摘要:
The present invention relates to a method for the production of ergosta-5,7-dienol and/or its biosynthetic intermediates and/or metabolites by culturing genetically modified organisms, and to the genetically modified organisms, in particular yeasts, themselves.
摘要:
Described are microorganism which are able to reduce the generation of feces odor by decreasing the amount of at least one of the compounds methyl mercaptan, a sulphide compound, cadavarine, putrescine, indole or skatole, and wherein said decrease in the amount of said compounds is independent of the growth of the microorganism. Also described are compositions, comprising such microorganisms, e.g. food, feed or pharmaceutical compositions and the use of such microorganisms for suppressing feces odor or the preparation of foodstuff or feedstuff, as well as corresponding methods for the production of food or feed composition and additives for food, feed or drinks.
摘要:
The present invention relates to foam layers based on a biodegradable polyester mixture PM, comprising: i) from 5 to 49% by weight, based on the total weight of components i to ii, of at least one polypropylene carbonate; ii) from 51 to 95% by weight, based on the total weight of components i to ii, of polylactic acid; iii) from 0 to 25% by weight, based on the total weight of components i to v, of a polyester composed of an (x1) aliphatic and/or (x2) aromatic dicarboxylic acid and of an (y) aliphatic diol; iv) from 0 to 5% by weight, based on the total weight of components i to v, of a copolymer which comprises epoxy groups and which is based on styrene, acrylate, and/or methacrylate; and v) from 0 to 15% by weight, based on the total weight of components i to v, of additives.
摘要:
The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process, and also to specific expandable pelletized material which comprises polylactic acid and which has a proportion of from 3 to 7% by weight of an organic blowing agent, preferably n-pentane and particularly preferably isopentane. The invention further relates to a preferred process for producing expandable pelletized material which comprises blowing agent and which comprises polylactic acid, and which has low bulk density.
摘要:
The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of the following components: i) from 50 to 99.9% by weight, based on the total weight of components i to iii), of polylactic acid, ii) from 0 to 49.9% by weight, based on the total weight of components i to iii), of one or more further polymers, iii) from 0.1 to 2% by weight, based on the total weight of components i to iii), of a diepoxide or polyepoxide, and iv) from 0 to 10% by weight of one or more additives, b) incorporation by mixing of v) from 3 to 7% by weight, based on the total weight of components i to iv), of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process, and also to specific expandable pelletized material which comprises polylactic acid and which has a proportion of from 3 to 7% by weight of an organic blowing agent, preferably n-pentane and particularly preferably isopentane. The invention further relates to a preferred process for producing expandable pelletized material which comprises blowing agent and which comprises polylactic acid, and which has low bulk density.
摘要:
The present invention relates to a process for producing shrink films comprising: A) from 20 to 90% by weight of a biodegradable, aliphatic-aromatic polyester and B) from 10 to 80% by weight of one or more polymers selected from the group consisting of: polylactic acid, polypropylene carbonate, polycaprolactone, polyhydroxyalkanoate, chitosan, gluten, and one or more aliphatic/aromatic polyesters, such as polybutylene succinate, polybutylene succinate adipate, or polybutylene succinate sebacate, or polybutylene terephthalate-co-adipate; and C) from 0 to 2% by weight of a compatibilizer, where a blow-up ratio smaller than or equal to 4:1 is selected.
摘要:
The present invention provides an aliphatic aromatic polyester comprising: i) 40 to 60 mol %, based on components i to ii, of one or more dicarboxylic acid derivatives selected from the group consisting of: sebacic acid, azelaic acid and brassylic acid; ii) 60 to 40 mol %, based on components i to ii, of a terephthalic acid derivative; iii) 98 to 102 mol %, based on components i to ii, of 1,3-propanediol or 1,4-butanediol, and iv) 0.01% to 5% by weight, based on the total weight of said components i to iii, of a chain extender and/or crosslinker selected from the group consisting of a polyfunctional isocyanate, isocyanurate, oxazoline, carboxylic anhydride, epoxide and/or an at least trihydric alcohol or an at least tribasic carboxylic acid. The present invention further provides a process for producing the polyesters, polyester blends comprising these polyesters and also for the use of these polyesters and polyester blends.
摘要:
The present invention relates to a process for producing shrink films comprising: A) from 20 to 90% by weight of a biodegradable, aliphatic-aromatic polyester and B) from 10 to 80% by weight of one or more polymers selected from the group consisting of: polylactic acid, polypropylene carbonate, polycaprolactone, polyhydroxyalkanoate, chitosan, gluten, and one or more aliphatic/aromatic polyesters, such as polybutylene succinate, polybutylene succinate adipate, or polybutylene succinate sebacate, or polybutylene terephthalate-co-adipate; and C) from 0 to 2% by weight of a compatibilizer, where a blow-up ratio smaller than or equal to 4:1 is selected.
摘要:
The present invention relates to a process for preparing a compound II or a composition comprising the compound II to a composition comprising succinimide and to a composition prepared by the process according to the invention.