摘要:
A biodegradable mixture obtained by melt mixing polyesters comprising (A) an aliphatic polyester obtained from aliphatic diacids selected from the group consisting of azelaic acid, sebacic acid, brassilic acid, mixtures thereof and mixtures of said acids with aliphatic dicarbossilic acids and/or aliphatic hydroxyacids containing more than 50 mole % of azelaic acid, sebacic acid and brassilic acid, and from aliphatic diols; (B) a polymer of lactic acid in which the concentration by weight of A with respect to (A+B) is in the range of 30 to 60% and in which the sum of the fusion entalpy ΔHA and ΔHB of the two polyesters in the mixture is greater than the sum of the fusion entalpies ΔH1 and ΔH2 of the polyesters prior to melt mixing.
摘要:
The invention relates to a mixture of biodegradable polyesters comprising: (A) a polyhydroxy acid of the poly-ε-caprolactone type and its copolymers, (B) aliphatic polyester, and (C) a polymer of polylactic acid, in which the concentration of (A) varies with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of (C) with respects to (A+B+C) lies between 2 and 30%.
摘要翻译:本发明涉及可生物降解的聚酯的混合物,其包含:(A)聚ε-己内酯型的多羟基酸及其共聚物,(B)脂族聚酯和(C)聚乳酸的聚合物,其中 (A)相对于(A + B)在40〜70重量%的范围内变化,(C)相对于(A + B + C)的浓度在2〜30%之间。
摘要:
This invention relates to a biodegradable polyester which is particularly suitable for use for the manufacture of wrapping films for packaging, comprising units deriving from at least one diacid and at least one diol, characterized by a high static friction coefficient in comparison with conventional biodegradable polyesters. A further object of this invention is a wrapping film comprising the said biodegradable polyester.
摘要:
The invention relates to a mixture of biodegradable polyesters comprising: (A) a polyhydroxy acid of the poly-ε-caprolactone type and its copolymers, (B) aliphatic polyester, and (C) a polymer of polylactic acid, in which the concentration of (A) varies with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of (C) with respects to (A+B+C) lies between 2 and 30%.
摘要翻译:本发明涉及可生物降解聚酯的混合物,其包含:(A)聚己内酯型聚多羟酸及其共聚物,(B)脂族聚酯和(C)聚乳酸聚合物,其中浓度 的(A)相对于(A + B)在40〜70重量%的范围内变化,(C)相对于(A + B + C)的浓度在2〜30%之间。
摘要:
Bag made of a breathable biodegradable uniform film having thickness from 10 to 40 μm and with permeability to water greater than 950 g 30 μm/m2 24 h in which the biodegradable film comprises starch and possibly a thermoplastic polymer insoluble in water with melting temperature between 60° C. and 150° C.
摘要:
The invention relates to a mixture of biodegradable polyesters which includes an aromatic-aliphatic polyester (A), an aliphatic polyester (B) and a polylactic acid polymer (C) in which the concentration of A varies, with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of C with respect of (A+B+C) is of between 6 and 30% by weight.
摘要翻译:本发明涉及一种生物可降解聚酯的混合物,其包含芳族 - 脂族聚酯(A),脂族聚酯(B)和聚合乳酸聚合物(C),其中A的浓度变化,相对于(A + B) 在40至70重量%的范围内,并且相对于(A + B + C)的C的浓度为6至30重量%。
摘要:
The invention relates to a mixture of biodegradable polyesters comprising: (A) a polyhydroxy acid of the poly-ε-caprolactone type and its copolymers, (B) aliphatic polyester, and (C) a polymer of polylactic acid, in which the concentration of (A) varies with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of (C) with respects to (A+B+C) lies between 2 and 30%.
摘要翻译:本发明涉及可生物降解的聚酯的混合物,其包含:(A)聚ε-己内酯型的多羟基酸及其共聚物,(B)脂族聚酯和(C)聚乳酸的聚合物,其中 (A)相对于(A + B)在40〜70重量%的范围内变化,(C)相对于(A + B + C)的浓度在2〜30%之间。
摘要:
The invention relates to a mixture of biodegradable polyesters which includes an aromatic-aliphatic polyester (A), an aliphatic polyester (B) and a polyactic acid polymer (C) in which the concentration of A varies, with respect to (A+B) in the range between 40 and 70% by weight, and the concentration of C with respect to (A+B+C) is of between 6 and 30% by weight.
摘要翻译:本发明涉及一种生物可降解聚酯的混合物,其包含芳族 - 脂族聚酯(A),脂族聚酯(B)和聚合酸(A)的浓度相对于(A + B)变化的聚乳酸聚合物(C) 在40〜70重量%的范围内,C相对于(A + B + C)的浓度为6〜30重量%。
摘要:
Biodegradable foamed plastic material having a bulk density comprised within the range of from 5 to 13 kg/m.sup.3, comprising: 30-99.5 by weight of polisaccharide containing more than 50% of thermoplastic starch or starch complexed by polimeric structures, having an intrinsic viscosity (in DMSO) lower than 1.3 dl/g and less than 20% by weight of soluble fraction in ethanol; 0.5-70% by weight of a thermoplastic polymer which is soluble in starch, or is capable of complexing it; 0-20% by weight of water. The material can be used as a loose filler or for other foamed articles.
摘要翻译:堆积密度在5至13kg / m 3范围内的可生物降解的泡沫塑料材料包括:30-99.5重量%的含有超过50%热塑性淀粉或通过聚合物结构复合的淀粉的聚糖,其特性粘度( 在DMSO中)低于1.3dl / g且小于20wt%的可溶成分在乙醇中; 0.5-70重量%的可溶于淀粉的热塑性聚合物,或能够络合它; 0-20重量%的水。 该材料可用作松散填料或其它发泡制品。
摘要:
The biodegradable polymeric compositions comprise a starch based component and a polymeric component comprising polymers of hydroxyacids or mixtures thereof with polymers deriving from ethylenically unsaturated monomers, particularly polymers of ethylene-vinylalcohol or polyvinylalcohol.