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公开(公告)号:AU2023355799A1
公开(公告)日:2025-04-17
申请号:AU2023355799
申请日:2023-10-04
Applicant: BASF SE
Inventor: SIEGENTHALER KAI OLIVER , LOHMANN JEROME , SCHICK MICHAEL BERNHARD , WITT TIMO BENJAMIN , BLOSS FRANK , LUDWIG ANDREAS
IPC: C08G63/08 , B32B27/36 , C08L67/02 , C08L67/04 , C09D167/00 , C09D167/04
Abstract: The present invention relates to a biodegradable polymer blend based on a biodegradable aliphatic aromatic polyester and/or aliphatic polyester comprising: The blend comprises - 10 to 80% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one biodegradable polyester a) selected from the group consisting of aliphatic-aromatic polyesters, aliphatic polyesters, which are different from polymers b) and c), and mixtures thereof; - 18 to 88% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one polymer b), selected from the group consisting of polyhydroxyalkanoates, polylactides, polyglycolic acid and mixtures thereof; - 2 to 72% by weight, based on the total weight of polyester a), polymer b) and polycaprolactone c), of at least one polycaprolactone c) having a viscosity number of at least 110 ml/g, in particular at least 150 ml/g, preferably at least 200 ml/g, especially at least 250 ml/g, as determined according to DIN 53728- 3:1985-1; wherein the total weight of polyester a), polymer b) and polycaprolactone c) is at least 50% by weight, based on the total weight of the blend. The present invention relates to the use of the blend for coating substrates or for producing a rigid packaging article, to a mono-layered or multi-layered film comprising at least one layer comprising a biodegradable polymer blend, as defined hereinafter and to a process for coating a substrate layer. The present invention also relates to a laminate comprising at least one mono-layered or multi-layered film comprising at least one layer comprising a biodegradable polymer blend, as defined hereinafter, and to packaging materials.
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公开(公告)号:ES2898962T3
公开(公告)日:2022-03-09
申请号:ES19157459
申请日:2019-02-15
Applicant: BASF SE
Inventor: KOHL JOERG , SCHICK MICHAEL BERNHARD , LOHMANN JEROME , BUSSMANN MARTIN , WITT TIMO BENJAMIN
IPC: C08L67/02
Abstract: Artículo moldeado por inyección con una temperatura HDT-B según DIN EN ISO 75-2:2004-09 de 79 a 105 °C que contiene: i) 55 a 65 % en peso, referido al peso total de los componentes i a v, de un poliéster biodegradable que contiene: i-a) 80 a 100 % molar, referido a los componentes i-a a i-b, de ácido succínico; i-b) 0 a 20 % molar, referido a los componentes i-a a i-b, de uno o más ácidos dicarboxílicos de C6-C20; i-c) 99 a 102 % molar, referido a los componentes i-a a i-b, de 1,3-propanodiol o 1,4-butanodiol; i-d) 0 a 1 % en peso, referido a los componentes i-a a i-c de un extensor de cadena o agente de ramificación; ii) 3 a 10 % en peso, referido al peso total de los componentes i a v, de un poliéster alifático-aromático que contiene: ii-a) 30 a 70 % molar, referido a los componentes ii-a a ii-b, de un ácido dicarboxílico de C6-C18; ii-b) 30 a 70 % molar, referido a los componentes ii-a a ii-b, de ácido tereftálico; ii-c) 98 a 100 % molar, referido a los componentes ii-a a ii-b, de 1,3 propanodiol o 1,4-butanodiol; ii-d) 0 a 1 % en peso, referido a los componentes ii-a a ii-c de un extensor de cadena o agente de ramificación; iii) 16,2 a 30,65 % en peso, referido al peso total de los componentes i a v, de poliácido láctico; iv) 4 a 15 % en peso, referido al peso total de los componentes i a v, de al menos un material de carga mineral; v) 0,35 a 0,8 % en peso, referido al peso total de los componentes i a v, de al menos un auxiliar de desmoldeo; donde para el material composite de los componentes i a v se considera que la relación entre el componente i y el componente iii en el material composite es de 2,0 a 3,2 y la MVR según DIN EN 1133-1 de 01.03.2012 (190°C, 2,16 kg) del material composite es de 8 a 50 cm3/10 min.
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