native, chemically modified, fermentative starch which is recombinant and/or produced by biotransformation and corrected to a water content of zero per cent by calculation, and/or derivatives of said starches, B) optionally up to 100 weight parts of a physiologically harmless, biodegradable, thermoplastically processable polymeric material which is different from A), C) 1 to 100 weight parts of water, D) at least one plasticiser in a quantity of between 10 weight parts to half of the sum of the weight parts of A) and B), E) at least one phosphate, preferably a phosphoric acid salt, in a quantity of between 0.01 weight parts and (A)+B))/10 weight parts, and F) optionally, up to (A)+B)) weight parts of other usual additives. At least the mixing of constituents A and A) is carried out with the introduction of heat and mechanical energy, preferably at a high temperature with shearing forces being applied to the thermoplastic mixture simultaneously.
IPC 1-7
IPC 8 full level
A22C 13/00 (2006.01); C08B 31/06 (2006.01); C08J 5/18 (2006.01); C08K 3/32 (2006.01); C08K 5/053 (2006.01); B65D 65/46 (2006.01); C08L 3/00 (2006.01); C08L 5/00 (2006.01); C08L 5/14 (2006.01); C08L 89/00 (2006.01)
CPC (source: EP)
C08J 5/18 (2013.01); C08K 5/053 (2013.01); C08L 3/00 (2013.01); C08J 2303/00 (2013.01); C08L 5/00 (2013.01); C08L 5/14 (2013.01); C08L 89/00 (2013.01); C08L 89/005 (2013.01); C08L 2201/06 (2013.01)
C-Set (source: EP)
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9902595 A1 19990121; CA 2295637 A1 19990121; DE 19729272 A1 19990114; DE 19729272 C2 20020110; EP 1000119 A1 20000517; HU P0003025 A2 20001228; JP 2001509525 A 20010724; PL 338049 A1 20000925
DOCDB simple family (application)
EP 9803920 W 19980626; CA 2295637 A 19980626; DE 19729272 A 19970709; EP 98939538 A 19980626; HU P0003025 A 19980626; JP 2000502105 A 19980626; PL 33804998 A 19980626