摘要:
New derivatives of N,N'-4-piperidyl-tetralkyl-substituted alkylene diamines are disclosed. These new compounds are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation. A process for producing the new compounds is also disclosed, as well as the use thereof as stabilizers of polymers and polymeric compositions.
摘要:
New derivatives of N,N'-4-piperidyl-tetraalkyl-substituted alkylene diamines are disclosed. These new compounds are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation. A process for producing the new compounds is also disclosed, as well as the use thereof as stabilizers of polymers and polymeric compositions.
摘要:
New N,N'-di-(hydroxy-phenyl) derivatives of piperazine are disclosed. These new compounds are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation.A process for producing the new compounds is also disclosed, as well as the polymeric compositions stabilized with said new compounds.
摘要:
New polyesters of N,N-di-alkanol-amines with di-(hydroxy-alkyl-benzyl) malonic acids are disclosed.The new polyesters are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation.A process for producing the new polyesters is also disclosed, as well as the polymeric compositions stabilized with said new polyesters.
摘要:
Perfluoropolyether compounds and mixtures thereof having the formula:A--O--(C.sub.3 F.sub.6 O).sub.P --(CF.sub.2 O).sub.Q --(C.sub.2 F.sub.4 O).sub.R --CF(Z)--CO--N(R)Arwherein the perfluoroalkyleneoxy groups are randomly distributed and A is a perfluoroalkyl group or a --CF(Z)--CO--N(R)Ar group; P, Q and R are zero but not simultaneously or numbers from 1 to 100, the sum of P, Q and R being 3 to 200; Z is a fluorine atom or a CF.sub.3 group; Ar is an aryl group; and R is hydrogen, alkyl, alkyl-aryl or an aryl group.These compounds are excellent stabilizers for perfluoropolyether fluids of the formula:X--O--(C.sub.3 F.sub.6 O).sub.P --(CF.sub.2 O).sub.q --(C.sub.2 F.sub.4 O).sub.r --Ywherein p, q and r are each zero or numbers from 1 to 100, the sum of p, q and r being 6 to 200, and X and Y are the same or different and are perfluoroalkyl groups having 1 to 3 carbon atoms.
摘要翻译:全氟聚醚化合物及其具有下式的混合物:AO-(C 3 F 6 O)P-(CF 2 O)Q-(C 2 F 4 O)R-CF(Z)-CO-N(R)Ar,其中全氟亚烷基氧基是随机分布的,A是全氟烷基 基团或-CF(Z)-CO-N(R)Ar基团; P,Q和R为零但不同时或数字从1到100,P,Q和R之和为3至200; Z是氟原子或CF 3基团; Ar是芳基; 和R是氢,烷基,烷基 - 芳基或芳基。 这些化合物是具有下式的全氟聚醚流体的优异稳定剂:XO-(C 3 F 6 O)P - (CF 2 O)q - (C 2 F 4 O)r Y其中p,q和r各自为零或数字为1至100,p,q r为6〜200,X和Y相同或不同,为碳原子数1〜3的全氟烷基。
摘要:
New polycondensates of alkyl-substituted piperidines are disclosed. These new polycondensates are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation.A process for producing the new polycondensates is also disclosed, as well as the polymeric compositions stabilized with said new polycondensates.