摘要:
The invention is directed to a silane crosslinkable polymer composition which comprises a polyolefin (a) bearing hydrolysable silane group(s) containing units. The polymer composition is suitable for producing crosslinkable articles, preferably one or more layers of a cable. The formed article, preferably a cable, is preferably crosslinked before the enduse thereof.
摘要:
The present invention relates to a pipe comprising a polyolefin composition with low migration of the used additives and its decomposition products, especially phenolics, out of the composition, at the same time showing good pressure testing performance.
摘要:
The present invention relates to the use of compound (A) and compound (B) in a polyolefin composition for increasing the lifetime of a pipe made of said polyolefin composition which pipe is in permanent contact with chlorinated water, wherein compound (A) has the following formula (I): wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups, —X1, X2, and X3 independently are H or OH, with the proviso that at least one of X X1, X2, and X3 is OH, and—the entire molecule does not comprise an ester group, wherein compound (B) has the following formula (II): wherein R and R′ each is the same or different residue and comprising at least 6 carbon atoms.
摘要:
The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is greater than 15, a storage modulus G′ (5 kPa) which is above 3000 and a vinylidene content which is at least 15/100k C, compositions, a process for production of the low density polyethylene, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process, an article, e.g. an extrusion article, and use in extrusion coating.
摘要:
The present invention deals with the use of pipes made of cross-linked polyethylene for transporting water containing chlorine dioxide. Cross-linked polyethylene has a resistance of more than 3500 hours against water treated with chlorine dioxide when tested according to a modified method of ASTM F2263-03. Especially, the pipes made of cross-linked polyethylene can be used for transporting drinking water which had been disinfected by using chlorine dioxide.
摘要:
The present invention relates to a polyolefin composition comprising (a) a polyolefin (A), (b) a vitamin E-type stabilizer (B) according to formula (I), wherein R1, R2, R3, R4 and R5 independently are H, or non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise heteroatoms, and (c) a phenolic stabilizer (C) according to formula (II), wherein R6, R7 and R8 independently are non-substituted or substituted aliphatic or aromatic hydrocarbyl radicals which may comprise OH-groups; and X1, X2, and X3 independently are H or OH, with the provisio that at least one of X1, X2 and X3 is OH, and (d) optionally, an UV stabilizer, to an article comprising such a polyolefin composition and to the use of such a composition for the production of an article.
摘要:
The present invention relates to a polyolefin composition with good resistance to degradation caused by chlorine dioxide-containing water and at the same time showing low migration of the used additives and its decomposition products, especially phenols, out of the composition. The present invention is also directed to a pipe made of such a polyolefin composition. The present invention further relates to the use of the polyolefin composition for the production of a pipe and to the use of a combination of particular types of antioxidants for increasing the resistance of a polyolefin composition against degradation caused by contact with chlorine dioxide-containing water and for maintaining at the same time a low migration of the used additives and its decomposition products, especially phenols, out of the polyolefin composition.
摘要:
The present invention relates to a composition comprising: a) a polyolefin (A); b) a compound (B) according to formula (I), wherein R and R′ each is the same or different residue and comprising at least 6 C-atoms; c) a phenolic compound (C), having the formula (II) wherein R is an non-substituted or substituted aliphatic or aromatic hydrocarbyl radical which may comprise heteroatoms, or R is an heteroatom; X is H, OH, and/or R′; whereby R′ is a hydrocarbyl radical or hydrogen, and n is 1 to 4; and d) optionally, an UV-light stabilizer (D), wherein for the composition the total amount of migrated compounds (B), (C) and, if present, (D), as well as their decomposition products is equal to or less than 1.8 microgram per liter with a ratio S/V dm−1 of 11.70 to 12.30, to the use of said composition for the production of a pipe and to a pipe comprising said composition.
摘要翻译:本发明涉及一种组合物,其包含:a)聚烯烃(A); b)根据式(I)的化合物(B),其中R和R'各自为相同或不同的残基且包含至少6个C原子; c)具有式(II)的酚类化合物(C),其中R是可以包含杂原子的非取代或取代的脂族或芳族烃基,或R是杂原子; X是H,OH和/或R'; 其中R'为烃基或氢,n为1至4; 和(d)任选的UV光稳定剂(D),其中对于组合物,迁移的化合物(B),(C)和(如果存在)(D)的总量以及它们的分解产物等于或 小于1.8微克/升,比率S / V dm-1为11.70至12.30,用于生产管道的所述组合物和包含所述组合物的管道。
摘要:
The present invention relates to a pipe comprising a polyolefin composition with low migration of the used additives and its decomposition products, especially phenolics, out of the composition, at the same time showing good pressure testing performance.
摘要:
The present invention relates to a composition comprising: a) a polyolefin (A); b) a compound (B) according to formula (I), wherein R and R′ each is the same or different residue and comprising at least 6 C-atoms; c) a phenolic compound (C), having the formula (II) wherein R is an non-substituted or substituted aliphatic or aromatic hydrocarbyl radical which may comprise heteroatoms, or R is an heteroatom; X is H, OH, and/or R′; whereby R′ is a hydrocarbyl radical or hydrogen, and n is 1 to 4; and d) optionally, an UV-light stabilizer (D), wherein for the composition the total amount of migrated compounds (B), (C) and, if present, (D), as well as their decomposition products is equal to or less than 1.8 microgram per liter with a ratio S/V dm−1 of 11.70 to 12.30, to the use of said composition for the production of a pipe and to a pipe comprising said composition.
摘要翻译:本发明涉及一种组合物,其包含:a)聚烯烃(A); b)根据式(I)的化合物(B),其中R和R'各自为相同或不同的残基且包含至少6个C原子; c)具有式(II)的酚类化合物(C),其中R是可以包含杂原子的非取代或取代的脂族或芳族烃基,或R是杂原子; X是H,OH和/或R'; 其中R'为烃基或氢,n为1至4; 和(d)任选的UV光稳定剂(D),其中对于组合物,迁移的化合物(B),(C)和(如果存在)(D)的总量以及它们的分解产物等于或 小于1.8微克/升,比率S / V dm-1为11.70至12.30,用于生产管道的所述组合物和包含所述组合物的管道。